linux-ext4 - Re: ext4: media error but where?

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Message-ID: <20140704185626.GB11103@thunk.org>
Date:	Fri, 4 Jul 2014 14:56:26 -0400
From:	Theodore Ts'o <tytso@....edu>
To:	Pavel Machek <pavel@....cz>
Cc:	kernel list <linux-kernel@...r.kernel.org>,
	adilger.kernel@...ger.ca, linux-ext4@...r.kernel.org
Subject: Re: ext4: media error but where?

On Fri, Jul 04, 2014 at 07:21:04PM +0200, Pavel Machek wrote:
> 
> Is it possible that my fsck is so old it does not clear this "filesystem
> had error in past" flag? Because I strongly suspect I'll boot into
> init=/bin/bash, run fsck, it will tell me "all clean", and the messages
> will repeat in the middle of fsck run.

Yes, that's what's going on.  E2fsprogs v1.41.12 does not have the
code to clear those fields in the superblock; that code was added in
v1.41.13.

(There have also been a ****huge**** number of bug fixes since May
2010, which is when 1.41.12 was released, so I'd strongly suggest that
you upgrade to a newer version of e2fsprogs.  In particular DON'T try
resizing an an ext4 file system, either on-line or off-line with a
version of e2fsprogs that ancient; there is a very good chance you
will badly corrupt the file system.)

Cheers,

					- Ted
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