linux-kernel - Re: [2.6.23 PATCH 07/18] dm io: fix panic on large request

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Message-ID: <469D40BB.3030809@ce.jp.nec.com>
Date:	Tue, 17 Jul 2007 18:20:43 -0400
From:	"Jun'ichi Nomura" <j-nomura@...jp.nec.com>
To:	Patrick McHardy <kaber@...sh.net>
CC:	Alasdair G Kergon <agk@...hat.com>,
	Andrew Morton <akpm@...ux-foundation.org>, dm-devel@...hat.com,
	linux-kernel@...r.kernel.org
Subject: Re: [2.6.23 PATCH 07/18] dm io: fix panic on large request

Patrick McHardy wrote:
> Jun'ichi Nomura wrote:
>> Are you using other dm modules such as dm-multipath, dm-mirror
>> or dm-snapshot?
>> If so, can you take the output of 'dmsetup table' and 'dmsetup ls'?
> 
> No other modules.
> 
>> Do you have a reliable way to reproduce the oops which I can try?
> 
> "/etc/init.d/cryptdisk start" (debian) on a luks partition triggered
> it for me.

With today's git HEAD (commit 49c13b51a15f1ba9f6d47e26e4a3886c4f3931e2),
I tried the following but could not reproduce the oops here.
  # cryptsetup luksFormat /dev/sdb1
  # cryptsetup luksOpen /dev/sdb1 c
  # mkfs.ext3 /dev/mapper/c
  <mount it and do some I/O>

Thanks,
-- 
Jun'ichi Nomura, NEC Corporation of America

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