linux-ext4 - Re: Wrong calculation of space remaining on a 32 bit system.

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Date:	Sun, 2 Nov 2008 15:43:52 -0500
From:	Theodore Tso <tytso@....edu>
To:	François Valenduc 
	<francois.valenduc@...ablenet.be>
Cc:	linux-ext4@...r.kernel.org
Subject: Re: Wrong calculation of space remaining on a 32 bit system.

On Sun, Nov 02, 2008 at 03:40:25PM +0100, François Valenduc wrote:
> I have already filed a bug report (see
> http://bugzilla.kernel.org/show_bug.cgi?id=11840) but unfortunately,
> nobody seems to care about it.

Hi,

	Sorry no one responded, but while the Bugzilla system is great
for tracking bugs, it's not a good place to call attention to a bug.
In fact, I'm not sure that fs_ext4@...nel-bugs.osdl.org forwards
anywhere sane (I'm checking up on that, though).  In general it's a
good idea by sending e-mail to either linux-kernel@...r.kernel.org or
(preferred) linux-ext4@...r.kernel.org.

	From your description, the ext4 filesystem thought there was
some kind of on-disk corruption or other problem with your filesystem,
and remounted it read-only.  That's consistent with your report of the
messages in the syslog of:

ext4_da_writepages: jbd2_start: 1024 pages, ino 40898; err -30

There should have been something in your logs *before* all of the err
-30 complaints, however.  Was this your root filesystem, or do you
have this saved in logfile in /var/log?  If so, can you search back
for something that occurs before all of the ext4_da_writepages error
messages?

							- Ted
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