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From: Robert Watson <rwatson@FreeBSD.org>
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To: Yarema <yds@CoolRat.org>
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Cc: David Rhodus <drhodus@machdep.com>, Pawel Jakub Dawidek <pjd@freebsd.org>,
	Dennis Koegel <amf@hobbit.neveragain.de>,
	FreeBSD-current@freebsd.org, Martin Machacek <m@m3a.net>,
	Kris Kennaway <kris@obsecurity.org>,
	Dmitry Pryanishnikov <dmitry@atlantis.dp.ua>,
	FreeBSD-gnats-submit@freebsd.org
Subject: Re: kern/93942: panic: ufs_dirbad: bad dir
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On Thu, 2 Mar 2006, Yarema wrote:

> options	UFS_EXTATTR
> options	UFS_EXTATTR_AUTOSTART

If you disable just UFS_EXTATTR_AUTOSTART, does the panic go away?  The 
autostart routine relies on reading directory data (or at least, performing 
lookups) during the mount process.  While it shouldn't be running on UFS2, it 
could be that it is, and if something has changed in the mount process so that 
reading directories that early is no longer functional, it could be that this 
causes an incorrect reporting of on-disk corruption (i.e., it could be a data 
structure initialization problem or the like).

Robert N M Watson