On my facebook account, using/opening the chat widjet to render at the bottom of the window - makes WebKit r67838 use up 100% and 10 threads and will not respond indefinitely. Need to force quit to close.
Could you please attach a spin log? You cat get one by double-clicking the Safari process in Activity Monitor.app (in Applications/Utilities folder), and then clicking Sample button.
Created attachment 68366 [details] requested spin log
Created attachment 68369 [details] new sample of spin log First log, I wasn't able to turn off all extensions that I'm using. So I've attached another sample with extensions disabled.
Thank you! Hopefully, this is the same as bug 46049, which was recently fixed. Could you please try with a nightly newer than 67849, when it becomes available?
Will do when it's out.
This is a different but than 46049. I have reduced the issue to a test case and am actively working on it.
Created attachment 68457 [details] Patch to properly handle transition between non-looping and looping alternatives.
Comment on attachment 68457 [details] Patch to properly handle transition between non-looping and looping alternatives. View in context: https://bugs.webkit.org/attachment.cgi?id=68457&action=review > JavaScriptCore/yarr/RegexJIT.cpp:1320 > + // If we get here, there the last input checked failed. Typo, 'then' instead of 'there'? r+ with a fix for the typo.
Created attachment 68465 [details] Prior patch with comment typo fixed.
Committed r68100: <http://trac.webkit.org/changeset/68100>
*** Bug 46257 has been marked as a duplicate of this bug. ***
Created attachment 68549 [details] r68077 spin log Using r68077. Still crashing on enabling chat widget, spin log attached.
Please try on r68100 as described in comment #10.
*** Bug 46353 has been marked as a duplicate of this bug. ***
*** Bug 46394 has been marked as a duplicate of this bug. ***
*** Bug 46393 has been marked as a duplicate of this bug. ***
*** Bug 46411 has been marked as a duplicate of this bug. ***
Using r68204, Facebook chat doesn't hang the browser anymore.
Flickr Javascript crash also fixed from bug 46393 with build r68204.