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Bug #1331
closed
[PATCH] libthread_xu: fix problem with umtx errno override
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Description
Simon Schubert found a bug today which causes an undesired value in
errno in a threaded context if a umtx syscall also returns an error.
This is the new fix:
http://gitweb.dragonflybsd.org/~alexh/dragonfly.git/commit/ac9d39b6181ccc289f198a8e80fae624aa7d3b2a
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Updated by alexh over 15 years ago
Attached is a test case. Before the fix, when using an argument of 100 or so and
trying a few times, one will see one or more "thread tester error: Device busy".
This Device Busy comes from umtx and not readdir.
After applying the patch that error doesn't occur anymore.
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