1) Enable the debugger by setting devtools.debugger.enabled to true and restart
2) Visit http://www.mozilla.org/
3) cmd-opt-S to open the script debugger and then quickly reload the page:
Assertion failure: hasAnalysis(), at /Users/past/src/fx-team/js/src/jsinferinlines.h:1416
Created attachment 602303 [details]
Crash log that appeared in the OS X popup
Possibly useful data: there are a few seconds of beachballing between the assertion and the SIGSEGV message.
Assigning medium priority for now since it doesn't look like it's blocking you. Let me know if that's not right.
I would be a little surprised if this didn't turn out to be a dup of bug 725733, even though it's a different assertion, different stack.
I'll try to get that one moving.
K9O triage question: are we going to have script debugger in scope for K9O?
Yes, it's in scope for k9o. Is this a dependency?
It seems to be fixed now, so apparently it was a dup of bug 725733.