RESOLVED FIXED 186237
FunctionRareData::m_objectAllocationProfileWatchpoint is racy 
https://bugs.webkit.org/show_bug.cgi?id=186237
Summary FunctionRareData::m_objectAllocationProfileWatchpoint is racy
Filip Pizlo
Reported 2018-06-02 10:31:09 PDT
We initialize it blind and let it go into auto-watch mode once the DFG adds a watchpoint, but that means that we never notice that it fired if it fires between when the DFG decides to watch it and when it actually adds the watchpoint.
Attachments
the patch (3.53 KB, patch)
2018-06-02 10:34 PDT, Filip Pizlo 		saam: review+
DetailsFormatted DiffDiff
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Filip Pizlo
Comment 1 2018-06-02 10:34:05 PDT
Created attachment 341847 [details] the patch
Filip Pizlo
Comment 2 2018-06-07 14:01:34 PDT
Landed in https://trac.webkit.org/changeset/232598/webkit
Radar WebKit Bug Importer
Comment 3 2018-06-07 14:02:24 PDT
<rdar://problem/40909445>
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