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From: Andrew Morton <akpm@osdl.org>
To: Soeren Sonnenburg <kernel@nn7.de>
Cc: linux-kernel@vger.kernel.org
Subject: Re: crypto-loop + highmen -> random crashes in -test11
Date: Tue, 16 Dec 2003 03:40:59 -0800	[thread overview]
Message-ID: <20031216034059.28db8e91.akpm@osdl.org> (raw)
In-Reply-To: <1071570648.3528.50.camel@localhost>

Soeren Sonnenburg <kernel@nn7.de> wrote:
>
> Hi.
> 
> I get random crashes/corruption/ init kills when I use cryptoloop on
> this highmem enabled ppc machine.

People have reported cryptoloop+highmem crashes on ia32 as well.  I'm not
sure if that was with -mm though.

> 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.
>

Nice, but I don't know why those patches fixed it. hrm.



  reply	other threads:[~2003-12-16 11:40 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2003-12-15 20:06 2.6 kgdb without serial port Pavel Machek
2003-12-16  6:34 ` Andrew Morton
2003-12-16 10:30   ` crypto-loop + highmen -> random crashes in -test11 Soeren Sonnenburg
2003-12-16 11:40     ` Andrew Morton [this message]
2003-12-18  8:30       ` Soeren Sonnenburg
2003-12-16 22:45     ` bill davidsen
2003-12-26 18:27   ` 2.6 kgdb without serial port Pavel Machek
2003-12-26 19:08     ` Andrew Morton
2003-12-26 21:18       ` Martin J. Bligh
2003-12-27 10:30       ` Pavel Machek

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