Bug 265206 – [GStreamer][Debug] media/encrypted-media/encrypted-media-append-encrypted-unencrypted.html is flaky crash

• Component: Media
• Status: REOPENED

[Philippe Normand]

Thread 1 (Thread 0x7f8b6dffb640 (LWP 737604)):
#0  g_logv (log_domain=0x7f8bf7f869ae "GStreamer", log_level=G_LOG_LEVEL_CRITICAL, format=<optimized out>, args=<optimized out>) at ../glib/gmessages.c:1422
#1  0x00007f8bf8e35c53 in g_log (log_domain=log_domain@entry=0x7f8bf7f869ae "GStreamer", log_level=log_level@entry=G_LOG_LEVEL_CRITICAL, format=format@entry=0x7f8bf8e99ff7 "%s: assertion '%s' failed") at ../glib/gmessages.c:1460
#2  0x00007f8bf8e36e6d in g_return_if_fail_warning (log_domain=log_domain@entry=0x7f8bf7f869ae "GStreamer", pretty_function=pretty_function@entry=0x7f8bf7fab790 <__func__.8.lto_priv.36> "gst_segment_to_stream_time", expression=expression@entry=0x7f8bf7fa965b "segment->format == format") at ../glib/gmessages.c:2930
#3  0x00007f8bf7f48893 in gst_segment_to_stream_time (segment=segment@entry=0x556fcf4f0e60, format=format@entry=GST_FORMAT_TIME, position=<optimized out>) at ../gst/gstsegment.c:527
#4  0x00007f8b98521a09 in volume_before_transform (base=0x556fcf4f0d40, buffer=<optimized out>) at ../gst/volume/gstvolume.c:696
#5  0x00007f8bf802a7b3 in gst_base_transform_chain (pad=<optimized out>, parent=0x556fcf4f0d40, buffer=0x7f89180661c0 [None]) at ../libs/gst/base/gstbasetransform.c:2339
#6  0x00007f8bf7f267a5 in gst_pad_chain_data_unchecked (pad=pad@entry=0x556fcf4a0db0, type=type@entry=4112, data=data@entry=0x7f89180661c0) at ../gst/gstpad.c:4463
#7  0x00007f8bf7f2a194 in gst_pad_push_data (pad=pad@entry=0x556fcf4fba30, type=type@entry=4112, data=data@entry=0x7f89180661c0) at ../gst/gstpad.c:4739
#8  0x00007f8bf7f2a55e in gst_pad_push (pad=0x556fcf4fba30, buffer=0x7f89180661c0 [None]) at ../gst/gstpad.c:4858
#9  0x00007f8bf802a8cb in gst_base_transform_chain (pad=<optimized out>, parent=0x556fcf4f66e0, buffer=<optimized out>) at ../libs/gst/base/gstbasetransform.c:2391
#10 0x00007f8bf7f267a5 in gst_pad_chain_data_unchecked (pad=pad@entry=0x556fcf4eea40, type=type@entry=4112, data=data@entry=0x7f89180661c0) at ../gst/gstpad.c:4463
#11 0x00007f8bf7f2a194 in gst_pad_push_data (pad=pad@entry=0x556fcf233600, type=type@entry=4112, data=data@entry=0x7f89180661c0) at ../gst/gstpad.c:4739
#12 0x00007f8bf7f2a55e in gst_pad_push (pad=0x556fcf233600, buffer=0x7f89180661c0 [None]) at ../gst/gstpad.c:4858
#13 0x00007f8bf802a8cb in gst_base_transform_chain (pad=<optimized out>, parent=0x556fcf4eb350, buffer=<optimized out>) at ../libs/gst/base/gstbasetransform.c:2391
#14 0x00007f8bf7f267a5 in gst_pad_chain_data_unchecked (pad=pad@entry=0x556fcf1f5c80, type=type@entry=4112, data=data@entry=0x7f89180661c0) at ../gst/gstpad.c:4463
#15 0x00007f8bf7f2a194 in gst_pad_push_data (pad=pad@entry=0x556fcf161070, type=type@entry=4112, data=data@entry=0x7f89180661c0) at ../gst/gstpad.c:4739
#16 0x00007f8bf7f2a55e in gst_pad_push (pad=0x556fcf161070, buffer=buffer@entry=0x7f89180661c0 [None]) at ../gst/gstpad.c:4858
#17 0x00007f8b9857a5bc in gst_queue_push_one (queue=0x556fcf4a6850) at ../plugins/elements/gstqueue.c:1388
#18 gst_queue_loop (pad=<optimized out>) at ../plugins/elements/gstqueue.c:1541
#19 0x00007f8bf7f5e911 in gst_task_func (task=0x7f89280fec80) at ../gst/gsttask.c:384
#20 0x00007f8bf8e63fb2 in g_thread_pool_thread_proxy (data=<optimized out>) at ../glib/gthreadpool.c:350
#21 0x00007f8bf8e5ec02 in g_thread_proxy (data=0x7f8b880017f0) at ../glib/gthread.c:831
#22 0x00007f8bf882a25a in start_thread (arg=<optimized out>) at pthread_create.c:442
#23 0x00007f8bf88b2fc4 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:100

STDERR: ../gst/gstpad.c:4705:gst_pad_push_data:<fdkaacdec0:src> Got data flow before segment event
STDERR: ../gst/gstpad.c:4432:gst_pad_chain_data_unchecked:<audio_0:proxypad217> Got data flow before segment event
STDERR: ../gst/gstpad.c:4705:gst_pad_push_data:<decodebin3-0:audio_0> Got data flow before segment event
STDERR: ../gst/gstpad.c:4432:gst_pad_chain_data_unchecked:<audio_0:proxypad218> Got data flow before segment event
STDERR: ../gst/gstpad.c:4705:gst_pad_push_data:<uridecodebin3:audio_0> Got data flow before segment event
STDERR: ../gst/gstpad.c:4432:gst_pad_chain_data_unchecked:<playsink:audio_sink> Got data flow before segment event
STDERR: ../gst/gstpad.c:4705:gst_pad_push_data:<audio_sink:proxypad213> Got data flow before segment event
STDERR: ../gst/gstpad.c:4432:gst_pad_chain_data_unchecked:<audiotee:sink> Got data flow before segment event
STDERR: ../gst/gstpad.c:4705:gst_pad_push_data:<audiotee:src_0> Got data flow before segment event
STDERR: ../gst/gstpad.c:4432:gst_pad_chain_data_unchecked:<streamsynchronizer10:sink_0> Got data flow before segment event
STDERR: ../gst/gstpad.c:4705:gst_pad_push_data:<streamsynchronizer10:src_0> Got data flow before segment event
STDERR: ../gst/gstpad.c:4432:gst_pad_chain_data_unchecked:<abin:sink> Got data flow before segment event
STDERR: ../gst/gstpad.c:4705:gst_pad_push_data:<sink:proxypad222> Got data flow before segment event
STDERR: ../gst/gstpad.c:4432:gst_pad_chain_data_unchecked:<filter-convert:sink> Got data flow before segment event
STDERR: ../gst/gstpad.c:4705:gst_pad_push_data:<filter-convert:src> Got data flow before segment event
STDERR: ../gst/gstpad.c:4432:gst_pad_chain_data_unchecked:<scaletempo10:sink> Got data flow before segment event
STDERR: ../gst/gstpad.c:4705:gst_pad_push_data:<scaletempo10:src> Got data flow before segment event
STDERR: ../gst/gstpad.c:4432:gst_pad_chain_data_unchecked:<aqueue:sink> Got data flow before segment event
STDERR: ../gst/gstpad.c:4705:gst_pad_push_data:<aqueue:src> Got data flow before segment event
STDERR: ../gst/gstpad.c:4432:gst_pad_chain_data_unchecked:<aconv:sink> Got data flow before segment event
STDERR: ../gst/gstpad.c:4705:gst_pad_push_data:<sink:proxypad220> Got data flow before segment event
STDERR: ../gst/gstpad.c:4432:gst_pad_chain_data_unchecked:<conv:sink> Got data flow before segment event
STDERR: ../gst/gstpad.c:4705:gst_pad_push_data:<conv:src> Got data flow before segment event
STDERR: ../gst/gstpad.c:4432:gst_pad_chain_data_unchecked:<resample:sink> Got data flow before segment event
STDERR: ../gst/gstpad.c:4705:gst_pad_push_data:<resample:src> Got data flow before segment event
STDERR: ../gst/gstpad.c:4432:gst_pad_chain_data_unchecked:<src:proxypad221> Got data flow before segment event
STDERR: ../gst/gstpad.c:4705:gst_pad_push_data:<aconv:src> Got data flow before segment event
STDERR: ../gst/gstpad.c:4432:gst_pad_chain_data_unchecked:<audio-sink:sink> Got data flow before segment event
STDERR: ../gst/gstpad.c:4705:gst_pad_push_data:<sink:proxypad208> Got data flow before segment event
STDERR: ../gst/gstpad.c:4432:gst_pad_chain_data_unchecked:<audioTee:sink> Got data flow before segment event
STDERR: ../gst/gstpad.c:4705:gst_pad_push_data:<audioTee:src_0> Got data flow before segment event
STDERR: ../gst/gstpad.c:4432:gst_pad_chain_data_unchecked:<queue11:sink> Got data flow before segment event
STDERR: ../gst/gstpad.c:4705:gst_pad_push_data:<queue11:src> Got data flow before segment event
STDERR: ../gst/gstpad.c:4432:gst_pad_chain_data_unchecked:<audioconvert22:sink> Got data flow before segment event
STDERR: ../gst/gstpad.c:4705:gst_pad_push_data:<audioconvert22:src> Got data flow before segment event
STDERR: ../gst/gstpad.c:4432:gst_pad_chain_data_unchecked:<audioresample22:sink> Got data flow before segment event
STDERR: ../gst/gstpad.c:4705:gst_pad_push_data:<audioresample22:src> Got data flow before segment event
STDERR: ../gst/gstpad.c:4432:gst_pad_chain_data_unchecked:<volume:sink> Got data flow before segment event
STDERR: gst_segment_to_stream_time: assertion 'segment->format == format' failed
STDERR: WebKitWebProcess terminated (pid 731209) for reason: crash

[Michael Catanzaro]

Same as bug #227882

*** This bug has been marked as a duplicate of bug 227882 ***

[Fujii Hironori]

The test case is still randomly crashing, but with another assertion failure.
This bug ticket is closed as a duplicate of bug#265206.
But, the test case is still marked with this bug ticket. Reopened.

https://build.webkit.org/results/WPE-Linux-64-bit-Debug-Tests/304987@main%20(13574)/media/encrypted-media/encrypted-media-append-encrypted-unencrypted-stderr.txt

ASSERTION FAILED: GST_PAD_IS_LINKED(track.entryPad.get())
../../../Source/WebCore/platform/graphics/gstreamer/mse/AppendPipeline.cpp(1178) : void WebCore::AppendPipeline::linkPadWithTrack(GstPad*, Track&)
1   0x7faea1042bd4 WebCore::AppendPipeline::linkPadWithTrack(_GstPad*, WebCore::AppendPipeline::Track&)
2   0x7faea10426ab WebCore::AppendPipeline::recycleTrackForPad(_GstPad*)
3   0x7faea103f043 WebCore::AppendPipeline::didReceiveInitializationSegment()
4   0x7faea103a7d9 operator()
5   0x7faea10566fa call
6   0x7faea0fcef0f WTF::Function<WebCore::AbortableTaskQueue::Void ()>::operator()() const
7   0x7faea0fc56ed WebCore::AbortableTaskQueue::enqueueTaskAndWait<WebCore::AbortableTaskQueue::Void>(WTF::Function<WebCore::AbortableTaskQueue::Void ()>&&)::{lambda()#1}::operator()() const
8   0x7faea0feba7c WTF::Detail::CallableWrapper<WebCore::AbortableTaskQueue::enqueueTaskAndWait<WebCore::AbortableTaskQueue::Void>(WTF::Function<WebCore::AbortableTaskQueue::Void ()>&&)::{lambda()#1}, void>::call()
9   0x7fae94d619eb WTF::Function<void ()>::operator()() const
10  0x7faea0f94aa9 WebCore::AbortableTaskQueue::Task::dispatch()
11  0x7faea0f94b5e WebCore::AbortableTaskQueue::postTask(WTF::Function<void ()>&&)::{lambda()#1}::operator()() const
12  0x7faea0febf58 WTF::Detail::CallableWrapper<WebCore::AbortableTaskQueue::postTask(WTF::Function<void ()>&&)::{lambda()#1}, void>::call()
13  0x7fae94d619eb WTF::Function<void ()>::operator()() const
14  0x7fae9a5d7e70 WTF::RunLoop::performWork()
15  0x7fae9a7c0622 operator()
16  0x7fae9a7c064a _FUN
17  0x7fae9a7c03f4 operator()
18  0x7fae9a7c0461 _FUN
19  0x7fae842be49e ???
20  0x7fae842be710 g_main_context_dispatch
21  0x7fae9a7c0de5 WTF::RunLoop::runGLibMainLoopIteration(WTF::RunLoop::MayBlock)
22  0x7fae9a7c0e54 WTF::RunLoop::runGLibMainLoop()
23  0x7fae9a7c0f1c WTF::RunLoop::run()
24  0x7fae97a70086 WebKit::AuxiliaryProcessMainBase<WebKit::WebProcess, true>::run(int, char**)
25  0x7fae97a69db7 int WebKit::AuxiliaryProcessMain<WebKit::WebProcessMainWPE>(int, char**)
26  0x7fae97a659c0 WebKit::WebProcessMain(int, char**)
27  0x55977b1cd7ed main
28  0x7fae852181ca __libc_start_call_main
29  0x7fae8521828b __libc_start_main
30  0x55977b1cd705 _start
WPEWebProcess terminated (pid 484066) for reason: crash