Attachment 1447777 Details for Bug 1149445 – the threads backtrace of managedsave deadlock

the threads backtrace of managedsave deadlock

gdb.txt (text/plain), 134.30 KB, created by Han Han on 2018-06-05 09:24:19 UTC

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Creator: Han Han

Created: 2018-06-05 09:24:19 UTC

Size: 134.30 KB

patch

obsolete

>
>Thread 5 (Thread 0x7fd73f1ff700 (LWP 30170)):
>#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
>No locals.
>#1  0x000055c73b655710 in qemu_cond_wait (cond=cond@entry=0x55c73d2dbcb0, mutex=mutex@entry=0x55c73d2dbce8) at util/qemu-thread-posix.c:161
>        err = <optimized out>
>        __PRETTY_FUNCTION__ = "qemu_cond_wait"
>        __func__ = "qemu_cond_wait"
>#2  0x000055c73b5890fb in vnc_worker_thread_loop (queue=queue@entry=0x55c73d2dbcb0) at ui/vnc-jobs.c:205
>        job = <optimized out>
>        entry = <optimized out>
>        tmp = <optimized out>
>        vs = {sioc = 0x0, ioc = 0x0, ioc_tag = 0, disconnecting = 0, dirty = {{0, 0, 0} <repeats 2048 times>}, lossy_rect = 0x0, vd = 0x0, need_update = 0, 
>          force_update = 0, has_dirty = 0, features = 0, absolute = 0, last_x = 0, last_y = 0, last_bmask = 0, client_width = 0, client_height = 0, share_mode = 0, 
>          vnc_encoding = 0, major = 0, minor = 0, auth = 0, subauth = 0, challenge = '\000' <repeats 15 times>, tls = 0x0, sasl = {conn = 0x0, wantSSF = false, 
>            runSSF = false, waitWriteSSF = 0, encoded = 0x0, encodedLength = 0, encodedOffset = 0, username = 0x0, mechlist = 0x0}, encode_ws = false, websocket = false, 
>          info = 0x0, output = {name = 0x0, capacity = 0, offset = 0, avg_size = 0, buffer = 0x0}, input = {name = 0x0, capacity = 0, offset = 0, avg_size = 0, 
>            buffer = 0x0}, write_pixels = 0x0, client_pf = {bits_per_pixel = 0 '\000', bytes_per_pixel = 0 '\000', depth = 0 '\000', rmask = 0, gmask = 0, bmask = 0, 
>            amask = 0, rshift = 0 '\000', gshift = 0 '\000', bshift = 0 '\000', ashift = 0 '\000', rmax = 0 '\000', gmax = 0 '\000', bmax = 0 '\000', amax = 0 '\000', 
>            rbits = 0 '\000', gbits = 0 '\000', bbits = 0 '\000', abits = 0 '\000'}, client_format = 0, client_be = false, audio_cap = 0x0, as = {freq = 0, nchannels = 0, 
>            fmt = AUD_FMT_U8, endianness = 0}, read_handler = 0x0, read_handler_expect = 0, modifiers_state = '\000' <repeats 255 times>, abort = false, output_mutex = {
>            lock = {__data = {__lock = 0, __count = 0, __owner = 0, __nusers = 0, __kind = 0, __spins = 0, __elision = 0, __list = {__prev = 0x0, __next = 0x0}}, 
>              __size = '\000' <repeats 39 times>, __align = 0}, initialized = false}, bh = 0x0, jobs_buffer = {name = 0x0, capacity = 0, offset = 0, avg_size = 0, 
>            buffer = 0x0}, tight = {type = 0, quality = 0 '\000', compression = 0 '\000', pixel24 = 0 '\000', tight = {name = 0x0, capacity = 0, offset = 0, avg_size = 0, 
>              buffer = 0x0}, tmp = {name = 0x0, capacity = 0, offset = 0, avg_size = 0, buffer = 0x0}, zlib = {name = 0x0, capacity = 0, offset = 0, avg_size = 0, 
>              buffer = 0x0}, gradient = {name = 0x0, capacity = 0, offset = 0, avg_size = 0, buffer = 0x0}, png = {name = 0x0, capacity = 0, offset = 0, avg_size = 0, 
>              buffer = 0x0}, levels = {0, 0, 0, 0}, stream = {{next_in = 0x0, avail_in = 0, total_in = 0, next_out = 0x0, avail_out = 0, total_out = 0, msg = 0x0, 
>                state = 0x0, zalloc = 0x0, zfree = 0x0, opaque = 0x0, data_type = 0, adler = 0, reserved = 0}, {next_in = 0x0, avail_in = 0, total_in = 0, next_out = 0x0, 
>                avail_out = 0, total_out = 0, msg = 0x0, state = 0x0, zalloc = 0x0, zfree = 0x0, opaque = 0x0, data_type = 0, adler = 0, reserved = 0}, {next_in = 0x0, 
>                avail_in = 0, total_in = 0, next_out = 0x0, avail_out = 0, total_out = 0, msg = 0x0, state = 0x0, zalloc = 0x0, zfree = 0x0, opaque = 0x0, data_type = 0, 
>                adler = 0, reserved = 0}, {next_in = 0x0, avail_in = 0, total_in = 0, next_out = 0x0, avail_out = 0, total_out = 0, msg = 0x0, state = 0x0, zalloc = 0x0, 
>                zfree = 0x0, opaque = 0x0, data_type = 0, adler = 0, reserved = 0}}}, zlib = {zlib = {name = 0x0, capacity = 0, offset = 0, avg_size = 0, buffer = 0x0}, 
>            tmp = {name = 0x0, capacity = 0, offset = 0, avg_size = 0, buffer = 0x0}, stream = {next_in = 0x0, avail_in = 0, total_in = 0, next_out = 0x0, avail_out = 0, 
>              total_out = 0, msg = 0x0, state = 0x0, zalloc = 0x0, zfree = 0x0, opaque = 0x0, data_type = 0, adler = 0, reserved = 0}, level = 0}, hextile = {
>            send_tile = 0x0}, zrle = {type = 0, fb = {name = 0x0, capacity = 0, offset = 0, avg_size = 0, buffer = 0x0}, zrle = {name = 0x0, capacity = 0, offset = 0, 
>              avg_size = 0, buffer = 0x0}, tmp = {name = 0x0, capacity = 0, offset = 0, avg_size = 0, buffer = 0x0}, zlib = {name = 0x0, capacity = 0, offset = 0, 
>              avg_size = 0, buffer = 0x0}, stream = {next_in = 0x0, avail_in = 0, total_in = 0, next_out = 0x0, avail_out = 0, total_out = 0, msg = 0x0, state = 0x0, 
>              zalloc = 0x0, zfree = 0x0, opaque = 0x0, data_type = 0, adler = 0, reserved = 0}, palette = {pool = {{idx = 0, color = 0, next = {le_next = 0x0, 
>                    le_prev = 0x0}} <repeats 256 times>}, size = 0, max = 0, bpp = 0, table = {{lh_first = 0x0} <repeats 256 times>}}}, zywrle = {buf = {
>              0 <repeats 4096 times>}}, mouse_mode_notifier = {notify = 0x0, node = {le_next = 0x0, le_prev = 0x0}}, next = {tqe_next = 0x0, tqe_prev = 0x0}}
>        n_rectangles = <optimized out>
>        saved_offset = <optimized out>
>#3  0x000055c73b589638 in vnc_worker_thread (arg=0x55c73d2dbcb0) at ui/vnc-jobs.c:312
>        queue = 0x55c73d2dbcb0
>#4  0x00007fd75ac8add5 in start_thread (arg=0x7fd73f1ff700) at pthread_create.c:308
>        __res = <optimized out>
>        pd = 0x7fd73f1ff700
>        now = <optimized out>
>        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140562453755648, 1006599087869814073, 0, 140562453756352, 140562453755648, 94314213260464, -984504128649140935, 
>                -984426738428910279}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
>        not_first_call = <optimized out>
>        pagesize_m1 = <optimized out>
>        sp = <optimized out>
>        freesize = <optimized out>
>#5  0x00007fd75a9b49ad in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113
>No locals.
>
>Thread 4 (Thread 0x7fd74a9c2700 (LWP 30164)):
>#0  0x00007fd75ac91ead in nanosleep () at ../sysdeps/unix/syscall-template.S:81
>No locals.
>#1  0x00007fd75c554f18 in g_usleep (microseconds=microseconds@entry=10000) at gtimer.c:259
>        request = {tv_sec = 0, tv_nsec = 10000000}
>        remaining = {tv_sec = 0, tv_nsec = 5904639}
>#2  0x000055c73b665a0c in call_rcu_thread (opaque=<optimized out>) at util/rcu.c:244
>        tries = 0
>        n = 0
>        node = <optimized out>
>#3  0x00007fd75ac8add5 in start_thread (arg=0x7fd74a9c2700) at pthread_create.c:308
>        __res = <optimized out>
>        pd = 0x7fd74a9c2700
>        now = <optimized out>
>        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140562646443776, 1006599087869814073, 0, 140562646444480, 140562646443776, 0, -984390842981128903, 
>                -984426738428910279}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
>        not_first_call = <optimized out>
>        pagesize_m1 = <optimized out>
>        sp = <optimized out>
>        freesize = <optimized out>
>#4  0x00007fd75a9b49ad in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113
>No locals.
>
>Thread 3 (Thread 0x7fd74a1c1700 (LWP 30166)):
>#0  0x00007fd75ac90c71 in futex_abstimed_wait (cancel=true, private=0, abstime=0x7fd74a1be5a0, expected=0, futex=0x55c73d441658)
>    at ../nptl/sysdeps/unix/sysv/linux/sem_waitcommon.c:87
>        __to = 0x7fd74a1be4f0
>        _val = 0
>        tv = {tv_sec = 1509432930, tv_usec = 327678}
>        rt = {tv_sec = 10, tv_nsec = 0}
>        sec = <optimized out>
>        nsec = <optimized out>
>        err = <optimized out>
>        oldtype = 0
>#1  do_futex_wait (sem=sem@entry=0x55c73d441658, abstime=abstime@entry=0x7fd74a1be5a0) at ../nptl/sysdeps/unix/sysv/linux/sem_waitcommon.c:223
>        err = <optimized out>
>#2  0x00007fd75ac90d37 in __new_sem_wait_slow (sem=0x55c73d441658, abstime=0x7fd74a1be5a0) at ../nptl/sysdeps/unix/sysv/linux/sem_waitcommon.c:292
>        _buffer = {__routine = 0x7fd75ac90be0 <__sem_wait_cleanup>, __arg = 0x55c73d441658, __canceltype = 0, __prev = 0x0}
>        err = <optimized out>
>        d = 0
>#3  0x00007fd75ac90dd5 in sem_timedwait (sem=sem@entry=0x55c73d441658, abstime=abstime@entry=0x7fd74a1be5a0) at ../nptl/sysdeps/unix/sysv/linux/sem_timedwait.c:37
>No locals.
>#4  0x000055c73b6558d7 in qemu_sem_timedwait (sem=sem@entry=0x55c73d441658, ms=ms@entry=10000) at util/qemu-thread-posix.c:289
>        rc = <optimized out>
>        ts = {tv_sec = 1509432940, tv_nsec = 327678000}
>        __PRETTY_FUNCTION__ = "qemu_sem_timedwait"
>        __func__ = "qemu_sem_timedwait"
>#5  0x000055c73b6512ec in worker_thread (opaque=0x55c73d4415e0) at util/thread-pool.c:92
>        req = <optimized out>
>        ret = <optimized out>
>        pool = 0x55c73d4415e0
>#6  0x00007fd75ac8add5 in start_thread (arg=0x7fd74a1c1700) at pthread_create.c:308
>        __res = <optimized out>
>        pd = 0x7fd74a1c1700
>        now = <optimized out>
>        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140562638051072, 1006599087869814073, 0, 140562638051776, 140562638051072, 94314214725088, -984391943029627591, 
>                -984426738428910279}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
>        not_first_call = <optimized out>
>        pagesize_m1 = <optimized out>
>        sp = <optimized out>
>        freesize = <optimized out>
>#7  0x00007fd75a9b49ad in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113
>No locals.
>
>Thread 2 (Thread 0x7fd760d3e040 (LWP 30163)):
>#0  0x00007fd75a9a9e0f in __GI_ppoll (fds=0x55c73fc88fc0, nfds=6, timeout=<optimized out>, timeout@entry=0x7ffcfb7a1ad0, sigmask=sigmask@entry=0x0)
>    at ../sysdeps/unix/sysv/linux/ppoll.c:56
>        resultvar = 18446744073709551102
>        oldtype = 0
>        tval = {tv_sec = 0, tv_nsec = 949571851}
>        result = <optimized out>
>#1  0x000055c73b651c59 in ppoll (__ss=0x0, __timeout=0x7ffcfb7a1ad0, __nfds=<optimized out>, __fds=<optimized out>) at /usr/include/bits/poll2.h:77
>No locals.
>#2  qemu_poll_ns (fds=<optimized out>, nfds=<optimized out>, timeout=timeout@entry=964830000) at util/qemu-timer.c:334
>        ts = {tv_sec = 0, tv_nsec = 964830000}
>        tvsec = <error reading variable tvsec (That operation is not available on integers of more than 8 bytes.)>
>#3  0x000055c73b652a58 in os_host_main_loop_wait (timeout=964830000) at util/main-loop.c:255
>        context = 0x55c73d2f54a0
>        ret = <optimized out>
>        spin_counter = 0
>#4  main_loop_wait (nonblocking=nonblocking@entry=0) at util/main-loop.c:515
>        ret = -75883772
>        timeout = 1000
>        timeout_ns = <optimized out>
>#5  0x000055c73b33915a in main_loop () at vl.c:1917
>No locals.
>#6  main (argc=<optimized out>, argv=<optimized out>, envp=<optimized out>) at vl.c:4804
>        i = <optimized out>
>        snapshot = <optimized out>
>        linux_boot = <optimized out>
>        initrd_filename = <optimized out>
>        kernel_filename = <optimized out>
>        kernel_cmdline = <optimized out>
>        boot_order = <optimized out>
>        boot_once = 0x0
>        cyls = <optimized out>
>        heads = <optimized out>
>        secs = <optimized out>
>        translation = <optimized out>
>        opts = <optimized out>
>        machine_opts = <optimized out>
>        hda_opts = <optimized out>
>        icount_opts = <optimized out>
>        accel_opts = <optimized out>
>        olist = <optimized out>
>        optind = 14
>        optarg = 0x7ffcfb7a36a2 "xio3130-downstream,port=0x1,chassis=8,id=pci.9,bus=pci.7,addr=0x1"
>        loadvm = <optimized out>
>        machine_class = 0x0
>        cpu_model = <optimized out>
>        vga_model = 0x55c73b6861b9 "std"
>        qtest_chrdev = <optimized out>
>        qtest_log = <optimized out>
>        pid_file = <optimized out>
>        incoming = <optimized out>
>        defconfig = <optimized out>
>        userconfig = <optimized out>
>        nographic = <optimized out>
>        display_type = <optimized out>
>        display_remote = <optimized out>
>        log_mask = <optimized out>
>        log_file = <optimized out>
>        trace_file = <optimized out>
>        maxram_size = <optimized out>
>        ram_slots = <optimized out>
>        vmstate_dump_file = <optimized out>
>        main_loop_err = 0x0
>        err = 0x0
>        list_data_dirs = <optimized out>
>        bdo_queue = {sqh_first = 0x0, sqh_last = 0x7ffcfb7a1c60}
>        __func__ = "main"
>        __FUNCTION__ = "main"
>
>Thread 1 (Thread 0x7fd7494bb700 (LWP 30168)):
>#0  0x00007fd75a8ec1d7 in __GI_raise (sig=sig@entry=6) at ../nptl/sysdeps/unix/sysv/linux/raise.c:56
>        resultvar = 0
>        pid = 30163
>        selftid = 30168
>#1  0x00007fd75a8ed8d0 in __GI_abort () at abort.c:90
>        save_stage = 2
>        act = {__sigaction_handler = {sa_handler = 0x7ffcfb7a3599, sa_sigaction = 0x7ffcfb7a3599}, sa_mask = {__val = {140562915382288, 94314183484208, 2166, 1002711680, 
>              140562913978851, 140562624381344, 4, 95517121728, 140562943558665, 94314213755904, 0, 0, 0, 21474836480, 140562915382288, 140562915394312}}, 
>          sa_flags = 996631209, sa_restorer = 0x55c73b676830 <__PRETTY_FUNCTION__.29915>}
>        sigs = {__val = {32, 0 <repeats 15 times>}}
>#2  0x00007fd75a8e4fcc in __assert_fail_base (fmt=0x7fd75aa40308 "%s%s%s:%u: %s%sAssertion `%s' failed.\n%n", 
>    assertion=assertion@entry=0x55c73b6762a9 "subregion->container == mr", file=file@entry=0x55c73b676330 "/builddir/build/BUILD/qemu-2.10.0/memory.c", 
>    line=line@entry=2166, function=function@entry=0x55c73b676830 <__PRETTY_FUNCTION__.29915> "memory_region_del_subregion") at assert.c:92
>        str = 0x55c73d2dbc20 ""
>        total = 4096
>#3  0x00007fd75a8e5088 in __GI___assert_fail (assertion=assertion@entry=0x55c73b6762a9 "subregion->container == mr", 
>    file=file@entry=0x55c73b676330 "/builddir/build/BUILD/qemu-2.10.0/memory.c", line=line@entry=2166, 
>    function=function@entry=0x55c73b676830 <__PRETTY_FUNCTION__.29915> "memory_region_del_subregion") at assert.c:101
>No locals.
>#4  0x000055c73b38752f in memory_region_del_subregion (mr=0x55c73d55c380, subregion=0x55c73d34d9e0) at /usr/src/debug/qemu-2.10.0/memory.c:2166
>        __PRETTY_FUNCTION__ = "memory_region_del_subregion"
>#5  0x000055c73b4fd093 in pci_bridge_region_del (br=br@entry=0x55c73fa54000, w=0x55c73d34d800) at hw/pci/pci_bridge.c:219
>        pd = 0x55c73fa54000
>        __func__ = "pci_bridge_region_del"
>        parent = 0x55c73d55b990
>#6  0x000055c73b4fd564 in pci_bridge_update_mappings (br=br@entry=0x55c73fa54000) at hw/pci/pci_bridge.c:243
>        w = 0x55c73d34d800
>#7  0x000055c73b4fd620 in pci_bridge_write_config (d=0x55c73fa54000, address=28, val=255, len=1) at hw/pci/pci_bridge.c:270
>        s = 0x55c73fa54000
>        __func__ = "pci_bridge_write_config"
>        oldctl = 0
>        newctl = <optimized out>
>#8  0x000055c73b4f5dba in xio3130_downstream_write_config (d=0x55c73fa54000, address=28, val=255, len=1) at hw/pci-bridge/xio3130_downstream.c:43
>No locals.
>#9  0x000055c73b3848c3 in memory_region_write_accessor (mr=<optimized out>, addr=<optimized out>, value=<optimized out>, size=<optimized out>, shift=<optimized out>, 
>    mask=<optimized out>, attrs=...) at /usr/src/debug/qemu-2.10.0/memory.c:529
>        tmp = <optimized out>
>#10 0x000055c73b382189 in access_with_adjusted_size (addr=addr@entry=0, value=value@entry=0x7fd7494b84a8, size=size@entry=1, access_size_min=<optimized out>, 
>    access_size_max=<optimized out>, access=access@entry=0x55c73b384880 <memory_region_write_accessor>, mr=mr@entry=0x55c73ddb63f0, attrs=attrs@entry=...)
>    at /usr/src/debug/qemu-2.10.0/memory.c:595
>        access_mask = 255
>        access_size = 1
>        i = <optimized out>
>        r = 0
>#11 0x000055c73b385865 in memory_region_dispatch_write (mr=<optimized out>, addr=0, data=255, size=<optimized out>, attrs=...) at /usr/src/debug/qemu-2.10.0/memory.c:1337
>No locals.
>#12 0x000055c73b3407e3 in address_space_write (as=0x55c73bc12d20 <address_space_io>, addr=<optimized out>, attrs=..., buf=<optimized out>, len=<optimized out>)
>    at /usr/src/debug/qemu-2.10.0/exec.c:2942
>        l = 1
>        addr1 = 0
>        mr = <optimized out>
>        result = 0
>#13 0x000055c73b340e0d in address_space_rw (as=<optimized out>, addr=addr@entry=3324, attrs=..., attrs@entry=..., 
>    buf=buf@entry=0x7fd760d6d000 <Address 0x7fd760d6d000 out of bounds>, len=len@entry=1, is_write=is_write@entry=true) at /usr/src/debug/qemu-2.10.0/exec.c:3089
>No locals.
>#14 0x000055c73b39357a in kvm_handle_io (count=1, size=1, direction=<optimized out>, data=<optimized out>, attrs=..., port=3324)
>    at /usr/src/debug/qemu-2.10.0/accel/kvm/kvm-all.c:1817
>        i = 0
>        ptr = 0x7fd760d6d000 <Address 0x7fd760d6d000 out of bounds>
>#15 kvm_cpu_exec (cpu=cpu@entry=0x55c73dac4000) at /usr/src/debug/qemu-2.10.0/accel/kvm/kvm-all.c:2057
>        attrs = {unspecified = 0, secure = 0, user = 0, requester_id = 0}
>        run = <optimized out>
>        ret = <optimized out>
>        run_ret = <optimized out>
>#16 0x000055c73b3731ba in qemu_kvm_cpu_thread_fn (arg=0x55c73dac4000) at /usr/src/debug/qemu-2.10.0/cpus.c:1128
>        cpu = 0x55c73dac4000
>        r = <optimized out>
>#17 0x00007fd75ac8add5 in start_thread (arg=0x7fd7494bb700) at pthread_create.c:308
>        __res = <optimized out>
>        pd = 0x7fd7494bb700
>        now = <optimized out>
>        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140562624395008, 1006599087869814073, 0, 140562624395712, 140562624395008, 94314221551616, -984394828173908679, 
>                -984426738428910279}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
>        not_first_call = <optimized out>
>        pagesize_m1 = <optimized out>
>        sp = <optimized out>
>        freesize = <optimized out>
>#18 0x00007fd75a9b49ad in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113
>No locals.
>
>Thread 4 (Thread 0x7f0cb9ebf700 (LWP 10355)):
>#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
>No locals.
>#1  0x000055634cdde650 in qemu_futex_wait (val=<optimized out>, f=<optimized out>) at /usr/src/debug/qemu-2.10.0/include/qemu/futex.h:26
>No locals.
>#2  qemu_event_wait (ev=ev@entry=0x55634d7e9248 <rcu_call_ready_event>) at util/qemu-thread-posix.c:442
>        value = <optimized out>
>        __PRETTY_FUNCTION__ = "qemu_event_wait"
>#3  0x000055634cdee54e in call_rcu_thread (opaque=<optimized out>) at util/rcu.c:249
>        tries = 0
>        n = <optimized out>
>        node = <optimized out>
>#4  0x00007f0cca3ccdd5 in start_thread (arg=0x7f0cb9ebf700) at pthread_create.c:308
>        __res = <optimized out>
>        pd = 0x7f0cb9ebf700
>        now = <optimized out>
>        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {139692635584256, 1885717522523371772, 0, 8392704, 0, 139692635584256, -2003510507226777348, -2003259191132276484}, 
>              mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
>        not_first_call = <optimized out>
>        pagesize_m1 = <optimized out>
>        sp = <optimized out>
>        freesize = <optimized out>
>#5  0x00007f0cca0f6aed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113
>No locals.
>
>Thread 3 (Thread 0x7f0cb6aa9700 (LWP 10366)):
>#0  __lll_lock_wait () at ../nptl/sysdeps/unix/sysv/linux/x86_64/lowlevellock.S:135
>No locals.
>#1  0x00007f0cca3d5d8c in _L_cond_lock_789 () from /usr/lib64/libpthread-2.17.so
>No symbol table info available.
>#2  0x00007f0cca3d5c21 in __pthread_mutex_cond_lock (mutex=0x55634d3a3ac0 <qemu_global_mutex>) at ../nptl/pthread_mutex_lock.c:79
>        type = 0
>        id = <optimized out>
>#3  0x00007f0cca3d09d5 in pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:259
>No locals.
>#4  0x000055634cdde220 in qemu_cond_wait (cond=<optimized out>, mutex=mutex@entry=0x55634d3a3ac0 <qemu_global_mutex>) at util/qemu-thread-posix.c:161
>        err = <optimized out>
>        __PRETTY_FUNCTION__ = "qemu_cond_wait"
>        __func__ = "qemu_cond_wait"
>#5  0x000055634caf5b6b in qemu_kvm_wait_io_event (cpu=<optimized out>) at /usr/src/debug/qemu-2.10.0/cpus.c:1095
>No locals.
>#6  qemu_kvm_cpu_thread_fn (arg=0x55634ef94000) at /usr/src/debug/qemu-2.10.0/cpus.c:1133
>        cpu = 0x55634ef94000
>        r = <optimized out>
>#7  0x00007f0cca3ccdd5 in start_thread (arg=0x7f0cb6aa9700) at pthread_create.c:308
>        __res = <optimized out>
>        pd = 0x7f0cb6aa9700
>        now = <optimized out>
>        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {139692580968192, 1885717522523371772, 0, 8392704, 0, 139692580968192, -2003530860003051268, -2003259191132276484}, 
>              mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
>        not_first_call = <optimized out>
>        pagesize_m1 = <optimized out>
>        sp = <optimized out>
>        freesize = <optimized out>
>#8  0x00007f0cca0f6aed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113
>No locals.
>
>Thread 2 (Thread 0x7f0c6d5ff700 (LWP 10391)):
>#0  0x00007f0cca0ebe4d in poll () at ../sysdeps/unix/syscall-template.S:81
>No locals.
>#1  0x00007f0ccbc6ebdc in g_main_context_poll (priority=2147483647, n_fds=2, fds=0x556350868410, timeout=2147483647, context=0x55634ea59ad0) at gmain.c:4185
>        ret = <optimized out>
>        errsv = <optimized out>
>        poll_func = 0x7f0ccbc7e8f0 <g_poll>
>#2  g_main_context_iterate (context=0x55634ea59ad0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3879
>        max_priority = 2147483647
>        timeout = 2147483647
>        some_ready = <optimized out>
>        nfds = 2
>        allocated_nfds = 2
>        fds = 0x556350868410
>#3  0x00007f0ccbc6ef2a in g_main_loop_run (loop=0x556350868400) at gmain.c:4080
>        __FUNCTION__ = "g_main_loop_run"
>#4  0x00007f0ccc196f2a in red_worker_main (arg=0x55634ebbb880) at red-worker.c:1372
>        worker = 0x55634ebbb880
>        __FUNCTION__ = "red_worker_main"
>        loop = 0x556350868400
>#5  0x00007f0cca3ccdd5 in start_thread (arg=0x7f0c6d5ff700) at pthread_create.c:308
>        __res = <optimized out>
>        pd = 0x7f0c6d5ff700
>        now = <optimized out>
>        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {139691351340800, 1885717522523371772, 0, 8392704, 0, 139691351340800, -2003063177792964356, -2003259191132276484}, 
>              mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
>        not_first_call = <optimized out>
>        pagesize_m1 = <optimized out>
>        sp = <optimized out>
>        freesize = <optimized out>
>#6  0x00007f0cca0f6aed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113
>No locals.
>
>Thread 1 (Thread 0x7f0cd0484040 (LWP 10340)):
>#0  0x00007f0cca02e1b7 in __GI_raise (sig=sig@entry=6) at ../nptl/sysdeps/unix/sysv/linux/raise.c:56
>        resultvar = 0
>        pid = 10340
>        selftid = 10340
>#1  0x00007f0cca02f8a8 in __GI_abort () at abort.c:90
>        save_stage = 2
>        act = {__sigaction_handler = {sa_handler = 0x7f0cd0484040, sa_sigaction = 0x7f0cd0484040}, sa_mask = {__val = {0, 15, 140721466448416, 4294967295, 0, 
>              93885048694384, 139692909245536, 139692926582016, 139692926582208, 93885019048720, 140721466448480, 139693010723248, 93885019048528, 642, 93884980608059, 
>              0}}, sa_flags = -876134386, sa_restorer = 0x55634f35ca50}
>        sigs = {__val = {32, 0 <repeats 15 times>}}
>#2  0x000055634cde12a4 in error_handle_fatal (errp=<optimized out>, err=0x55634f35ca50) at util/error.c:38
>        errp = 0x55634d7e9000 <error_abort>
>        err = 0x55634f35ca50
>#3  0x000055634cde137d in error_setv (errp=0x55634d7e9000 <error_abort>, src=0x55634ceb3c3b "block/file-posix.c", line=642, 
>    func=0x55634ceb4500 <__func__.28523> "raw_apply_lock_bytes", err_class=ERROR_CLASS_GENERIC_ERROR, fmt=<optimized out>, ap=0x7ffc45051af0, suffix=0x0)
>    at util/error.c:71
>        err = 0x55634f35ca50
>        saved_errno = 13
>#4  0x000055634cde150e in error_setg_internal (errp=errp@entry=0x55634d7e9000 <error_abort>, src=src@entry=0x55634ceb3c3b "block/file-posix.c", line=<optimized out>, 
>    func=<optimized out>, fmt=<optimized out>) at util/error.c:95
>        ap = {{gp_offset = 48, fp_offset = 48, overflow_arg_area = 0x7ffc45051bd0, reg_save_area = 0x7ffc45051b10}}
>#5  0x000055634cd5c0fd in raw_apply_lock_bytes (perm_lock_bits=11, shared_perm_lock_bits=18446744073709551594, unlock=unlock@entry=false, 
>    errp=errp@entry=0x55634d7e9000 <error_abort>, s=0x55634ebe3a40) at block/file-posix.c:648
>        off = <optimized out>
>        ret = -13
>        i = 0
>#6  0x000055634cd5c2a2 in raw_handle_perm_lock (bs=<optimized out>, op=RAW_PL_PREPARE, new_perm=11, new_shared=21, errp=0x55634d7e9000 <error_abort>)
>    at block/file-posix.c:738
>        s = 0x55634ebe3a40
>        ret = 0
>        local_err = 0x0
>        __PRETTY_FUNCTION__ = "raw_handle_perm_lock"
>#7  0x000055634cd1731f in bdrv_check_perm (bs=bs@entry=0x55634ec17400, q=0x0, q@entry=0xe703e72a11eb0d00, cumulative_perms=11, cumulative_shared_perms=21, 
>    ignore_children=ignore_children@entry=0x5563506595c0, errp=errp@entry=0x55634d7e9000 <error_abort>) at block.c:1616
>        drv = <optimized out>
>        c = <optimized out>
>        ret = 11
>        __func__ = "bdrv_check_perm"
>        __PRETTY_FUNCTION__ = "bdrv_check_perm"
>#8  0x000055634cd1717b in bdrv_check_update_perm (bs=0x55634ec17400, q=0xe703e72a11eb0d00, q@entry=0x0, new_used_perm=new_used_perm@entry=11, 
>    new_shared_perm=new_shared_perm@entry=21, ignore_children=ignore_children@entry=0x5563506595c0, errp=errp@entry=0x55634d7e9000 <error_abort>) at block.c:1802
>        c = <optimized out>
>        cumulative_perms = <optimized out>
>        cumulative_shared_perms = <optimized out>
>        __PRETTY_FUNCTION__ = "bdrv_check_update_perm"
>        __func__ = "bdrv_check_update_perm"
>#9  0x000055634cd1740c in bdrv_child_check_perm (errp=0x55634d7e9000 <error_abort>, ignore_children=0x5563506595c0, shared=21, perm=11, q=0x0, c=0x55634eb8caf0)
>    at block.c:1815
>        ret = <optimized out>
>#10 bdrv_check_perm (bs=bs@entry=0x55634ec14000, q=q@entry=0x0, cumulative_perms=cumulative_perms@entry=0, cumulative_shared_perms=cumulative_shared_perms@entry=31, 
>    ignore_children=ignore_children@entry=0x0, errp=0x55634d7e9000 <error_abort>) at block.c:1632
>        cur_perm = 11
>        cur_shared = 21
>        drv = <optimized out>
>        c = 0x55634eb8caf0
>        ret = 11
>        __func__ = "bdrv_check_perm"
>        __PRETTY_FUNCTION__ = "bdrv_check_perm"
>#11 0x000055634cd1763b in bdrv_replace_child (child=child@entry=0x55634eb8ca50, new_bs=new_bs@entry=0x0) at block.c:1987
>        old_bs = 0x55634ec14000
>        perm = 0
>        shared_perm = 31
>#12 0x000055634cd176d7 in bdrv_detach_child (child=0x55634eb8ca50) at block.c:2061
>No locals.
>#13 0x000055634cd1abb9 in bdrv_root_unref_child (child=<optimized out>) at block.c:2072
>        child_bs = 0x55634ec14000
>#14 0x000055634cd57c69 in blk_remove_bs (blk=blk@entry=0x55634ea74780) at block/block-backend.c:674
>        tgm = 0x55634ea747c0
>        bs = <optimized out>
>#15 0x000055634cd57ccb in blk_remove_all_bs () at block/block-backend.c:421
>        ctx = 0x55634ebb3e00
>        blk = 0x55634ea74780
>#16 0x000055634cd17da8 in bdrv_close_all () at block.c:3224
>        __PRETTY_FUNCTION__ = "bdrv_close_all"
>#17 0x000055634cabb97e in main (argc=<optimized out>, argv=<optimized out>, envp=<optimized out>) at vl.c:4833
>        i = <optimized out>
>        snapshot = <optimized out>
>        linux_boot = <optimized out>
>        initrd_filename = <optimized out>
>        kernel_filename = <optimized out>
>        kernel_cmdline = <optimized out>
>        boot_order = <optimized out>
>        boot_once = 0x0
>        cyls = <optimized out>
>        heads = <optimized out>
>        secs = <optimized out>
>        translation = <optimized out>
>        opts = <optimized out>
>        machine_opts = <optimized out>
>        hda_opts = <optimized out>
>        icount_opts = <optimized out>
>        accel_opts = <optimized out>
>        olist = <optimized out>
>        optind = 106
>        optarg = 0x7ffc45054f4a "timestamp=on"
>        loadvm = <optimized out>
>        machine_class = 0x0
>        cpu_model = <optimized out>
>        vga_model = 0x0
>        qtest_chrdev = <optimized out>
>        qtest_log = <optimized out>
>        pid_file = <optimized out>
>        incoming = <optimized out>
>        defconfig = <optimized out>
>        userconfig = <optimized out>
>        nographic = <optimized out>
>        display_type = <optimized out>
>        display_remote = <optimized out>
>        log_mask = <optimized out>
>        log_file = <optimized out>
>        trace_file = <optimized out>
>        maxram_size = <optimized out>
>        ram_slots = <optimized out>
>        vmstate_dump_file = <optimized out>
>        main_loop_err = 0x0
>        err = 0x0
>        list_data_dirs = <optimized out>
>        bdo_queue = {sqh_first = 0x0, sqh_last = 0x7ffc45051fa0}
>        __func__ = "main"
>        __FUNCTION__ = "main"
>
>Thread 24 (Thread 0x7f09ee2c9700 (LWP 12741)):
>#0  0x00007f0a48778cc1 in do_futex_wait (cancel=true, private=0, abstime=0x7f09ee2c65a0, expected=0, futex=0x556214cc3b98)
>    at ../nptl/sysdeps/unix/sysv/linux/sem_waitcommon.c:87
>        __to = 0x7f09ee2c64f0
>        _val = 0
>        tv = {tv_sec = 1527063739, tv_usec = 351393}
>        rt = {tv_sec = 10, tv_nsec = 0}
>        sec = <optimized out>
>        nsec = <optimized out>
>        err = <optimized out>
>        oldtype = 0
>        err = <optimized out>
>#1  0x00007f0a48778cc1 in do_futex_wait (sem=sem@entry=0x556214cc3b98, abstime=abstime@entry=0x7f09ee2c65a0) at ../nptl/sysdeps/unix/sysv/linux/sem_waitcommon.c:223
>        err = <optimized out>
>#2  0x00007f0a48778d87 in __new_sem_wait_slow (sem=0x556214cc3b98, abstime=0x7f09ee2c65a0) at ../nptl/sysdeps/unix/sysv/linux/sem_waitcommon.c:292
>        _buffer = {__routine = 0x7f0a48778c30 <__sem_wait_cleanup>, __arg = 0x556214cc3b98, __canceltype = 348928816, __prev = 0x0}
>        err = <optimized out>
>        d = 60129542144
>#3  0x00007f0a48778e25 in sem_timedwait (sem=sem@entry=0x556214cc3b98, abstime=abstime@entry=0x7f09ee2c65a0) at ../nptl/sysdeps/unix/sysv/linux/sem_timedwait.c:37
>#4  0x0000556212c79e67 in qemu_sem_timedwait (sem=sem@entry=0x556214cc3b98, ms=ms@entry=10000) at util/qemu-thread-posix.c:289
>        rc = <optimized out>
>        ts = {tv_sec = 1527063749, tv_nsec = 351393000}
>        __PRETTY_FUNCTION__ = "qemu_sem_timedwait"
>        __func__ = "qemu_sem_timedwait"
>#5  0x0000556212c7585c in worker_thread (opaque=0x556214cc3b20) at util/thread-pool.c:92
>        req = <optimized out>
>        ret = <optimized out>
>        pool = 0x556214cc3b20
>#6  0x00007f0a48772dd5 in start_thread (arg=0x7f09ee2c9700) at pthread_create.c:308
>        __res = <optimized out>
>        pd = 0x7f09ee2c9700
>        now = <optimized out>
>        unwind_buf = 
>              {cancel_jmp_buf = {{jmp_buf = {139680627332864, -7117437805452392306, 0, 8392704, 0, 139680627332864, 7145546154268362894, 7146465940587743374}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
>        not_first_call = <optimized out>
>        pagesize_m1 = <optimized out>
>        sp = <optimized out>
>        freesize = <optimized out>
>#7  0x00007f0a4849cb3d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113
>
>Thread 23 (Thread 0x7f09e56a6700 (LWP 12767)):
>#0  0x00007f0a48778cc1 in do_futex_wait (cancel=true, private=0, abstime=0x7f09e56a35a0, expected=0, futex=0x556214cc3b98)
>    at ../nptl/sysdeps/unix/sysv/linux/sem_waitcommon.c:87
>        __to = 0x7f09e56a34f0
>        _val = 0
>        tv = {tv_sec = 1527063739, tv_usec = 343124}
>        rt = {tv_sec = 9, tv_nsec = 999999000}
>        sec = <optimized out>
>        nsec = <optimized out>
>        err = <optimized out>
>        oldtype = 0
>        err = <optimized out>
>#1  0x00007f0a48778cc1 in do_futex_wait (sem=sem@entry=0x556214cc3b98, abstime=abstime@entry=0x7f09e56a35a0) at ../nptl/sysdeps/unix/sysv/linux/sem_waitcommon.c:223
>        err = <optimized out>
>#2  0x00007f0a48778d87 in __new_sem_wait_slow (sem=0x556214cc3b98, abstime=0x7f09e56a35a0) at ../nptl/sysdeps/unix/sysv/linux/sem_waitcommon.c:292
>        _buffer = {__routine = 0x7f0a48778c30 <__sem_wait_cleanup>, __arg = 0x556214cc3b98, __canceltype = 348928816, __prev = 0x0}
>        err = <optimized out>
>        d = 55834574848
>#3  0x00007f0a48778e25 in sem_timedwait (sem=sem@entry=0x556214cc3b98, abstime=abstime@entry=0x7f09e56a35a0) at ../nptl/sysdeps/unix/sysv/linux/sem_timedwait.c:37
>#4  0x0000556212c79e67 in qemu_sem_timedwait (sem=sem@entry=0x556214cc3b98, ms=ms@entry=10000) at util/qemu-thread-posix.c:289
>        rc = <optimized out>
>        ts = {tv_sec = 1527063749, tv_nsec = 343123000}
>        __PRETTY_FUNCTION__ = "qemu_sem_timedwait"
>        __func__ = "qemu_sem_timedwait"
>#5  0x0000556212c7585c in worker_thread (opaque=0x556214cc3b20) at util/thread-pool.c:92
>        req = <optimized out>
>        ret = <optimized out>
>        pool = 0x556214cc3b20
>#6  0x00007f0a48772dd5 in start_thread (arg=0x7f09e56a6700) at pthread_create.c:308
>        __res = <optimized out>
>        pd = 0x7f09e56a6700
>        now = <optimized out>
>        unwind_buf = 
>              {cancel_jmp_buf = {{jmp_buf = {139680480388864, -7117437805452392306, 0, 8392704, 0, 139680480388864, 7145526863959623822, 7146465940587743374}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
>        not_first_call = <optimized out>
>        pagesize_m1 = <optimized out>
>        sp = <optimized out>
>        freesize = <optimized out>
>#7  0x00007f0a4849cb3d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113
>
>Thread 22 (Thread 0x7f09e9eaf700 (LWP 12758)):
>#0  0x00007f0a48778cc1 in do_futex_wait (cancel=true, private=0, abstime=0x7f09e9eac5a0, expected=0, futex=0x556214cc3b98)
>    at ../nptl/sysdeps/unix/sysv/linux/sem_waitcommon.c:87
>        __to = 0x7f09e9eac4f0
>        _val = 0
>        tv = {tv_sec = 1527063739, tv_usec = 374962}
>        rt = {tv_sec = 10, tv_nsec = 0}
>        sec = <optimized out>
>        nsec = <optimized out>
>        err = <optimized out>
>        oldtype = 0
>        err = <optimized out>
>#1  0x00007f0a48778cc1 in do_futex_wait (sem=sem@entry=0x556214cc3b98, abstime=abstime@entry=0x7f09e9eac5a0) at ../nptl/sysdeps/unix/sysv/linux/sem_waitcommon.c:223
>        err = <optimized out>
>#2  0x00007f0a48778d87 in __new_sem_wait_slow (sem=0x556214cc3b98, abstime=0x7f09e9eac5a0) at ../nptl/sysdeps/unix/sysv/linux/sem_waitcommon.c:292
>        _buffer = {__routine = 0x7f0a48778c30 <__sem_wait_cleanup>, __arg = 0x556214cc3b98, __canceltype = 339223040, __prev = 0x0}
>        err = <optimized out>
>        d = 68719476736
>#3  0x00007f0a48778e25 in sem_timedwait (sem=sem@entry=0x556214cc3b98, abstime=abstime@entry=0x7f09e9eac5a0) at ../nptl/sysdeps/unix/sysv/linux/sem_timedwait.c:37
>#4  0x0000556212c79e67 in qemu_sem_timedwait (sem=sem@entry=0x556214cc3b98, ms=ms@entry=10000) at util/qemu-thread-posix.c:289
>        rc = <optimized out>
>        ts = {tv_sec = 1527063749, tv_nsec = 374962000}
>        __PRETTY_FUNCTION__ = "qemu_sem_timedwait"
>        __func__ = "qemu_sem_timedwait"
>#5  0x0000556212c7585c in worker_thread (opaque=0x556214cc3b20) at util/thread-pool.c:92
>        req = <optimized out>
>        ret = <optimized out>
>        pool = 0x556214cc3b20
>#6  0x00007f0a48772dd5 in start_thread (arg=0x7f09e9eaf700) at pthread_create.c:308
>        __res = <optimized out>
>        pd = 0x7f09e9eaf700
>        now = <optimized out>
>        unwind_buf = 
>              {cancel_jmp_buf = {{jmp_buf = {139680555923200, -7117437805452392306, 0, 8392704, 0, 139680555923200, 7145554352287189134, 7146465940587743374}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
>        not_first_call = <optimized out>
>        pagesize_m1 = <optimized out>
>        sp = <optimized out>
>        freesize = <optimized out>
>#7  0x00007f0a4849cb3d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113
>
>Thread 21 (Thread 0x7f09e6ea9700 (LWP 12764)):
>#0  0x00007f0a48778cc1 in do_futex_wait (cancel=true, private=0, abstime=0x7f09e6ea65a0, expected=0, futex=0x556214cc3b98)
>    at ../nptl/sysdeps/unix/sysv/linux/sem_waitcommon.c:87
>        __to = 0x7f09e6ea64f0
>        _val = 0
>        tv = {tv_sec = 1527063739, tv_usec = 641747}
>        rt = {tv_sec = 10, tv_nsec = 0}
>        sec = <optimized out>
>        nsec = <optimized out>
>        err = <optimized out>
>        oldtype = 0
>        err = <optimized out>
>#1  0x00007f0a48778cc1 in do_futex_wait (sem=sem@entry=0x556214cc3b98, abstime=abstime@entry=0x7f09e6ea65a0) at ../nptl/sysdeps/unix/sysv/linux/sem_waitcommon.c:223
>        err = <optimized out>
>#2  0x00007f0a48778d87 in __new_sem_wait_slow (sem=0x556214cc3b98, abstime=0x7f09e6ea65a0) at ../nptl/sysdeps/unix/sysv/linux/sem_waitcommon.c:292
>        _buffer = {__routine = 0x7f0a48778c30 <__sem_wait_cleanup>, __arg = 0x556214cc3b98, __canceltype = 348928816, __prev = 0x0}
>        err = <optimized out>
>        d = 77309411328
>#3  0x00007f0a48778e25 in sem_timedwait (sem=sem@entry=0x556214cc3b98, abstime=abstime@entry=0x7f09e6ea65a0) at ../nptl/sysdeps/unix/sysv/linux/sem_timedwait.c:37
>#4  0x0000556212c79e67 in qemu_sem_timedwait (sem=sem@entry=0x556214cc3b98, ms=ms@entry=10000) at util/qemu-thread-posix.c:289
>        rc = <optimized out>
>        ts = {tv_sec = 1527063749, tv_nsec = 641747000}
>        __PRETTY_FUNCTION__ = "qemu_sem_timedwait"
>        __func__ = "qemu_sem_timedwait"
>#5  0x0000556212c7585c in worker_thread (opaque=0x556214cc3b20) at util/thread-pool.c:92
>        req = <optimized out>
>        ret = <optimized out>
>        pool = 0x556214cc3b20
>#6  0x00007f0a48772dd5 in start_thread (arg=0x7f09e6ea9700) at pthread_create.c:308
>        __res = <optimized out>
>        pd = 0x7f09e6ea9700
>        now = <optimized out>
>        unwind_buf = 
>              {cancel_jmp_buf = {{jmp_buf = {139680505566976, -7117437805452392306, 0, 8392704, 0, 139680505566976, 7145530159810152590, 7146465940587743374}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
>        not_first_call = <optimized out>
>        pagesize_m1 = <optimized out>
>        sp = <optimized out>
>        freesize = <optimized out>
>#7  0x00007f0a4849cb3d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113
>
>Thread 20 (Thread 0x7f09e96ae700 (LWP 12759)):
>#0  0x00007f0a48778cc1 in do_futex_wait (cancel=true, private=0, abstime=0x7f09e96ab5a0, expected=0, futex=0x556214cc3b98)
>    at ../nptl/sysdeps/unix/sysv/linux/sem_waitcommon.c:87
>        __to = 0x7f09e96ab4f0
>        _val = 0
>        tv = {tv_sec = 1527063739, tv_usec = 367350}
>        rt = {tv_sec = 10, tv_nsec = 0}
>        sec = <optimized out>
>        nsec = <optimized out>
>        err = <optimized out>
>        oldtype = 0
>        err = <optimized out>
>#1  0x00007f0a48778cc1 in do_futex_wait (sem=sem@entry=0x556214cc3b98, abstime=abstime@entry=0x7f09e96ab5a0) at ../nptl/sysdeps/unix/sysv/linux/sem_waitcommon.c:223
>        err = <optimized out>
>#2  0x00007f0a48778d87 in __new_sem_wait_slow (sem=0x556214cc3b98, abstime=0x7f09e96ab5a0) at ../nptl/sysdeps/unix/sysv/linux/sem_waitcommon.c:292
>        _buffer = {__routine = 0x7f0a48778c30 <__sem_wait_cleanup>, __arg = 0x556214cc3b98, __canceltype = 339226176, __prev = 0x0}
>        err = <optimized out>
>        d = 64424509440
>#3  0x00007f0a48778e25 in sem_timedwait (sem=sem@entry=0x556214cc3b98, abstime=abstime@entry=0x7f09e96ab5a0) at ../nptl/sysdeps/unix/sysv/linux/sem_timedwait.c:37
>#4  0x0000556212c79e67 in qemu_sem_timedwait (sem=sem@entry=0x556214cc3b98, ms=ms@entry=10000) at util/qemu-thread-posix.c:289
>        rc = <optimized out>
>        ts = {tv_sec = 1527063749, tv_nsec = 367350000}
>        __PRETTY_FUNCTION__ = "qemu_sem_timedwait"
>        __func__ = "qemu_sem_timedwait"
>#5  0x0000556212c7585c in worker_thread (opaque=0x556214cc3b20) at util/thread-pool.c:92
>        req = <optimized out>
>        ret = <optimized out>
>        pool = 0x556214cc3b20
>#6  0x00007f0a48772dd5 in start_thread (arg=0x7f09e96ae700) at pthread_create.c:308
>        __res = <optimized out>
>        pd = 0x7f09e96ae700
>        now = <optimized out>
>        unwind_buf = 
>              {cancel_jmp_buf = {{jmp_buf = {139680547530496, -7117437805452392306, 0, 8392704, 0, 139680547530496, 7145553256533657742, 7146465940587743374}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
>        not_first_call = <optimized out>
>        pagesize_m1 = <optimized out>
>        sp = <optimized out>
>        freesize = <optimized out>
>#7  0x00007f0a4849cb3d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113
>
>Thread 19 (Thread 0x7f09e66a8700 (LWP 12765)):
>#0  0x00007f0a48778cc1 in do_futex_wait (cancel=true, private=0, abstime=0x7f09e66a55a0, expected=0, futex=0x556214cc3b98)
>    at ../nptl/sysdeps/unix/sysv/linux/sem_waitcommon.c:87
>        __to = 0x7f09e66a54f0
>        _val = 0
>        tv = {tv_sec = 1527063739, tv_usec = 334868}
>        rt = {tv_sec = 10, tv_nsec = 0}
>        sec = <optimized out>
>        nsec = <optimized out>
>        err = <optimized out>
>        oldtype = 0
>        err = <optimized out>
>#1  0x00007f0a48778cc1 in do_futex_wait (sem=sem@entry=0x556214cc3b98, abstime=abstime@entry=0x7f09e66a55a0) at ../nptl/sysdeps/unix/sysv/linux/sem_waitcommon.c:223
>        err = <optimized out>
>#2  0x00007f0a48778d87 in __new_sem_wait_slow (sem=0x556214cc3b98, abstime=0x7f09e66a55a0) at ../nptl/sysdeps/unix/sysv/linux/sem_waitcommon.c:292
>        _buffer = {__routine = 0x7f0a48778c30 <__sem_wait_cleanup>, __arg = 0x556214cc3b98, __canceltype = 339241856, __prev = 0x0}
>        err = <optimized out>
>        d = 51539607552
>#3  0x00007f0a48778e25 in sem_timedwait (sem=sem@entry=0x556214cc3b98, abstime=abstime@entry=0x7f09e66a55a0) at ../nptl/sysdeps/unix/sysv/linux/sem_timedwait.c:37
>#4  0x0000556212c79e67 in qemu_sem_timedwait (sem=sem@entry=0x556214cc3b98, ms=ms@entry=10000) at util/qemu-thread-posix.c:289
>        rc = <optimized out>
>        ts = {tv_sec = 1527063749, tv_nsec = 334868000}
>        __PRETTY_FUNCTION__ = "qemu_sem_timedwait"
>        __func__ = "qemu_sem_timedwait"
>#5  0x0000556212c7585c in worker_thread (opaque=0x556214cc3b20) at util/thread-pool.c:92
>        req = <optimized out>
>        ret = <optimized out>
>        pool = 0x556214cc3b20
>#6  0x00007f0a48772dd5 in start_thread (arg=0x7f09e66a8700) at pthread_create.c:308
>        __res = <optimized out>
>        pd = 0x7f09e66a8700
>        now = <optimized out>
>        unwind_buf = 
>              {cancel_jmp_buf = {{jmp_buf = {139680497174272, -7117437805452392306, 0, 8392704, 0, 139680497174272, 7145529059761653902, 7146465940587743374}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
>        not_first_call = <optimized out>
>        pagesize_m1 = <optimized out>
>        sp = <optimized out>
>        freesize = <optimized out>
>#7  0x00007f0a4849cb3d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113
>
>Thread 18 (Thread 0x7f09ed8c6700 (LWP 12743)):
>#0  0x00007f0a48778cc1 in do_futex_wait (cancel=true, private=0, abstime=0x7f09ed8c35a0, expected=0, futex=0x556214cc3b98)
>    at ../nptl/sysdeps/unix/sysv/linux/sem_waitcommon.c:87
>        __to = 0x7f09ed8c34f0
>        _val = 0
>        tv = {tv_sec = 1527063739, tv_usec = 595732}
>        rt = {tv_sec = 10, tv_nsec = 0}
>        sec = <optimized out>
>        nsec = <optimized out>
>        err = <optimized out>
>        oldtype = 0
>        err = <optimized out>
>#1  0x00007f0a48778cc1 in do_futex_wait (sem=sem@entry=0x556214cc3b98, abstime=abstime@entry=0x7f09ed8c35a0) at ../nptl/sysdeps/unix/sysv/linux/sem_waitcommon.c:223
>        err = <optimized out>
>#2  0x00007f0a48778d87 in __new_sem_wait_slow (sem=0x556214cc3b98, abstime=0x7f09ed8c35a0) at ../nptl/sysdeps/unix/sysv/linux/sem_waitcommon.c:292
>        _buffer = {__routine = 0x7f0a48778c30 <__sem_wait_cleanup>, __arg = 0x556214cc3b98, __canceltype = 348928816, __prev = 0x0}
>        err = <optimized out>
>        d = 77309411328
>#3  0x00007f0a48778e25 in sem_timedwait (sem=sem@entry=0x556214cc3b98, abstime=abstime@entry=0x7f09ed8c35a0) at ../nptl/sysdeps/unix/sysv/linux/sem_timedwait.c:37
>#4  0x0000556212c79e67 in qemu_sem_timedwait (sem=sem@entry=0x556214cc3b98, ms=ms@entry=10000) at util/qemu-thread-posix.c:289
>        rc = <optimized out>
>        ts = {tv_sec = 1527063749, tv_nsec = 595732000}
>        __PRETTY_FUNCTION__ = "qemu_sem_timedwait"
>        __func__ = "qemu_sem_timedwait"
>#5  0x0000556212c7585c in worker_thread (opaque=0x556214cc3b20) at util/thread-pool.c:92
>        req = <optimized out>
>        ret = <optimized out>
>        pool = 0x556214cc3b20
>#6  0x00007f0a48772dd5 in start_thread (arg=0x7f09ed8c6700) at pthread_create.c:308
>        __res = <optimized out>
>        pd = 0x7f09ed8c6700
>        now = <optimized out>
>        unwind_buf = 
>              {cancel_jmp_buf = {{jmp_buf = {139680616834816, -7117437805452392306, 0, 8392704, 0, 139680616834816, 7145544782563182734, 7146465940587743374}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
>        not_first_call = <optimized out>
>        pagesize_m1 = <optimized out>
>        sp = <optimized out>
>        freesize = <optimized out>
>#7  0x00007f0a4849cb3d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113
>
>Thread 17 (Thread 0x7f09ec6c2700 (LWP 12746)):
>#0  0x00007f0a48778cc1 in do_futex_wait (cancel=true, private=0, abstime=0x7f09ec6bf5a0, expected=0, futex=0x556214cc3b98)
>    at ../nptl/sysdeps/unix/sysv/linux/sem_waitcommon.c:87
>        __to = 0x7f09ec6bf4f0
>        _val = 0
>        tv = {tv_sec = 1527063739, tv_usec = 335269}
>        rt = {tv_sec = 10, tv_nsec = 0}
>        sec = <optimized out>
>        nsec = <optimized out>
>        err = <optimized out>
>        oldtype = 0
>        err = <optimized out>
>#1  0x00007f0a48778cc1 in do_futex_wait (sem=sem@entry=0x556214cc3b98, abstime=abstime@entry=0x7f09ec6bf5a0) at ../nptl/sysdeps/unix/sysv/linux/sem_waitcommon.c:223
>        err = <optimized out>
>#2  0x00007f0a48778d87 in __new_sem_wait_slow (sem=0x556214cc3b98, abstime=0x7f09ec6bf5a0) at ../nptl/sysdeps/unix/sysv/linux/sem_waitcommon.c:292
>        _buffer = {__routine = 0x7f0a48778c30 <__sem_wait_cleanup>, __arg = 0x556214cc3b98, __canceltype = 348928816, __prev = 0x0}
>        err = <optimized out>
>        d = 51539607552
>#3  0x00007f0a48778e25 in sem_timedwait (sem=sem@entry=0x556214cc3b98, abstime=abstime@entry=0x7f09ec6bf5a0) at ../nptl/sysdeps/unix/sysv/linux/sem_timedwait.c:37
>#4  0x0000556212c79e67 in qemu_sem_timedwait (sem=sem@entry=0x556214cc3b98, ms=ms@entry=10000) at util/qemu-thread-posix.c:289
>        rc = <optimized out>
>        ts = {tv_sec = 1527063749, tv_nsec = 335269000}
>        __PRETTY_FUNCTION__ = "qemu_sem_timedwait"
>        __func__ = "qemu_sem_timedwait"
>#5  0x0000556212c7585c in worker_thread (opaque=0x556214cc3b20) at util/thread-pool.c:92
>        req = <optimized out>
>        ret = <optimized out>
>        pool = 0x556214cc3b20
>#6  0x00007f0a48772dd5 in start_thread (arg=0x7f09ec6c2700) at pthread_create.c:308
>        __res = <optimized out>
>        pd = 0x7f09ec6c2700
>        now = <optimized out>
>        unwind_buf = 
>              {cancel_jmp_buf = {{jmp_buf = {139680597944064, -7117437805452392306, 0, 8392704, 0, 139680597944064, 7145542250679961742, 7146465940587743374}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
>        not_first_call = <optimized out>
>        pagesize_m1 = <optimized out>
>        sp = <optimized out>
>        freesize = <optimized out>
>#7  0x00007f0a4849cb3d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113
>
>Thread 16 (Thread 0x7f09eaeb1700 (LWP 12756)):
>#0  0x00007f0a48778cc1 in do_futex_wait (cancel=true, private=0, abstime=0x7f09eaeae5a0, expected=0, futex=0x556214cc3b98)
>    at ../nptl/sysdeps/unix/sysv/linux/sem_waitcommon.c:87
>        __to = 0x7f09eaeae4f0
>        _val = 0
>        tv = {tv_sec = 1527063739, tv_usec = 386035}
>        rt = {tv_sec = 10, tv_nsec = 0}
>        sec = <optimized out>
>        nsec = <optimized out>
>        err = <optimized out>
>        oldtype = 0
>        err = <optimized out>
>#1  0x00007f0a48778cc1 in do_futex_wait (sem=sem@entry=0x556214cc3b98, abstime=abstime@entry=0x7f09eaeae5a0) at ../nptl/sysdeps/unix/sysv/linux/sem_waitcommon.c:223
>        err = <optimized out>
>#2  0x00007f0a48778d87 in __new_sem_wait_slow (sem=0x556214cc3b98, abstime=0x7f09eaeae5a0) at ../nptl/sysdeps/unix/sysv/linux/sem_waitcommon.c:292
>        _buffer = {__routine = 0x7f0a48778c30 <__sem_wait_cleanup>, __arg = 0x556214cc3b98, __canceltype = 339216768, __prev = 0x0}
>        err = <optimized out>
>        d = 77309411328
>#3  0x00007f0a48778e25 in sem_timedwait (sem=sem@entry=0x556214cc3b98, abstime=abstime@entry=0x7f09eaeae5a0) at ../nptl/sysdeps/unix/sysv/linux/sem_timedwait.c:37
>#4  0x0000556212c79e67 in qemu_sem_timedwait (sem=sem@entry=0x556214cc3b98, ms=ms@entry=10000) at util/qemu-thread-posix.c:289
>        rc = <optimized out>
>        ts = {tv_sec = 1527063749, tv_nsec = 386035000}
>        __PRETTY_FUNCTION__ = "qemu_sem_timedwait"
>        __func__ = "qemu_sem_timedwait"
>#5  0x0000556212c7585c in worker_thread (opaque=0x556214cc3b20) at util/thread-pool.c:92
>        req = <optimized out>
>        ret = <optimized out>
>        pool = 0x556214cc3b20
>#6  0x00007f0a48772dd5 in start_thread (arg=0x7f09eaeb1700) at pthread_create.c:308
>        __res = <optimized out>
>        pd = 0x7f09eaeb1700
>        now = <optimized out>
>        unwind_buf = 
>              {cancel_jmp_buf = {{jmp_buf = {139680572708608, -7117437805452392306, 0, 8392704, 0, 139680572708608, 7145556552384186510, 7146465940587743374}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
>        not_first_call = <optimized out>
>        pagesize_m1 = <optimized out>
>        sp = <optimized out>
>        freesize = <optimized out>
>#7  0x00007f0a4849cb3d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113
>
>Thread 15 (Thread 0x7f09e7eab700 (LWP 12762)):
>#0  0x00007f0a48778cc1 in do_futex_wait (cancel=true, private=0, abstime=0x7f09e7ea85a0, expected=0, futex=0x556214cc3b98)
>    at ../nptl/sysdeps/unix/sysv/linux/sem_waitcommon.c:87
>        __to = 0x7f09e7ea84f0
>        _val = 0
>        tv = {tv_sec = 1527063739, tv_usec = 595656}
>        rt = {tv_sec = 9, tv_nsec = 999999000}
>        sec = <optimized out>
>        nsec = <optimized out>
>        err = <optimized out>
>        oldtype = 0
>        err = <optimized out>
>#1  0x00007f0a48778cc1 in do_futex_wait (sem=sem@entry=0x556214cc3b98, abstime=abstime@entry=0x7f09e7ea85a0) at ../nptl/sysdeps/unix/sysv/linux/sem_waitcommon.c:223
>        err = <optimized out>
>#2  0x00007f0a48778d87 in __new_sem_wait_slow (sem=0x556214cc3b98, abstime=0x7f09e7ea85a0) at ../nptl/sysdeps/unix/sysv/linux/sem_waitcommon.c:292
>        _buffer = {__routine = 0x7f0a48778c30 <__sem_wait_cleanup>, __arg = 0x556214cc3b98, __canceltype = 339235584, __prev = 0x0}
>        err = <optimized out>
>        d = 77309411328
>#3  0x00007f0a48778e25 in sem_timedwait (sem=sem@entry=0x556214cc3b98, abstime=abstime@entry=0x7f09e7ea85a0) at ../nptl/sysdeps/unix/sysv/linux/sem_timedwait.c:37
>#4  0x0000556212c79e67 in qemu_sem_timedwait (sem=sem@entry=0x556214cc3b98, ms=ms@entry=10000) at util/qemu-thread-posix.c:289
>        rc = <optimized out>
>        ts = {tv_sec = 1527063749, tv_nsec = 595655000}
>        __PRETTY_FUNCTION__ = "qemu_sem_timedwait"
>        __func__ = "qemu_sem_timedwait"
>#5  0x0000556212c7585c in worker_thread (opaque=0x556214cc3b20) at util/thread-pool.c:92
>        req = <optimized out>
>        ret = <optimized out>
>        pool = 0x556214cc3b20
>#6  0x00007f0a48772dd5 in start_thread (arg=0x7f09e7eab700) at pthread_create.c:308
>        __res = <optimized out>
>        pd = 0x7f09e7eab700
>        now = <optimized out>
>        unwind_buf = 
>              {cancel_jmp_buf = {{jmp_buf = {139680522352384, -7117437805452392306, 0, 8392704, 0, 139680522352384, 7145532364202117262, 7146465940587743374}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
>        not_first_call = <optimized out>
>        pagesize_m1 = <optimized out>
>        sp = <optimized out>
>        freesize = <optimized out>
>#7  0x00007f0a4849cb3d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113
>
>Thread 14 (Thread 0x7f0a36c3a700 (LWP 12728)):
>#0  0x00007f0a487794cd in __lll_lock_wait () at ../nptl/sysdeps/unix/sysv/linux/x86_64/lowlevellock.S:135
>#1  0x00007f0a4877bd8c in _L_cond_lock_789 () at /usr/lib64/libpthread-2.17.so
>#2  0x00007f0a4877bc21 in __pthread_mutex_cond_lock (mutex=0x55621323fba0 <qemu_global_mutex>) at ../nptl/pthread_mutex_lock.c:79
>        type = 0
>        id = <optimized out>
>#3  0x00007f0a487769d5 in pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:259
>#4  0x0000556212c79ca0 in qemu_cond_wait (cond=<optimized out>, mutex=mutex@entry=0x55621323fba0 <qemu_global_mutex>) at util/qemu-thread-posix.c:161
>        err = <optimized out>
>        __PRETTY_FUNCTION__ = "qemu_cond_wait"
>        __func__ = "qemu_cond_wait"
>#5  0x0000556212990adb in qemu_kvm_cpu_thread_fn (cpu=<optimized out>) at /usr/src/debug/qemu-2.10.0/cpus.c:1105
>        cpu = 0x556215086000
>        r = <optimized out>
>#6  0x0000556212990adb in qemu_kvm_cpu_thread_fn (arg=0x556215086000) at /usr/src/debug/qemu-2.10.0/cpus.c:1143
>        cpu = 0x556215086000
>        r = <optimized out>
>#7  0x00007f0a48772dd5 in start_thread (arg=0x7f0a36c3a700) at pthread_create.c:308
>        __res = <optimized out>
>        pd = 0x7f0a36c3a700
>        now = <optimized out>
>        unwind_buf = 
>              {cancel_jmp_buf = {{jmp_buf = {139681845192448, -7117437805452392306, 0, 8392704, 0, 139681845192448, 7146550154950281358, 7146465940587743374}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
>        not_first_call = <optimized out>
>        pagesize_m1 = <optimized out>
>        sp = <optimized out>
>        freesize = <optimized out>
>#8  0x00007f0a4849cb3d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113
>
>Thread 13 (Thread 0x7f0a38253700 (LWP 12724)):
>#0  0x00007f0a48496e59 in syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
>#1  0x0000556212c7a0d0 in qemu_event_wait (val=<optimized out>, f=<optimized out>) at /usr/src/debug/qemu-2.10.0/include/qemu/futex.h:26
>        value = <optimized out>
>        __PRETTY_FUNCTION__ = "qemu_event_wait"
>#2  0x0000556212c7a0d0 in qemu_event_wait (ev=ev@entry=0x556213685328 <rcu_call_ready_event>) at util/qemu-thread-posix.c:442
>        value = <optimized out>
>        __PRETTY_FUNCTION__ = "qemu_event_wait"
>#3  0x0000556212c89fce in call_rcu_thread (opaque=<optimized out>) at util/rcu.c:249
>        tries = 0
>        n = <optimized out>
>        node = <optimized out>
>#4  0x00007f0a48772dd5 in start_thread (arg=0x7f0a38253700) at pthread_create.c:308
>        __res = <optimized out>
>        pd = 0x7f0a38253700
>        now = <optimized out>
>        unwind_buf = 
>              {cancel_jmp_buf = {{jmp_buf = {139681868363520, -7117437805452392306, 0, 8392704, 0, 139681868363520, 7146570822869780622, 7146465940587743374}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
>        not_first_call = <optimized out>
>        pagesize_m1 = <optimized out>
>        sp = <optimized out>
>        freesize = <optimized out>
>#5  0x00007f0a4849cb3d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113
>
>Thread 12 (Thread 0x7f09ecfc4700 (LWP 12745)):
>#0  0x00007f0a48778cc1 in do_futex_wait (cancel=true, private=0, abstime=0x7f09ecfc15a0, expected=0, futex=0x556214cc3b98)
>    at ../nptl/sysdeps/unix/sysv/linux/sem_waitcommon.c:87
>        __to = 0x7f09ecfc14f0
>        _val = 0
>        tv = {tv_sec = 1527063739, tv_usec = 366951}
>        rt = {tv_sec = 10, tv_nsec = 0}
>        sec = <optimized out>
>        nsec = <optimized out>
>        err = <optimized out>
>        oldtype = 0
>        err = <optimized out>
>#1  0x00007f0a48778cc1 in do_futex_wait (sem=sem@entry=0x556214cc3b98, abstime=abstime@entry=0x7f09ecfc15a0) at ../nptl/sysdeps/unix/sysv/linux/sem_waitcommon.c:223
>        err = <optimized out>
>#2  0x00007f0a48778d87 in __new_sem_wait_slow (sem=0x556214cc3b98, abstime=0x7f09ecfc15a0) at ../nptl/sysdeps/unix/sysv/linux/sem_waitcommon.c:292
>        _buffer = {__routine = 0x7f0a48778c30 <__sem_wait_cleanup>, __arg = 0x556214cc3b98, __canceltype = 348928816, __prev = 0x0}
>        err = <optimized out>
>        d = 64424509440
>#3  0x00007f0a48778e25 in sem_timedwait (sem=sem@entry=0x556214cc3b98, abstime=abstime@entry=0x7f09ecfc15a0) at ../nptl/sysdeps/unix/sysv/linux/sem_timedwait.c:37
>#4  0x0000556212c79e67 in qemu_sem_timedwait (sem=sem@entry=0x556214cc3b98, ms=ms@entry=10000) at util/qemu-thread-posix.c:289
>        rc = <optimized out>
>        ts = {tv_sec = 1527063749, tv_nsec = 366951000}
>        __PRETTY_FUNCTION__ = "qemu_sem_timedwait"
>        __func__ = "qemu_sem_timedwait"
>#5  0x0000556212c7585c in worker_thread (opaque=0x556214cc3b20) at util/thread-pool.c:92
>        req = <optimized out>
>        ret = <optimized out>
>        pool = 0x556214cc3b20
>#6  0x00007f0a48772dd5 in start_thread (arg=0x7f09ecfc4700) at pthread_create.c:308
>        __res = <optimized out>
>        pd = 0x7f09ecfc4700
>        now = <optimized out>
>        unwind_buf = 
>              {cancel_jmp_buf = {{jmp_buf = {139680607389440, -7117437805452392306, 0, 8392704, 0, 139680607389440, 7145543544538859662, 7146465940587743374}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
>        not_first_call = <optimized out>
>        pagesize_m1 = <optimized out>
>        sp = <optimized out>
>        freesize = <optimized out>
>#7  0x00007f0a4849cb3d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113
>
>Thread 11 (Thread 0x7f09e8ead700 (LWP 12760)):
>#0  0x00007f0a48778cc1 in do_futex_wait (cancel=true, private=0, abstime=0x7f09e8eaa5a0, expected=0, futex=0x556214cc3b98)
>    at ../nptl/sysdeps/unix/sysv/linux/sem_waitcommon.c:87
>        __to = 0x7f09e8eaa4f0
>        _val = 0
>        tv = {tv_sec = 1527063739, tv_usec = 383267}
>        rt = {tv_sec = 10, tv_nsec = 0}
>        sec = <optimized out>
>        nsec = <optimized out>
>        err = <optimized out>
>        oldtype = 0
>        err = <optimized out>
>#1  0x00007f0a48778cc1 in do_futex_wait (sem=sem@entry=0x556214cc3b98, abstime=abstime@entry=0x7f09e8eaa5a0) at ../nptl/sysdeps/unix/sysv/linux/sem_waitcommon.c:223
>        err = <optimized out>
>#2  0x00007f0a48778d87 in __new_sem_wait_slow (sem=0x556214cc3b98, abstime=0x7f09e8eaa5a0) at ../nptl/sysdeps/unix/sysv/linux/sem_waitcommon.c:292
>        _buffer = {__routine = 0x7f0a48778c30 <__sem_wait_cleanup>, __arg = 0x556214cc3b98, __canceltype = 348928816, __prev = 0x0}
>        err = <optimized out>
>        d = 73014444032
>#3  0x00007f0a48778e25 in sem_timedwait (sem=sem@entry=0x556214cc3b98, abstime=abstime@entry=0x7f09e8eaa5a0) at ../nptl/sysdeps/unix/sysv/linux/sem_timedwait.c:37
>#4  0x0000556212c79e67 in qemu_sem_timedwait (sem=sem@entry=0x556214cc3b98, ms=ms@entry=10000) at util/qemu-thread-posix.c:289
>        rc = <optimized out>
>        ts = {tv_sec = 1527063749, tv_nsec = 383267000}
>        __PRETTY_FUNCTION__ = "qemu_sem_timedwait"
>        __func__ = "qemu_sem_timedwait"
>#5  0x0000556212c7585c in worker_thread (opaque=0x556214cc3b20) at util/thread-pool.c:92
>        req = <optimized out>
>        ret = <optimized out>
>        pool = 0x556214cc3b20
>#6  0x00007f0a48772dd5 in start_thread (arg=0x7f09e8ead700) at pthread_create.c:308
>        __res = <optimized out>
>        pd = 0x7f09e8ead700
>        now = <optimized out>
>        unwind_buf = 
>              {cancel_jmp_buf = {{jmp_buf = {139680539137792, -7117437805452392306, 0, 8392704, 0, 139680539137792, 7145552156485159054, 7146465940587743374}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
>        not_first_call = <optimized out>
>        pagesize_m1 = <optimized out>
>        sp = <optimized out>
>        freesize = <optimized out>
>#7  0x00007f0a4849cb3d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113
>
>Thread 10 (Thread 0x7f09e86ac700 (LWP 12761)):
>#0  0x00007f0a48778cc1 in do_futex_wait (cancel=true, private=0, abstime=0x7f09e86a95a0, expected=0, futex=0x556214cc3b98)
>    at ../nptl/sysdeps/unix/sysv/linux/sem_waitcommon.c:87
>        __to = 0x7f09e86a94f0
>        _val = 0
>        tv = {tv_sec = 1527063739, tv_usec = 595776}
>        rt = {tv_sec = 9, tv_nsec = 999999000}
>        sec = <optimized out>
>        nsec = <optimized out>
>        err = <optimized out>
>        oldtype = 0
>        err = <optimized out>
>#1  0x00007f0a48778cc1 in do_futex_wait (sem=sem@entry=0x556214cc3b98, abstime=abstime@entry=0x7f09e86a95a0) at ../nptl/sysdeps/unix/sysv/linux/sem_waitcommon.c:223
>        err = <optimized out>
>#2  0x00007f0a48778d87 in __new_sem_wait_slow (sem=0x556214cc3b98, abstime=0x7f09e86a95a0) at ../nptl/sysdeps/unix/sysv/linux/sem_waitcommon.c:292
>        _buffer = {__routine = 0x7f0a48778c30 <__sem_wait_cleanup>, __arg = 0x556214cc3b98, __canceltype = 339232448, __prev = 0x0}
>        err = <optimized out>
>        d = 77309411328
>#3  0x00007f0a48778e25 in sem_timedwait (sem=sem@entry=0x556214cc3b98, abstime=abstime@entry=0x7f09e86a95a0) at ../nptl/sysdeps/unix/sysv/linux/sem_timedwait.c:37
>#4  0x0000556212c79e67 in qemu_sem_timedwait (sem=sem@entry=0x556214cc3b98, ms=ms@entry=10000) at util/qemu-thread-posix.c:289
>        rc = <optimized out>
>        ts = {tv_sec = 1527063749, tv_nsec = 595775000}
>        __PRETTY_FUNCTION__ = "qemu_sem_timedwait"
>        __func__ = "qemu_sem_timedwait"
>#5  0x0000556212c7585c in worker_thread (opaque=0x556214cc3b20) at util/thread-pool.c:92
>        req = <optimized out>
>        ret = <optimized out>
>        pool = 0x556214cc3b20
>#6  0x00007f0a48772dd5 in start_thread (arg=0x7f09e86ac700) at pthread_create.c:308
>        __res = <optimized out>
>        pd = 0x7f09e86ac700
>        now = <optimized out>
>        unwind_buf = 
>              {cancel_jmp_buf = {{jmp_buf = {139680530745088, -7117437805452392306, 0, 8392704, 0, 139680530745088, 7145551056436660366, 7146465940587743374}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
>        not_first_call = <optimized out>
>        pagesize_m1 = <optimized out>
>        sp = <optimized out>
>        freesize = <optimized out>
>#7  0x00007f0a4849cb3d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113
>
>Thread 9 (Thread 0x7f09ea6b0700 (LWP 12757)):
>#0  0x00007f0a48778cc1 in do_futex_wait (cancel=true, private=0, abstime=0x7f09ea6ad5a0, expected=0, futex=0x556214cc3b98)
>    at ../nptl/sysdeps/unix/sysv/linux/sem_waitcommon.c:87
>        __to = 0x7f09ea6ad4f0
>        _val = 0
>        tv = {tv_sec = 1527063739, tv_usec = 385921}
>        rt = {tv_sec = 9, tv_nsec = 999999000}
>        sec = <optimized out>
>        nsec = <optimized out>
>        err = <optimized out>
>        oldtype = 0
>        err = <optimized out>
>#1  0x00007f0a48778cc1 in do_futex_wait (sem=sem@entry=0x556214cc3b98, abstime=abstime@entry=0x7f09ea6ad5a0) at ../nptl/sysdeps/unix/sysv/linux/sem_waitcommon.c:223
>        err = <optimized out>
>#2  0x00007f0a48778d87 in __new_sem_wait_slow (sem=0x556214cc3b98, abstime=0x7f09ea6ad5a0) at ../nptl/sysdeps/unix/sysv/linux/sem_waitcommon.c:292
>        _buffer = {__routine = 0x7f0a48778c30 <__sem_wait_cleanup>, __arg = 0x556214cc3b98, __canceltype = 339219904, __prev = 0x0}
>        err = <optimized out>
>        d = 77309411328
>#3  0x00007f0a48778e25 in sem_timedwait (sem=sem@entry=0x556214cc3b98, abstime=abstime@entry=0x7f09ea6ad5a0) at ../nptl/sysdeps/unix/sysv/linux/sem_timedwait.c:37
>#4  0x0000556212c79e67 in qemu_sem_timedwait (sem=sem@entry=0x556214cc3b98, ms=ms@entry=10000) at util/qemu-thread-posix.c:289
>        rc = <optimized out>
>        ts = {tv_sec = 1527063749, tv_nsec = 385920000}
>        __PRETTY_FUNCTION__ = "qemu_sem_timedwait"
>        __func__ = "qemu_sem_timedwait"
>#5  0x0000556212c7585c in worker_thread (opaque=0x556214cc3b20) at util/thread-pool.c:92
>        req = <optimized out>
>        ret = <optimized out>
>        pool = 0x556214cc3b20
>#6  0x00007f0a48772dd5 in start_thread (arg=0x7f09ea6b0700) at pthread_create.c:308
>        __res = <optimized out>
>        pd = 0x7f09ea6b0700
>        now = <optimized out>
>        unwind_buf = 
>              {cancel_jmp_buf = {{jmp_buf = {139680564315904, -7117437805452392306, 0, 8392704, 0, 139680564315904, 7145555452335687822, 7146465940587743374}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
>        not_first_call = <optimized out>
>        pagesize_m1 = <optimized out>
>        sp = <optimized out>
>        freesize = <optimized out>
>#7  0x00007f0a4849cb3d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113
>
>Thread 8 (Thread 0x7f09e76aa700 (LWP 12763)):
>#0  0x00007f0a48778cc1 in do_futex_wait (cancel=true, private=0, abstime=0x7f09e76a75a0, expected=0, futex=0x556214cc3b98)
>    at ../nptl/sysdeps/unix/sysv/linux/sem_waitcommon.c:87
>        __to = 0x7f09e76a74f0
>        _val = 0
>        tv = {tv_sec = 1527063739, tv_usec = 343479}
>        rt = {tv_sec = 10, tv_nsec = 0}
>        sec = <optimized out>
>        nsec = <optimized out>
>        err = <optimized out>
>        oldtype = 0
>        err = <optimized out>
>#1  0x00007f0a48778cc1 in do_futex_wait (sem=sem@entry=0x556214cc3b98, abstime=abstime@entry=0x7f09e76a75a0) at ../nptl/sysdeps/unix/sysv/linux/sem_waitcommon.c:223
>        err = <optimized out>
>#2  0x00007f0a48778d87 in __new_sem_wait_slow (sem=0x556214cc3b98, abstime=0x7f09e76a75a0) at ../nptl/sysdeps/unix/sysv/linux/sem_waitcommon.c:292
>        _buffer = {__routine = 0x7f0a48778c30 <__sem_wait_cleanup>, __arg = 0x556214cc3b98, __canceltype = 339238720, __prev = 0x0}
>        err = <optimized out>
>        d = 55834574848
>#3  0x00007f0a48778e25 in sem_timedwait (sem=sem@entry=0x556214cc3b98, abstime=abstime@entry=0x7f09e76a75a0) at ../nptl/sysdeps/unix/sysv/linux/sem_timedwait.c:37
>#4  0x0000556212c79e67 in qemu_sem_timedwait (sem=sem@entry=0x556214cc3b98, ms=ms@entry=10000) at util/qemu-thread-posix.c:289
>        rc = <optimized out>
>        ts = {tv_sec = 1527063749, tv_nsec = 343479000}
>        __PRETTY_FUNCTION__ = "qemu_sem_timedwait"
>        __func__ = "qemu_sem_timedwait"
>#5  0x0000556212c7585c in worker_thread (opaque=0x556214cc3b20) at util/thread-pool.c:92
>        req = <optimized out>
>        ret = <optimized out>
>        pool = 0x556214cc3b20
>#6  0x00007f0a48772dd5 in start_thread (arg=0x7f09e76aa700) at pthread_create.c:308
>        __res = <optimized out>
>        pd = 0x7f09e76aa700
>        now = <optimized out>
>        unwind_buf = 
>              {cancel_jmp_buf = {{jmp_buf = {139680513959680, -7117437805452392306, 0, 8392704, 0, 139680513959680, 7145531259858651278, 7146465940587743374}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
>        not_first_call = <optimized out>
>        pagesize_m1 = <optimized out>
>        sp = <optimized out>
>        freesize = <optimized out>
>#7  0x00007f0a4849cb3d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113
>
>Thread 7 (Thread 0x7f09e4ea5700 (LWP 12768)):
>#0  0x00007f0a48778cc1 in do_futex_wait (cancel=true, private=0, abstime=0x7f09e4ea25a0, expected=0, futex=0x556214cc3b98)
>    at ../nptl/sysdeps/unix/sysv/linux/sem_waitcommon.c:87
>        __to = 0x7f09e4ea24f0
>        _val = 0
>        tv = {tv_sec = 1527063739, tv_usec = 386201}
>        rt = {tv_sec = 10, tv_nsec = 0}
>        sec = <optimized out>
>        nsec = <optimized out>
>        err = <optimized out>
>        oldtype = 0
>        err = <optimized out>
>#1  0x00007f0a48778cc1 in do_futex_wait (sem=sem@entry=0x556214cc3b98, abstime=abstime@entry=0x7f09e4ea25a0) at ../nptl/sysdeps/unix/sysv/linux/sem_waitcommon.c:223
>        err = <optimized out>
>#2  0x00007f0a48778d87 in __new_sem_wait_slow (sem=0x556214cc3b98, abstime=0x7f09e4ea25a0) at ../nptl/sysdeps/unix/sysv/linux/sem_waitcommon.c:292
>        _buffer = {__routine = 0x7f0a48778c30 <__sem_wait_cleanup>, __arg = 0x556214cc3b98, __canceltype = 348928816, __prev = 0x0}
>        err = <optimized out>
>        d = 77309411328
>#3  0x00007f0a48778e25 in sem_timedwait (sem=sem@entry=0x556214cc3b98, abstime=abstime@entry=0x7f09e4ea25a0) at ../nptl/sysdeps/unix/sysv/linux/sem_timedwait.c:37
>#4  0x0000556212c79e67 in qemu_sem_timedwait (sem=sem@entry=0x556214cc3b98, ms=ms@entry=10000) at util/qemu-thread-posix.c:289
>        rc = <optimized out>
>        ts = {tv_sec = 1527063749, tv_nsec = 386201000}
>        __PRETTY_FUNCTION__ = "qemu_sem_timedwait"
>        __func__ = "qemu_sem_timedwait"
>#5  0x0000556212c7585c in worker_thread (opaque=0x556214cc3b20) at util/thread-pool.c:92
>        req = <optimized out>
>        ret = <optimized out>
>        pool = 0x556214cc3b20
>#6  0x00007f0a48772dd5 in start_thread (arg=0x7f09e4ea5700) at pthread_create.c:308
>        __res = <optimized out>
>        pd = 0x7f09e4ea5700
>        now = <optimized out>
>        unwind_buf = 
>              {cancel_jmp_buf = {{jmp_buf = {139680471996160, -7117437805452392306, 0, 8392704, 0, 139680471996160, 7145525763911125134, 7146465940587743374}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
>        not_first_call = <optimized out>
>        pagesize_m1 = <optimized out>
>        sp = <optimized out>
>        freesize = <optimized out>
>#7  0x00007f0a4849cb3d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113
>
>Thread 6 (Thread 0x7f09e5ea7700 (LWP 12766)):
>#0  0x00007f0a48778cc1 in do_futex_wait (cancel=true, private=0, abstime=0x7f09e5ea45a0, expected=0, futex=0x556214cc3b98)
>    at ../nptl/sysdeps/unix/sysv/linux/sem_waitcommon.c:87
>        __to = 0x7f09e5ea44f0
>        _val = 0
>        tv = {tv_sec = 1527063739, tv_usec = 375337}
>        rt = {tv_sec = 10, tv_nsec = 0}
>        sec = <optimized out>
>        nsec = <optimized out>
>        err = <optimized out>
>        oldtype = 0
>        err = <optimized out>
>#1  0x00007f0a48778cc1 in do_futex_wait (sem=sem@entry=0x556214cc3b98, abstime=abstime@entry=0x7f09e5ea45a0) at ../nptl/sysdeps/unix/sysv/linux/sem_waitcommon.c:223
>        err = <optimized out>
>#2  0x00007f0a48778d87 in __new_sem_wait_slow (sem=0x556214cc3b98, abstime=0x7f09e5ea45a0) at ../nptl/sysdeps/unix/sysv/linux/sem_waitcommon.c:292
>        _buffer = {__routine = 0x7f0a48778c30 <__sem_wait_cleanup>, __arg = 0x556214cc3b98, __canceltype = 339244992, __prev = 0x0}
>        err = <optimized out>
>        d = 68719476736
>#3  0x00007f0a48778e25 in sem_timedwait (sem=sem@entry=0x556214cc3b98, abstime=abstime@entry=0x7f09e5ea45a0) at ../nptl/sysdeps/unix/sysv/linux/sem_timedwait.c:37
>#4  0x0000556212c79e67 in qemu_sem_timedwait (sem=sem@entry=0x556214cc3b98, ms=ms@entry=10000) at util/qemu-thread-posix.c:289
>        rc = <optimized out>
>        ts = {tv_sec = 1527063749, tv_nsec = 375337000}
>        __PRETTY_FUNCTION__ = "qemu_sem_timedwait"
>        __func__ = "qemu_sem_timedwait"
>#5  0x0000556212c7585c in worker_thread (opaque=0x556214cc3b20) at util/thread-pool.c:92
>        req = <optimized out>
>        ret = <optimized out>
>        pool = 0x556214cc3b20
>#6  0x00007f0a48772dd5 in start_thread (arg=0x7f09e5ea7700) at pthread_create.c:308
>        __res = <optimized out>
>        pd = 0x7f09e5ea7700
>        now = <optimized out>
>        unwind_buf = 
>              {cancel_jmp_buf = {{jmp_buf = {139680488781568, -7117437805452392306, 0, 8392704, 0, 139680488781568, 7145527959713155214, 7146465940587743374}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
>        not_first_call = <optimized out>
>        pagesize_m1 = <optimized out>
>        sp = <optimized out>
>        freesize = <optimized out>
>#7  0x00007f0a4849cb3d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113
>
>Thread 5 (Thread 0x7f09eeaca700 (LWP 12740)):
>#0  0x00007f0a48778cc1 in do_futex_wait (cancel=true, private=0, abstime=0x7f09eeac75a0, expected=0, futex=0x556214cc3b98)
>    at ../nptl/sysdeps/unix/sysv/linux/sem_waitcommon.c:87
>        __to = 0x7f09eeac74f0
>        _val = 0
>        tv = {tv_sec = 1527063739, tv_usec = 351752}
>        rt = {tv_sec = 10, tv_nsec = 0}
>        sec = <optimized out>
>        nsec = <optimized out>
>        err = <optimized out>
>        oldtype = 0
>        err = <optimized out>
>#1  0x00007f0a48778cc1 in do_futex_wait (sem=sem@entry=0x556214cc3b98, abstime=abstime@entry=0x7f09eeac75a0) at ../nptl/sysdeps/unix/sysv/linux/sem_waitcommon.c:223
>        err = <optimized out>
>#2  0x00007f0a48778d87 in __new_sem_wait_slow (sem=0x556214cc3b98, abstime=0x7f09eeac75a0) at ../nptl/sysdeps/unix/sysv/linux/sem_waitcommon.c:292
>        _buffer = {__routine = 0x7f0a48778c30 <__sem_wait_cleanup>, __arg = 0x556214cc3b98, __canceltype = 348928816, __prev = 0x0}
>        err = <optimized out>
>        d = 60129542144
>#3  0x00007f0a48778e25 in sem_timedwait (sem=sem@entry=0x556214cc3b98, abstime=abstime@entry=0x7f09eeac75a0) at ../nptl/sysdeps/unix/sysv/linux/sem_timedwait.c:37
>#4  0x0000556212c79e67 in qemu_sem_timedwait (sem=sem@entry=0x556214cc3b98, ms=ms@entry=10000) at util/qemu-thread-posix.c:289
>        rc = <optimized out>
>        ts = {tv_sec = 1527063749, tv_nsec = 351752000}
>        __PRETTY_FUNCTION__ = "qemu_sem_timedwait"
>        __func__ = "qemu_sem_timedwait"
>#5  0x0000556212c7585c in worker_thread (opaque=0x556214cc3b20) at util/thread-pool.c:92
>        req = <optimized out>
>        ret = <optimized out>
>        pool = 0x556214cc3b20
>#6  0x00007f0a48772dd5 in start_thread (arg=0x7f09eeaca700) at pthread_create.c:308
>        __res = <optimized out>
>        pd = 0x7f09eeaca700
>        now = <optimized out>
>        unwind_buf = 
>              {cancel_jmp_buf = {{jmp_buf = {139680635725568, -7117437805452392306, 0, 8392704, 0, 139680635725568, 7145547254316861582, 7146465940587743374}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
>        not_first_call = <optimized out>
>        pagesize_m1 = <optimized out>
>        sp = <optimized out>
>        freesize = <optimized out>
>#7  0x00007f0a4849cb3d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113
>
>Thread 4 (Thread 0x7f0a3783f700 (LWP 12726)):
>#0  0x00007f0a48778cc1 in do_futex_wait (cancel=true, private=0, abstime=0x7f0a3783c5a0, expected=0, futex=0x556214cc3b98)
>    at ../nptl/sysdeps/unix/sysv/linux/sem_waitcommon.c:87
>        __to = 0x7f0a3783c4f0
>        _val = 0
>        tv = {tv_sec = 1527063739, tv_usec = 383650}
>        rt = {tv_sec = 9, tv_nsec = 999999000}
>        sec = <optimized out>
>        nsec = <optimized out>
>        err = <optimized out>
>        oldtype = 0
>        err = <optimized out>
>#1  0x00007f0a48778cc1 in do_futex_wait (sem=sem@entry=0x556214cc3b98, abstime=abstime@entry=0x7f0a3783c5a0) at ../nptl/sysdeps/unix/sysv/linux/sem_waitcommon.c:223
>        err = <optimized out>
>#2  0x00007f0a48778d87 in __new_sem_wait_slow (sem=0x556214cc3b98, abstime=0x7f0a3783c5a0) at ../nptl/sysdeps/unix/sysv/linux/sem_waitcommon.c:292
>        _buffer = {__routine = 0x7f0a48778c30 <__sem_wait_cleanup>, __arg = 0x556214cc3b98, __canceltype = 348928816, __prev = 0x0}
>        err = <optimized out>
>        d = 73014444032
>#3  0x00007f0a48778e25 in sem_timedwait (sem=sem@entry=0x556214cc3b98, abstime=abstime@entry=0x7f0a3783c5a0) at ../nptl/sysdeps/unix/sysv/linux/sem_timedwait.c:37
>#4  0x0000556212c79e67 in qemu_sem_timedwait (sem=sem@entry=0x556214cc3b98, ms=ms@entry=10000) at util/qemu-thread-posix.c:289
>        rc = <optimized out>
>        ts = {tv_sec = 1527063749, tv_nsec = 383649000}
>        __PRETTY_FUNCTION__ = "qemu_sem_timedwait"
>        __func__ = "qemu_sem_timedwait"
>#5  0x0000556212c7585c in worker_thread (opaque=0x556214cc3b20) at util/thread-pool.c:92
>        req = <optimized out>
>        ret = <optimized out>
>        pool = 0x556214cc3b20
>#6  0x00007f0a48772dd5 in start_thread (arg=0x7f0a3783f700) at pthread_create.c:308
>        __res = <optimized out>
>        pd = 0x7f0a3783f700
>        now = <optimized out>
>        unwind_buf = 
>              {cancel_jmp_buf = {{jmp_buf = {139681857795840, -7117437805452392306, 0, 8392704, 0, 139681857795840, 7146551806902077582, 7146465940587743374}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
>        not_first_call = <optimized out>
>        pagesize_m1 = <optimized out>
>        sp = <optimized out>
>        freesize = <optimized out>
>#7  0x00007f0a4849cb3d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113
>
>Thread 3 (Thread 0x7f09f41ff700 (LWP 12731)):
>#0  0x00007f0a48776945 in pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
>#1  0x0000556212c79ca0 in qemu_cond_wait (cond=cond@entry=0x556214cd43f0, mutex=mutex@entry=0x556214cd4428) at util/qemu-thread-posix.c:161
>        err = <optimized out>
>        __PRETTY_FUNCTION__ = "qemu_cond_wait"
>        __func__ = "qemu_cond_wait"
>#2  0x0000556212bab10b in vnc_worker_thread_loop (queue=queue@entry=0x556214cd43f0) at ui/vnc-jobs.c:210
>        job = <optimized out>
>        entry = <optimized out>
>        tmp = <optimized out>
>        vs = 
>            {sioc = 0x0, ioc = 0x0, ioc_tag = 0, disconnecting = 0, dirty = {{0, 0, 0} <repeats 2048 times>}, lossy_rect = 0x0, vd = 0x0, update = VNC_STATE_UPDATE_NONE, job_update = VNC_STATE_UPDATE_NONE, has_dirty = 0, features = 0, absolute = 0, last_x = 0, last_y = 0, last_bmask = 0, client_width = 0, client_height = 0, share_mode = 0, vnc_encoding = 0, major = 0, minor = 0, auth = 0, subauth = 0, challenge = '\000' <repeats 15 times>, tls = 0x0, sasl = {conn = 0x0, wantSSF = false, runSSF = false, waitWriteSSF = 0, encoded = 0x0, encodedLength = 0, encodedRawLength = 0, encodedOffset = 0, username = 0x0, mechlist = 0x0}, encode_ws = false, websocket = false, info = 0x0, force_update_offset = 0, throttle_output_offset = 0, output = {name = 0x0, capacity = 0, offset = 0, avg_size = 0, buffer = 0x0}, input = {name = 0x0, capacity = 0, offset = 0, avg_size = 0, buffer = 0x0}, write_pixels = 0x0, client_pf = {bits_per_pixel = 0 '\000', bytes_per_pixel = 0 '\000', depth = 0 '\000', rmask = 0, gmask = 0, bmask = 0, amask = 0, rshift = 0 '\000', gshift = 0 '\000', bshift = 0 '\000', ashift = 0 '\000', rmax = 0 '\000', gmax = 0 '\000', bmax = 0 '\000', amax = 0 '\000', rbits = 0 '\000', gbits = 0 '\000', bbits = 0 '\000', abits = 0 '\000'}, client_format = 0, client_be = false, audio_cap = 0x0, as = {freq = 0, nchannels = 0, fmt = AUD_FMT_U8, endianness = 0}, read_handler = 0x0, read_handler_expect = 0, modifiers_state = '\000' <repeats 255 times>, abort = false, output_mutex = {lock = {__data = {__lock = 0, __count = 0, __owner = 0, __nusers = 0, __kind = 0, __spins = 0, __elision = 0, __list = {__prev = 0x0, __next = 0x0}}, __size = '\000' <repeats 39 times>, __align = 0}, initialized = false}, bh = 0x0, jobs_buffer = {name = 0x0, capacity = 0, offset = 0, avg_size = 0, buffer = 0x0}, tight = {type = 0, quality = 0 '\000', compression = 0 '\000', pixel24 = 0 '\000', tight = {name = 0x0, capacity = 0, offset = 0, avg_size = 0, buffer = 0x0}, tmp = {name = 0x0, capacity = 0, offset = 0, avg_size = 0, buffer = 0x0}, zlib = {name = 0x0, capacity = 0, offset = 0, avg_size = 0, buffer = 0x0}, gradient = {name = 0x0, capacity = 0, offset = 0, avg_size = 0, buffer = 0x0}, png = {name = 0x0, capacity = 0, offset = 0, avg_size = 0, buffer = 0x0}, levels = {0, 0, 0, 0}, stream = {{next_in = 0x0, avail_in = 0, total_in = 0, next_out = 0x0, avail_out = 0, total_out = 0, msg = 0x0, state = 0x0, zalloc = 0x0, zfree = 0x0, opaque = 0x0, data_type = 0, adler = 0, reserved = 0}, {next_in = 0x0, avail_in = 0, total_in = 0, next_out = 0x0, avail_out = 0, total_out = 0, msg = 0x0, state = 0x0, zalloc = 0x0, zfree = 0x0, opaque = 0x0, data_type = 0, adler = 0, reserved = 0}, {next_in = 0x0, avail_in = 0, total_in = 0, next_out = 0x0, avail_out = 0, total_out = 0, msg = 0x0, state = 0x0, zalloc = 0x0, zfree = 0x0, opaque = 0x0, data_type = 0, adler = 0, reserved = 0}, {next_in = 0x0, avail_in = 0, total_in = 0, next_out = 0x0, avail_out = 0, total_out = 0, msg = 0x0, state = 0x0, zalloc = 0x0, zfree = 0x0, opaque = 0x0, data_type = 0, adler = 0, reserved = 0}}}, zlib = {zlib = {name = 0x0, capacity = 0, offset = 0, avg_size = 0, buffer = 0x0}, tmp = {name = 0x0, capacity = 0, offset = 0, avg_size = 0, buffer = 0x0}, stream = {next_in = 0x0, avail_in = 0, total_in = 0, next_out = 0x0, avail_out = 0, total_out = 0, msg = 0x0, state = 0x0, zalloc = 0x0, zfree = 0x0, opaque = 0x0, data_type = 0, adler = 0, reserved = 0}, level = 0}, hextile = {send_tile = 0x0}, zrle = {type = 0, fb = {name = 0x0, capacity = 0, offset = 0, avg_size = 0, buffer = 0x0}, zrle = {name = 0x0, capacity = 0, offset = 0, avg_size = 0, buffer = 0x0}, tmp = {name = 0x0, capacity = 0, offset = 0, avg_size = 0, buffer = 0x0}, zlib = {name = 0x0, capacity = 0, offset = 0, avg_size = 0, buffer = 0x0}, stream = {next_in = 0x0, avail_in = 0, total_in = 0, next_out = 0x0, avail_out = 0, total_out = 0, msg = 0x0, state = 0x0, zalloc = 0x0, zfree = 0x0, opaque = 0x0, data_type = 0, adler = 0, reserved = 0}, palette = {pool = {{idx = 0, color = 0, next = {le_next = 0x0, le_prev = 0x0}} <repeats 256 times>}, size = 0, max = 0, bpp = 0, table = {{lh_first = 0x0} <repeats 256 times>}}}, zywrle = {buf = {0 <repeats 4096 times>}}, mouse_mode_notifier = {notify = 0x0, node = {le_next = 0x0, le_prev = 0x0}}, next = {tqe_next = 0x0, tqe_prev = 0x0}}
>        n_rectangles = <optimized out>
>        saved_offset = <optimized out>
>#3  0x0000556212bab648 in vnc_worker_thread (arg=0x556214cd43f0) at ui/vnc-jobs.c:317
>        queue = 0x556214cd43f0
>#4  0x00007f0a48772dd5 in start_thread (arg=0x7f09f41ff700) at pthread_create.c:308
>        __res = <optimized out>
>        pd = 0x7f09f41ff700
>        now = <optimized out>
>        unwind_buf = 
>              {cancel_jmp_buf = {{jmp_buf = {139680727168768, -7117437805452392306, 0, 8392704, 0, 139680727168768, 7145559188420364430, 7146465940587743374}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
>        not_first_call = <optimized out>
>        pagesize_m1 = <optimized out>
>        sp = <optimized out>
>        freesize = <optimized out>
>#5  0x00007f0a4849cb3d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113
>
>Thread 2 (Thread 0x7f0a36439700 (LWP 12729)):
>#0  0x00007f0a487794cd in __lll_lock_wait () at ../nptl/sysdeps/unix/sysv/linux/x86_64/lowlevellock.S:135
>#1  0x00007f0a4877bd8c in _L_cond_lock_789 () at /usr/lib64/libpthread-2.17.so
>#2  0x00007f0a4877bc21 in __pthread_mutex_cond_lock (mutex=0x55621323fba0 <qemu_global_mutex>) at ../nptl/pthread_mutex_lock.c:79
>        type = 0
>        id = <optimized out>
>#3  0x00007f0a487769d5 in pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:259
>#4  0x0000556212c79ca0 in qemu_cond_wait (cond=<optimized out>, mutex=mutex@entry=0x55621323fba0 <qemu_global_mutex>) at util/qemu-thread-posix.c:161
>        err = <optimized out>
>        __PRETTY_FUNCTION__ = "qemu_cond_wait"
>        __func__ = "qemu_cond_wait"
>#5  0x0000556212990adb in qemu_kvm_cpu_thread_fn (cpu=<optimized out>) at /usr/src/debug/qemu-2.10.0/cpus.c:1105
>        cpu = 0x5562150ee000
>        r = <optimized out>
>#6  0x0000556212990adb in qemu_kvm_cpu_thread_fn (arg=0x5562150ee000) at /usr/src/debug/qemu-2.10.0/cpus.c:1143
>        cpu = 0x5562150ee000
>        r = <optimized out>
>#7  0x00007f0a48772dd5 in start_thread (arg=0x7f0a36439700) at pthread_create.c:308
>        __res = <optimized out>
>        pd = 0x7f0a36439700
>        now = <optimized out>
>        unwind_buf = 
>              {cancel_jmp_buf = {{jmp_buf = {139681836799744, -7117437805452392306, 0, 8392704, 0, 139681836799744, 7146549054901782670, 7146465940587743374}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
>        not_first_call = <optimized out>
>        pagesize_m1 = <optimized out>
>        sp = <optimized out>
>        freesize = <optimized out>
>#8  0x00007f0a4849cb3d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113
>
>Thread 1 (Thread 0x7f0a4e821040 (LWP 12670)):
>#0  0x00007f0a483d4207 in __GI_raise (sig=sig@entry=6) at ../nptl/sysdeps/unix/sysv/linux/raise.c:56
>        resultvar = 0
>        pid = 12670
>        selftid = 12670
>#1  0x00007f0a483d58f8 in __GI_abort () at abort.c:90
>        save_stage = 2
>        act = 
>          {__sigaction_handler = {sa_handler = 0x7ffd3dbd87be, sa_sigaction = 0x7ffd3dbd87be}, sa_mask = {__val = {139682139756080, 93879711107946, 288, 93879744390700, 139682138352163, 140725639279216, 4, 47244640256, 93879744377856, 256, 0, 0, 0, 21474836480, 139682139756080, 139682139768096}}, sa_flags = 315952028, sa_restorer = 0x556212d51310 <__PRETTY_FUNCTION__.27915>}
>        sigs = {__val = {32, 0 <repeats 15 times>}}
>#2  0x00007f0a483cd026 in __assert_fail_base (fmt=0x7f0a48528520 "%s%s%s:%u: %s%sAssertion `%s' failed.\n%n", assertion=assertion@entry=0x556212d50b9c "bs->quiesce_counter > 0", file=file@entry=0x556212d50b6a "block/io.c", line=line@entry=288, function=function@entry=0x556212d51310 <__PRETTY_FUNCTION__.27915> "bdrv_drained_end")
>    at assert.c:92
>        str = 0x556214cd9880 "\240\227\315\024bU"
>        total = 4096
>#3  0x00007f0a483cd0d2 in __GI___assert_fail (assertion=assertion@entry=0x556212d50b9c "bs->quiesce_counter > 0", file=file@entry=0x556212d50b6a "block/io.c", line=line@entry=288, function=function@entry=0x556212d51310 <__PRETTY_FUNCTION__.27915> "bdrv_drained_end") at assert.c:101
>#4  0x0000556212bfe8b7 in bdrv_drained_end (bs=0x556215beb400) at block/io.c:288
>#5  0x0000556212bfeb2e in bdrv_drain_all_end (bs=0x556214d08000) at block/io.c:58
>        c = <optimized out>
>        next = 0x0
>        aio_context = 0x556214cd6780
>        bs = 0x556214d08000
>        it = {phase = BDRV_NEXT_BACKEND_ROOTS, blk = 0x556214b6c780, bs = 0x0}
>#6  0x0000556212bfeb2e in bdrv_drain_all_end () at block/io.c:392
>        aio_context = 0x556214cd6780
>        bs = 0x556214d08000
>        it = {phase = BDRV_NEXT_BACKEND_ROOTS, blk = 0x556214b6c780, bs = 0x0}
>#7  0x0000556212bfebb2 in bdrv_drain_all () at block/io.c:403
>#8  0x0000556212bf2205 in blk_drain_all () at block/block-backend.c:1485
>#9  0x00005562129d6dba in virtio_scsi_dataplane_stop (vdev=0x556216194170) at /usr/src/debug/qemu-2.10.0/hw/scsi/virtio-scsi-dataplane.c:213
>        qbus = 0x5562161940f8
>        __func__ = "virtio_scsi_dataplane_stop"
>        k = 0x556214b6f7c0
>        vs = 0x556216194170
>        s = 0x556216194170
>        i = <optimized out>
>#10 0x0000556212b532c5 in virtio_bus_stop_ioeventfd (bus=0x5562161940f8) at hw/virtio/virtio-bus.c:246
>        vdev = 0x556216194170
>        vdc = <optimized out>
>        __func__ = "virtio_bus_stop_ioeventfd"
>#11 0x00005562129e3737 in virtio_vmstate_change (opaque=0x556216194170, running=<optimized out>, state=<optimized out>)
>    at /usr/src/debug/qemu-2.10.0/hw/virtio/virtio.c:2230
>        vdev = 0x556216194170
>        qbus = 0x5562161940f8
>        __func__ = "virtio_vmstate_change"
>        k = 0x556214b6f7c0
>        backend_run = <optimized out>
>#12 0x0000556212a70262 in vm_state_notify (running=running@entry=0, state=state@entry=RUN_STATE_SHUTDOWN) at vl.c:1623
>        e = <optimized out>
>        next = 0x556215ecbec0
>#13 0x00005562129918fa in do_vm_stop (state=state@entry=RUN_STATE_SHUTDOWN, send_stop=send_stop@entry=false) at /usr/src/debug/qemu-2.10.0/cpus.c:941
>#14 0x0000556212991919 in vm_shutdown () at /usr/src/debug/qemu-2.10.0/cpus.c:959
>#15 0x0000556212956a3f in main (argc=<optimized out>, argv=<optimized out>, envp=<optimized out>) at vl.c:4831
>        i = <optimized out>
>        snapshot = <optimized out>
>        linux_boot = <optimized out>
>        initrd_filename = <optimized out>
>        kernel_filename = <optimized out>
>        kernel_cmdline = <optimized out>
>        boot_order = <optimized out>
>        boot_once = 0x0
>        cyls = <optimized out>
>        heads = <optimized out>
>        secs = <optimized out>
>        translation = <optimized out>
>        opts = <optimized out>
>        machine_opts = <optimized out>
>        hda_opts = <optimized out>
>        icount_opts = <optimized out>
>        accel_opts = <optimized out>
>        olist = <optimized out>
>        optind = 74
>        optarg = 0x7ffd3dbd8f81 "timestamp=on"
>        loadvm = <optimized out>
>        machine_class = 0x0
>        cpu_model = <optimized out>
>        vga_model = 0x0
>        qtest_chrdev = <optimized out>
>        qtest_log = <optimized out>
>        pid_file = <optimized out>
>        incoming = <optimized out>
>        defconfig = <optimized out>
>        userconfig = <optimized out>
>        nographic = <optimized out>
>        display_type = <optimized out>
>        display_remote = <optimized out>
>        log_mask = <optimized out>
>        log_file = <optimized out>
>        trace_file = <optimized out>
>        maxram_size = <optimized out>
>        ram_slots = <optimized out>
>        vmstate_dump_file = <optimized out>
>        main_loop_err = 0x0
>        err = 0x0
>        list_data_dirs = <optimized out>
>        bdo_queue = {sqh_first = 0x0, sqh_last = 0x7ffd3dbd7610}
>        __func__ = "main"
>        __FUNCTION__ = "main"
>#0  0x00007efccd7dc1fd in poll () at ../sysdeps/unix/syscall-template.S:81
>No locals.
>#1  0x00007efcd089aa36 in poll (__timeout=4999, __nfds=14, __fds=<optimized out>) at /usr/include/bits/poll2.h:46
>No locals.
>#2  virEventPollRunOnce () at util/vireventpoll.c:641
>        fds = 0x556177d64230
>        ret = <optimized out>
>        timeout = 4999
>        nfds = 14
>        __func__ = "virEventPollRunOnce"
>        __FUNCTION__ = "virEventPollRunOnce"
>#3  0x00007efcd0899512 in virEventRunDefaultImpl () at util/virevent.c:327
>        __func__ = "virEventRunDefaultImpl"
>#4  0x00007efcd09c2b9d in virNetDaemonRun (dmn=dmn@entry=0x556177d06640) at rpc/virnetdaemon.c:850
>        timerid = -1
>        timerActive = false
>        __FUNCTION__ = "virNetDaemonRun"
>        __func__ = "virNetDaemonRun"
>#5  0x0000556176ca9019 in main (argc=<optimized out>, argv=<optimized out>) at remote/remote_daemon.c:1483
>        dmn = 0x556177d06640
>        srv = 0x556177d06cb0
>        srvAdm = 0x556177d60a00
>        adminProgram = 0x556177d60480
>        lxcProgram = 0x556177d605e0
>        remote_config_file = 0x556177d05730 "/etc/libvirt/libvirtd.conf"
>        statuswrite = -1
>        ret = 1
>        pid_file_fd = 5
>        pid_file = 0x556177d06450 "/var/run/libvirtd.pid"
>        sock_file = 0x556177d120d0 "/var/run/libvirt/libvirt-sock"
>        sock_file_ro = 0x556177d12050 "/var/run/libvirt/libvirt-sock-ro"
>        sock_file_adm = 0x556177d11fd0 "/var/run/libvirt/libvirt-admin-sock"
>        timeout = -1
>        verbose = 0
>        godaemon = 0
>        ipsock = 108
>        config = 0x556177d01c60
>        privileged = <optimized out>
>        implicit_conf = <optimized out>
>        run_dir = 0x556177d063e0 "/var/run/libvirt"
>        old_umask = <optimized out>
>        opts = {{name = 0x556176cddc38 "verbose", has_arg = 0, flag = 0x7ffdd32c06f0, val = 118}, {name = 0x556176cddc40 "daemon", has_arg = 0, flag = 0x7ffdd32c06f4, 
>            val = 100}, {name = 0x556176cddc47 "listen", has_arg = 0, flag = 0x7ffdd32c06f8, val = 108}, {name = 0x556176cddd21 "config", has_arg = 1, flag = 0x0, 
>            val = 102}, {name = 0x556176cddc9d "timeout", has_arg = 1, flag = 0x0, val = 116}, {name = 0x556176cddc4e "pid-file", has_arg = 1, flag = 0x0, val = 112}, {
>            name = 0x556176cddc57 "version", has_arg = 0, flag = 0x0, val = 86}, {name = 0x556176cddc5f "help", has_arg = 0, flag = 0x0, val = 104}, {name = 0x0, 
>            has_arg = 0, flag = 0x0, val = 0}}
>        __func__ = "main"
>
>Thread 19 (Thread 0x7efcc0c98700 (LWP 16885)):
>#0  __lll_lock_wait () at ../nptl/sysdeps/unix/sysv/linux/x86_64/lowlevellock.S:135
>No locals.
>#1  0x00007efccdabfdcb in _L_lock_812 () from /lib64/libpthread.so.0
>No symbol table info available.
>#2  0x00007efccdabfc98 in __GI___pthread_mutex_lock (mutex=0x7efc6c61d8d0) at ../nptl/pthread_mutex_lock.c:78
>        type = 0
>        id = <optimized out>
>#3  0x00007efcd08f9d35 in virMutexLock (m=<optimized out>) at util/virthread.c:89
>No locals.
>#4  0x00007efcd08d39bb in virObjectLock (anyobj=anyobj@entry=0x7efc6c61d8c0) at util/virobject.c:429
>        obj = <optimized out>
>#5  0x00007efcd0958d78 in virDomainObjListFindByUUIDLocked (uuid=uuid@entry=0x7efcb8010524 "+\277u\276\235\247M\201\236\002\rB\225\356", <incomplete sequence \360\236>, 
>    doms=0x7efc6c44bd30) at conf/virdomainobjlist.c:147
>        uuidstr = "2bbf75be-9da7-4d81-9e02-0d4295eef09e"
>        obj = 0x7efc6c61d8c0
>#6  0x00007efcd095930d in virDomainObjListFindByUUID (doms=0x7efc6c44bd30, 
>    uuid=uuid@entry=0x7efcb8010524 "+\277u\276\235\247M\201\236\002\rB\225\356", <incomplete sequence \360\236>) at conf/virdomainobjlist.c:173
>        obj = <optimized out>
>#7  0x00007efca68bc6e8 in qemuDomObjFromDomain (domain=domain@entry=0x7efcb8010500) at qemu/qemu_driver.c:206
>        vm = <optimized out>
>        driver = <optimized out>
>        uuidstr = "\360\063\263\320\374~\000\000`\a\001\270\321!\000\000{ \263\320\374~\000\000@x\311\300\374~\000\000\000\000\000\000"
>        __FUNCTION__ = "qemuDomObjFromDomain"
>#8  0x00007efca68c9a34 in qemuDomainGetJobInfo (dom=0x7efcb8010500, info=0x7efcc0c97aa0) at qemu/qemu_driver.c:13595
>        driver = 0x7efc6c0fac20
>        jobInfo = {status = 942747698, operation = 758525997, started = 3616735993050182960, stopped = 3114011780418385210, sent = 3616735748238094384, 
>          received = 3114011780418385210, timeElapsed = 8038753407221331968, timeDelta = 139624031287944, timeDeltaSet = false, statsType = 32508, stats = {mig = {
>              status = -1060537696, total_time = 139624031287776, downtime_set = 80, downtime = 93877110336688, setup_time_set = 176, setup_time = 139624295672935, 
>              ram_transferred = 139624298249760, ram_remaining = 139624031287488, ram_total = 206158430256, ram_bps = 139624031287752, ram_duplicate_set = 224, 
>              ram_duplicate = 8038753407221331968, ram_normal = 139624031287536, ram_normal_bytes = 8038753407221331968, ram_dirty_rate = 3114011780418385210, 
>              ram_page_size = 139623883866144, ram_iteration = 0, disk_transferred = 139624295971957, disk_remaining = 191, disk_total = 139620796858485, disk_bps = 190, 
>              xbzrle_set = 157, xbzrle_cache_size = 167, xbzrle_bytes = 139620796858445, xbzrle_pages = 139620796858497, xbzrle_cache_miss = 139624295524946, 
>              xbzrle_overflow = 2, cpu_throttle_percentage = 13}, dump = {status = -1060537696, completed = 139624031287776, total = 139624300956752}}, mirrorStats = {
>            transferred = 139623883868912, total = 139624295404602}}
>        vm = 0x3000000030
>        ret = -1
>#9  0x00007efcd0a919f8 in virDomainGetJobInfo (domain=domain@entry=0x7efcb8010500, info=info@entry=0x7efcc0c97aa0) at libvirt-domain.c:8671
>        ret = <optimized out>
>        conn = <optimized out>
>        __func__ = "virDomainGetJobInfo"
>        __FUNCTION__ = "virDomainGetJobInfo"
>#10 0x0000556176cc78b3 in remoteDispatchDomainGetJobInfo (server=0x556177d06cb0, msg=0x556177d069b0, ret=0x7efcb80105d0, args=<optimized out>, rerr=0x7efcc0c97c10, 
>    client=0x556177d63e20) at remote/remote_daemon_dispatch_stubs.h:5827
>        rv = -1
>        tmp = {type = 0, timeElapsed = 0, timeRemaining = 0, dataTotal = 0, dataProcessed = 0, dataRemaining = 0, memTotal = 0, memProcessed = 0, memRemaining = 0, 
>          fileTotal = 0, fileProcessed = 0, fileRemaining = 0}
>        dom = 0x7efcb8010500
>        priv = <optimized out>
>#11 remoteDispatchDomainGetJobInfoHelper (server=0x556177d06cb0, client=0x556177d63e20, msg=0x556177d069b0, rerr=0x7efcc0c97c10, args=<optimized out>, ret=0x7efcb80105d0)
>    at remote/remote_daemon_dispatch_stubs.h:5801
>        rv = -1207892528
>        __func__ = "remoteDispatchDomainGetJobInfoHelper"
>#12 0x00007efcd09bcb45 in virNetServerProgramDispatchCall (msg=0x556177d069b0, client=0x556177d63e20, server=0x556177d06cb0, prog=0x556177d60540)
>    at rpc/virnetserverprogram.c:437
>        ret = 0x7efcb80105d0 ""
>        rv = -1
>        i = <optimized out>
>        identity = 0x7efc94000de0
>        arg = 0x7efcb8010540 "\340\004\001\270\374~"
>        dispatcher = 0x556176efe090 <remoteProcs+7824>
>        rerr = {code = 0, domain = 0, message = 0x0, level = 0, dom = 0x0, str1 = 0x0, str2 = 0x0, str3 = 0x0, int1 = 0, int2 = 0, net = 0x0}
>#13 virNetServerProgramDispatch (prog=0x556177d60540, server=server@entry=0x556177d06cb0, client=0x556177d63e20, msg=0x556177d069b0) at rpc/virnetserverprogram.c:304
>        rerr = {code = 0, domain = 0, message = 0x0, level = 0, dom = 0x0, str1 = 0x0, str2 = 0x0, str3 = 0x0, int1 = 0, int2 = 0, net = 0x0}
>        __func__ = "virNetServerProgramDispatch"
>        __FUNCTION__ = "virNetServerProgramDispatch"
>#14 0x00007efcd09c331d in virNetServerProcessMsg (msg=<optimized out>, prog=<optimized out>, client=<optimized out>, srv=0x556177d06cb0) at rpc/virnetserver.c:145
>        ret = -1
>#15 virNetServerHandleJob (jobOpaque=<optimized out>, opaque=0x556177d06cb0) at rpc/virnetserver.c:166
>        srv = 0x556177d06cb0
>        job = 0x556177d62c30
>        __func__ = "virNetServerHandleJob"
>#16 0x00007efcd08fa821 in virThreadPoolWorker (opaque=opaque@entry=0x556177d06530) at util/virthreadpool.c:167
>        data = 0x0
>        pool = 0x556177d06ac0
>        cond = 0x556177d06b28
>        priority = false
>        curWorkers = 0x556177d06ba0
>        maxLimit = 0x556177d06b88
>        job = 0x556177d63860
>#17 0x00007efcd08f9ba8 in virThreadHelper (data=<optimized out>) at util/virthread.c:206
>        args = 0x0
>        local = {func = 0x7efcd08fa740 <virThreadPoolWorker>, funcName = 0x7efcd0b0fd0b "virNetServerHandleJob", worker = true, opaque = 0x556177d06530}
>#18 0x00007efccdabddd5 in start_thread (arg=0x7efcc0c98700) at pthread_create.c:307
>        __res = <optimized out>
>        pd = 0x7efcc0c98700
>        now = <optimized out>
>        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {139624031291136, -5104798514948361870, 0, 8392704, 0, 139624031291136, 4958917695821033842, 4958893767482782066}, 
>              mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
>        not_first_call = <optimized out>
>        pagesize_m1 = <optimized out>
>        sp = <optimized out>
>        freesize = <optimized out>
>#19 0x00007efccd7e6e9d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111
>No locals.
>
>Thread 18 (Thread 0x7efcc0497700 (LWP 16886)):
>#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
>No locals.
>#1  0x00007efcd08f9e16 in virCondWait (c=c@entry=0x556177d06b28, m=m@entry=0x556177d06b00) at util/virthread.c:154
>        ret = <optimized out>
>#2  0x00007efcd08fa8d3 in virThreadPoolWorker (opaque=opaque@entry=0x556177d06140) at util/virthreadpool.c:124
>        data = 0x0
>        pool = 0x556177d06ac0
>        cond = 0x556177d06b28
>        priority = false
>        curWorkers = 0x556177d06ba0
>        maxLimit = 0x556177d06b88
>        job = 0x0
>#3  0x00007efcd08f9ba8 in virThreadHelper (data=<optimized out>) at util/virthread.c:206
>        args = 0x0
>        local = {func = 0x7efcd08fa740 <virThreadPoolWorker>, funcName = 0x7efcd0b0fd0b "virNetServerHandleJob", worker = true, opaque = 0x556177d06140}
>#4  0x00007efccdabddd5 in start_thread (arg=0x7efcc0497700) at pthread_create.c:307
>        __res = <optimized out>
>        pd = 0x7efcc0497700
>        now = <optimized out>
>        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {139624022898432, -5104798514948361870, 0, 8392704, 0, 139624022898432, 4958916595772535154, 4958893767482782066}, 
>              mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
>        not_first_call = <optimized out>
>        pagesize_m1 = <optimized out>
>        sp = <optimized out>
>        freesize = <optimized out>
>#5  0x00007efccd7e6e9d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111
>No locals.
>
>Thread 17 (Thread 0x7efcbfc96700 (LWP 16887)):
>#0  0x00007efccdabef47 in pthread_join (threadid=139622922487552, thread_return=thread_return@entry=0x0) at pthread_join.c:90
>        _tid = 18286
>        _buffer = {__routine = 0x7efccdabee80 <cleanup>, __arg = 0x7efc7eb28d28, __canceltype = 0, __prev = 0x0}
>        oldtype = 0
>        pd = 0x7efc7eb28700
>        self = 0x7efcbfc96700
>        result = 0
>#1  0x00007efcd08fa07a in virThreadJoin (thread=<optimized out>) at util/virthread.c:299
>No locals.
>#2  0x00007efcd088baf0 in virCommandFree (cmd=0x7efca8000bc0) at util/vircommand.c:2810
>        i = <optimized out>
>#3  0x00007efcd089e424 in virFileWrapperFdFree (wfd=wfd@entry=0x7efca8003fb0) at util/virfile.c:359
>No locals.
>#4  0x00007efca68d72ee in qemuDomainSaveMemory (driver=driver@entry=0x7efc6c0fac20, vm=vm@entry=0x7efc6c61d8c0, 
>    path=path@entry=0x7efca80040e0 "/var/lib/libvirt/qemu/save/RHEL8.save", data=data@entry=0x7efca8018360, compressedpath=compressedpath@entry=0x0, flags=flags@entry=0, 
>    asyncJob=asyncJob@entry=QEMU_ASYNC_JOB_SAVE) at qemu/qemu_driver.c:3268
>        bypassSecurityDriver = false
>        needUnlink = true
>        ret = -1
>        fd = -1
>        directFlag = <optimized out>
>        wrapperFd = <optimized out>
>        wrapperFlags = <optimized out>
>        __FUNCTION__ = "qemuDomainSaveMemory"
>#5  0x00007efca68d755c in qemuDomainSaveInternal (driver=driver@entry=0x7efc6c0fac20, vm=0x7efc6c61d8c0, path=0x7efca80040e0 "/var/lib/libvirt/qemu/save/RHEL8.save", 
>    compressed=compressed@entry=0, compressedpath=0x0, xmlin=xmlin@entry=0x0, flags=flags@entry=0) at qemu/qemu_driver.c:3368
>        xml = 0x0
>        was_running = <optimized out>
>        ret = -1
>        event = 0x0
>        priv = <optimized out>
>        caps = 0x7efc6c517e60
>        data = 0x7efca8018360
>        cookie = 0x7efca80168e0
>        __FUNCTION__ = "qemuDomainSaveInternal"
>        __func__ = "qemuDomainSaveInternal"
>#6  0x00007efca68e9e19 in qemuDomainManagedSave (dom=<optimized out>, flags=0) at qemu/qemu_driver.c:3587
>        driver = 0x7efc6c0fac20
>        cfg = 0x7efc6c0fe1d0
>        compressed = 0
>        compressedpath = 0x0
>        vm = 0x7efc6c61d8c0
>        name = 0x7efca80040e0 "/var/lib/libvirt/qemu/save/RHEL8.save"
>        ret = -1
>        __FUNCTION__ = "qemuDomainManagedSave"
>        __func__ = "qemuDomainManagedSave"
>#7  0x00007efcd0a9394f in virDomainManagedSave (dom=dom@entry=0x7efca8003ef0, flags=0) at libvirt-domain.c:9303
>        ret = <optimized out>
>        conn = 0x7efc98000cb0
>        __func__ = "virDomainManagedSave"
>        __FUNCTION__ = "virDomainManagedSave"
>#8  0x0000556176cc67a6 in remoteDispatchDomainManagedSave (server=0x556177d06cb0, msg=0x556177d63a80, args=0x7efca8003f30, rerr=0x7efcbfc95c10, client=<optimized out>)
>    at remote/remote_daemon_dispatch_stubs.h:7316
>        dom = 0x7efca8003ef0
>        priv = <optimized out>
>#9  remoteDispatchDomainManagedSaveHelper (server=0x556177d06cb0, client=<optimized out>, msg=0x556177d63a80, rerr=0x7efcbfc95c10, args=0x7efca8003f30, ret=0x7efca8003ed0)
>    at remote/remote_daemon_dispatch_stubs.h:7292
>        rv = -1476378832
>        __func__ = "remoteDispatchDomainManagedSaveHelper"
>#10 0x00007efcd09bcb45 in virNetServerProgramDispatchCall (msg=0x556177d63a80, client=0x556177d63e20, server=0x556177d06cb0, prog=0x556177d60540)
>    at rpc/virnetserverprogram.c:437
>        ret = 0x7efca8003ed0 ""
>        rv = -1
>        i = <optimized out>
>        identity = 0x7efc94000de0
>        arg = 0x7efca8003f30 "\220="
>        dispatcher = 0x556176efe420 <remoteProcs+8736>
>        rerr = {code = 0, domain = 0, message = 0x0, level = 0, dom = 0x0, str1 = 0x0, str2 = 0x0, str3 = 0x0, int1 = 0, int2 = 0, net = 0x0}
>#11 virNetServerProgramDispatch (prog=0x556177d60540, server=server@entry=0x556177d06cb0, client=0x556177d63e20, msg=0x556177d63a80) at rpc/virnetserverprogram.c:304
>        rerr = {code = 0, domain = 0, message = 0x0, level = 0, dom = 0x0, str1 = 0x0, str2 = 0x0, str3 = 0x0, int1 = 0, int2 = 0, net = 0x0}
>        __func__ = "virNetServerProgramDispatch"
>        __FUNCTION__ = "virNetServerProgramDispatch"
>#12 0x00007efcd09c331d in virNetServerProcessMsg (msg=<optimized out>, prog=<optimized out>, client=<optimized out>, srv=0x556177d06cb0) at rpc/virnetserver.c:145
>        ret = -1
>#13 virNetServerHandleJob (jobOpaque=<optimized out>, opaque=0x556177d06cb0) at rpc/virnetserver.c:166
>        srv = 0x556177d06cb0
>        job = 0x556177d63120
>        __func__ = "virNetServerHandleJob"
>#14 0x00007efcd08fa821 in virThreadPoolWorker (opaque=opaque@entry=0x556177d061b0) at util/virthreadpool.c:167
>        data = 0x0
>        pool = 0x556177d06ac0
>        cond = 0x556177d06b28
>        priority = false
>        curWorkers = 0x556177d06ba0
>        maxLimit = 0x556177d06b88
>        job = 0x556177d632d0
>#15 0x00007efcd08f9ba8 in virThreadHelper (data=<optimized out>) at util/virthread.c:206
>        args = 0x0
>        local = {func = 0x7efcd08fa740 <virThreadPoolWorker>, funcName = 0x7efcd0b0fd0b "virNetServerHandleJob", worker = true, opaque = 0x556177d061b0}
>#16 0x00007efccdabddd5 in start_thread (arg=0x7efcbfc96700) at pthread_create.c:307
>        __res = <optimized out>
>        pd = 0x7efcbfc96700
>        now = <optimized out>
>        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {139624014505728, -5104798514948361870, 0, 8392704, 0, 139624014505728, 4958853923072881010, 4958893767482782066}, 
>              mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
>        not_first_call = <optimized out>
>        pagesize_m1 = <optimized out>
>        sp = <optimized out>
>        freesize = <optimized out>
>#17 0x00007efccd7e6e9d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111
>No locals.
>
>Thread 16 (Thread 0x7efcbf495700 (LWP 16888)):
>#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
>No locals.
>#1  0x00007efcd08f9e16 in virCondWait (c=c@entry=0x556177d06b28, m=m@entry=0x556177d06b00) at util/virthread.c:154
>        ret = <optimized out>
>#2  0x00007efcd08fa8d3 in virThreadPoolWorker (opaque=opaque@entry=0x556177cfaa40) at util/virthreadpool.c:124
>        data = 0x0
>        pool = 0x556177d06ac0
>        cond = 0x556177d06b28
>        priority = false
>        curWorkers = 0x556177d06ba0
>        maxLimit = 0x556177d06b88
>        job = 0x0
>#3  0x00007efcd08f9ba8 in virThreadHelper (data=<optimized out>) at util/virthread.c:206
>        args = 0x0
>        local = {func = 0x7efcd08fa740 <virThreadPoolWorker>, funcName = 0x7efcd0b0fd0b "virNetServerHandleJob", worker = true, opaque = 0x556177cfaa40}
>#4  0x00007efccdabddd5 in start_thread (arg=0x7efcbf495700) at pthread_create.c:307
>        __res = <optimized out>
>        pd = 0x7efcbf495700
>        now = <optimized out>
>        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {139624006113024, -5104798514948361870, 0, 8392704, 0, 139624006113024, 4958852823024382322, 4958893767482782066}, 
>              mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
>        not_first_call = <optimized out>
>        pagesize_m1 = <optimized out>
>        sp = <optimized out>
>        freesize = <optimized out>
>#5  0x00007efccd7e6e9d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111
>No locals.
>
>Thread 15 (Thread 0x7efca7fff700 (LWP 16889)):
>#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
>No locals.
>#1  0x00007efcd08f9e16 in virCondWait (c=c@entry=0x556177d06b28, m=m@entry=0x556177d06b00) at util/virthread.c:154
>        ret = <optimized out>
>#2  0x00007efcd08fa8d3 in virThreadPoolWorker (opaque=opaque@entry=0x556177cfa980) at util/virthreadpool.c:124
>        data = 0x0
>        pool = 0x556177d06ac0
>        cond = 0x556177d06b28
>        priority = false
>        curWorkers = 0x556177d06ba0
>        maxLimit = 0x556177d06b88
>        job = 0x0
>#3  0x00007efcd08f9ba8 in virThreadHelper (data=<optimized out>) at util/virthread.c:206
>        args = 0x0
>        local = {func = 0x7efcd08fa740 <virThreadPoolWorker>, funcName = 0x7efcd0b0fd0b "virNetServerHandleJob", worker = true, opaque = 0x556177cfa980}
>#4  0x00007efccdabddd5 in start_thread (arg=0x7efca7fff700) at pthread_create.c:307
>        __res = <optimized out>
>        pd = 0x7efca7fff700
>        now = <optimized out>
>        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {139623615428352, -5104798514948361870, 0, 8392704, 0, 139623615428352, 4958836146740113778, 4958893767482782066}, 
>              mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
>        not_first_call = <optimized out>
>        pagesize_m1 = <optimized out>
>        sp = <optimized out>
>        freesize = <optimized out>
>#5  0x00007efccd7e6e9d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111
>No locals.
>
>Thread 14 (Thread 0x7efcbec94700 (LWP 16890)):
>#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
>No locals.
>#1  0x00007efcd08f9e16 in virCondWait (c=c@entry=0x556177d06bc8, m=m@entry=0x556177d06b00) at util/virthread.c:154
>        ret = <optimized out>
>#2  0x00007efcd08fa86b in virThreadPoolWorker (opaque=opaque@entry=0x556177cfa8c0) at util/virthreadpool.c:124
>        data = 0x0
>        pool = 0x556177d06ac0
>        cond = 0x556177d06bc8
>        priority = true
>        curWorkers = 0x556177d06bb8
>        maxLimit = 0x556177d06bb0
>        job = 0x0
>#3  0x00007efcd08f9ba8 in virThreadHelper (data=<optimized out>) at util/virthread.c:206
>        args = 0x0
>        local = {func = 0x7efcd08fa740 <virThreadPoolWorker>, funcName = 0x7efcd0b0fd0b "virNetServerHandleJob", worker = true, opaque = 0x556177cfa8c0}
>#4  0x00007efccdabddd5 in start_thread (arg=0x7efcbec94700) at pthread_create.c:307
>        __res = <optimized out>
>        pd = 0x7efcbec94700
>        now = <optimized out>
>        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {139623997720320, -5104798514948361870, 0, 8392704, 0, 139623997720320, 4958851722975883634, 4958893767482782066}, 
>              mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
>        not_first_call = <optimized out>
>        pagesize_m1 = <optimized out>
>        sp = <optimized out>
>        freesize = <optimized out>
>#5  0x00007efccd7e6e9d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111
>No locals.
>
>Thread 13 (Thread 0x7efcbe493700 (LWP 16891)):
>#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
>No locals.
>#1  0x00007efcd08f9e16 in virCondWait (c=c@entry=0x556177d06bc8, m=m@entry=0x556177d06b00) at util/virthread.c:154
>        ret = <optimized out>
>#2  0x00007efcd08fa86b in virThreadPoolWorker (opaque=opaque@entry=0x556177d061b0) at util/virthreadpool.c:124
>        data = 0x0
>        pool = 0x556177d06ac0
>        cond = 0x556177d06bc8
>        priority = true
>        curWorkers = 0x556177d06bb8
>        maxLimit = 0x556177d06bb0
>        job = 0x0
>#3  0x00007efcd08f9ba8 in virThreadHelper (data=<optimized out>) at util/virthread.c:206
>        args = 0x0
>        local = {func = 0x7efcd08fa740 <virThreadPoolWorker>, funcName = 0x7efcd0b0fd0b "virNetServerHandleJob", worker = true, opaque = 0x556177d061b0}
>#4  0x00007efccdabddd5 in start_thread (arg=0x7efcbe493700) at pthread_create.c:307
>        __res = <optimized out>
>        pd = 0x7efcbe493700
>        now = <optimized out>
>        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {139623989327616, -5104798514948361870, 0, 8392704, 0, 139623989327616, 4958850622927384946, 4958893767482782066}, 
>              mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
>        not_first_call = <optimized out>
>        pagesize_m1 = <optimized out>
>        sp = <optimized out>
>        freesize = <optimized out>
>#5  0x00007efccd7e6e9d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111
>No locals.
>
>Thread 12 (Thread 0x7efcbdc92700 (LWP 16892)):
>#0  __lll_lock_wait () at ../nptl/sysdeps/unix/sysv/linux/x86_64/lowlevellock.S:135
>No locals.
>#1  0x00007efccdabfdcb in _L_lock_812 () from /lib64/libpthread.so.0
>No symbol table info available.
>#2  0x00007efccdabfc98 in __GI___pthread_mutex_lock (mutex=0x7efc6c61d8d0) at ../nptl/pthread_mutex_lock.c:78
>        type = 0
>        id = <optimized out>
>#3  0x00007efcd08f9d35 in virMutexLock (m=<optimized out>) at util/virthread.c:89
>No locals.
>#4  0x00007efcd08d39bb in virObjectLock (anyobj=anyobj@entry=0x7efc6c61d8c0) at util/virobject.c:429
>        obj = <optimized out>
>#5  0x00007efcd0958a6a in virDomainObjListFilter (list=list@entry=0x7efcbdc919c0, nvms=nvms@entry=0x7efcbdc919c8, conn=conn@entry=0x7efcb0000f50, 
>    filter=filter@entry=0x7efcd099f420 <virConnectListAllDomainsCheckACL>, flags=flags@entry=1) at conf/virdomainobjlist.c:919
>        vm = 0x7efc6c61d8c0
>        i = 0
>#6  0x00007efcd0959e73 in virDomainObjListCollect (domlist=0x7efc6c44bd30, conn=conn@entry=0x7efcb0000f50, vms=vms@entry=0x7efcbdc91a30, nvms=nvms@entry=0x7efcbdc91a40, 
>    filter=0x7efcd099f420 <virConnectListAllDomainsCheckACL>, flags=1) at conf/virdomainobjlist.c:961
>        data = {vms = 0x7efc90000b10, nvms = 3}
>        __FUNCTION__ = "virDomainObjListCollect"
>#7  0x00007efcd095a155 in virDomainObjListExport (domlist=<optimized out>, conn=0x7efcb0000f50, domains=0x7efcbdc91b00, filter=<optimized out>, flags=<optimized out>)
>    at conf/virdomainobjlist.c:1042
>        vms = 0x0
>        doms = 0x0
>        nvms = 0
>        i = <optimized out>
>        ret = -1
>        __FUNCTION__ = "virDomainObjListExport"
>#8  0x00007efcd0a8ad93 in virConnectListAllDomains (conn=0x7efcb0000f50, domains=0x7efcbdc91b00, flags=1) at libvirt-domain.c:6490
>        ret = <optimized out>
>        __func__ = "virConnectListAllDomains"
>        __FUNCTION__ = "virConnectListAllDomains"
>#9  0x0000556176cbc8b8 in remoteDispatchConnectListAllDomains (server=0x556177d06cb0, msg=0x556177d63f20, ret=0x7efc90000920, args=0x7efc90000900, rerr=0x7efcbdc91c10, 
>    client=<optimized out>) at remote/remote_daemon_dispatch_stubs.h:1372
>        rv = -1
>        i = <optimized out>
>        nresults = 0
>        result = 0x0
>        priv = <optimized out>
>#10 remoteDispatchConnectListAllDomainsHelper (server=0x556177d06cb0, client=<optimized out>, msg=0x556177d63f20, rerr=0x7efcbdc91c10, args=0x7efc90000900, 
>    ret=0x7efc90000920) at remote/remote_daemon_dispatch_stubs.h:1348
>        rv = 2010148016
>        __func__ = "remoteDispatchConnectListAllDomainsHelper"
>#11 0x00007efcd09bcb45 in virNetServerProgramDispatchCall (msg=0x556177d63f20, client=0x556177d64060, server=0x556177d06cb0, prog=0x556177d60540)
>    at rpc/virnetserverprogram.c:437
>        ret = 0x7efc90000920 ""
>        rv = -1
>        i = <optimized out>
>        identity = 0x7efc9c000940
>        arg = 0x7efc90000900 "\001"
>        dispatcher = 0x556176eff530 <remoteProcs+13104>
>        rerr = {code = 0, domain = 0, message = 0x0, level = 0, dom = 0x0, str1 = 0x0, str2 = 0x0, str3 = 0x0, int1 = 0, int2 = 0, net = 0x0}
>#12 virNetServerProgramDispatch (prog=0x556177d60540, server=server@entry=0x556177d06cb0, client=0x556177d64060, msg=0x556177d63f20) at rpc/virnetserverprogram.c:304
>        rerr = {code = 0, domain = 0, message = 0x0, level = 0, dom = 0x0, str1 = 0x0, str2 = 0x0, str3 = 0x0, int1 = 0, int2 = 0, net = 0x0}
>        __func__ = "virNetServerProgramDispatch"
>        __FUNCTION__ = "virNetServerProgramDispatch"
>#13 0x00007efcd09c331d in virNetServerProcessMsg (msg=<optimized out>, prog=<optimized out>, client=<optimized out>, srv=0x556177d06cb0) at rpc/virnetserver.c:145
>        ret = -1
>#14 virNetServerHandleJob (jobOpaque=<optimized out>, opaque=0x556177d06cb0) at rpc/virnetserver.c:166
>        srv = 0x556177d06cb0
>        job = 0x556177d64fd0
>        __func__ = "virNetServerHandleJob"
>#15 0x00007efcd08fa821 in virThreadPoolWorker (opaque=opaque@entry=0x556177d06140) at util/virthreadpool.c:167
>        data = 0x0
>        pool = 0x556177d06ac0
>        cond = 0x556177d06bc8
>        priority = true
>        curWorkers = 0x556177d06bb8
>        maxLimit = 0x556177d06bb0
>        job = 0x556177d63180
>#16 0x00007efcd08f9ba8 in virThreadHelper (data=<optimized out>) at util/virthread.c:206
>        args = 0x0
>        local = {func = 0x7efcd08fa740 <virThreadPoolWorker>, funcName = 0x7efcd0b0fd0b "virNetServerHandleJob", worker = true, opaque = 0x556177d06140}
>#17 0x00007efccdabddd5 in start_thread (arg=0x7efcbdc92700) at pthread_create.c:307
>        __res = <optimized out>
>        pd = 0x7efcbdc92700
>        now = <optimized out>
>        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {139623980934912, -5104798514948361870, 0, 8392704, 0, 139623980934912, 4958858318971908466, 4958893767482782066}, 
>              mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
>        not_first_call = <optimized out>
>        pagesize_m1 = <optimized out>
>        sp = <optimized out>
>        freesize = <optimized out>
>#18 0x00007efccd7e6e9d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111
>No locals.
>
>Thread 11 (Thread 0x7efcbd491700 (LWP 16893)):
>#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
>No locals.
>#1  0x00007efcd08f9e16 in virCondWait (c=c@entry=0x556177d06bc8, m=m@entry=0x556177d06b00) at util/virthread.c:154
>        ret = <optimized out>
>#2  0x00007efcd08fa86b in virThreadPoolWorker (opaque=opaque@entry=0x556177cfa980) at util/virthreadpool.c:124
>        data = 0x0
>        pool = 0x556177d06ac0
>        cond = 0x556177d06bc8
>        priority = true
>        curWorkers = 0x556177d06bb8
>        maxLimit = 0x556177d06bb0
>        job = 0x0
>#3  0x00007efcd08f9ba8 in virThreadHelper (data=<optimized out>) at util/virthread.c:206
>        args = 0x0
>        local = {func = 0x7efcd08fa740 <virThreadPoolWorker>, funcName = 0x7efcd0b0fd0b "virNetServerHandleJob", worker = true, opaque = 0x556177cfa980}
>#4  0x00007efccdabddd5 in start_thread (arg=0x7efcbd491700) at pthread_create.c:307
>        __res = <optimized out>
>        pd = 0x7efcbd491700
>        now = <optimized out>
>        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {139623972542208, -5104798514948361870, 0, 8392704, 0, 139623972542208, 4958857218923409778, 4958893767482782066}, 
>              mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
>        not_first_call = <optimized out>
>        pagesize_m1 = <optimized out>
>        sp = <optimized out>
>        freesize = <optimized out>
>#5  0x00007efccd7e6e9d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111
>No locals.
>
>Thread 10 (Thread 0x7efcbcc90700 (LWP 16894)):
>#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
>No locals.
>#1  0x00007efcd08f9e16 in virCondWait (c=c@entry=0x556177d06bc8, m=m@entry=0x556177d06b00) at util/virthread.c:154
>        ret = <optimized out>
>#2  0x00007efcd08fa86b in virThreadPoolWorker (opaque=opaque@entry=0x556177d061b0) at util/virthreadpool.c:124
>        data = 0x0
>        pool = 0x556177d06ac0
>        cond = 0x556177d06bc8
>        priority = true
>        curWorkers = 0x556177d06bb8
>        maxLimit = 0x556177d06bb0
>        job = 0x0
>#3  0x00007efcd08f9ba8 in virThreadHelper (data=<optimized out>) at util/virthread.c:206
>        args = 0x0
>        local = {func = 0x7efcd08fa740 <virThreadPoolWorker>, funcName = 0x7efcd0b0fd0b "virNetServerHandleJob", worker = true, opaque = 0x556177d061b0}
>#4  0x00007efccdabddd5 in start_thread (arg=0x7efcbcc90700) at pthread_create.c:307
>        __res = <optimized out>
>        pd = 0x7efcbcc90700
>        now = <optimized out>
>        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {139623964149504, -5104798514948361870, 0, 8392704, 0, 139623964149504, 4958856118874911090, 4958893767482782066}, 
>              mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
>        not_first_call = <optimized out>
>        pagesize_m1 = <optimized out>
>        sp = <optimized out>
>        freesize = <optimized out>
>#5  0x00007efccd7e6e9d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111
>No locals.
>
>Thread 9 (Thread 0x7efca6357700 (LWP 16895)):
>#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
>No locals.
>#1  0x00007efcd08f9e16 in virCondWait (c=c@entry=0x556177d60c38, m=m@entry=0x556177d60c10) at util/virthread.c:154
>        ret = <optimized out>
>#2  0x00007efcd08fa8d3 in virThreadPoolWorker (opaque=opaque@entry=0x556177d60940) at util/virthreadpool.c:124
>        data = 0x0
>        pool = 0x556177d60bd0
>        cond = 0x556177d60c38
>        priority = false
>        curWorkers = 0x556177d60cb0
>        maxLimit = 0x556177d60c98
>        job = 0x0
>#3  0x00007efcd08f9ba8 in virThreadHelper (data=<optimized out>) at util/virthread.c:206
>        args = 0x0
>        local = {func = 0x7efcd08fa740 <virThreadPoolWorker>, funcName = 0x7efcd0b0fd0b "virNetServerHandleJob", worker = true, opaque = 0x556177d60940}
>#4  0x00007efccdabddd5 in start_thread (arg=0x7efca6357700) at pthread_create.c:307
>        __res = <optimized out>
>        pd = 0x7efca6357700
>        now = <optimized out>
>        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {139623585380096, -5104798514948361870, 0, 8392704, 0, 139623585380096, 4958833342126469490, 4958893767482782066}, 
>              mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
>        not_first_call = <optimized out>
>        pagesize_m1 = <optimized out>
>        sp = <optimized out>
>        freesize = <optimized out>
>#5  0x00007efccd7e6e9d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111
>No locals.
>
>Thread 8 (Thread 0x7efca5b56700 (LWP 16896)):
>#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
>No locals.
>#1  0x00007efcd08f9e16 in virCondWait (c=c@entry=0x556177d60c38, m=m@entry=0x556177d60c10) at util/virthread.c:154
>        ret = <optimized out>
>#2  0x00007efcd08fa8d3 in virThreadPoolWorker (opaque=opaque@entry=0x556177d5f0e0) at util/virthreadpool.c:124
>        data = 0x0
>        pool = 0x556177d60bd0
>        cond = 0x556177d60c38
>        priority = false
>        curWorkers = 0x556177d60cb0
>        maxLimit = 0x556177d60c98
>        job = 0x0
>#3  0x00007efcd08f9ba8 in virThreadHelper (data=<optimized out>) at util/virthread.c:206
>        args = 0x0
>        local = {func = 0x7efcd08fa740 <virThreadPoolWorker>, funcName = 0x7efcd0b0fd0b "virNetServerHandleJob", worker = true, opaque = 0x556177d5f0e0}
>#4  0x00007efccdabddd5 in start_thread (arg=0x7efca5b56700) at pthread_create.c:307
>        __res = <optimized out>
>        pd = 0x7efca5b56700
>        now = <optimized out>
>        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {139623576987392, -5104798514948361870, 0, 8392704, 0, 139623576987392, 4958841038170993010, 4958893767482782066}, 
>              mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
>        not_first_call = <optimized out>
>        pagesize_m1 = <optimized out>
>        sp = <optimized out>
>        freesize = <optimized out>
>#5  0x00007efccd7e6e9d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111
>No locals.
>
>Thread 7 (Thread 0x7efca5355700 (LWP 16897)):
>#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
>No locals.
>#1  0x00007efcd08f9e16 in virCondWait (c=c@entry=0x556177d60c38, m=m@entry=0x556177d60c10) at util/virthread.c:154
>        ret = <optimized out>
>#2  0x00007efcd08fa8d3 in virThreadPoolWorker (opaque=opaque@entry=0x556177d60460) at util/virthreadpool.c:124
>        data = 0x0
>        pool = 0x556177d60bd0
>        cond = 0x556177d60c38
>        priority = false
>        curWorkers = 0x556177d60cb0
>        maxLimit = 0x556177d60c98
>        job = 0x0
>#3  0x00007efcd08f9ba8 in virThreadHelper (data=<optimized out>) at util/virthread.c:206
>        args = 0x0
>        local = {func = 0x7efcd08fa740 <virThreadPoolWorker>, funcName = 0x7efcd0b0fd0b "virNetServerHandleJob", worker = true, opaque = 0x556177d60460}
>#4  0x00007efccdabddd5 in start_thread (arg=0x7efca5355700) at pthread_create.c:307
>        __res = <optimized out>
>        pd = 0x7efca5355700
>        now = <optimized out>
>        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {139623568594688, -5104798514948361870, 0, 8392704, 0, 139623568594688, 4958839938122494322, 4958893767482782066}, 
>              mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
>        not_first_call = <optimized out>
>        pagesize_m1 = <optimized out>
>        sp = <optimized out>
>        freesize = <optimized out>
>#5  0x00007efccd7e6e9d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111
>No locals.
>
>Thread 6 (Thread 0x7efca4b54700 (LWP 16898)):
>#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
>No locals.
>#1  0x00007efcd08f9e16 in virCondWait (c=c@entry=0x556177d60c38, m=m@entry=0x556177d60c10) at util/virthread.c:154
>        ret = <optimized out>
>#2  0x00007efcd08fa8d3 in virThreadPoolWorker (opaque=opaque@entry=0x556177d5f170) at util/virthreadpool.c:124
>        data = 0x0
>        pool = 0x556177d60bd0
>        cond = 0x556177d60c38
>        priority = false
>        curWorkers = 0x556177d60cb0
>        maxLimit = 0x556177d60c98
>        job = 0x0
>#3  0x00007efcd08f9ba8 in virThreadHelper (data=<optimized out>) at util/virthread.c:206
>        args = 0x0
>        local = {func = 0x7efcd08fa740 <virThreadPoolWorker>, funcName = 0x7efcd0b0fd0b "virNetServerHandleJob", worker = true, opaque = 0x556177d5f170}
>#4  0x00007efccdabddd5 in start_thread (arg=0x7efca4b54700) at pthread_create.c:307
>        __res = <optimized out>
>        pd = 0x7efca4b54700
>        now = <optimized out>
>        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {139623560201984, -5104798514948361870, 0, 8392704, 0, 139623560201984, 4958838838073995634, 4958893767482782066}, 
>              mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
>        not_first_call = <optimized out>
>        pagesize_m1 = <optimized out>
>        sp = <optimized out>
>        freesize = <optimized out>
>#5  0x00007efccd7e6e9d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111
>No locals.
>
>Thread 5 (Thread 0x7efc7f329700 (LWP 16899)):
>#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
>No locals.
>#1  0x00007efcd08f9e16 in virCondWait (c=c@entry=0x556177d60c38, m=m@entry=0x556177d60c10) at util/virthread.c:154
>        ret = <optimized out>
>#2  0x00007efcd08fa8d3 in virThreadPoolWorker (opaque=opaque@entry=0x556177d5f0e0) at util/virthreadpool.c:124
>        data = 0x0
>        pool = 0x556177d60bd0
>        cond = 0x556177d60c38
>        priority = false
>        curWorkers = 0x556177d60cb0
>        maxLimit = 0x556177d60c98
>        job = 0x0
>#3  0x00007efcd08f9ba8 in virThreadHelper (data=<optimized out>) at util/virthread.c:206
>        args = 0x0
>        local = {func = 0x7efcd08fa740 <virThreadPoolWorker>, funcName = 0x7efcd0b0fd0b "virNetServerHandleJob", worker = true, opaque = 0x556177d5f0e0}
>#4  0x00007efccdabddd5 in start_thread (arg=0x7efc7f329700) at pthread_create.c:307
>        __res = <optimized out>
>        pd = 0x7efc7f329700
>        now = <optimized out>
>        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {139622930880256, -5104798514948361870, 0, 8392704, 0, 139622930880256, 4958712405511090546, 4958893767482782066}, 
>              mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
>        not_first_call = <optimized out>
>        pagesize_m1 = <optimized out>
>        sp = <optimized out>
>        freesize = <optimized out>
>#5  0x00007efccd7e6e9d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111
>No locals.
>
>Thread 4 (Thread 0x7efc7e327700 (LWP 16945)):
>#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
>No locals.
>#1  0x00007efcd08f9e16 in virCondWait (c=c@entry=0x7efc6c0f6720, m=m@entry=0x7efc6c0f66e0) at util/virthread.c:154
>        ret = <optimized out>
>#2  0x00007efca73d7148 in udevEventHandleThread (opaque=<optimized out>) at node_device/node_device_udev.c:1606
>        priv = 0x7efc6c0f66d0
>        device = <optimized out>
>        __FUNCTION__ = "udevEventHandleThread"
>#3  0x00007efcd08f9bd2 in virThreadHelper (data=<optimized out>) at util/virthread.c:206
>        args = 0x0
>        local = {func = 0x7efca73d7100 <udevEventHandleThread>, funcName = 0x7efca73de6de "udevEventHandleThread", worker = false, opaque = 0x0}
>#4  0x00007efccdabddd5 in start_thread (arg=0x7efc7e327700) at pthread_create.c:307
>        __res = <optimized out>
>        pd = 0x7efc7e327700
>        now = <optimized out>
>        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {139622914094848, -5104798514948361870, 0, 8392704, 0, 139622914094848, 4958710205414093170, 4958893767482782066}, 
>              mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
>        not_first_call = <optimized out>
>        pagesize_m1 = <optimized out>
>        sp = <optimized out>
>        freesize = <optimized out>
>#5  0x00007efccd7e6e9d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111
>No locals.
>
>Thread 3 (Thread 0x7efc7db26700 (LWP 17635)):
>#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
>No locals.
>#1  0x00007efcd08f9e16 in virCondWait (c=c@entry=0x7efc6c5495f8, m=m@entry=0x7efc6c5495d0) at util/virthread.c:154
>        ret = <optimized out>
>#2  0x00007efcd08fa8d3 in virThreadPoolWorker (opaque=opaque@entry=0x556177d63ce0) at util/virthreadpool.c:124
>        data = 0x0
>        pool = 0x7efc6c549590
>        cond = 0x7efc6c5495f8
>        priority = false
>        curWorkers = 0x7efc6c549670
>        maxLimit = 0x7efc6c549658
>        job = 0x0
>#3  0x00007efcd08f9ba8 in virThreadHelper (data=<optimized out>) at util/virthread.c:206
>        args = 0x0
>        local = {func = 0x7efcd08fa740 <virThreadPoolWorker>, funcName = 0x7efca691d0a0 "qemuProcessEventHandler", worker = true, opaque = 0x556177d63ce0}
>#4  0x00007efccdabddd5 in start_thread (arg=0x7efc7db26700) at pthread_create.c:307
>        __res = <optimized out>
>        pd = 0x7efc7db26700
>        now = <optimized out>
>        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {139622905702144, -5104798514948361870, 0, 8392704, 3, 139622905702144, 4958717901458616690, 4958893767482782066}, 
>              mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
>        not_first_call = <optimized out>
>        pagesize_m1 = <optimized out>
>        sp = <optimized out>
>        freesize = <optimized out>
>#5  0x00007efccd7e6e9d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111
>No locals.
>
>Thread 2 (Thread 0x7efc7eb28700 (LWP 18286)):
>#0  0x00007efccd7dc1fd in poll () at ../sysdeps/unix/syscall-template.S:81
>No locals.
>#1  0x00007efccd80094e in __poll_chk (fds=<optimized out>, nfds=<optimized out>, timeout=<optimized out>, fdslen=<optimized out>) at poll_chk.c:27
>No locals.
>#2  0x00007efcd0886ef2 in poll (__timeout=-1, __nfds=1, __fds=0x7efc7eb278e0) at /usr/include/bits/poll2.h:41
>No locals.
>#3  virCommandProcessIO (cmd=cmd@entry=0x7efca8000bc0) at util/vircommand.c:2085
>        i = <optimized out>
>        fds = {{fd = 29, events = 1, revents = 0}, {fd = 0, events = 0, revents = 0}, {fd = 1817539428, events = 32508, revents = 0}}
>        nfds = 1
>        outfd = -1
>        errfd = 29
>        inlen = 0
>        outlen = 0
>        errlen = 231
>        inoff = 0
>        ret = <optimized out>
>        __func__ = "virCommandProcessIO"
>        __FUNCTION__ = "virCommandProcessIO"
>#4  0x00007efcd0887389 in virCommandDoAsyncIOHelper (opaque=0x7efca8000bc0) at util/vircommand.c:2359
>        cmd = 0x7efca8000bc0
>#5  0x00007efcd08f9bd2 in virThreadHelper (data=<optimized out>) at util/virthread.c:206
>        args = 0x0
>        local = {func = 0x7efcd0887380 <virCommandDoAsyncIOHelper>, funcName = 0x7efcd0abcfcc "virCommandDoAsyncIOHelper", worker = false, opaque = 0x7efca8000bc0}
>#6  0x00007efccdabddd5 in start_thread (arg=0x7efc7eb28700) at pthread_create.c:307
>        __res = <optimized out>
>        pd = 0x7efc7eb28700
>        now = <optimized out>
>        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {139622922487552, -5104798514948361870, 0, 8392704, 3, 139622922487552, 4958711305462591858, 4958893767482782066}, 
>              mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
>        not_first_call = <optimized out>
>        pagesize_m1 = <optimized out>
>        sp = <optimized out>
>        freesize = <optimized out>
>#7  0x00007efccd7e6e9d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111
>No locals.
>
>Thread 1 (Thread 0x7efcd13af8c0 (LWP 16884)):
>#0  0x00007efccd7dc1fd in poll () at ../sysdeps/unix/syscall-template.S:81
>No locals.
>#1  0x00007efcd089aa36 in poll (__timeout=4999, __nfds=14, __fds=<optimized out>) at /usr/include/bits/poll2.h:46
>No locals.
>#2  virEventPollRunOnce () at util/vireventpoll.c:641
>        fds = 0x556177d64230
>        ret = <optimized out>
>        timeout = 4999
>        nfds = 14
>        __func__ = "virEventPollRunOnce"
>        __FUNCTION__ = "virEventPollRunOnce"
>#3  0x00007efcd0899512 in virEventRunDefaultImpl () at util/virevent.c:327
>        __func__ = "virEventRunDefaultImpl"
>#4  0x00007efcd09c2b9d in virNetDaemonRun (dmn=dmn@entry=0x556177d06640) at rpc/virnetdaemon.c:850
>        timerid = -1
>        timerActive = false
>        __FUNCTION__ = "virNetDaemonRun"
>        __func__ = "virNetDaemonRun"
>#5  0x0000556176ca9019 in main (argc=<optimized out>, argv=<optimized out>) at remote/remote_daemon.c:1483
>        dmn = 0x556177d06640
>        srv = 0x556177d06cb0
>        srvAdm = 0x556177d60a00
>        adminProgram = 0x556177d60480
>        lxcProgram = 0x556177d605e0
>        remote_config_file = 0x556177d05730 "/etc/libvirt/libvirtd.conf"
>        statuswrite = -1
>        ret = 1
>        pid_file_fd = 5
>        pid_file = 0x556177d06450 "/var/run/libvirtd.pid"
>        sock_file = 0x556177d120d0 "/var/run/libvirt/libvirt-sock"
>        sock_file_ro = 0x556177d12050 "/var/run/libvirt/libvirt-sock-ro"
>        sock_file_adm = 0x556177d11fd0 "/var/run/libvirt/libvirt-admin-sock"
>        timeout = -1
>        verbose = 0
>        godaemon = 0
>        ipsock = 108
>        config = 0x556177d01c60
>        privileged = <optimized out>
>        implicit_conf = <optimized out>
>        run_dir = 0x556177d063e0 "/var/run/libvirt"
>        old_umask = <optimized out>
>        opts = {{name = 0x556176cddc38 "verbose", has_arg = 0, flag = 0x7ffdd32c06f0, val = 118}, {name = 0x556176cddc40 "daemon", has_arg = 0, flag = 0x7ffdd32c06f4, 
>            val = 100}, {name = 0x556176cddc47 "listen", has_arg = 0, flag = 0x7ffdd32c06f8, val = 108}, {name = 0x556176cddd21 "config", has_arg = 1, flag = 0x0, 
>            val = 102}, {name = 0x556176cddc9d "timeout", has_arg = 1, flag = 0x0, val = 116}, {name = 0x556176cddc4e "pid-file", has_arg = 1, flag = 0x0, val = 112}, {
>            name = 0x556176cddc57 "version", has_arg = 0, flag = 0x0, val = 86}, {name = 0x556176cddc5f "help", has_arg = 0, flag = 0x0, val = 104}, {name = 0x0, 
>            has_arg = 0, flag = 0x0, val = 0}}
>        __func__ = "main"

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Attachments on bug 1149445: 1447777