Bug 89529 – [Chromium][Mac] Assertion failure in null_audio_sink.cc running WebGL video layout test on 10.5 debug bots

• Component: Media
• Status: RESOLVED FIXED

[Kenneth Russell]

The assertion failure below is seen in the Chromium side code while running fast/canvas/webgl/tex-image-and-sub-image-2d-with-video.html on the Webkit Mac10.5 (dbg)(1) bot. See:

http://build.chromium.org/p/chromium.webkit/builders/Webkit%20Mac10.5%20%28dbg%29%281%29/builds/8292

Flakiness dashboard:

http://test-results.appspot.com/dashboards/flakiness_dashboard.html#tests=fast%2Fcanvas%2Fwebgl%2Ftex-image-and-sub-image-2d-with-video.html

It looks like this assertion failure happens periodically and wasn't triggered by any particular change. It isn't reproducible on my 10.6 machine.


crash log for DumpRenderTree (pid 1564):
STDOUT: <empty>
STDERR: [1564:-1186639872:1311434366506:FATAL:null_audio_sink.cc(97)] Check failed: playback_rate_ > 0.0f (0 vs. 0)
STDERR: Backtrace:
STDERR: 	0   DumpRenderTree                      0x6c1ede7f start + 8672871
STDERR: 	1   DumpRenderTree                      0x6c1ede1b start + 8672771
STDERR: 	2   DumpRenderTree                      0x6c23d38c start + 8997748
STDERR: 	3   DumpRenderTree                      0x6c23be7b start + 8992355
STDERR: 	4   DumpRenderTree                      0x6f70e5d4 start + 64380348
STDERR: 	5   DumpRenderTree                      0x6f7107d4 start + 64389052
STDERR: 	6   DumpRenderTree                      0x6f7106d3 start + 64388795
STDERR: 	7   DumpRenderTree                      0x6f71061c start + 64388612
STDERR: 	8   DumpRenderTree                      0x6c256e3b start + 9102883
STDERR: 	9   DumpRenderTree                      0x6c254378 start + 9091936
STDERR: 	10  DumpRenderTree                      0x6c254721 start + 9092873
STDERR: 	11  DumpRenderTree                      0x6c254cd8 start + 9094336
STDERR: 	12  DumpRenderTree                      0x6c2665e5 start + 9166285
STDERR: 	13  DumpRenderTree                      0x6c253cd2 start + 9090234
STDERR: 	14  DumpRenderTree                      0x6c252feb start + 9086931
STDERR: 	15  DumpRenderTree                      0x6c252f30 start + 9086744
STDERR: 	16  DumpRenderTree                      0x6c305532 start + 9817370
STDERR: 	17  DumpRenderTree                      0x6c3056e3 start + 9817803
STDERR: 	18  DumpRenderTree                      0x6c303806 start + 9809902
STDERR: 	19  libSystem.B.dylib                   0x94e1a055 _pthread_start + 321
STDERR: 	20  libSystem.B.dylib                   0x94e19f12 thread_start + 34
STDERR:

[Ami Fischman]

Created attachment 155679 [details]
Patch

[WebKit Review Bot]

Comment on attachment 155679 [details]
Patch

Rejecting attachment 155679 [details] from commit-queue.

New failing tests:
http/tests/media/media-source/video-media-source-play.html
Full output: http://queues.webkit.org/results/13391923

[WebKit Review Bot]

Created attachment 155711 [details]
Archive of layout-test-results from gce-cq-02

The attached test failures were seen while running run-webkit-tests on the commit-queue.
Bot: gce-cq-02  Port: <class 'webkitpy.common.config.ports.ChromiumXVFBPort'>  Platform: Linux-2.6.39-gcg-201203291735-x86_64-with-Ubuntu-10.04-lucid

[WebKit Review Bot]

Comment on attachment 155679 [details]
Patch

Clearing flags on attachment: 155679

Committed r124300: <http://trac.webkit.org/changeset/124300>

[WebKit Review Bot]

All reviewed patches have been landed.  Closing bug.