Date: Wed, 15 Aug 2007 17:10:48 +0800 From: "Nex Mon" <sugarfreemonkey@gmail.com> To: "Roman Divacky" <rdivacky@freebsd.org> Cc: freebsd-hackers@freebsd.org Subject: Re: questions on nonsleepable lock Message-ID: <1fc8a2a60708150210i73f8cb9evd60747bc3fb314e3@mail.gmail.com> In-Reply-To: <20070815082857.GA59064@freebsd.org> References: <1fc8a2a60708142327p3f9ff079l345d47f9ceb6f489@mail.gmail.com> <20070815082857.GA59064@freebsd.org>
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thanks for your reply. i didn't use WITNESS. it is disabled. is their a list a list of which locks are sleepable and non-sleepable in FreeBSD6.2? is sleeping triggered by a call to "sleep", IO operation or a result of context switching by kernel? thanks On 8/15/07, Roman Divacky <rdivacky@freebsd.org> wrote: > > On Wed, Aug 15, 2007 at 02:27:56PM +0800, Nex Mon wrote: > > Hello All, > > > > Can someone point me out or explain the technical details of this kernel > > panic: > > > > sleeping thread (tid 100093, pid 2676) owns nonsleepable lock > > panic: sleeping thread > > it just says that some thread owns a nonsleepable lock and went sleeping. > are you using WITNESS? >
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