Date: Tue, 8 May 2007 21:49:59 +0000 (UTC) From: John Baldwin <jhb@FreeBSD.org> To: src-committers@FreeBSD.org, cvs-src@FreeBSD.org, cvs-all@FreeBSD.org Subject: cvs commit: src/sys/kern kern_condvar.c kern_synch.c Message-ID: <200705082149.l48LnxIp061129@repoman.freebsd.org>
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jhb 2007-05-08 21:49:59 UTC
FreeBSD src repository
Modified files:
sys/kern kern_condvar.c kern_synch.c
Log:
Fix a potential LOR with sx_sleep() and cv_wait() with sx locks by
1) adding the thread to the sleepq via sleepq_add() before dropping the
lock, and 2) dropping the sleepq lock around calls to lc_unlock() for
sleepable locks (i.e. locks that use sleepq's in their implementation).
Revision Changes Path
1.61 +25 -5 src/sys/kern/kern_condvar.c
1.294 +7 -1 src/sys/kern/kern_synch.c
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