Date: Wed, 3 Feb 2010 03:56:32 +0000 (UTC) From: David Xu <davidxu@FreeBSD.org> To: cvs-src-old@freebsd.org Subject: cvs commit: src/sys/kern kern_umtx.c Message-ID: <201002030356.o133ujVK072607@repoman.freebsd.org>
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davidxu 2010-02-03 03:56:32 UTC
FreeBSD src repository
Modified files:
sys/kern kern_umtx.c
Log:
SVN rev 203414 on 2010-02-03 03:56:32Z by davidxu
After busied the lock, re-read state word before checking waiters flag,
otherwise, the waiters bit may not be set and a wakeup is lost.
Submitted by: justin.teller at gmail dot com
MFC after: 3 days
Revision Changes Path
1.80 +12 -0 src/sys/kern/kern_umtx.c
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