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Red Hat Bugzilla – Attachment 918333 Details for
Bug 1120042
Segmentation fault at block/qcow2-cluster.c:462
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gdb bt full
gdb_bt_full (text/plain), 6.56 KB, created by
Xu Han
on 2014-07-16 06:40:12 UTC
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hide
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Description:
gdb bt full
Filename:
MIME Type:
Creator:
Xu Han
Created:
2014-07-16 06:40:12 UTC
Size:
6.56 KB
patch
obsolete
>#0 0x00007f3b9b3dc2a9 in qcow2_get_cluster_offset (bs=0x7f3b9c71d010, offset=14505934848, num=0x7f3b9f96e73c, cluster_offset=0x7f3b9f96e730) > at /usr/src/debug/qemu-kvm-0.12.1.2/block/qcow2-cluster.c:462 > s = 0x7f3b9c3b19f0 > l2_index = <value optimized out> > l1_index = 27 > l2_offset = <error reading variable l2_offset (Cannot access memory at address 0xd8)> > l2_table = <value optimized out> > l1_bits = <value optimized out> > c = <value optimized out> > index_in_cluster = 0 > nb_available = 1028224 > nb_needed = 64 > ret = <value optimized out> >#1 0x00007f3b9b3d7fe1 in qcow2_co_readv (bs=0x7f3b9c71d010, sector_num=<value optimized out>, remaining_sectors=64, qiov=0x7f3b9f96e8b0) > at /usr/src/debug/qemu-kvm-0.12.1.2/block/qcow2.c:544 > s = 0x7f3b9c3b19f0 > index_in_cluster = <value optimized out> > n1 = <value optimized out> > ret = <value optimized out> > cur_nr_sectors = 64 > cluster_offset = 0 > bytes_done = <value optimized out> > hd_qiov = { > iov = 0x7f3b9dab81e0, > niov = 0, > nalloc = 1, > size = 0 > } > cluster_data = <value optimized out> > __PRETTY_FUNCTION__ = "qcow2_co_readv" >#2 0x00007f3b9b3bb59f in bdrv_co_do_readv (bs=0x7f3b9c71d010, sector_num=28331904, nb_sectors=64, qiov=0x7f3b9f96e8b0, flags=<value optimized out>) > at /usr/src/debug/qemu-kvm-0.12.1.2/block.c:2205 > drv = 0x7f3b9b89b740 > req = { > bs = 0x7f3b9c71d010, > sector_num = 28331904, > nb_sectors = 64, > is_write = false, > list = { > le_next = 0x0, > le_prev = 0x7f3b9c71d9d8 > }, > co = 0x7f3b9f812af0, > wait_queue = { > entries = { > tqh_first = 0x0, > tqh_last = 0x7f3b9f96e7e0 > } > } > } > ret = <value optimized out> >#3 0x00007f3b9b3bbbce in bdrv_rw_co_entry (opaque=0x7f3b9f96e880) at /usr/src/debug/qemu-kvm-0.12.1.2/block.c:1885 > rwco = 0x7f3b9f96e880 >#4 0x00007f3b9b3bdad8 in bdrv_rw_co (bs=0x7f3b9c71d010, sector_num=<value optimized out>, buf=<value optimized out>, nb_sectors=<value optimized out>, > is_write=<value optimized out>) at /usr/src/debug/qemu-kvm-0.12.1.2/block.c:1929 > qiov = { > iov = 0x7f3b9f96e8d0, > niov = 1, > nalloc = -1, > size = 32768 > } > iov = { > iov_base = 0x7f3b9db28c20, > iov_len = 32768 > } > co = <value optimized out> > rwco = { > bs = 0x7f3b9c71d010, > sector_num = 28331904, > nb_sectors = 64, > qiov = 0x7f3b9f96e8b0, > is_write = false, > ret = 2147483647 > } >#5 0x00007f3b9b3dd737 in qcow2_read (bs=0x7f3b9c3b1010, start_sect=<value optimized out>, cluster_offset=9894494208, n_start=0, n_end=<value optimized out>) > at /usr/src/debug/qemu-kvm-0.12.1.2/block/qcow2-cluster.c:339 > s = 0x7f3b9c7099f0 > ret = <value optimized out> > cluster_offset = 0 > index_in_cluster = <value optimized out> > n = 64 > n1 = <value optimized out> > iov = { > iov_base = 0x7f3b9db28c20, > iov_len = 32768 > } > qiov = { > iov = 0x7f3b9f96e980, > niov = 1, > nalloc = -1, > size = 32768 > } >#6 copy_sectors (bs=0x7f3b9c3b1010, start_sect=<value optimized out>, cluster_offset=9894494208, n_start=0, n_end=<value optimized out>) > at /usr/src/debug/qemu-kvm-0.12.1.2/block/qcow2-cluster.c:382 > s = 0x7f3b9c7099f0 > n = 64 > ret = <value optimized out> >#7 0x00007f3b9b3dd930 in qcow2_alloc_cluster_link_l2 (bs=0x7f3b9c3b1010, m=0x7f3b9f96eab0) at /usr/src/debug/qemu-kvm-0.12.1.2/block/qcow2-cluster.c:663 > s = 0x7f3b9c7099f0 > i = <value optimized out> > j = 0 > l2_index = <value optimized out> > ret = <value optimized out> > old_cluster = 0x7f3b9da575d0 > start_sect = 28331904 > l2_offset = 139894004423304 > l2_table = <value optimized out> > cluster_offset = 9894494208 > cow = true >#8 0x00007f3b9b3d794f in qcow2_co_writev (bs=0x7f3b9c3b1010, sector_num=<value optimized out>, remaining_sectors=520, qiov=0x7f3b9cba5f08) > at /usr/src/debug/qemu-kvm-0.12.1.2/block/qcow2.c:753 > s = 0x7f3b9c7099f0 > index_in_cluster = 64 > n_end = <value optimized out> > ret = <value optimized out> > cur_nr_sectors = 520 > cluster_offset = <value optimized out> > hd_qiov = { > iov = 0x7f3b9d0827f0, > niov = 65, > nalloc = 65, > size = 266240 > } > bytes_done = <value optimized out> > cluster_data = 0x0 > l2meta = { > offset = 14505967616, > cluster_offset = 9894494208, > n_start = 64, > nb_available = 584, > nb_clusters = 5, > depends_on = 0x0, > dependent_requests = { > entries = { > tqh_first = 0x7f3b9f0da4f0, > tqh_last = 0x7f3b9f0da518 > } > }, > next_in_flight = { > le_next = 0x0, > le_prev = 0x7f3b9ed66088 > } > } > __PRETTY_FUNCTION__ = "qcow2_co_writev" >#9 0x00007f3b9b3bba53 in bdrv_co_do_writev (bs=0x7f3b9c3b1010, sector_num=28331968, nb_sectors=520, qiov=0x7f3b9cba5f08, flags=<value optimized out>) > at /usr/src/debug/qemu-kvm-0.12.1.2/block.c:2321 > drv = 0x7f3b9b89b740 > req = { > bs = 0x7f3b9c3b1010, > sector_num = 28331968, > nb_sectors = 520, > is_write = true, > list = { > le_next = 0x7f3b9ed66110, > le_prev = 0x7f3b9f236588 > }, > co = 0x7f3b9f812af0, > wait_queue = { > entries = { > tqh_first = 0x0, > tqh_last = 0x7f3b9f96eba0 > } > } > } > ret = <value optimized out> >#10 0x00007f3b9b3bbb11 in bdrv_co_do_rw (opaque=<value optimized out>) at /usr/src/debug/qemu-kvm-0.12.1.2/block.c:4057 > acb = 0x7f3b9d15ef40 > bs = <value optimized out> >#11 0x00007f3b9b3c52eb in coroutine_trampoline (i0=<value optimized out>, i1=<value optimized out>) at /usr/src/debug/qemu-kvm-0.12.1.2/coroutine-ucontext.c:129 > self = 0x7f3b9f812af0 > co = 0x7f3b9f812af0 >#12 0x00007f3b97e39bf0 in ?? () from /lib64/libc.so.6 >No symbol table info available. >#13 0x00007fff44bcb670 in ?? () >No symbol table info available. >#14 0x0000000000000000 in ?? () >No symbol table info available. >
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bug 1120042
: 918333