Bug 224767 – [GStreamer] imported/w3c/web-platform-tests/media-source/mediasource-changetype-play-implicit.html flaky crash

• Status: NEW
• Component: Platform

[Philippe Normand]

On WPE at least:

STDERR: ** (WPEWebProcess:31378): CRITICAL **: 07:34:59.834: gst_video_frame_map_id: assertion 'info->finfo->format == meta->format' failed

Thread 1 (Thread 0x7fdf537fe700 (LWP 1611)):
#0  g_logv (log_domain=0x0, log_level=G_LOG_LEVEL_CRITICAL, format=<optimized out>, args=<optimized out>) at ../glib/gmessages.c:1413
#1  0x00007ff8b8e5a973 in g_log (log_domain=log_domain@entry=0x0, log_level=log_level@entry=G_LOG_LEVEL_CRITICAL, format=format@entry=0x7ff8b8eb2ad0 "%s: assertion '%s' failed") at ../glib/gmessages.c:1451
#2  0x00007ff8b8e5b19d in g_return_if_fail_warning (log_domain=log_domain@entry=0x0, pretty_function=pretty_function@entry=0x7ff8b5df37b0 <__func__.4> "gst_video_frame_map_id", expression=expression@entry=0x7ff8b5df35d8 "info->finfo->format == meta->format") at ../glib/gmessages.c:2883
#3  0x00007ff8b5dd522c in gst_video_frame_map_id (frame=0x7ff8002b3010, info=0x7fdf537fb790, buffer=0x7fdf88304ea0 [GstBuffer], id=-1, flags=(GST_MAP_READ | unknown: 131072)) at ../gst-libs/gst/video/video-frame.c:91
#4  0x00007ff8bdfa0c14 in WebCore::GstVideoFrameHolder::GstVideoFrameHolder(_GstSample*, WTF::Optional<WebCore::GstVideoDecoderPlatform>, int, bool) () at /app/webkit/WebKitBuild/Release/lib/libWPEWebKit-1.0.so.3
#5  0x00007ff8bdce78f5 in WebCore::MediaPlayerPrivateGStreamer::pushTextureToCompositor() () at /app/webkit/WebKitBuild/Release/lib/libWPEWebKit-1.0.so.3
#6  0x00007ff8bdcda4fc in webKitGLVideoSinkSetMediaPlayerPrivate::{lambda(_GstElement*, WebCore::MediaPlayerPrivateGStreamer*)#2}::_FUN(_GstElement*, WebCore::MediaPlayerPrivateGStreamer*) () at /app/webkit/WebKitBuild/Release/lib/libWPEWebKit-1.0.so.3
#7  0x00007ff8b4cddf75 in ffi_call_unix64 () at ../src/x86/unix64.S:101
#8  0x00007ff8b4cdd369 in ffi_call_int (cif=<optimized out>, fn=<optimized out>, rvalue=<optimized out>, avalue=<optimized out>, closure=<optimized out>) at ../src/x86/ffi64.c:669
#9  0x00007ff8b59ffefa in g_cclosure_marshal_generic_va (closure=closure@entry=0x55cc63c064f0, return_value=return_value@entry=0x7fdf537fbcd0, instance=instance@entry=0x55cc63896880, args_list=args_list@entry=0x7fdf537fbd80, marshal_data=marshal_data@entry=0x0, n_params=n_params@entry=0, param_types=<optimized out>) at ../gobject/gclosure.c:1624
#10 0x00007ff8b59ff179 in _g_closure_invoke_va (closure=closure@entry=0x55cc63c064f0, return_value=return_value@entry=0x7fdf537fbcd0, instance=instance@entry=0x55cc63896880, args=args@entry=0x7fdf537fbd80, n_params=0, param_types=0x0) at ../gobject/gclosure.c:873
#11 0x00007ff8b5a187df in g_signal_emit_valist (instance=0x55cc63896880, signal_id=<optimized out>, detail=0, var_args=var_args@entry=0x7fdf537fbd80) at ../gobject/gsignal.c:3406
#12 0x00007ff8b5a189c3 in g_signal_emit (instance=instance@entry=0x55cc63896880, signal_id=<optimized out>, detail=detail@entry=0) at ../gobject/gsignal.c:3553
#13 0x00007ff8b5fb6ccc in gst_app_sink_preroll (psink=0x55cc63896880 [GstAppSink|webkit-gl-video-appsink], buffer=<optimized out>) at ../gst-libs/gst/app/gstappsink.c:840
#14 0x00007ff8b5f63b43 in gst_base_sink_do_preroll (sink=sink@entry=0x55cc63896880 [GstAppSink|webkit-gl-video-appsink], obj=obj@entry=0x7fdf88304ea0 [GstBuffer]) at ../libs/gst/base/gstbasesink.c:2503
#15 0x00007ff8b5f645fc in gst_base_sink_do_sync (basesink=basesink@entry=0x55cc63896880 [GstAppSink|webkit-gl-video-appsink], obj=obj@entry=0x7fdf88304ea0 [GstBuffer], late=late@entry=0x7fdf537fc0b0, step_end=step_end@entry=0x7fdf537fc0b4) at ../libs/gst/base/gstbasesink.c:2728
#16 0x00007ff8b5f65e25 in gst_base_sink_chain_unlocked (basesink=basesink@entry=0x55cc63896880 [GstAppSink|webkit-gl-video-appsink], obj=obj@entry=0x7fdf88304ea0, is_list=is_list@entry=0, pad=<optimized out>) at ../libs/gst/base/gstbasesink.c:3908
#17 0x00007ff8b5f67c10 in gst_base_sink_chain_main (basesink=0x55cc63896880 [GstAppSink|webkit-gl-video-appsink], pad=<optimized out>, obj=0x7fdf88304ea0, is_list=0) at ../libs/gst/base/gstbasesink.c:4067
#18 0x00007ff8b8c4b89d in gst_pad_chain_data_unchecked (pad=pad@entry=0x55cc6393c170 [GstPad|sink], type=type@entry=4112, data=data@entry=0x7fdf88304ea0) at ../gst/gstpad.c:4399
#19 0x00007ff8b8c4db19 in gst_pad_push_data (pad=pad@entry=0x7fdf840a78c0 [GstGhostPad|src], type=type@entry=4112, data=data@entry=0x7fdf88304ea0) at ../gst/gstpad.c:4655
#20 0x00007ff8b8c55142 in gst_pad_push (pad=pad@entry=0x7fdf840a78c0 [GstGhostPad|src], buffer=buffer@entry=0x7fdf88304ea0 [GstBuffer]) at ../gst/gstpad.c:4774
#21 0x00007ff8b8c38503 in gst_proxy_pad_chain_default (pad=<optimized out>, parent=<optimized out>, buffer=0x7fdf88304ea0 [GstBuffer]) at ../gst/gstghostpad.c:127
#22 0x00007ff8b8c4b89d in gst_pad_chain_data_unchecked (pad=pad@entry=0x7fdf90242390 [GstProxyPad|proxypad1014], type=type@entry=4112, data=data@entry=0x7fdf88304ea0) at ../gst/gstpad.c:4399
#23 0x00007ff8b8c4db19 in gst_pad_push_data (pad=pad@entry=0x7fdfac059a10 [GstPad|src], type=type@entry=4112, data=data@entry=0x7fdf88304ea0) at ../gst/gstpad.c:4655
#24 0x00007ff8b8c55142 in gst_pad_push (pad=0x7fdfac059a10 [GstPad|src], buffer=0x7fdf88304ea0 [GstBuffer]) at ../gst/gstpad.c:4774
#25 0x00007ff8b5f725d7 in gst_base_transform_chain (pad=<optimized out>, parent=0x55cc63948940 [GstCapsFilter|capsfilter197], buffer=0x7fdf537fc4a0 [None]) at ../libs/gst/base/gstbasetransform.c:2377
#26 0x00007ff8b8c4b89d in gst_pad_chain_data_unchecked (pad=pad@entry=0x7fdfac058e80 [GstPad|sink], type=type@entry=4112, data=data@entry=0x7fdf88304ea0) at ../gst/gstpad.c:4399
#27 0x00007ff8b8c4db19 in gst_pad_push_data (pad=pad@entry=0x7fdf7021db20 [GstPad|src], type=type@entry=4112, data=data@entry=0x7fdf88304ea0) at ../gst/gstpad.c:4655
#28 0x00007ff8b8c55142 in gst_pad_push (pad=0x7fdf7021db20 [GstPad|src], buffer=0x7fdf88304ea0 [GstBuffer]) at ../gst/gstpad.c:4774
#29 0x00007ff8b5f725d7 in gst_base_transform_chain (pad=<optimized out>, parent=0x55cc63b44100 [GstGLTransformation|gltransformation86], buffer=0x7fdf537fc670 [None]) at ../libs/gst/base/gstbasetransform.c:2377
#30 0x00007ff8b8c4b89d in gst_pad_chain_data_unchecked (pad=pad@entry=0x7fdf7021d8d0 [GstPad|sink], type=type@entry=4112, data=data@entry=0x7fdf88304ea0) at ../gst/gstpad.c:4399
#31 0x00007ff8b8c4db19 in gst_pad_push_data (pad=pad@entry=0x7fdf7021d1e0 [GstPad|src], type=type@entry=4112, data=data@entry=0x7fdf88304ea0) at ../gst/gstpad.c:4655
#32 0x00007ff8b8c55142 in gst_pad_push (pad=0x7fdf7021d1e0 [GstPad|src], buffer=0x7fdf88304ea0 [GstBuffer]) at ../gst/gstpad.c:4774
#33 0x00007ff8b5f725d7 in gst_base_transform_chain (pad=<optimized out>, parent=0x55cc63949300 [GstCapsFilter|capsfilter196], buffer=0x7fdf537fc840 [None]) at ../libs/gst/base/gstbasetransform.c:2377
#34 0x00007ff8b8c4b89d in gst_pad_chain_data_unchecked (pad=pad@entry=0x7fdf7021cf90 [GstPad|sink], type=type@entry=4112, data=data@entry=0x7fdf88304ea0) at ../gst/gstpad.c:4399
#35 0x00007ff8b8c4db19 in gst_pad_push_data (pad=pad@entry=0x7fdf90243db0 [GstProxyPad|proxypad1013], type=type@entry=4112, data=data@entry=0x7fdf88304ea0) at ../gst/gstpad.c:4655
#36 0x00007ff8b8c55142 in gst_pad_push (pad=pad@entry=0x7fdf90243db0 [GstProxyPad|proxypad1013], buffer=buffer@entry=0x7fdf88304ea0 [GstBuffer]) at ../gst/gstpad.c:4774
#37 0x00007ff8b8c38503 in gst_proxy_pad_chain_default (pad=<optimized out>, parent=<optimized out>, buffer=0x7fdf88304ea0 [GstBuffer]) at ../gst/gstghostpad.c:127
#38 0x00007ff8b8c4b89d in gst_pad_chain_data_unchecked (pad=pad@entry=0x7fdf840a7da0 [GstGhostPad|sink], type=type@entry=4112, data=data@entry=0x7fdf88304ea0) at ../gst/gstpad.c:4399
#39 0x00007ff8b8c4db19 in gst_pad_push_data (pad=pad@entry=0x7fdf7021c400 [GstPad|src], type=type@entry=4112, data=data@entry=0x7fdf88304ea0) at ../gst/gstpad.c:4655
#40 0x00007ff8b8c55142 in gst_pad_push (pad=0x7fdf7021c400 [GstPad|src], buffer=0x7fdf88304ea0 [GstBuffer]) at ../gst/gstpad.c:4774
#41 0x00007ff8b5f725d7 in gst_base_transform_chain (pad=<optimized out>, parent=0x55cc638b0250 [GstGLColorConvertElement|glcolorconvertelement86], buffer=0x7fdf537fcbb0 [None]) at ../libs/gst/base/gstbasetransform.c:2377
#42 0x00007ff8b8c4b89d in gst_pad_chain_data_unchecked (pad=pad@entry=0x55cc6393d890 [GstPad|sink], type=type@entry=4112, data=data@entry=0x7fdf88304ea0) at ../gst/gstpad.c:4399
#43 0x00007ff8b8c4db19 in gst_pad_push_data (pad=pad@entry=0x55cc6393d640 [GstPad|src], type=type@entry=4112, data=data@entry=0x7fdf88304ea0) at ../gst/gstpad.c:4655
#44 0x00007ff8b8c55142 in gst_pad_push (pad=0x55cc6393d640 [GstPad|src], buffer=0x7fdf88304ea0 [GstBuffer]) at ../gst/gstpad.c:4774
#45 0x00007ff8b5f725d7 in gst_base_transform_chain (pad=<optimized out>, parent=0x55cc638b05e0 [GstGLUploadElement|gluploadelement86], buffer=0x7fdf537fcd80 [None]) at ../libs/gst/base/gstbasetransform.c:2377
#46 0x00007ff8b8c4b89d in gst_pad_chain_data_unchecked (pad=pad@entry=0x55cc6393d3f0 [GstPad|sink], type=type@entry=4112, data=data@entry=0x7fdfc0014360) at ../gst/gstpad.c:4399
#47 0x00007ff8b8c4db19 in gst_pad_push_data (pad=pad@entry=0x7fdf90242130 [GstProxyPad|proxypad1015], type=type@entry=4112, data=data@entry=0x7fdfc0014360) at ../gst/gstpad.c:4655
#48 0x00007ff8b8c55142 in gst_pad_push (pad=pad@entry=0x7fdf90242130 [GstProxyPad|proxypad1015], buffer=buffer@entry=0x7fdfc0014360 [GstBuffer]) at ../gst/gstpad.c:4774
#49 0x00007ff8b8c38503 in gst_proxy_pad_chain_default (pad=<optimized out>, parent=<optimized out>, buffer=0x7fdfc0014360 [GstBuffer]) at ../gst/gstghostpad.c:127
#50 0x00007ff8b8c4b89d in gst_pad_chain_data_unchecked (pad=pad@entry=0x7fdf840a7b30 [GstGhostPad|sink], type=type@entry=4112, data=data@entry=0x7fdfc0014360) at ../gst/gstpad.c:4399
#51 0x00007ff8b8c4db19 in gst_pad_push_data (pad=pad@entry=0x7fdf44259b20 [GstGhostPad|src], type=type@entry=4112, data=data@entry=0x7fdfc0014360) at ../gst/gstpad.c:4655
#52 0x00007ff8b8c55142 in gst_pad_push (pad=pad@entry=0x7fdf44259b20 [GstGhostPad|src], buffer=buffer@entry=0x7fdfc0014360 [GstBuffer]) at ../gst/gstpad.c:4774
#53 0x00007ff8b8c38503 in gst_proxy_pad_chain_default (pad=<optimized out>, parent=<optimized out>, buffer=0x7fdfc0014360 [GstBuffer]) at ../gst/gstghostpad.c:127
#54 0x00007ff8b8c4b89d in gst_pad_chain_data_unchecked (pad=pad@entry=0x7fdfa01005c0 [GstProxyPad|proxypad1073], type=type@entry=4112, data=data@entry=0x7fdfc0014360) at ../gst/gstpad.c:4399
#55 0x00007ff8b8c4db19 in gst_pad_push_data (pad=pad@entry=0x7ff8141b7870 [GstPad|src], type=type@entry=4112, data=data@entry=0x7fdfc0014360) at ../gst/gstpad.c:4655
#56 0x00007ff8b8c55142 in gst_pad_push (pad=0x7ff8141b7870 [GstPad|src], buffer=0x7fdfc0014360 [GstBuffer]) at ../gst/gstpad.c:4774
#57 0x00007ff8b5f725d7 in gst_base_transform_chain (pad=<optimized out>, parent=0x7ff8141a2490 [GstVideoConvert|conv2], buffer=0x7fdf537fd290 [None]) at ../libs/gst/base/gstbasetransform.c:2377
#58 0x00007ff8b8c4b89d in gst_pad_chain_data_unchecked (pad=pad@entry=0x7ff8141b63a0 [GstPad|sink], type=type@entry=4112, data=data@entry=0x7fdfc0014360) at ../gst/gstpad.c:4399
#59 0x00007ff8b8c4db19 in gst_pad_push_data (pad=pad@entry=0x7ff8141b6150 [GstPad|src], type=type@entry=4112, data=data@entry=0x7fdfc0014360) at ../gst/gstpad.c:4655
#60 0x00007ff8b8c55142 in gst_pad_push (pad=0x7ff8141b6150 [GstPad|src], buffer=0x7fdfc0014360 [GstBuffer]) at ../gst/gstpad.c:4774
#61 0x00007ff8b5f725d7 in gst_base_transform_chain (pad=<optimized out>, parent=0x7ff81412fd00 [GstVideoBalance|videobalance], buffer=0x7fdf537fd460 [None]) at ../libs/gst/base/gstbasetransform.c:2377
#62 0x00007ff8b8c4b89d in gst_pad_chain_data_unchecked (pad=pad@entry=0x7fdfe8047c90 [GstPad|sink], type=type@entry=4112, data=data@entry=0x7fdfc0014360) at ../gst/gstpad.c:4399
#63 0x00007ff8b8c4db19 in gst_pad_push_data (pad=pad@entry=0x7ff8141b65f0 [GstPad|src], type=type@entry=4112, data=data@entry=0x7fdfc0014360) at ../gst/gstpad.c:4655
#64 0x00007ff8b8c55142 in gst_pad_push (pad=0x7ff8141b65f0 [GstPad|src], buffer=0x7fdfc0014360 [GstBuffer]) at ../gst/gstpad.c:4774
#65 0x00007ff8b5f725d7 in gst_base_transform_chain (pad=<optimized out>, parent=0x7ff8141ccd50 [GstVideoScale|scale], buffer=0x7fdf537fd630 [None]) at ../libs/gst/base/gstbasetransform.c:2377
#66 0x00007ff8b8c4b89d in gst_pad_chain_data_unchecked (pad=pad@entry=0x7ff8141b6840 [GstPad|sink], type=type@entry=4112, data=data@entry=0x7fdfc0014360) at ../gst/gstpad.c:4399
#67 0x00007ff8b8c4db19 in gst_pad_push_data (pad=pad@entry=0x7ff8141b6a90 [GstPad|src], type=type@entry=4112, data=data@entry=0x7fdfc0014360) at ../gst/gstpad.c:4655
#68 0x00007ff8b8c55142 in gst_pad_push (pad=0x7ff8141b6a90 [GstPad|src], buffer=0x7fdfc0014360 [GstBuffer]) at ../gst/gstpad.c:4774
#69 0x00007ff8b5f725d7 in gst_base_transform_chain (pad=<optimized out>, parent=0x7ff8141ca100 [GstVideoConvert|conv], buffer=0x7fdf537fd800 [None]) at ../libs/gst/base/gstbasetransform.c:2377
#70 0x00007ff8b8c4b89d in gst_pad_chain_data_unchecked (pad=pad@entry=0x7ff8141b6ce0 [GstPad|sink], type=type@entry=4112, data=data@entry=0x7fdfc0014360) at ../gst/gstpad.c:4399
#71 0x00007ff8b8c4db19 in gst_pad_push_data (pad=pad@entry=0x7fdfb815c5d0 [GstProxyPad|proxypad1072], type=type@entry=4112, data=data@entry=0x7fdfc0014360) at ../gst/gstpad.c:4655
#72 0x00007ff8b8c55142 in gst_pad_push (pad=pad@entry=0x7fdfb815c5d0 [GstProxyPad|proxypad1072], buffer=buffer@entry=0x7fdfc0014360 [GstBuffer]) at ../gst/gstpad.c:4774
#73 0x00007ff8b8c38503 in gst_proxy_pad_chain_default (pad=<optimized out>, parent=<optimized out>, buffer=0x7fdfc0014360 [GstBuffer]) at ../gst/gstghostpad.c:127
#74 0x00007ff8b8c4b89d in gst_pad_chain_data_unchecked (pad=pad@entry=0x7fdfac0eb3d0 [GstGhostPad|sink], type=type@entry=4112, data=data@entry=0x7fdfc0014360) at ../gst/gstpad.c:4399
#75 0x00007ff8b8c4db19 in gst_pad_push_data (pad=pad@entry=0x7fdfe80475a0 [GstPad|src], type=type@entry=4112, data=data@entry=0x7fdfc0014360) at ../gst/gstpad.c:4655
#76 0x00007ff8b8c55142 in gst_pad_push (pad=0x7fdfe80475a0 [GstPad|src], buffer=buffer@entry=0x7fdfc0014360 [GstBuffer]) at ../gst/gstpad.c:4774
#77 0x00007ff8387c2cbb in gst_queue_push_one (queue=0x7fdfe15c3b40 [GstQueue|vqueue]) at ../plugins/elements/gstqueue.c:1386
#78 gst_queue_loop (pad=<optimized out>) at ../plugins/elements/gstqueue.c:1539
#79 0x00007ff8b8c85257 in gst_task_func (task=0x7fdf68057cb0 [GstTask|vqueue:src]) at ../gst/gsttask.c:384
#80 0x00007ff8b8e7dea4 in g_thread_pool_thread_proxy (data=<optimized out>) at ../glib/gthreadpool.c:354
#81 0x00007ff8b8e7d5a1 in g_thread_proxy (data=0x7fdf8400d700) at ../glib/gthread.c:826
#82 0x00007ff8b65054d2 in start_thread (arg=<optimized out>) at pthread_create.c:477
#83 0x00007ff8b878f323 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

[Michael Catanzaro]

I'm attaching a newer backtrace from today.

Unfortunately after hitting this crash, I then got distracted by a different crash, so I no longer remember what website I was visiting when this crash occurred.

[Michael Catanzaro]

Created attachment 472323 [details]
Backtrace

[Philippe Normand]

What's in info->finfo->format and meta->format in frame 4 ?

[Michael Catanzaro]

(gdb) print info->finfo->format
$1 = GST_VIDEO_FORMAT_DMA_DRM

(gdb) print meta->format
$2 = GST_VIDEO_FORMAT_NV1

[Michael Catanzaro]

(In reply to Michael Catanzaro from comment #4)
> (gdb) print meta->format
> $2 = GST_VIDEO_FORMAT_NV1

Sorry, it's GST_VIDEO_FORMAT_NV12. I missed the last character.

[Philippe Normand]

Alicia said MSE's changeType is currently not supported.