crash stacks on unit tests, talos

[Ted Mielczarek]

#developers cornered Alice this afternoon and we closed the tree while
she landed the final patch to make Talos produce stack traces. bz then
committed a test crash, and as a result we were able to see crash
stacks in Mochitest:
http://tinderbox.mozilla.org/showlog.cgi?log=Firefox/1236887430.1236888099.13857.gz&fulltext=1#err3
(OS X)
http://tinderbox.mozilla.org/showlog.cgi?log=Firefox/1236887430.1236892748.27212.gz&fulltext=1#err3
(Linux)

as well as Talos:
http://tinderbox.mozilla.org/showlog.cgi?log=Firefox/1236887449.1236888958.18830.gz
(OS X)
http://tinderbox.mozilla.org/showlog.cgi?log=Firefox/1236887504.1236890166.22554.gz
(Linux)

Thanks to bsmedberg for doing most of the heavy lifting here, and for
Alice for taking the Talos part across the finish line. The Talos work
was mostly in bug 480577, and the unit test work was bug 481732. Note
that currently this only works in Mochitest (all 4 varieties), it will
work in Reftest/Crashtest after bug 479225 is fixed. (should be soon)

-Ted

[Johnathan Nightingale]

Hot.

I know there were several intermittent test oranges/talos reds that
were lost causes without crash data - I don't suppose we have a list
of those anywhere or standard whiteboard terminology? Either way, I
suspect they won't take too long to show up again...

Hot.

J

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Johnathan Nightingale
Human Shield
joh...@mozilla.com

[Mike Shaver]

It's already saved us a ton of time on tracemonkey, helping us finger
a patch for quick backout. You folks are heroes.

Mike

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