RESOLVED FIXED 190135
[GStreamer] Rare crash (_g_log_abort) in flushCurrentBuffer() 
https://bugs.webkit.org/show_bug.cgi?id=190135
Summary [GStreamer] Rare crash (_g_log_abort) in flushCurrentBuffer()
Alicia Boya García
Reported 2018-10-01 06:21:23 PDT
I've seen this happen once: (WebKitWebProcess:24060): GStreamer-CRITICAL **: gst_sample_get_info: assertion 'GST_IS_SAMPLE (sample)' failed Thread 1 (Thread 0x7f05dfa136c0 (LWP 24060)): #0 _g_log_abort () at /webkit/WebKitBuild/DependenciesGTK/Source/glib-2.54.2/glib/gmessages.c:554 #1 0x00007f05c2850559 in g_logv () at /webkit/WebKitBuild/DependenciesGTK/Source/glib-2.54.2/glib/gmessages.c:1362 #2 0x00007f05c2850712 in g_log () at /webkit/WebKitBuild/DependenciesGTK/Source/glib-2.54.2/glib/gmessages.c:1403 #3 0x00007f05c5106bb2 in gst_sample_get_info () at /webkit/WebKitBuild/DependenciesGTK/Source/gstreamer-1.14.3/gst/gstsample.c:216 #4 0x00007f05d9e0c8ca in WebCore::MediaPlayerPrivateGStreamerBase::flushCurrentBuffer (this=0x7f0562e94000) at ../../Source/WebCore/platform/graphics/gstreamer/MediaPlayerPrivateGStreamerBase.cpp:921 #5 0x00007f05d9e0cfe5 in WebCore::MediaPlayerPrivateGStreamerBase::<lambda(GstPad*, GstPadProbeInfo*, gpointer)>::operator()(GstPad *, GstPadProbeInfo *, gpointer) const (__closure=0x0, info=0x7ffd075cd030, userData=0x7f0562e94000) at ../../Source/WebCore/platform/graphics/gstreamer/MediaPlayerPrivateGStreamerBase.cpp:1091 #6 0x00007f05d9e0d019 in WebCore::MediaPlayerPrivateGStreamerBase::<lambda(GstPad*, GstPadProbeInfo*, gpointer)>::_FUN(GstPad *, GstPadProbeInfo *, gpointer) () at ../../Source/WebCore/platform/graphics/gstreamer/MediaPlayerPrivateGStreamerBase.cpp:1093 #7 0x00007f05c50def8e in probe_hook_marshal () at /webkit/WebKitBuild/DependenciesGTK/Source/gstreamer-1.14.3/gst/gstpad.c:3561 #8 0x00007f05c283a6a4 in g_hook_list_marshal () at /webkit/WebKitBuild/DependenciesGTK/Source/glib-2.54.2/glib/ghook.c:672 #9 0x00007f05c50de697 in do_probe_callbacks () at /webkit/WebKitBuild/DependenciesGTK/Source/gstreamer-1.14.3/gst/gstpad.c:3723 #10 0x00007f05c50e0ea3 in gst_pad_send_event_unchecked () at /webkit/WebKitBuild/DependenciesGTK/Source/gstreamer-1.14.3/gst/gstpad.c:5733 #11 0x00007f05c50e1564 in gst_pad_push_event_unchecked () at /webkit/WebKitBuild/DependenciesGTK/Source/gstreamer-1.14.3/gst/gstpad.c:5406 Probably m_sample is null at that point.
Attachments
Patch (3.82 KB, patch)
2018-10-01 09:41 PDT, Alicia Boya García 		no flags
DetailsFormatted DiffDiff
View All Add attachment proposed patch, testcase, etc.
Philippe Normand
Comment 1 2018-10-01 06:27:33 PDT
Steps to reproduce?
Philippe Normand
Comment 2 2018-10-01 06:52:06 PDT
But yeah, looking at the code the crash reason is obvious anyway :)
Alicia Boya García
Comment 3 2018-10-01 09:41:42 PDT
Created attachment 351253 [details] Patch
Philippe Normand
Comment 4 2018-10-01 09:52:24 PDT
Comment on attachment 351253 [details] Patch Thanks!
WebKit Commit Bot
Comment 5 2018-10-01 10:40:57 PDT
Comment on attachment 351253 [details] Patch Clearing flags on attachment: 351253 Committed r236668: <https://trac.webkit.org/changeset/236668>
WebKit Commit Bot
Comment 6 2018-10-01 10:40:59 PDT
All reviewed patches have been landed. Closing bug.
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