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Subject: crypto-loop + highmen -> random crashes in -test11
From: Soeren Sonnenburg <kernel@nn7.de>
To: akpm@osdl.org
Cc: Linux Kernel <linux-kernel@vger.kernel.org>
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Date: Tue, 16 Dec 2003 11:30:49 +0100
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Hi.

I get random crashes/corruption/ init kills when I use cryptoloop on
this highmem enabled ppc machine.

Applying the loop-* patches at
http://www.kernel.org/pub/linux/kernel/people/akpm/patches/2.6/2.6.0-test10/2.6.0-test10-mm1/broken-out

seem to fix this problem (at least I did not get any crash due to
cryptoloop in the last 2 days)

Steps to reproduce:

dd if=/dev/zero of=/file bs=1M count=100
losetup -e blowfish /dev/loop0 /file
Password:
mkfs -t ext3 /dev/loop0
mount /dev/loop0 /mnt
cd /mnt  
dd if=/dev/zero of=bla

gives you nice unpredictable crashes.


Soeren