Closed
Bug 1131711
Opened 9 years ago
Closed 9 years ago
TSan: data race js/src/jsgc.cpp:2211 Visit
Categories
(Core :: JavaScript: GC, defect)
Tracking
()
RESOLVED
DUPLICATE
of bug 1135100
People
(Reporter: froydnj, Unassigned)
References
(Blocks 2 open bugs)
Details
(Whiteboard: [tsan])
Attachments
(1 file)
13.75 KB,
text/plain
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Details |
[cribbing from decoder's script, hopefully he won't mind] The attached logfile shows a thread/data race detected by TSan (ThreadSanitizer). Typically, races reported by TSan are not false positives, but it is possible that the race is benign. Even in this case though, we should try to come up with a fix unless this would cause unacceptable performance issues. Also note that seemingly benign races can possibly be harmful (also depending on the compiler and the architecture) [1]. If the bug cannot be fixed, then this bug should be used to either make a compile-time annotation for blacklisting or add an entry to the runtime blacklist. [1] http://software.intel.com/en-us/blogs/2013/01/06/benign-data-races-what-could-possibly-go-wrong I found this while running dom/indexedDB/ mochitests. There seem to be a couple other GC races that come up in these tests; I'll file bugs for them, too, and y'all can tell me that they're all manifestations of the same bug. :)
Comment 1•9 years ago
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This appears to be a dup of bug 1131714.
Blocks: GC.stability
Flags: needinfo?(jcoppeard)
Updated•9 years ago
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Status: NEW → RESOLVED
Closed: 9 years ago
Flags: needinfo?(jcoppeard)
Resolution: --- → DUPLICATE
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Description
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