[Spice-devel] [ spice-devel ] libspice server segfault
Alon Levy
alevy at redhat.com
Wed Sep 5 06:56:35 PDT 2012
> Yes it happens with and without -vnc qemu cmdline
> Nicolas
> 2012/9/5 Alon Levy <alevy at redhat.com>:
Right after the segfault, before "thread apply all bt", can you please run
p item
p item->next
info locals
Thanks,
Alon
> >> 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.nicolas at 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 <alevy at 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 at lists.freedesktop.org
> >> >>> http://lists.freedesktop.org/mailman/listinfo/spice-devel
> >> >>>
> >>
>
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