801825 - 100% cpu firefox lockup when dragging google maps

Status: RESOLVED DUPLICATE of bug 799282

(Core :: JavaScript Engine, defect)

Description

[Jonathan Protzenko [:protz]]

Starting today, running an up-to-date Aurora, while browsing a map on Google Maps, I got a 100% cpu lockup of Firefox. No way to recover, I had to manually kill it. I don't have any more STR other than "try to look at the map of Singapore on Google Maps and start dragging around", but I'll try to manually SIGSEGV Firefox to generate a crash report.

I'm available to provide any information if needed :).

Comment 1

[Jonathan Protzenko [:protz]]

Happened again for the third time in a row, manually crashed Firefox, got

https://crash-stats.mozilla.com/report/index/0917b2cd-eec1-4f43-b5a8-777762121015

Comment 2

[Jonathan Protzenko [:protz]]

Reproducible on another computer. I'm raising to major and trying to reassign to Javascript component based on what's on the stack at the time of the crash.

Comment 3

[Marty Rosenberg [:mjrosenb]]

looks like bug 799282 strikes again. I pushed a fix for it a few hours ago.  I'm going to mark this as a duplicate, but feel free to re-open it if that patch doesn't make this go away.