> Yes it happens with and without -vnc qemu cmdline > Nicolas > 2012/9/5 Alon Levy <alevy@xxxxxxxxxx>: 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@xxxxxxxxx>: > >> > 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@xxxxxxxxxx>: > >> >>> 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@xxxxxxxxxxxxxxxxxxxxx > >> >>> http://lists.freedesktop.org/mailman/listinfo/spice-devel > >> >>> > >> > _______________________________________________ Spice-devel mailing list Spice-devel@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/spice-devel