Bug 1372192
| Summary: | spice: dead-lock when 'quit' | ||
|---|---|---|---|
| Product: | Red Hat Enterprise Linux 7 | Reporter: | Marcel Kolaja <mkolaja> |
| Component: | qemu-kvm-rhev | Assignee: | Marc-Andre Lureau <marcandre.lureau> |
| Status: | CLOSED CURRENTRELEASE | QA Contact: | Guo, Zhiyi <zhguo> |
| Severity: | medium | Docs Contact: | |
| Priority: | high | ||
| Version: | 7.3 | CC: | amit.shah, armbru, chayang, dgilbert, jherrman, jinzhao, juzhang, knoel, marcandre.lureau, quintela, virt-maint, xfu, yduan |
| Target Milestone: | rc | Keywords: | ZStream |
| Target Release: | --- | ||
| Hardware: | x86_64 | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | qemu-kvm-rhev-2.3.0-31.el7_2.24 | Doc Type: | Bug Fix |
| Doc Text: |
Previously, attempting to shut down a guest virtual machine that was using SPICE audio caused the guest to enter a deadlock state. This update improves the ordering of clean-up actions when exiting a guest, and guests using SPICE audio now shut down correctly.
|
Story Points: | --- |
| Clone Of: | 1355704 | Environment: | |
| Last Closed: | 2020-05-06 11:21:32 UTC | Type: | --- |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
| Embargoed: | |||
| Bug Depends On: | 1355704 | ||
| Bug Blocks: | |||
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Description
Marcel Kolaja
2016-09-01 07:05:09 UTC
Hang reproducible with similar instructions to parent bug:
run a VM with spice+audio, connect a spice client, and shutdown the VM.
(gdb) bt
#0 0x00007ffff6bbaafd in __lll_lock_wait () at ../sysdeps/unix/sysv/linux/x86_64/lowlevellock.S:135
#1 0x00007ffff6bb4a0d in __GI___pthread_mutex_lock (mutex=0x555556348f60) at ../nptl/pthread_mutex_lock.c:80
#2 0x0000555555993382 in qemu_mutex_lock (mutex=0x555556348f60) at util/qemu-thread-posix.c:73
#3 0x000055555572ac0d in qemu_chr_fe_write (s=0x555556348f60, buf=0x55555634a200 "{\"timestamp\": {\"seconds\": 1479479972, \"microseconds\": 207986}, \"event\": \"SPICE_DISCONNECTED\", \"data\": {\"server\": {\"port\": \"5910\", \"family\": \"ipv4\", \"host\": \"127.0.0.1\"}, \"client\": {\"port\": \"39712\", \"f"..., len=240) at qemu-char.c:219
#4 0x0000555555621eed in monitor_flush_locked (mon=0x5555564de7f0) at /home/elmarco/src/qemu/monitor.c:308
#5 0x0000555555622086 in monitor_puts (mon=0x5555564de7f0, str=0x55555634869f "") at /home/elmarco/src/qemu/monitor.c:350
#6 0x000055555562239f in monitor_json_emitter (mon=0x5555564de7f0, data=0x5555564e6c00) at /home/elmarco/src/qemu/monitor.c:416
#7 0x00005555556225b7 in monitor_qapi_event_emit (event=QAPI_EVENT_SPICE_DISCONNECTED, data=0x5555564e6c00) at /home/elmarco/src/qemu/monitor.c:478
#8 0x000055555562268d in monitor_qapi_event_queue (event=QAPI_EVENT_SPICE_DISCONNECTED, data=0x5555564e6c00, errp=0x7fffffffd308) at /home/elmarco/src/qemu/monitor.c:504
#9 0x0000555555983993 in qapi_event_send_spice_disconnected (server=0x5555575907f0, client=0x555556c63580, errp=0x5555562b3ae8 <error_abort>) at qapi-event.c:1270
#10 0x00005555558be1e5 in channel_event (event=3, info=0x555556c61550) at ui/spice-core.c:244
#11 0x00007fffdb9e793a in reds_handle_channel_event (reds=<optimized out>, event=event@entry=3, info=info@entry=0x555556c61550) at reds.c:325
#12 0x00007fffdb9cfed3 in main_dispatcher_channel_event (info=0x555556c61550, event=3, self=0x555556357880 [MainDispatcher]) at main-dispatcher.c:175
#13 0x00007fffdb9cfed3 in main_dispatcher_channel_event (self=0x555556357880 [MainDispatcher], event=event@entry=3, info=0x555556c61550) at main-dispatcher.c:194
#14 0x00007fffdb9f0176 in reds_stream_push_channel_event (s=s@entry=0x555557d97e30, event=event@entry=3) at reds-stream.c:354
#15 0x00007fffdb9f01ab in reds_stream_free (s=0x555557d97e30) at reds-stream.c:323
#16 0x00007fffdb9f9783 in snd_disconnect_channel (channel=0x5555583229d0) at sound.c:229
#17 0x00007fffdb9f9da6 in snd_detach_common (worker=0x555556fff6d0) at sound.c:1589
#18 0x00007fffdb9fcba1 in snd_detach_playback (sin=sin@entry=0x555556fff688) at sound.c:1602
#19 0x00007fffdb9eb7d8 in spice_server_remove_interface (sin=0x555556fff688) at reds.c:3405
#20 0x00005555557678e4 in line_out_fini (hw=0x555556fff600) at audio/spiceaudio.c:148
#21 0x00005555557614af in audio_atexit () at audio/audio.c:1787
#22 0x00007fffda94b258 in __run_exit_handlers (status=0, listp=0x7fffdacce5d8 <__exit_funcs>, run_list_atexit=run_list_atexit@entry=true) at exit.c:82
#23 0x00007fffda94b2a5 in __GI_exit (status=<optimized out>) at exit.c:104
#24 0x00007fffda932738 in __libc_start_main (main=0x55555573beb3 <main>, argc=20, argv=0x7fffffffd668, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fffffffd658) at ../csu/libc-start.c:323
#25 0x00005555555ec309 in _start ()
Fix included in qemu-kvm-rhev-2.3.0-31.el7_2.24 Hi Marc, Test against rhel7.2.z guest & host with kernel kernel-3.10.0-327.44.2.el7.x86_64 and buggy qemu-kvm-rhev-2.3.0-31.el7_2.23.x86_64, qemu will hang after executing quit from qmp, following steps from https://bugzilla.redhat.com/show_bug.cgi?id=1355704#c16 I give 10 trials and no qemu core dump happen. Test against fixed qemu-kvm-rhev-2.3.0-31.el7_2.24.x86_64 and same steps, qemu can quit normally. Did this phenomenon lead to bug fixed? BR/ Guo, Zhiyi (In reply to Guo, Zhiyi from comment #6) > Test against fixed qemu-kvm-rhev-2.3.0-31.el7_2.24.x86_64 and same steps, > qemu can quit normally. > Did this phenomenon lead to bug fixed? yes (as said in comment 3, it is a hang fix) thanks |