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Date: Wed, 11 Feb 2004 02:14:51 -0800
From: Kris Kennaway <kris@obsecurity.org>
To: Olivier Cortes <olive@deep-ocean.net>
Message-ID: <20040211101451.GA56488@xor.obsecurity.org>
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cc: freebsd-current@freebsd.org
Subject: Re: lock order reversal in CURRENT as of yesterday
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On Wed, Feb 11, 2004 at 10:10:17AM +0100, Olivier Cortes wrote:
> Hi,
>=20
> while copying the ports tree (with tar | tar) from /dev/ad3s1d to
> /dev/ad0s3d. Not many processes on this box, it's a temporary install.
>=20
> kernel is GENERIC whith {firewire,sbp2,fwe} commented out, and ehci
> added (everytime i plug in some usb2 stuff, it panics, but that's
> another problem i'll help to debug later...).
>=20
>=20
> FreeBSD scylla.deep-ocean.local 5.2-CURRENT FreeBSD 5.2-CURRENT #1: Tue F=
eb 10 16:59:58 CET 2004     olive@scylla.deep-ocean.local:/usr/obj/usr/src/=
sys/SCYLL  i386
>=20
> lock order reversal
>  1st 0xc65ab108 vm object (vm object) @ /usr/src/sys/vm/swap_pager.c:1314
>  2nd 0xc089e320 swap_pager swhash (swap_pager swhash) @ /usr/src/sys/vm/s=
wap_pager.c:1822
>  3rd 0xc1041b58 vm object (vm object) @ /usr/src/sys/vm/uma_core.c:886
> Stack backtrace:

FAQ; this is harmless.

Kris

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