TSan: data race js/src/../../js/src/shell/js.cpp:5974 main

RESOLVED INCOMPLETE

Status

()

--
critical
RESOLVED INCOMPLETE
5 years ago
3 years ago

People

(Reporter: decoder, Unassigned)

Tracking

(Blocks: 1 bug)

Trunk
x86_64
Linux
Points:
---

Firefox Tracking Flags

(Not tracked)

Details

(Whiteboard: [tsan])

Attachments

(1 attachment)

(Reporter)

Description

5 years ago
Created attachment 8370099 [details]
Logfile with TSan trace

The attached logfile shows a thread/data race (mozilla-central revision 44ba69cacd7e) 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 inacceptable 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
This one is for gTimeoutFunc, a lot like bug 967544.
(Reporter)

Updated

5 years ago
Duplicate of this bug: 974419
(Assignee)

Updated

4 years ago
Assignee: general → nobody
Haven't seen this one recently; please file a new bug if it turns up again.
Status: NEW → RESOLVED
Last Resolved: 3 years ago
Resolution: --- → INCOMPLETE
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