Yes it happens with and without -vnc qemu cmdline
Nicolas
2012/9/5 Alon Levy <al...@redhat.com>:
>> and with all threads :
>>
>> bego3 ~ # cat /storage/tmp/log6
>> warning: Unable to find libthread_db matching inferior's thread
>> library, thread debugging will not be available.
>> Core was generated by `/usr/local/bin/qemu -name xpvirtser001
>> -readconfig /etc/ich9-ehci-uhci.cfg -dev'.
>> Program terminated with signal 11, Segmentation fault.
>> #0 ring_add (item=<optimized out>, ring=<optimized out>) at
>> ../spice-common/common/ring.h:61
>> 61 ring->next = item->next->prev = item;
>> (gdb) thread apply all bt
>>
>> Thread 5 (LWP 3065):
>> #0 0x00007f9036826033 in select () from /lib/libc.so.6
>> #1 0x00007f90395409d8 in os_host_main_loop_wait (timeout=4294967295)
>> at main-loop.c:308
>> #2 main_loop_wait (nonblocking=<optimized out>) at main-loop.c:496
>> #3 0x00007f903953ffa2 in main_loop () at
>> /tmp/qemu-0b3f79b9e9c17e97d8d8179defdb6e03cd9ddc8f/vl.c:1643
>> #4 main (argc=<optimized out>, argv=<optimized out>, envp=<optimized
>> out>) at /tmp/qemu-0b3f79b9e9c17e97d8d8179defdb6e03cd9ddc8f/vl.c:3755
>>
>> Thread 4 (LWP 4885):
>> #0 0x00007f9036ae027b in pthread_cond_timedwait () from
>> /lib/libpthread.so.0
>> #1 0x00007f903954f29a in cond_timedwait (ts=<optimized out>,
>> mutex=<optimized out>, cond=<optimized out>) at
>> posix-aio-compat.c:107
>> #2 aio_thread (unused=<optimized out>) at posix-aio-compat.c:337
>> #3 0x00007f9036adb98c in ?? () from /lib/libpthread.so.0
>> #4 0x00007f903682bfcd in clone () from /lib/libc.so.6
>>
>> Thread 3 (LWP 3180):
>> #0 0x00007f9036adfefc in pthread_cond_wait () from
>> /lib/libpthread.so.0
>> #1 0x00007f903956c62a in qemu_cond_wait (cond=0x7f903b6f4114,
>> mutex=0x80) at qemu-thread-posix.c:113
>> #2 0x00007f903959aac6 in vnc_worker_thread_loop
>> (queue=0x7f903b6f4110) at ui/vnc-jobs.c:222
>> #3 0x00007f903959af21 in vnc_worker_thread (arg=<optimized out>) at
>> ui/vnc-jobs.c:318
>> #4 0x00007f9036adb98c in ?? () from /lib/libpthread.so.0
>> #5 0x00007f903682bfcd in clone () from /lib/libc.so.6
>
> Does this happen if you run without vnc?
>
>>
>> Thread 2 (LWP 3177):
>> #0 0x00007f9036825327 in ioctl () from /lib/libc.so.6
>> #1 0x00007f90395e8c26 in kvm_vcpu_ioctl (env=<optimized out>,
>> type=44672) at
>> /tmp/qemu-0b3f79b9e9c17e97d8d8179defdb6e03cd9ddc8f/kvm-all.c:1648
>> #2 0x00007f90395e98e7 in kvm_cpu_exec (env=0x7f903ae0bb20) at
>> /tmp/qemu-0b3f79b9e9c17e97d8d8179defdb6e03cd9ddc8f/kvm-all.c:1535
>> #3 0x00007f90395a7167 in qemu_kvm_cpu_thread_fn (arg=<optimized
>> out>)
>> at /tmp/qemu-0b3f79b9e9c17e97d8d8179defdb6e03cd9ddc8f/cpus.c:757
>> #4 0x00007f9036adb98c in ?? () from /lib/libpthread.so.0
>> #5 0x00007f903682bfcd in clone () from /lib/libc.so.6
>>
>> Thread 1 (LWP 3178):
>> #0 ring_add (item=<optimized out>, ring=<optimized out>) at
>> ../spice-common/common/ring.h:61
>> #1 ring_add_after (pos=<optimized out>, item=<optimized out>) at
>> ../spice-common/common/ring.h:66
>> #2 __current_add_drawable (pos=<optimized out>, drawable=<optimized
>> out>, worker=<optimized out>) at red_worker.c:2351
>> #3 red_current_add (worker=0x7f903b0298b0, ring=0x7f9010022ef8,
>> drawable=0x7f903b1e91e8) at red_worker.c:3479
>> #4 0x00007f90371c5f13 in red_current_add_qxl
>> (red_drawable=<optimized
>> out>, ring=<optimized out>, worker=<optimized out>,
>> drawable=<optimized out>) at red_worker.c:3612
>> #5 red_process_drawable (group_id=<optimized out>,
>> drawable=<optimized out>, worker=<optimized out>) at
>> red_worker.c:3953
>> #6 red_process_commands (worker=0x7f903b0298b0,
>> max_pipe_size=<optimized out>, ring_is_empty=0x7f90180d5ccc) at
>> red_worker.c:4902
>> #7 0x00007f90371c7fa5 in red_worker_main (arg=<optimized out>)
>> at
>> red_worker.c:11778
>> #8 0x00007f9036adb98c in ?? () from /lib/libpthread.so.0
>> #9 0x00007f903682bfcd in clone () from /lib/libc.so.6
>
> Thanks for the work producing the backtrace, unfortunately I can't think of
> anything at the moment. I'd like to see the history of the ring adds but
> that's of course impossible. Valgrind would be awesome, but it requires
> compiling libssl specifically to avoid a ton of false warnings from valgrind
> (even if you don't use the tls port of spice). See
> http://www.openssl.org/support/faq.html#PROG14 if you are willing to go this
> extra mile.
>
>
>>
>>
>> 2012/9/5 nicolas prochazka <prochazka.nico...@gmail.com>:
>> > Hello,
>> > With the help of Alon, i can produce debug information :
>> >
>> > Core was generated by `/usr/local/bin/qemu -name xpvirtser001
>> > -readconfig /etc/ich9-ehci-uhci.cfg -dev'.
>> > Program terminated with signal 11, Segmentation fault.
>> > #0 ring_add (item=<optimized out>, ring=<optimized out>) at
>> > ../spice-common/common/ring.h:61
>> > 61 ring->next = item->next->prev = item;
>> >
>> >
>> > Regards,
>> > Nicolas
>> >
>> > 2012/9/4 Alon Levy <al...@redhat.com>:
>> >>> hello
>> >>> libspice 0.11.3
>> >>> qemu 1.2rc2
>> >>>
>> >>> In windows XP Guest VM ,
>> >>> Change screensaver ( with small preview windows change)
>> >>> causes a segfault in libspice server .
>> >>>
>> >>> I can always reproduce it ,
>> >>> two logs juste before segfault.
>> >>>
>> >>>
>> >>> usr/local/bin/qemu:11553): SpiceWorker-Debug **:
>> >>> ../spice-common/common/rect.h:91:rect_debug: (0, 0) (194, 21)
>> >>> (/usr/local/bin/qemu:11553): SpiceWorker-Debug **:
>> >>> red_worker.c:2030:red_clear_surface_drawables_from_pipe: surface
>> >>> 19
>> >>> dependent item found 0x7fdb3a46ae10, 0x7fdb3b132150
>> >>> (/usr/local/bin/qemu:11553): SpiceWorker-Debug **:
>> >>> red_worker.c:10258:display_channel_release_item: not pushed (101)
>> >>> (/usr/local/bin/qemu:11553): SpiceWorker-Debug **:
>> >>> red_worker.c:10258:display_channel_release_item: not pushed (101)
>> >>> (/usr/local/bin/qemu:11553): SpiceWorker-Debug **:
>> >>> red_worker.c:10258:display_channel_release_item: not pushed (101)
>> >>> (/usr/local/bin/qemu:11553): SpiceWorker-Debug **:
>> >>> red_worker.c:4593:red_update_area: surface 0: area ==>
>> >>> (/usr/local/bin/qemu:11553): SpiceWorker-Debug **:
>> >>> ../spice-common/common/rect.h:91:rect_debug: (165, 455) (359,
>> >>> 613)
>> >>> (/usr/local/bin/qemu:11553): SpiceWorker-Debug **:
>> >>> red_worker.c:4593:red_update_area: surface 7: area ==>
>> >>> (/usr/local/bin/qemu:11553): SpiceWorker-Debug **:
>> >>> ../spice-common/common/rect.h:91:rect_debug: (5, 0) (199, 158)
>> >>> (/usr/local/bin/qemu:11553): SpiceWorker-Debug **:
>> >>> red_worker.c:2030:red_clear_surface_drawables_from_pipe: surface
>> >>> 7
>> >>> dependent item found 0x7fdb3a46ccb0, 0x7fdb3ac64ce0
>> >>> (/usr/local/bin/qemu:11553): SpiceWorker-Debug **:
>> >>> red_worker.c:10258:display_channel_release_item: not pushed (101)
>> >>> (/usr/local/bin/qemu:11553): SpiceWorker-Debug **:
>> >>> red_worker.c:10258:display_channel_release_item: not pushed (101)
>> >>> (/usr/local/bin/qemu:11553): SpiceWorker-Debug **:
>> >>> red_worker.c:4593:red_update_area: surface 0: area ==>
>> >>> (/usr/local/bin/qemu:11553): SpiceWorker-Debug **:
>> >>> ../spice-common/common/rect.h:91:rect_debug: (168, 437) (339,
>> >>> 452)
>> >>> (/usr/local/bin/qemu:11553): SpiceWorker-Debug **:
>> >>> red_worker.c:4593:red_update_area: surface 19: area ==>
>> >>> (/usr/local/bin/qemu:11553): SpiceWorker-Debug **:
>> >>> ../spice-common/common/rect.h:91:rect_debug: (3, 3) (174, 18)
>> >>> (/usr/local/bin/qemu:11553): SpiceWorker-Debug **:
>> >>> red_worker.c:2030:red_clear_surface_drawables_from_pipe: surface
>> >>> 19
>> >>> dependent item found 0x7fdb3a46c818, 0x7fdb3ac987e0
>> >>> (/usr/local/bin/qemu:11553): SpiceWorker-Debug **:
>> >>> red_worker.c:10258:display_channel_release_item: not pushed (101)
>> >>> (/usr/local/bin/qemu:11553): SpiceWorker-Debug **:
>> >>> red_worker.c:2633:red_display_detach_stream_gracefully: stream
>> >>> 49:
>> >>> upgrade by screenshot. has current 0. box ==>
>> >>> (/usr/local/bin/qemu:11553): SpiceWorker-Debug **:
>> >>> ../spice-common/common/rect.h:91:rect_debug: (257, 265) (409,
>> >>> 377)
>> >>> (/usr/local/bin/qemu:11553): SpiceWorker-Debug **:
>> >>> red_worker.c:4593:red_update_area: surface 0: area ==>
>> >>> (/usr/local/bin/qemu:11553): SpiceWorker-Debug **:
>> >>> ../spice-common/common/rect.h:91:rect_debug: (257, 265) (409,
>> >>> 377)
>> >>> (/usr/local/bin/qemu:11553): SpiceWorker-Debug **:
>> >>> red_worker.c:2674:red_detach_streams_behind: stream 49
>> >>> (/usr/local/bin/qemu:11553): Spice-Debug **:
>> >>> red_dispatcher.c:309:async_command_alloc: 0x7fdaa007f4b0
>> >>> (/usr/local/bin/qemu:11553): SpiceWorker-Debug **:
>> >>> red_worker.c:10258:display_channel_release_item: not pushed (101)
>> >>> (/usr/local/bin/qemu:11553): SpiceWorker-Debug **:
>> >>> red_worker.c:4593:red_update_area: surface 7: area ==>
>> >>> (/usr/local/bin/qemu:11553): SpiceWorker-Debug **:
>> >>> ../spice-common/common/rect.h:91:rect_debug: (0, 0) (32, 32)
>> >>> (/usr/local/bin/qemu:11553): SpiceWorker-Debug **:
>> >>> red_worker.c:11443:worker_handle_dispatcher_async_done:
>> >>> (/usr/local/bin/qemu:11553): Spice-Debug **:
>> >>> red_dispatcher.c:960:red_dispatcher_async_complete:
>> >>> 0x7fdaa007f4b0:
>> >>> cookie 140576964702000
>> >>> (/usr/local/bin/qemu:11553): Spice-Debug **:
>> >>> red_dispatcher.c:962:red_dispatcher_async_complete: no more async
>> >>> commands
>> >>> (/usr/local/bin/qemu:11553): Spice-Debug **:
>> >>> red_dispatcher.c:309:async_command_alloc: 0x7fdaa00b6f30
>> >>> (/usr/local/bin/qemu:11553): SpiceWorker-Debug **:
>> >>> red_worker.c:10258:display_channel_release_item: not pushed (101)
>> >>> (/usr/local/bin/qemu:11553): SpiceWorker-Debug **:
>> >>> red_worker.c:10258:display_channel_release_item: not pushed (101)
>> >>> (/usr/local/bin/qemu:11553): SpiceWorker-Debug **:
>> >>> red_worker.c:4593:red_update_area: surface 20: area ==>
>> >>> (/usr/local/bin/qemu:11553): SpiceWorker-Debug **:
>> >>> ../spice-common/common/rect.h:91:rect_debug: (0, 0) (16, 16)
>> >>> (/usr/local/bin/qemu:11553): SpiceWorker-Debug **:
>> >>> red_worker.c:11443:worker_handle_dispatcher_async_done:
>> >>> (/usr/local/bin/qemu:11553): Spice-Debug **:
>> >>> red_dispatcher.c:960:red_dispatcher_async_complete:
>> >>> 0x7fdaa00b6f30:
>> >>> cookie 140576964474032
>> >>> (/usr/local/bin/qemu:11553): Spice-Debug **:
>> >>> red_dispatcher.c:962:red_dispatcher_async_complete: no more async
>> >>> commands
>> >>> (/usr/local/bin/qemu:11553): SpiceWorker-Debug **:
>> >>> red_worker.c:10258:display_channel_release_item: not pushed (101)
>> >>> (/usr/local/bin/qemu:11553): SpiceWorker-Debug **:
>> >>> red_worker.c:10258:display_channel_release_item: not pushed (101)
>> >>> (/usr/local/bin/qemu:11553): SpiceWorker-Debug **:
>> >>> red_worker.c:4593:red_update_area: surface 0: area ==>
>> >>> (/usr/local/bin/qemu:11553): SpiceWorker-Debug **:
>> >>> ../spice-common/common/rect.h:91:rect_debug: (472, 596) (547,
>> >>> 619)
>> >>> (/usr/local/bin/qemu:11553): SpiceWorker-ERROR **:
>> >>> ../spice-common/common/ring.h:83:ring_remove: assertion
>> >>> `item->next
>> >>> !=
>> >>> NULL && item->prev != NULL' failed
>> >>> Aborted
>> >>>
>> >>>
>> >>> (/usr/local/bin/qemu:21130): SpiceWorker-Debug **:
>> >>> red_worker.c:10258:display_channel_release_item: not pushed (101)
>> >>> (/usr/local/bin/qemu:21130): SpiceWorker-Debug **:
>> >>> red_worker.c:10258:display_channel_release_item: not pushed (101)
>> >>> (/usr/local/bin/qemu:21130): SpiceWorker-Debug **:
>> >>> red_worker.c:10258:display_channel_release_item: not pushed (101)
>> >>> (/usr/local/bin/qemu:21130): SpiceWorker-Debug **:
>> >>> red_worker.c:10258:display_channel_release_item: not pushed (101)
>> >>> (/usr/local/bin/qemu:21130): SpiceWorker-Debug **:
>> >>> red_worker.c:10258:display_channel_release_item: not pushed (101)
>> >>> (/usr/local/bin/qemu:21130): SpiceWorker-Debug **:
>> >>> red_worker.c:4593:red_update_area: surface 0: area ==>
>> >>> (/usr/local/bin/qemu:21130): SpiceWorker-Debug **:
>> >>> ../spice-common/common/rect.h:91:rect_debug: (165, 434) (359,
>> >>> 455)
>> >>> (/usr/local/bin/qemu:21130): SpiceWorker-Debug **:
>> >>> red_worker.c:4593:red_update_area: surface 22: area ==>
>> >>> (/usr/local/bin/qemu:21130): SpiceWorker-Debug **:
>> >>> ../spice-common/common/rect.h:91:rect_debug: (0, 0) (194, 21)
>> >>> (/usr/local/bin/qemu:21130): SpiceWorker-Debug **:
>> >>> red_worker.c:2030:red_clear_surface_drawables_from_pipe: surface
>> >>> 22
>> >>> dependent item found 0x7f67c1181838, 0x7f6728484650
>> >>> (/usr/local/bin/qemu:21130): SpiceWorker-Debug **:
>> >>> red_worker.c:10258:display_channel_release_item: not pushed (101)
>> >>> (/usr/local/bin/qemu:21130): SpiceWorker-Debug **:
>> >>> red_worker.c:10258:display_channel_release_item: not pushed (101)
>> >>> (/usr/local/bin/qemu:21130): SpiceWorker-Debug **:
>> >>> red_worker.c:4593:red_update_area: surface 0: area ==>
>> >>> (/usr/local/bin/qemu:21130): SpiceWorker-Debug **:
>> >>> ../spice-common/common/rect.h:91:rect_debug: (168, 435) (358,
>> >>> 454)
>> >>> (/usr/local/bin/qemu:21130): SpiceWorker-Debug **:
>> >>> red_worker.c:4593:red_update_area: surface 22: area ==>
>> >>> (/usr/local/bin/qemu:21130): SpiceWorker-Debug **:
>> >>> ../spice-common/common/rect.h:91:rect_debug: (3, 1) (193, 20)
>> >>> (/usr/local/bin/qemu:21130): SpiceWorker-Debug **:
>> >>> red_worker.c:2030:red_clear_surface_drawables_from_pipe: surface
>> >>> 22
>> >>> dependent item found 0x7f67c117e738, 0x7f672809f6e0
>> >>> (/usr/local/bin/qemu:21130): SpiceWorker-Debug **:
>> >>> red_worker.c:10258:display_channel_release_item: not pushed (101)
>> >>> (/usr/local/bin/qemu:21130): SpiceWorker-Debug **:
>> >>> red_worker.c:4593:red_update_area: surface 8: area ==>
>> >>> (/usr/local/bin/qemu:21130): SpiceWorker-Debug **:
>> >>> ../spice-common/common/rect.h:91:rect_debug: (5, 0) (199, 158)
>> >>> (/usr/local/bin/qemu:21130): SpiceWorker-Debug **:
>> >>> red_worker.c:4593:red_update_area: surface 0: area ==>
>> >>> (/usr/local/bin/qemu:21130): SpiceWorker-Debug **:
>> >>> ../spice-common/common/rect.h:91:rect_debug: (165, 455) (359,
>> >>> 613)
>> >>> (/usr/local/bin/qemu:21130): SpiceWorker-Debug **:
>> >>> red_worker.c:4593:red_update_area: surface 0: area ==>
>> >>> (/usr/local/bin/qemu:21130): SpiceWorker-Debug **:
>> >>> ../spice-common/common/rect.h:91:rect_debug: (165, 455) (359,
>> >>> 613)
>> >>> (/usr/local/bin/qemu:21130): SpiceWorker-Debug **:
>> >>> red_worker.c:4593:red_update_area: surface 25: area ==>
>> >>> (/usr/local/bin/qemu:21130): SpiceWorker-Debug **:
>> >>> ../spice-common/common/rect.h:91:rect_debug: (0, 0) (194, 158)
>> >>> (/usr/local/bin/qemu:21130): SpiceWorker-Debug **:
>> >>> red_worker.c:2030:red_clear_surface_drawables_from_pipe: surface
>> >>> 25
>> >>> dependent item found 0x7f67c11813a0, 0x7f672806db10
>> >>> (/usr/local/bin/qemu:21130): SpiceWorker-Debug **:
>> >>> red_worker.c:10258:display_channel_release_item: not pushed (101)
>> >>> (/usr/local/bin/qemu:21130): SpiceWorker-Debug **:
>> >>> red_worker.c:4593:red_update_area: surface 0: area ==>
>> >>> (/usr/local/bin/qemu:21130): SpiceWorker-Debug **:
>> >>> ../spice-common/common/rect.h:91:rect_debug: (341, 435) (358,
>> >>> 454)
>> >>> (/usr/local/bin/qemu:21130): SpiceWorker-Debug **:
>> >>> red_worker.c:4593:red_update_area: surface 22: area ==>
>> >>> (/usr/local/bin/qemu:21130): SpiceWorker-Debug **:
>> >>> ../spice-common/common/rect.h:91:rect_debug: (176, 1) (193, 20)
>> >>> (/usr/local/bin/qemu:21130): SpiceWorker-Debug **:
>> >>> red_worker.c:10258:display_channel_release_item: not pushed (101)
>> >>> (/usr/local/bin/qemu:21130): SpiceWorker-Debug **:
>> >>> red_worker.c:10258:display_channel_release_item: not pushed (101)
>> >>> (/usr/local/bin/qemu:21130): SpiceWorker-Debug **:
>> >>> red_worker.c:2030:red_clear_surface_drawables_from_pipe: surface
>> >>> 22
>> >>> dependent item found 0x7f67c117e118, 0x7f67280ab110
>> >>> (/usr/local/bin/qemu:21130): SpiceWorker-Debug **:
>> >>> red_worker.c:10258:display_channel_release_item: not pushed (101)
>> >>> (/usr/local/bin/qemu:21130): SpiceWorker-Debug **:
>> >>> red_worker.c:4593:red_update_area: surface 0: area ==>
>> >>> (/usr/local/bin/qemu:21130): SpiceWorker-Debug **:
>> >>> ../spice-common/common/rect.h:91:rect_debug: (165, 434) (359,
>> >>> 455)
>> >>> (/usr/local/bin/qemu:21130): SpiceWorker-Debug **:
>> >>> red_worker.c:4593:red_update_area: surface 10: area ==>
>> >>> (/usr/local/bin/qemu:21130): SpiceWorker-Debug **:
>> >>> ../spice-common/common/rect.h:91:rect_debug: (0, 0) (194, 21)
>> >>> (/usr/local/bin/qemu:21130): SpiceWorker-Debug **:
>> >>> red_worker.c:2030:red_clear_surface_drawables_from_pipe: surface
>> >>> 10
>> >>> dependent item found 0x7f67c11bd540, 0x7f6728189b90
>> >>> (/usr/local/bin/qemu:21130): SpiceWorker-Debug **:
>> >>> red_worker.c:10258:display_channel_release_item: not pushed (101)
>> >>> (/usr/local/bin/qemu:21130): SpiceWorker-Debug **:
>> >>> red_worker.c:10258:display_channel_release_item: not pushed (101)
>> >>> (/usr/local/bin/qemu:21130): SpiceWorker-Debug **:
>> >>> red_worker.c:10258:display_channel_release_item: not pushed (101)
>> >>> (/usr/local/bin/qemu:21130): SpiceWorker-Debug **:
>> >>> red_worker.c:10258:display_channel_release_item: not pushed (101)
>> >>> (/usr/local/bin/qemu:21130): SpiceWorker-Debug **:
>> >>> red_worker.c:4593:red_update_area: surface 0: area ==>
>> >>> (/usr/local/bin/qemu:21130): SpiceWorker-Debug **:
>> >>> ../spice-common/common/rect.h:91:rect_debug: (165, 455) (359,
>> >>> 613)
>> >>> (/usr/local/bin/qemu:21130): SpiceWorker-Debug **:
>> >>> red_worker.c:4593:red_update_area: surface 8: area ==>
>> >>> (/usr/local/bin/qemu:21130): SpiceWorker-Debug **:
>> >>> ../spice-common/common/rect.h:91:rect_debug: (5, 0) (199, 158)
>> >>> (/usr/local/bin/qemu:21130): SpiceWorker-Debug **:
>> >>> red_worker.c:2030:red_clear_surface_drawables_from_pipe: surface
>> >>> 8
>> >>> dependent item found 0x7f67c11bd540, 0x7f67285e68c0
>> >>> (/usr/local/bin/qemu:21130): SpiceWorker-Debug **:
>> >>> red_worker.c:10258:display_channel_release_item: not pushed (101)
>> >>> (/usr/local/bin/qemu:21130): SpiceWorker-Debug **:
>> >>> red_worker.c:10258:display_channel_release_item: not pushed (101)
>> >>> (/usr/local/bin/qemu:21130): SpiceWorker-Debug **:
>> >>> red_worker.c:4593:red_update_area: surface 0: area ==>
>> >>> (/usr/local/bin/qemu:21130): SpiceWorker-Debug **:
>> >>> ../spice-common/common/rect.h:91:rect_debug: (168, 437) (339,
>> >>> 452)
>> >>> (/usr/local/bin/qemu:21130): SpiceWorker-Debug **:
>> >>> red_worker.c:4593:red_update_area: surface 10: area ==>
>> >>> (/usr/local/bin/qemu:21130): SpiceWorker-Debug **:
>> >>> ../spice-common/common/rect.h:91:rect_debug: (3, 3) (174, 18)
>> >>> (/usr/local/bin/qemu:21130): SpiceWorker-Debug **:
>> >>> red_worker.c:2030:red_clear_surface_drawables_from_pipe: surface
>> >>> 10
>> >>> dependent item found 0x7f67c1181838, 0x7f67281b6310
>> >>> (/usr/local/bin/qemu:21130): SpiceWorker-Debug **:
>> >>> red_worker.c:10258:display_channel_release_item: not pushed (101)
>> >>> (/usr/local/bin/qemu:21130): SpiceWorker-Debug **:
>> >>> red_worker.c:2633:red_display_detach_stream_gracefully: stream
>> >>> 49:
>> >>> upgrade by screenshot. has current 0. box ==>
>> >>> (/usr/local/bin/qemu:21130): SpiceWorker-Debug **:
>> >>> ../spice-common/common/rect.h:91:rect_debug: (257, 265) (409,
>> >>> 377)
>> >>> (/usr/local/bin/qemu:21130): SpiceWorker-Debug **:
>> >>> red_worker.c:4593:red_update_area: surface 0: area ==>
>> >>> (/usr/local/bin/qemu:21130): SpiceWorker-Debug **:
>> >>> ../spice-common/common/rect.h:91:rect_debug: (257, 265) (409,
>> >>> 377)
>> >>> (/usr/local/bin/qemu:21130): SpiceWorker-Debug **:
>> >>> red_worker.c:2674:red_detach_streams_behind: stream 49
>> >>> Segmentation fault
>> >>>
>> >>
>> >> Hi Nicolas,
>> >>
>> >> Thanks for the report (s), can you please provide a stacktrace of
>> >> qemu when it segfaults?
>> >> Simplest way differs depending on how you run it:
>> >> 1) standalone - you launch qemu directly. Then run it under gdb:
>> >> gdb --args qemu...
>> >> r
>> >> <do what leads to segfault>
>> >> thread apply all bt
>> >> 2) you launch qemu via libvirt / any other means.
>> >> launch qemu normally
>> >> if this is the only copy of qemu that is running, you can
>> >> launch:
>> >> gdb -p `pgrep qemu`
>> >> if you have more then one, you'll need to identify the pid
>> >> yourself.
>> >> <do what leads to segfault>
>> >> thread apply all bt
>> >>
>> >> Alon
>> >>
>> >>>
>> >>>
>> >>> Regards,
>> >>> Nicolas
>> >>> _______________________________________________
>> >>> Spice-devel mailing list
>> >>> Spice-devel@lists.freedesktop.org
>> >>> http://lists.freedesktop.org/mailman/listinfo/spice-devel
>> >>>
>>
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