Date: Tue, 9 Feb 2010 01:19:10 +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: <201002090119.o191JLEx018481@repoman.freebsd.org>
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davidxu 2010-02-09 01:19:10 UTC
FreeBSD src repository
Modified files: (Branch: RELENG_7)
sys/kern kern_umtx.c
Log:
SVN rev 203694 on 2010-02-09 01:19:10Z by davidxu
MFC r203414:
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.
Approved by: re (kib)
Revision Changes Path
1.61.2.7 +12 -0 src/sys/kern/kern_umtx.c
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