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Date:      Sat, 23 Nov 2002 15:06:18 -0600
From:      "Alan L. Cox" <alc@imimic.com>
To:        Marc Recht <marc@informatik.uni-bremen.de>
Cc:        current@FreeBSD.ORG, alc@freebsd.org
Subject:   Re: panic in latest pmap.c
Message-ID:  <3DDFEDCA.15889E06@imimic.com>
References:  <2510000.1038084559@leeloo.intern.geht.de>

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Marc Recht wrote:
> 
> Hi!
> 
> I got this with the latest pmap.c
> Nov 23 17:43:07 leeloo kernel: panic: mutex vm page queue mutex not owned
> at ../../../i386/i386/pmap.c:1881
> Nov 23 17:43:07 leeloo kernel:
> Nov 23 17:43:07 leeloo kernel: syncing disks, buffers remaining... panic:
> bremfree: bp 0xd359d584 not locked
> Nov 23 17:43:07 leeloo kernel: Uptime: 9m10s
> Nov 23 17:43:07 leeloo kernel: pfs_vncache_unload(): 2 entries remaining
> 
>  * $FreeBSD: src/sys/i386/i386/pmap.c,v 1.371 2002/11/23 04:48:13 alc Exp $
> 
> Regards,
> Marc

Can you re-cvsup and update just to make sure everything is current? 
Every place that pmap_remove_all() is called appears to hold the page
queue mutex.  The only exception is long-broken code that is compiled
under ENABLE_VFS_IOOPT.

Regards,
Alan

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