linux-ext4 - Re: large file system & high object count testing

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Message-ID: <150c16850908311425vbc1c0a1if2a7d8ed56f650f5@mail.gmail.com>
Date:	Mon, 31 Aug 2009 14:25:08 -0700
From:	Justin Maggard <jmaggard10@...il.com>
To:	Ric Wheeler <rwheeler@...hat.com>
Cc:	Andreas Dilger <adilger@....com>, linux-ext4@...r.kernel.org,
	"Ted Ts'o" <tytso@...nk.org>
Subject: Re: large file system & high object count testing

On Aug 31, 2009  13:02 -0400, Ric Wheeler wrote:
> Mount after fsck:
> Aug 31 12:27:12 megadeth kernel: EXT4-fs (dm-75):
> ext4_check_descriptors: Checksum for group 487 failed (59799!=46827)
> Aug 31 12:27:12 megadeth kernel: EXT4-fs (dm-75): group descriptors
> corrupted!

Ah, so it's not just me.  It looks like you're seeing the exact same
thing I reported a few days ago in the ">16TB issues" thread.  You
don't even have to do anything fancy to make this happen.  My test
case involves simply creating 5 directories on the newly-created
64-bit filesystem, and running e2fsck on it immediately after
unmounting to get the same results.

-Justin
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