Re: Issue 587523 in chromium: Media Pipeline Integration Apptests fail in debug

[c***@googlecode.com]

Comment #14 on issue 587523 by ***@chromium.org: Media Pipeline Integration
Apptests fail in debug
https://code.google.com/p/chromium/issues/detail?id=587523

wait, ignore my last comment, that was an old build. a build dependency is
missing as Ken mentioned
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Comment #15 on issue 587523 by ***@chromium.org: Media Pipeline
Integration Apptests fail in debug
https://code.google.com/p/chromium/issues/detail?id=587523

I'll take a look, fix component build and possible crash. Thanks for the
help and info!
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[c***@googlecode.com]

Comment #16 on issue 587523 by ***@chromium.org: Media Pipeline Integration
Apptests fail in debug
https://code.google.com/p/chromium/issues/detail?id=587523

I've added the component build change to
https://codereview.chromium.org/1705883002/ as it was blocking it
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Comment #18 on issue 587523 by ***@chromium.org: Media Pipeline
Integration Apptests fail in debug
https://code.google.com/p/chromium/issues/detail?id=587523

BTW, there are 52 tests in total and MediaSource_FillUp_Buffer is the only
one that fails on my local build.
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Updates:
Cc: ***@chromium.org

Comment #19 on issue 587523 by ***@chromium.org: Media Pipeline
Integration Apptests fail in debug
https://code.google.com/p/chromium/issues/detail?id=587523

+wolenetz for insights.

Ken: Did you actually see a crash? How did you find/debug it? I tried with
gdb but I am really not good at it when using mojo_runner.

I played with this a bit more and here are observations and questions. It
seems this issue is timing related.

In debug build MediaSource_FillUp_Buffer test always fails.

In a release build, this test passes, but I can easily make it fail by
simply add more logs in the destructor of SourceBufferRange (to make it run
slower?). If I add a lot of log the test always fails. I tweaked the number
of logs a bit so I am at a point where the test is flaky :)

One thing I noticed is that when the test fails, I always see the following
at the bottom of the log:

[ERROR:child_process.cc(223)] Connection error to the shell.

Maybe it's actually crashing, then connection is lost. Then the crash is
timing related. I'll dig more on this.
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