Created attachment 584389 [details]
###!!! ASSERTION: 2nd pass should never guess wrong: 'pass == 0', file /builds/slave/m-cen-osx64-dbg/build/layout/generic/TextOverflow.cpp, line 540
Might be a regression from bug 690187.
Created attachment 584390 [details]
the try server run https://tbpl.mozilla.org/?tree=Try&rev=cab7d4e1219f
will not execute the test
"try: -b do -p all -u reftest -t none"
-u crashtest would do
Created attachment 584552 [details] [diff] [review]
We should guess 'false' for a side that is inactive.
(the rendering should be correct so there's no need to fix this on Aurora)
Created attachment 584553 [details] [diff] [review]
I'm not able to reproduce the problem. Jesse, is there any chance to remember on what FF did you catch this?
I think it was just a matter of loading the testcase in a debug build of Firefox.
I was able to see the crash on 2011-12-26-mozilla-central-debug build.
Verified fixed on FF 12 2012-04-04-mozilla-beta-debug on Win 7/64, Ubuntu 11.10 and Mac OS X 10.6.