linux-kernel - Strange mptbase / mptscsih kernel messages

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Message-ID: <e2e108260805072336p6b29f11o287ac3c5cab9295a@mail.gmail.com>
Date:	Thu, 8 May 2008 08:36:03 +0200
From:	"Bart Van Assche" <bart.vanassche@...il.com>
To:	LKML <linux-kernel@...r.kernel.org>
Subject: Strange mptbase / mptscsih kernel messages

Hello,

I have made a setup with four servers, where each server is configured
as follows:
* Four Intel Xeon E5130 CPU cores.
* 8 GB RAM.
* SCSI storage controller: LSI Logic / Symbios Logic SAS1068E
PCI-Express Fusion-MPT SAS (rev 04),
* 16 disks in a RAID6 setup (md).
* Linux 2.6.24.6 kernel.

There is a lot of data being written to the RAID6 array: about 50 MB/s
on each server. There are two kinds of messages that appear:

(1)
[74887.117650] mptbase: ioc0: LogInfo(0x31120403): Originator={PL},
Code={Abort}, SubCode(0x0403)

(2)
[74917.081454] mptscsih: ioc0: attempting task abort! (sc=ffff8100a18a7180)
[74917.081461] sd 0:0:15:0: [sdp] CDB: Write(10): 2a 00 1c fe 61 93 00 00 20 00
[74918.409801] mptbase: ioc0: LogInfo(0x31140000): Originator={PL},
Code={IO Executed}, SubCode(0x0000)
[74918.639801] mptscsih: ioc0: task abort: SUCCESS (sc=ffff8100a18a7180)

These messages appear a few times per day. Anyone any idea what the
meaning is of these messages and what the cause of these messages is ?

Bart.
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