[Webkit-unassigned] [Bug 213364] New: [GStreamer] gst_buffer_unmap: assertion 'GST_IS_BUFFER (buffer)' failed

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=213364

            Bug ID: 213364
           Summary: [GStreamer] gst_buffer_unmap: assertion 'GST_IS_BUFFER
                    (buffer)' failed
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Media
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: dpino at igalia.com

imported/w3c/web-platform-tests/encrypted-media/clearkey-mp4-setmediakeys-to-multiple-video-elements.https.html [ Crash ]

The test is a flaky crash. First crash happened at:

r262780                       NOERROR
[r262781-r262784]             UNKNOWN
r262785                       CRASH (Expected: PASS)

Crash-log: https://build.webkit.org/results/GTK%20Linux%2064-bit%20Release%20(Tests)/r263245%20(14146)/imported/w3c/web-platform-tests/encrypted-media/clearkey-mp4-setmediakeys-to-multiple-video-elements.https-crash-log.txt

Thread 1 (Thread 0x7ff6da95a2c0 (LWP 32470)):
#0  0x00007ff6dcba0ee5 in _g_log_abort (breakpoint=1) at ../glib/gmessages.c:554
#1  0x00007ff6dcba21c9 in g_logv (log_domain=0x7ff6dd51f5e0 <g_log_domain_gstreamer> "GStreamer", log_level=G_LOG_LEVEL_CRITICAL, format=<optimized out>, args=args at entry=0x7ffc881d4090) at ../glib/gmessages.c:1373
#2  0x00007ff6dcba2393 in g_log (log_domain=<optimized out>, log_level=<optimized out>, format=<optimized out>) at ../glib/gmessages.c:1415
#3  0x00007ff6e34feb67 in void WTF::__destroy_op_table<WTF::Variant<WTF::Vector<char, 0ul, WTF::CrashOnOverflow, 16ul, WTF::FastMalloc>, std::unique_ptr<SoupBuffer, WTF::GPtrDeleter<SoupBuffer> >, WTF::GRefPtr<_GBytes>, WTF::RefPtr<WebCore::GstMappedBuffer, WTF::DumbPtrTraits<WebCore::GstMappedBuffer> >, WTF::FileSystemImpl::MappedFileData>, WTF::__index_sequence<0l, 1l, 2l, 3l, 4l> >::__destroy_func<3l>(WTF::Variant<WTF::Vector<char, 0ul, WTF::CrashOnOverflow, 16ul, WTF::FastMalloc>, std::unique_ptr<SoupBuffer, WTF::GPtrDeleter<SoupBuffer> >, WTF::GRefPtr<_GBytes>, WTF::RefPtr<WebCore::GstMappedBuffer, WTF::DumbPtrTraits<WebCore::GstMappedBuffer> >, WTF::FileSystemImpl::MappedFileData>*) () at /app/webkit/WebKitBuild/Release/lib/libwebkit2gtk-4.0.so.37
#4  0x00007ff6e5a10161 in WTF::Detail::CallableWrapper<WebCore::MediaPlayerPrivateGStreamer::initializationDataEncountered(WebCore::InitData&&)::{lambda()#1}, void>::~CallableWrapper() () at /app/webkit/WebKitBuild/Release/lib/libwebkit2gtk-4.0.so.37
#5  0x00007ff6e1025dc2 in WTF::RunLoop::performWork() () at /app/webkit/WebKitBuild/Release/lib/libjavascriptcoregtk-4.0.so.18
#6  0x00007ff6e108abc9 in WTF::RunLoop::RunLoop()::{lambda(void*)#1}::_FUN(void*) () at /app/webkit/WebKitBuild/Release/lib/libjavascriptcoregtk-4.0.so.18
#7  0x00007ff6dcb9ac3e in g_main_dispatch (context=0x55b8f7078150) at ../glib/gmain.c:3309
#8  0x00007ff6dcb9ac3e in g_main_context_dispatch (context=context at entry=0x55b8f7078150) at ../glib/gmain.c:3974
#9  0x00007ff6dcb9aff0 in g_main_context_iterate (context=0x55b8f7078150, block=block at entry=1, dispatch=dispatch at entry=1, self=<optimized out>) at ../glib/gmain.c:4047
#10 0x00007ff6dcb9b2e3 in g_main_loop_run (loop=0x55b8f70a5bd0) at ../glib/gmain.c:4241
#11 0x00007ff6e108b6d0 in WTF::RunLoop::run() () at /app/webkit/WebKitBuild/Release/lib/libjavascriptcoregtk-4.0.so.18
#12 0x00007ff6e3d1314f in WebKit::WebProcessMain(int, char**) () at /app/webkit/WebKitBuild/Release/lib/libwebkit2gtk-4.0.so.37
#13 0x00007ff6db7ce183 in __libc_start_main (main=0x55b8f6050c00 <main>, argc=4, argv=0x7ffc881d4488, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7ffc881d4478) at ../csu/libc-start.c:308
#14 0x000055b8f6050c8e in _start () at ../sysdeps/x86_64/start.S:120

STDERR: Traceback (most recent call last):
STDERR: File "<string>", line 3, in <module>
STDERR: ModuleNotFoundError: No module named 'webkit'
STDERR: /home/slave/.gdbinit:7: Error in sourced command file:
STDERR: Error while executing Python code.
STDERR:
STDERR: warning: core file may not match specified executable file.
STDERR: ../gst/gstpad.c:4544:gst_pad_push_data:<qtdemux0:audio_0> Got data flow before stream-start event
STDERR: ../gst/gstpad.c:4549:gst_pad_push_data:<qtdemux0:audio_0> Got data flow before segment event
STDERR: ../gst/gstpad.c:4544:gst_pad_push_data:<qtdemux1:video_0> Got data flow before stream-start event
STDERR: ../gst/gstpad.c:4549:gst_pad_push_data:<qtdemux1:video_0> Got data flow before segment event
STDERR:
STDERR: (WebKitWebProcess:32470): GStreamer-CRITICAL **: 17:28:50.976: gst_buffer_unmap: assertion 'GST_IS_BUFFER (buffer)' failed

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