Bug#1008776: intel-media-va-driver: Segmentation fault with gstreamer based applications
Package: intel-media-va-driver
Version: 22.3.0+dfsg1-1
Severity: grave
Justification: renders package unusable
X-Debbugs-Cc: kai.weber+debian@glorybox.de
Dear Maintainer,
since a recent update (can not excalty determine the date) gstreamer based applications like totem or gst-play-1.0 itself segfault on video files.
Removing intel-media-va-driver resolves the issue.
Installing intel-media-va-driver-non-free resolves the issue.
Attached is a backtrace. I have no experience getting backtraces. This one was achieved after install the intel-media-va-driver-dbgsym package and running
$ export DEBUGINFOD_URLS="https://debuginfod.debian.net";
$ gdb --args gst-play-1.0 /home/kai/Downloads/pony.mp4 --videosink=glimagesink
Thread 14 "qtdemux0:sink" received signal SIGSEGV, Segmentation fault.
[Switching to Thread 0x7fffb77fe640 (LWP 22147)]
0x00007fffb5f906be in KernelDll_AllocateStates (pKernelBin=<optimized out>, uKernelSize=0, pFcPatchCache=0x0,
uFcPatchCacheSize=<optimized out>, pDefaultRules=0x0, ModifyFunctionPointers=0x0)
at ./media_driver/agnostic/common/vp/kdll/hal_kerneldll.c:2791
Download failed: Invalid argument. Continuing without source file ./obj-x86_64-linux-gnu/media_driver/./media_driver/agnostic/common/vp/kdll/hal_kerneldll.c.
2791 ./media_driver/agnostic/common/vp/kdll/hal_kerneldll.c: No such file or directory.
(gdb) set logging file backtrace.log
(gdb) set logging on
Copying output to backtrace.log.
(gdb) bt
...
(gdb) set logging off
Done logging to backtrace.log.
(gdb) quit
-- System Information:
Debian Release: bookworm/sid
APT prefers unstable-debug
APT policy: (500, 'unstable-debug'), (500, 'unstable')
Architecture: amd64 (x86_64)
Kernel: Linux 5.16.0-6-amd64 (SMP w/8 CPU threads; PREEMPT)
Kernel taint flags: TAINT_OOT_MODULE, TAINT_UNSIGNED_MODULE
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8), LANGUAGE=en_US:en
Shell: /bin/sh linked to /usr/bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled
Versions of packages intel-media-va-driver depends on:
ii libc6 2.33-7
ii libgcc-s1 12-20220319-1
ii libigdgmm12 22.1.2+ds1-1
ii libstdc++6 12-20220319-1
ii libva2 [libva-driver-abi-1.14] 2.14.0-1
intel-media-va-driver recommends no packages.
intel-media-va-driver suggests no packages.
-- no debconf information
#0 0x00007fffb5f906be in KernelDll_AllocateStates (pKernelBin=<optimized out>, uKernelSize=0, pFcPatchCache=0x0,
uFcPatchCacheSize=<optimized out>, pDefaultRules=0x0, ModifyFunctionPointers=0x0)
at ./media_driver/agnostic/common/vp/kdll/hal_kerneldll.c:2791
#1 0x00007fffb5f82028 in VphalRenderer::Initialize (this=0x7fffa813d480, pSettings=0x7fffb77fae80, isApoEnabled=<optimized out>)
at ./media_driver/agnostic/common/vp/hal/vphal_renderer.cpp:1418
#2 0x00007fffb5f67a89 in VphalState::Allocate (this=0x7fffa8123e50, pVpHalSettings=0x7fffb77fae80)
at ./media_driver/agnostic/common/vp/hal/vphal.cpp:201
#3 0x00007fffb61848a2 in DdiVp_InitVpHal (pVpCtx=0x7fffa812add0) at ./media_driver/linux/common/vp/ddi/media_libva_vp.c:1811
#4 0x00007fffb6189460 in DdiVp_InitCtx (pVaDrvCtx=<optimized out>, pVpCtx=0x7fffa812add0)
at ./media_driver/linux/common/vp/ddi/media_libva_vp.c:1671
#5 0x00007fffb618985e in DdiVp_CreateContext (pVaDrvCtx=pVaDrvCtx@entry=0x7fffa8081e20, vaConfigID=vaConfigID@entry=0,
iWidth=iWidth@entry=0, iHeight=iHeight@entry=0, iFlag=iFlag@entry=0, vaSurfIDs=vaSurfIDs@entry=0x0, iNumSurfs=0,
pVaCtxID=0x7fffb77fb1ac) at ./media_driver/linux/common/vp/ddi/media_libva_vp.c:3291
#6 0x00007fffb6147be2 in DdiMedia_PutImage (ctx=0x7fffa8081e20, surface=0, image=<optimized out>, src_x=0, src_y=0, src_width=64,
src_height=64, dest_x=0, dest_y=0, dest_width=64, dest_height=64) at ./media_driver/linux/common/ddi/media_libva.cpp:5535
#7 0x00007fffd425521c in vaPutImage () from /lib/x86_64-linux-gnu/libva.so.2
#8 0x00007fffd42def8d in ?? () from /usr/lib/x86_64-linux-gnu/gstreamer-1.0/libgstvaapi.so
#9 0x00007fffd429d686 in ?? () from /usr/lib/x86_64-linux-gnu/gstreamer-1.0/libgstvaapi.so
#10 0x00007fffd42a480e in ?? () from /usr/lib/x86_64-linux-gnu/gstreamer-1.0/libgstvaapi.so
#11 0x00007ffff77ac5cb in ?? () from /lib/x86_64-linux-gnu/libgstbase-1.0.so.0
#12 0x00007ffff77b014d in ?? () from /lib/x86_64-linux-gnu/libgstbase-1.0.so.0
#13 0x00007ffff7b912f0 in gst_pad_query () from /lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
#14 0x00007ffff7b91a1b in gst_pad_peer_query () from /lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
#15 0x00007ffff7bd14b8 in gst_pad_peer_query_caps () from /lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
#16 0x00007ffff77afe28 in ?? () from /lib/x86_64-linux-gnu/libgstbase-1.0.so.0
#17 0x00007ffff7b912f0 in gst_pad_query () from /lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
#18 0x00007ffff7b91a1b in gst_pad_peer_query () from /lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
#19 0x00007ffff7bcb858 in ?? () from /lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
#20 0x00007ffff7b8fbde in gst_pad_forward () from /lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
#21 0x00007ffff7bce40a in gst_pad_proxy_query_caps () from /lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
#22 0x00007ffff7b8fe06 in gst_pad_query_default () from /lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
#23 0x00007ffff7b912f0 in gst_pad_query () from /lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
#24 0x00007ffff7b91a1b in gst_pad_peer_query () from /lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
#25 0x00007ffff7bd14b8 in gst_pad_peer_query_caps () from /lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
#26 0x00007ffff7efdbb9 in ?? () from /lib/x86_64-linux-gnu/libgstvideo-1.0.so.0
#27 0x00007fffd4297b84 in ?? () from /usr/lib/x86_64-linux-gnu/gstreamer-1.0/libgstvaapi.so
#28 0x00007ffff7ee8f36 in ?? () from /lib/x86_64-linux-gnu/libgstvideo-1.0.so.0
#29 0x00007ffff7b912f0 in gst_pad_query () from /lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
#30 0x00007ffff7bcec98 in gst_pad_query_caps () from /lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
#31 0x00007ffff7ee91a1 in ?? () from /lib/x86_64-linux-gnu/libgstvideo-1.0.so.0
#32 0x00007ffff7b912f0 in gst_pad_query () from /lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
#33 0x00007ffff7b91a1b in gst_pad_peer_query () from /lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
#34 0x00007ffff7bcb7f0 in ?? () from /lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
#35 0x00007ffff7b8fbde in gst_pad_forward () from /lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
#36 0x00007ffff7bce24e in gst_pad_proxy_query_accept_caps () from /lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
#37 0x00007ffff7b903fb in gst_pad_query_default () from /lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
#38 0x00007ffff7b912f0 in gst_pad_query () from /lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
#39 0x00007ffff7bd1698 in gst_pad_query_accept_caps () from /lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
#40 0x00007ffff7b89c6a in ?? () from /lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
#41 0x00007ffff7b93c45 in gst_pad_send_event () from /lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
#42 0x00007ffff63891e8 in ?? () from /usr/lib/x86_64-linux-gnu/gstreamer-1.0/libgstplayback.so
#43 0x00007ffff7b88798 in ?? () from /lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
#44 0x00007ffff7b87fc0 in ?? () from /lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
#45 0x00007ffff7b94848 in gst_pad_sticky_events_foreach () from /lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
#46 0x00007ffff6394c8f in ?? () from /usr/lib/x86_64-linux-gnu/gstreamer-1.0/libgstplayback.so
#47 0x00007ffff639280e in ?? () from /usr/lib/x86_64-linux-gnu/gstreamer-1.0/libgstplayback.so
#48 0x00007ffff6393384 in ?? () from /usr/lib/x86_64-linux-gnu/gstreamer-1.0/libgstplayback.so
#49 0x00007ffff639364e in ?? () from /usr/lib/x86_64-linux-gnu/gstreamer-1.0/libgstplayback.so
#50 0x00007ffff7c6871f in g_closure_invoke () from /lib/x86_64-linux-gnu/libgobject-2.0.so.0
#51 0x00007ffff7c7acf6 in ?? () from /lib/x86_64-linux-gnu/libgobject-2.0.so.0
#52 0x00007ffff7c81111 in g_signal_emit_valist () from /lib/x86_64-linux-gnu/libgobject-2.0.so.0
#53 0x00007ffff7c816bf in g_signal_emit () from /lib/x86_64-linux-gnu/libgobject-2.0.so.0
#54 0x00007ffff7c6ce74 in ?? () from /lib/x86_64-linux-gnu/libgobject-2.0.so.0
#55 0x00007ffff7b3f5e4 in ?? () from /lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
#56 0x00007ffff7c6f00a in g_object_notify_by_pspec () from /lib/x86_64-linux-gnu/libgobject-2.0.so.0
#57 0x00007ffff7b886a7 in ?? () from /lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
#58 0x00007ffff7b938c0 in gst_pad_push_event () from /lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
#59 0x00007ffff77af688 in ?? () from /lib/x86_64-linux-gnu/libgstbase-1.0.so.0
#60 0x00007ffff77b0d42 in ?? () from /lib/x86_64-linux-gnu/libgstbase-1.0.so.0
#61 0x00007fffdc0cb205 in ?? () from /usr/lib/x86_64-linux-gnu/gstreamer-1.0/libgstcoreelements.so
#62 0x00007ffff7b89b9c in ?? () from /lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
#63 0x00007ffff7b8a21e in ?? () from /lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
#64 0x00007ffff7b8a6d4 in ?? () from /lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
#65 0x00007ffff7b87fc0 in ?? () from /lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
#66 0x00007ffff7b935d0 in gst_pad_push_event () from /lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
#67 0x00007fffd441b0e0 in ?? () from /usr/lib/x86_64-linux-gnu/gstreamer-1.0/libgstvideoparsersbad.so
#68 0x00007fffd441e900 in ?? () from /usr/lib/x86_64-linux-gnu/gstreamer-1.0/libgstvideoparsersbad.so
#69 0x00007ffff778df25 in ?? () from /lib/x86_64-linux-gnu/libgstbase-1.0.so.0
#70 0x00007ffff7b89b9c in ?? () from /lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
#71 0x00007ffff7b93c45 in gst_pad_send_event () from /lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
#72 0x00007ffff63891e8 in ?? () from /usr/lib/x86_64-linux-gnu/gstreamer-1.0/libgstplayback.so
#73 0x00007ffff7b88798 in ?? () from /lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
#74 0x00007ffff7b87fc0 in ?? () from /lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
#75 0x00007ffff7b94848 in gst_pad_sticky_events_foreach () from /lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
#76 0x00007ffff6394c8f in ?? () from /usr/lib/x86_64-linux-gnu/gstreamer-1.0/libgstplayback.so
#77 0x00007ffff639280e in ?? () from /usr/lib/x86_64-linux-gnu/gstreamer-1.0/libgstplayback.so
#78 0x00007ffff6393384 in ?? () from /usr/lib/x86_64-linux-gnu/gstreamer-1.0/libgstplayback.so
#79 0x00007ffff7c6ba61 in g_cclosure_marshal_VOID__OBJECTv () from /lib/x86_64-linux-gnu/libgobject-2.0.so.0
#80 0x00007ffff7c68949 in ?? () from /lib/x86_64-linux-gnu/libgobject-2.0.so.0
#81 0x00007ffff7c81499 in g_signal_emit_valist () from /lib/x86_64-linux-gnu/libgobject-2.0.so.0
#82 0x00007ffff7c816bf in g_signal_emit () from /lib/x86_64-linux-gnu/libgobject-2.0.so.0
#83 0x00007ffff7b69db0 in gst_element_add_pad () from /lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
#84 0x00007fffd44abbcc in ?? () from /usr/lib/x86_64-linux-gnu/gstreamer-1.0/libgstisomp4.so
#85 0x00007fffd44ad835 in ?? () from /usr/lib/x86_64-linux-gnu/gstreamer-1.0/libgstisomp4.so
#86 0x00007fffd44cd9ba in ?? () from /usr/lib/x86_64-linux-gnu/gstreamer-1.0/libgstisomp4.so
#87 0x00007ffff7bc20cf in ?? () from /lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
#88 0x00007ffff7d30e94 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#89 0x00007ffff7d3059d in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#90 0x00007ffff7748d80 in start_thread (arg=0x7fffb77fe640) at pthread_create.c:481
#91 0x00007ffff78df76f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
#0 0x00007fffb5f906be in KernelDll_AllocateStates (pKernelBin=<optimized out>, uKernelSize=0, pFcPatchCache=0x0,
uFcPatchCacheSize=<optimized out>, pDefaultRules=0x0, ModifyFunctionPointers=0x0)
at ./media_driver/agnostic/common/vp/kdll/hal_kerneldll.c:2791
#1 0x00007fffb5f82028 in VphalRenderer::Initialize (this=0x7fffa813e480, pSettings=0x7fffb77fae80, isApoEnabled=<optimized out>)
at ./media_driver/agnostic/common/vp/hal/vphal_renderer.cpp:1418
#2 0x00007fffb5f67a89 in VphalState::Allocate (this=0x7fffa80f40c0, pVpHalSettings=0x7fffb77fae80)
at ./media_driver/agnostic/common/vp/hal/vphal.cpp:201
#3 0x00007fffb61848a2 in DdiVp_InitVpHal (pVpCtx=0x7fffa812b3e0) at ./media_driver/linux/common/vp/ddi/media_libva_vp.c:1811
#4 0x00007fffb6189460 in DdiVp_InitCtx (pVaDrvCtx=<optimized out>, pVpCtx=0x7fffa812b3e0)
at ./media_driver/linux/common/vp/ddi/media_libva_vp.c:1671
#5 0x00007fffb618985e in DdiVp_CreateContext (pVaDrvCtx=pVaDrvCtx@entry=0x7fffa8088050, vaConfigID=vaConfigID@entry=0,
iWidth=iWidth@entry=0, iHeight=iHeight@entry=0, iFlag=iFlag@entry=0, vaSurfIDs=vaSurfIDs@entry=0x0, iNumSurfs=0,
pVaCtxID=0x7fffb77fb1ac) at ./media_driver/linux/common/vp/ddi/media_libva_vp.c:3291
#6 0x00007fffb6147be2 in DdiMedia_PutImage (ctx=0x7fffa8088050, surface=0, image=<optimized out>, src_x=0, src_y=0, src_width=64,
src_height=64, dest_x=0, dest_y=0, dest_width=64, dest_height=64) at ./media_driver/linux/common/ddi/media_libva.cpp:5535
#7 0x00007fffd425521c in vaPutImage (dpy=0x7fffa8088410, surface=0, image=0, src_x=0, src_y=0, src_width=64, src_height=64, dest_x=0,
dest_y=0, dest_width=64, dest_height=64) at ./va/va.c:1864
#8 0x00007fffd42def8d in ?? () from /usr/lib/x86_64-linux-gnu/gstreamer-1.0/libgstvaapi.so
#9 0x00007fffd429d686 in ?? () from /usr/lib/x86_64-linux-gnu/gstreamer-1.0/libgstvaapi.so
#10 0x00007fffd42a480e in ?? () from /usr/lib/x86_64-linux-gnu/gstreamer-1.0/libgstvaapi.so
#11 0x00007ffff77ac5cb in ?? () from /lib/x86_64-linux-gnu/libgstbase-1.0.so.0
#12 0x00007ffff77b014d in ?? () from /lib/x86_64-linux-gnu/libgstbase-1.0.so.0
#13 0x00007ffff7b912f0 in gst_pad_query () from /lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
#14 0x00007ffff7b91a1b in gst_pad_peer_query () from /lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
#15 0x00007ffff7bd14b8 in gst_pad_peer_query_caps () from /lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
#16 0x00007ffff77afe28 in ?? () from /lib/x86_64-linux-gnu/libgstbase-1.0.so.0
#17 0x00007ffff7b912f0 in gst_pad_query () from /lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
#18 0x00007ffff7b91a1b in gst_pad_peer_query () from /lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
#19 0x00007ffff7bcb858 in ?? () from /lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
#20 0x00007ffff7b8fbde in gst_pad_forward () from /lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
#21 0x00007ffff7bce40a in gst_pad_proxy_query_caps () from /lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
#22 0x00007ffff7b8fe06 in gst_pad_query_default () from /lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
#23 0x00007ffff7b912f0 in gst_pad_query () from /lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
#24 0x00007ffff7b91a1b in gst_pad_peer_query () from /lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
#25 0x00007ffff7bd14b8 in gst_pad_peer_query_caps () from /lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
#26 0x00007ffff7efdbb9 in ?? () from /lib/x86_64-linux-gnu/libgstvideo-1.0.so.0
#27 0x00007fffd4297b84 in ?? () from /usr/lib/x86_64-linux-gnu/gstreamer-1.0/libgstvaapi.so
#28 0x00007ffff7ee8f36 in ?? () from /lib/x86_64-linux-gnu/libgstvideo-1.0.so.0
#29 0x00007ffff7b912f0 in gst_pad_query () from /lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
#30 0x00007ffff7bcec98 in gst_pad_query_caps () from /lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
#31 0x00007ffff7ee91a1 in ?? () from /lib/x86_64-linux-gnu/libgstvideo-1.0.so.0
#32 0x00007ffff7b912f0 in gst_pad_query () from /lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
#33 0x00007ffff7b91a1b in gst_pad_peer_query () from /lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
#34 0x00007ffff7bcb7f0 in ?? () from /lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
#35 0x00007ffff7b8fbde in gst_pad_forward () from /lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
#36 0x00007ffff7bce24e in gst_pad_proxy_query_accept_caps () from /lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
#37 0x00007ffff7b903fb in gst_pad_query_default () from /lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
#38 0x00007ffff7b912f0 in gst_pad_query () from /lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
#39 0x00007ffff7bd1698 in gst_pad_query_accept_caps () from /lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
#40 0x00007ffff7b89c6a in ?? () from /lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
#41 0x00007ffff7b93c45 in gst_pad_send_event () from /lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
#42 0x00007ffff63891e8 in ?? () from /usr/lib/x86_64-linux-gnu/gstreamer-1.0/libgstplayback.so
#43 0x00007ffff7b88798 in ?? () from /lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
#44 0x00007ffff7b87fc0 in ?? () from /lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
#45 0x00007ffff7b94848 in gst_pad_sticky_events_foreach () from /lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
#46 0x00007ffff6394c8f in ?? () from /usr/lib/x86_64-linux-gnu/gstreamer-1.0/libgstplayback.so
#47 0x00007ffff639280e in ?? () from /usr/lib/x86_64-linux-gnu/gstreamer-1.0/libgstplayback.so
#48 0x00007ffff6393384 in ?? () from /usr/lib/x86_64-linux-gnu/gstreamer-1.0/libgstplayback.so
#49 0x00007ffff639364e in ?? () from /usr/lib/x86_64-linux-gnu/gstreamer-1.0/libgstplayback.so
#50 0x00007ffff7c6871f in g_closure_invoke () from /lib/x86_64-linux-gnu/libgobject-2.0.so.0
#51 0x00007ffff7c7acf6 in ?? () from /lib/x86_64-linux-gnu/libgobject-2.0.so.0
#52 0x00007ffff7c81111 in g_signal_emit_valist () from /lib/x86_64-linux-gnu/libgobject-2.0.so.0
#53 0x00007ffff7c816bf in g_signal_emit () from /lib/x86_64-linux-gnu/libgobject-2.0.so.0
#54 0x00007ffff7c6ce74 in ?? () from /lib/x86_64-linux-gnu/libgobject-2.0.so.0
#55 0x00007ffff7b3f5e4 in ?? () from /lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
#56 0x00007ffff7c6f00a in g_object_notify_by_pspec () from /lib/x86_64-linux-gnu/libgobject-2.0.so.0
#57 0x00007ffff7b886a7 in ?? () from /lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
#58 0x00007ffff7b938c0 in gst_pad_push_event () from /lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
#59 0x00007ffff77af688 in ?? () from /lib/x86_64-linux-gnu/libgstbase-1.0.so.0
#60 0x00007ffff77b0d42 in ?? () from /lib/x86_64-linux-gnu/libgstbase-1.0.so.0
#61 0x00007fffdc0cb205 in ?? () from /usr/lib/x86_64-linux-gnu/gstreamer-1.0/libgstcoreelements.so
#62 0x00007ffff7b89b9c in ?? () from /lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
#63 0x00007ffff7b8a21e in ?? () from /lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
#64 0x00007ffff7b8a6d4 in ?? () from /lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
#65 0x00007ffff7b87fc0 in ?? () from /lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
#66 0x00007ffff7b935d0 in gst_pad_push_event () from /lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
#67 0x00007fffd441b0e0 in ?? () from /usr/lib/x86_64-linux-gnu/gstreamer-1.0/libgstvideoparsersbad.so
#68 0x00007fffd441e900 in ?? () from /usr/lib/x86_64-linux-gnu/gstreamer-1.0/libgstvideoparsersbad.so
#69 0x00007ffff778df25 in ?? () from /lib/x86_64-linux-gnu/libgstbase-1.0.so.0
#70 0x00007ffff7b89b9c in ?? () from /lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
#71 0x00007ffff7b93c45 in gst_pad_send_event () from /lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
#72 0x00007ffff63891e8 in ?? () from /usr/lib/x86_64-linux-gnu/gstreamer-1.0/libgstplayback.so
#73 0x00007ffff7b88798 in ?? () from /lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
#74 0x00007ffff7b87fc0 in ?? () from /lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
#75 0x00007ffff7b94848 in gst_pad_sticky_events_foreach () from /lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
#76 0x00007ffff6394c8f in ?? () from /usr/lib/x86_64-linux-gnu/gstreamer-1.0/libgstplayback.so
#77 0x00007ffff639280e in ?? () from /usr/lib/x86_64-linux-gnu/gstreamer-1.0/libgstplayback.so
#78 0x00007ffff6393384 in ?? () from /usr/lib/x86_64-linux-gnu/gstreamer-1.0/libgstplayback.so
#79 0x00007ffff7c6ba61 in g_cclosure_marshal_VOID__OBJECTv () from /lib/x86_64-linux-gnu/libgobject-2.0.so.0
#80 0x00007ffff7c68949 in ?? () from /lib/x86_64-linux-gnu/libgobject-2.0.so.0
#81 0x00007ffff7c81499 in g_signal_emit_valist () from /lib/x86_64-linux-gnu/libgobject-2.0.so.0
#82 0x00007ffff7c816bf in g_signal_emit () from /lib/x86_64-linux-gnu/libgobject-2.0.so.0
#83 0x00007ffff7b69db0 in gst_element_add_pad () from /lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
#84 0x00007fffd44abbcc in ?? () from /usr/lib/x86_64-linux-gnu/gstreamer-1.0/libgstisomp4.so
#85 0x00007fffd44ad835 in ?? () from /usr/lib/x86_64-linux-gnu/gstreamer-1.0/libgstisomp4.so
#86 0x00007fffd44cd9ba in ?? () from /usr/lib/x86_64-linux-gnu/gstreamer-1.0/libgstisomp4.so
#87 0x00007ffff7bc20cf in ?? () from /lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
#88 0x00007ffff7d30e94 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#89 0x00007ffff7d3059d in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#90 0x00007ffff7748d80 in start_thread (arg=0x7fffb77fe640) at pthread_create.c:481
#91 0x00007ffff78df76f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
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