Bug 156733

Summary: REGRESSION: Speedometer crashes ~30% of the time
Product: WebKit Reporter: Alexey Proskuryakov <ap>
Component: JavaScriptCoreAssignee: Mark Lam <mark.lam>
Status: RESOLVED WORKSFORME    
Severity: Normal CC: fpizlo, mark.lam, webkit-bug-importer
Priority: P2 Keywords: InRadar
Version: WebKit Nightly Build   
Hardware: Unspecified   
OS: Unspecified   
Attachments:
Description Flags
crash log none

Alexey Proskuryakov
Reported 2016-04-18 22:46:45 PDT
Created attachment 276696 [details] crash log Some time around April 15, Speedometer/Full.html started to crash about 30% of the runs on El Capitan (but curiously, not on Yosemite).
Attachments
crash log (77.91 KB, text/plain)
2016-04-18 22:46 PDT, Alexey Proskuryakov 		no flags
Details
View All Add attachment proposed patch, testcase, etc.
Radar WebKit Bug Importer
Comment 1 2016-04-18 22:47:21 PDT
<rdar://problem/25796596>
Mark Lam
Comment 2 2016-04-20 16:14:28 PDT
This crash seems to be elusive. Since the crash appears to be in a GC marker thread, I tried various values of JSC_slowPathAllocsBetweenGCs, but have not prevailed in reproducing this issue yet.
Alexey Proskuryakov
Comment 3 2016-04-20 16:21:31 PDT
A link for convenience: https://build.webkit.org/builders/Apple%20El%20Capitan%20Release%20WK2%20(Perf)?numbuilds=50
Filip Pizlo
Comment 4 2016-04-26 13:19:49 PDT
Looking at this now: https://build.webkit.org/builders/Apple%20El%20Capitan%20Release%20WK2%20%28Perf%29?numbuilds=200 It seems like the bug is not happening anymore.
Alexey Proskuryakov
Comment 5 2016-04-29 10:46:25 PDT
Tried rebooting the bot, given that this started soon after a reboot. Still no crashes at all.
Note You need to log in before you can comment on or make changes to this bug.