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Date: Mon, 14 Oct 2002 20:20:57 +0300
From: Jari Ruusu <jari.ruusu@pp.inet.fi>
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To: Carl-Daniel Hailfinger <c-d.hailfinger.kernel.2002-Q4@gmx.net>
CC: linux-kernel <linux-kernel@vger.kernel.org>
Subject: Re: Loop on top of NFS hangs kernel
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Carl-Daniel Hailfinger wrote:
> I have a small problem with my configuration which results in a deadlock
> after ~1 minute. As soon as the copying hangs, I can still switch to another
> console but not execute any command or write anything to any disk. SysRq-S
> and SysRq-U both never complete and the output of SysRq-P or SysRq-T never
> hits the disk.
[snip]
> Kernel is 2.4.18-SuSE. I'm willing to try any 2.4 (or for that matter, 2.5)
> kernel or additional patches if this helps.
> 
> _This hang could also be reproduced without any encryption._

Mainline loop is buggy beyod belief (and so was SuSE's last time I looked).
Can you try to reproduce that error with this loop crypto package:

http://mail.nl.linux.org/linux-crypto/2002-10/msg00015.html

Twofish cipher in the 'ciphers' package is SuSE compatible with appropriate
mount option. Read README files in the tarballs for more information.

Regards,
Jari Ruusu <jari.ruusu@pp.inet.fi>

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