From mboxrd@z Thu Jan  1 00:00:00 1970
From: David Miller <davem@davemloft.net>
Subject: Re: Kernel unaligned access at TPC[10101f18]
 btrfs_csum_final+0x38/0x60
Date: Fri, 05 Feb 2010 22:43:10 -0800 (PST)
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From: Christian Kujau <lists@nerdbynature.de>
Date: Fri, 5 Feb 2010 22:28:47 -0800 (PST)

> Hm, now it looks like this, but I don't know how it'd reveal more 
> information:
> 
> [  210.707051] Kernel unaligned access at TPC[10101f18] btrfs_csum_final+0x38/0x60 [btrfs]
> [  210.802236] Caller [10101f1c:btrfs_csum_final+0x3c/0x60 [btrfs]]
> [  210.874620] Kernel unaligned access at TPC[10101f18] btrfs_csum_final+0x38/0x60 [btrfs]
> [  210.969899] Caller [10101f1c:btrfs_csum_final+0x3c/0x60 [btrfs]]
> [  228.724982] Kernel unaligned access at TPC[10101f18] btrfs_csum_final+0x38/0x60 [btrfs]
> [  228.820220] Caller [10101f1c:btrfs_csum_final+0x3c/0x60 [btrfs]]
> [  228.892286] Kernel unaligned access at TPC[10101f18] btrfs_csum_final+0x38/0x60 [btrfs]
> [  228.987851] Caller [10101f1c:btrfs_csum_final+0x3c/0x60 [btrfs]]
> 
> I'm open for more patches :-)

Confusing for me too.  I'll try to think about this some more.