Date: Fri, 30 Oct 2009 10:10:39 +0000 (UTC) From: Konstantin Belousov <kib@FreeBSD.org> To: cvs-src-old@freebsd.org Subject: cvs commit: src/sys/kern kern_sig.c src/sys/sys signalvar.h Message-ID: <200910301012.n9UAC6w2050998@repoman.freebsd.org>
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kib 2009-10-30 10:10:39 UTC
FreeBSD src repository
Modified files:
sys/kern kern_sig.c
sys/sys signalvar.h
Log:
SVN rev 198670 on 2009-10-30 10:10:39Z by kib
Trapsignal() and postsig() call kern_sigprocmask() with both process
lock and curproc->p_sigacts->ps_mtx. Reschedule_signals may need to have
ps_mtx locked to decide and wakeup a thread, causing recursion on the
mutex.
Inform kern_sigprocmask() and reschedule_signals() about lock state
of the ps_mtx by new flag SIGPROCMASK_PS_LOCKED to avoid recursion.
Reported and tested by: keramida
MFC after: 1 month
Revision Changes Path
1.381 +16 -20 src/sys/kern/kern_sig.c
1.82 +1 -0 src/sys/sys/signalvar.h
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