From owner-freebsd-fs  Sat Mar  2 22:30:12 2002
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Date: Sat, 2 Mar 2002 22:30:02 -0800
From: Kris Kennaway <kris@obsecurity.org>
To: Kris Kennaway <kris@obsecurity.org>
Cc: Matthew Dillon <dillon@apollo.backplane.com>,
	Ian Dowse <iedowse@maths.tcd.ie>,
	Kirk McKusick <mckusick@mckusick.com>, Finch <dot@dotat.at>,
	fs@FreeBSD.ORG, fanf@chiark.greenend.org.uk
Subject: Re: UFS panic on -stable
Message-ID: <20020302223002.A37826@xor.obsecurity.org>
References: <20020302135914.A33051@xor.obsecurity.org> <200203022233.aa08277@salmon.maths.tcd.ie> <20020302144532.A33433@xor.obsecurity.org> <200203030528.g235Stc59042@apollo.backplane.com> <20020302221434.A37529@xor.obsecurity.org>
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In-Reply-To: <20020302221434.A37529@xor.obsecurity.org>; from kris@obsecurity.org on Sat, Mar 02, 2002 at 10:14:34PM -0800
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On Sat, Mar 02, 2002 at 10:14:34PM -0800, Kris Kennaway wrote:
> On Sat, Mar 02, 2002 at 09:28:55PM -0800, Matthew Dillon wrote:
>=20
> >     The date range needs to be narrowed down on a single machine if pos=
sible.
> >     A lot of changes were made between January 26th and February 10th:
>=20
> Yes, I'm currently running with vfs_subr.c:1.249.2.24 to determine
> whether it could be that revision or 1.249.2.25 as Ian suggested it
> could be.  So far no panics, although one of the alphas just panicked
> with the Jan 26 kernel an hour after I rebooted it, when it was doing
> nothing.

Still problems with 1.249.2.24.  Two of the i386'es just panicked too:

Fatal double fault:
eip =3D 0xc032a070
esp =3D 0xd627beb0
ebp =3D 0xd627becc
panic: double fault
Debugger("panic")
Stopped at      Debugger+0x35:  movb    $0,in_Debugger.426
db> trace
Debugger(c0368c9b) at Debugger+0x35
panic(c039a563,c039ab53,d627becc,c039ab47,d627beb0) at panic+0x70
dblfault_handler(0,0,0,0,0) at dblfault_handler+0x47
db>

/dev: bad dir ino 2 at offset 16384: mangled entry
panic: ufs_dirbad: bad dir
Debugger("panic")
Stopped at      Debugger+0x35:  movb    $0,in_Debugger.426
db>

Next stop is backing out 1.249.2.24 also.

Kris
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