linux-ext4 - Re: Possible ext3 corruption with 1K block size

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Message-ID: <48F751E9.8070705@redhat.com>
Date:	Thu, 16 Oct 2008 09:38:33 -0500
From:	Eric Sandeen <sandeen@...hat.com>
To:	Pascal Terjan <pterjan@...driva.com>
CC:	Andrey Borzenkov <arvidjaar@...l.ru>, pterjan@...driva.org,
	linux-ext4@...r.kernel.org,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: Possible ext3 corruption with 1K block size

Pascal Terjan wrote:
> Le mercredi 15 octobre 2008 à 09:43 -0500, Eric Sandeen a écrit :
>> Andrey Borzenkov wrote:
>>> On Wednesday 15 October 2008, Eric Sandeen wrote:
>>
>>>> My kingdom for a testcase... does anyone have simple steps to reproduce
>>>> this?  Or do they all start with "install mandriva on a 1k block size
>>>> system?"  :)
>>>>
>>> May be RH will do? :)
>> I did try a 1k-block root fs Fedora install, and didn't see any problems...
>>
>>> As indicated by last comment, Pascal has some ways to trigger it; I
>>> forgot to Cc to him initially; doing it now.
>> Ok, good deal.
>>
> 
> On my test machine I reproduce it easily : rpm --rebuilddb and if the db
> is not detected to be corrupted yet it will be after installing a few
> packages (tested again with 2.6.27).
> 
> If I do the rebuilddb on a 2.6.17 and then reboot on a recent kernel,
> then I can install/uninstall thousands of packages without any
> corruption.

so it seems to be the database rebuilding, under a recent kernel, which
causes the problem?  installing under a recent kernel is ok, as long as
the db was created on an older kernel?

Ok that's a good clue...

-Eric
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