Date: Wed, 28 Sep 2011 16:27:39 +0300 From: Jaakko Heinonen <jh@FreeBSD.org> To: freebsd-current@freebsd.org, freebsd-ia64@freebsd.org Subject: Re: ia64 r225789 panic during "make installworld": Bad buffer logic, remain = 0 Message-ID: <20110928132739.GB5077@jh> In-Reply-To: <20110928083909.GA52495@mech-cluster241.men.bris.ac.uk> References: <20110928083909.GA52495@mech-cluster241.men.bris.ac.uk>
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On 2011-09-28, Anton Shterenlikht wrote: > KDB: stack backtrace: > getenv with the following non-sleepable locks held: > exclusive sleep mutex vnode interlock (vnode interlock) r = 0 (0xe000000011950488) locked @ /usr/src/sys/fs/devfs/devfs_vnops.c:406 > > etc. until a hang, requiring cold reset via MP. Someone is calling getenv with a vnode interlock held. You need to figure out the caller. Unfortunately the backtrace is missing above. As a temporary workaround you could comment the WITNESS_WARN() line in getenv() (sys/kern/kern_environment.c) but it is not a real fix. -- Jaakko
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