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Date:      Mon, 21 Apr 2003 01:35:44 -0500
From:      "Alan L. Cox" <alc@imimic.com>
To:        Pawel Worach <pawel.worach@telia.com>
Cc:        current@FreeBSD.org
Subject:   Re: LOR in vm
Message-ID:  <3EA39140.2690A350@imimic.com>
References:  <000001c307b8$4270ee20$1401a8c0@corona>

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Pawel Worach wrote:
> 
> Latest current built at:
> FreeBSD 5.0-CURRENT #0: Mon Apr 21 04:27:00 CEST 2003
> dumps this on the console right after boot is done.
> 
>  1st 0xc03bd860 vm page queue mutex (vm page queue mutex) @
> /usr/src/sys/vm/vm_pageout.c:401
>  2nd 0xc2646a18 vm object (vm object) @ /usr/src/sys/vm/vm_object.c:752
> Stack backtrace:
> backtrace(c0333c2a,c2646a18,c0340a8a,c0340a8a,c0340a94) at backtrace+0x17
> witness_lock(c2646a18,8,c0340a94,2f0,c0307412) at witness_lock+0x5cc
> _mtx_lock_flags(c2646a18,0,c0340a94,2f0,10) at _mtx_lock_flags+0x64
> vm_object_page_clean(c2646a18,0,0,0,0) at vm_object_page_clean+0x332
> vfs_msync(c242ba00,2,2,c0eb0980,c242ba00) at vfs_msync+0x1b5
> sync_fsync(cd24ecd0,20002,c0eb0980,6b1,0) at sync_fsync+0x14b
> sched_sync(0,cd24ed48,c032fe9d,313,0) at sched_sync+0x17e
> fork_exit(c021d270,0,cd24ed48) at fork_exit+0xae
> fork_trampoline() at fork_trampoline+0x1a
> --- trap 0x1, eip = 0, esp = 0xcd24ed7c, ebp = 0 ---
> 

Thanks.  I see what is happening.

Alan



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