linux-ext4 - Re: Fw: [BUG -mm] ext3_orphan_add() accessing corrupted list on a corrupted ext3fs

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Message-ID: <m3odod4wju.fsf@bzzz.home.net>
Date:	Thu, 01 Feb 2007 20:28:21 +0300
From:	Alex Tomas <alex@...sterfs.com>
To:	Andreas Dilger <adilger@...sterfs.com>
Cc:	Andrew Morton <akpm@...l.org>,
	"linux-ext4\@vger.kernel.org" <linux-ext4@...r.kernel.org>,
	Fengguang Wu <fengguang.wu@...il.com>
Subject: Re: Fw: [BUG -mm] ext3_orphan_add() accessing corrupted list on a corrupted ext3fs

>>>>> Andreas Dilger (AD) writes:

 AD> I don't have a comment on the actual bug here, but this is another case
 AD> where it would be nice to have multi-mount protection built into ext3...
 AD> When I last proposed this it was refused on the grounds that an external
 AD> HA manager should be doing this job but I don't think that is realistic.

can we use JBD-like approach? export some inode and MMP/whatever
would 'ping' 1st block of the inode.

thanks, Alex
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