Date: Tue, 16 Aug 2005 14:22:38 +0200 From: des@des.no (=?iso-8859-1?q?Dag-Erling_Sm=F8rgrav?=) To: Garry Belka <garry@NetworkPhysics.COM> Cc: freebsd-stable@freebsd.org Subject: Re: 5.4-STABLE panic in propagate_priority() and a tentative patch Message-ID: <86vf26kr5d.fsf@xps.des.no> In-Reply-To: <42F3DC53.1060506@networkphysics.com> (Garry Belka's message of "Fri, 05 Aug 2005 14:38:27 -0700") References: <42F3DC53.1060506@networkphysics.com>
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Garry Belka <garry@NetworkPhysics.COM> writes: > We saw several panics of the same kind on different systems running > 5.4-STABLE. The panic was in propagate_priority() and was ultimately > traced to vget() call in pfs_vncache_alloc(). vget() is called under > global pfs mutex. When vget() sleeps, propagate_priority() in a > different thread comes across a sleeping thread that owns a blocked > mutex, and that causes a panic. Could you please file a PR about this issue, with the patch attached? (use 'send-pr -a /path/to/patch' to avoid clobbering whitespace) DES --=20 Dag-Erling Sm=F8rgrav - des@des.no
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