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Message-ID: <20081030213400.GA28900@ajones-laptop.nbttech.com>
Date:	Thu, 30 Oct 2008 14:34:00 -0700
From:	Arthur Jones <ajones@...erbed.com>
To:	Eric Sandeen <sandeen@...hat.com>
CC:	"linux-ext4@...r.kernel.org" <linux-ext4@...r.kernel.org>,
	"sct@...hat.com" <sct@...hat.com>,
	"akpm@...ux-foundation.org" <akpm@...ux-foundation.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: ext3: slow symlink corruption on umount...

Hi Eric,  ...

On Thu, Oct 30, 2008 at 11:03:49AM -0700, Eric Sandeen wrote:
> [...]
> Something is definitely racy here; in my simple testcase I get failures
> maybe 30-50% of the time...

Some more info: in the working case, the inodes are put
back on sb->s_dirty at then next ext3_sync_fs() call:

__fsync_super -> DQUOT_SYNC -> ext3_sync_fs -> log_wait_commit

In the failing case, journal_start_commit returns 0 in ext_sync_fs
and the inodes disappear into never-never land...

Arthur
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