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To: Mark Murray <mark@grondar.za>
Cc: Evan Sarmiento <evms@cs.bu.edu>, freebsd-current@FreeBSD.ORG
Subject: Re: panic on mount 
In-Reply-To: <200109231656.f8NGuXE00513@grimreaper.grondar.za> 
Date: Sun, 23 Sep 2001 16:43:21 -0700
From: Peter Wemm <peter@wemm.org>
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Mark Murray wrote:
> > 
> > After compiling a new kernel, installing it, when my laptop
> > tries to mount its drive, it panics with this message:
> > 
> > panic: lock (sleep mutex) vnode interlock not locked  @
> > ../../../kern/vfs_default.c:460
> > 
> > which is:
> > 
> >       if (ap->a_flags & LK_INTERLOCK)
> > 	 mtx_unlock(&ap->a_vp->v_interlock);
> 
> I get exactly the same thing.
> 
> Manual bactrace is:
> 
> panic
> witness_unlock
> _mtx_unlock_flags
> vop_nolock
> vop_defaultop
> vn_lock
> ffs_mountfs
> ffs_mount
> vfs_mountroot_try
> vfs_mountroot
> mi_startup
> begin

Eww.  I was looking at this as an Alpha SMP bug.  I was just about to
compile an x86 kernel with the same debug options in case it was a generic
problem.  :-(

Cheers,
-Peter
--
Peter Wemm - peter@FreeBSD.org; peter@yahoo-inc.com; peter@netplex.com.au
"All of this is for nothing if we don't go to the stars" - JMS/B5


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