linux-kernel - Re: Strange mptbase / mptscsih kernel messages

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [day] [month] [year] [list]

Message-ID: <e2e108260806050658r3fb8b3b2gaf486c2647271e69@mail.gmail.com>
Date:	Thu, 5 Jun 2008 15:58:00 +0200
From:	"Bart Van Assche" <bart.vanassche@...il.com>
To:	"Prakash, Sathya" <Sathya.Prakash@....com>
Cc:	"Andrew Morton" <akpm@...ux-foundation.org>,
	LKML <linux-kernel@...r.kernel.org>,
	"Moore, Eric" <Eric.Moore@....com>, linux-scsi@...r.kernel.org
Subject: Re: Strange mptbase / mptscsih kernel messages

On Thu, May 8, 2008 at 10:33 AM, Prakash, Sathya <Sathya.Prakash@....com> wrote:
> The meaning of 1 message is some fram transmit error encountered by
> hardware and the I/O request is aborted by firmware because of the
> error,
> The second message indicates, some I/O got timed out and the SML tries
> to abort the request and the firmware completes the I/O before aborting
> that. Hence returns IO executed message and the driver completes the
> abort as success.
> Suspecting some bad hardware in the topology(cables?)

Hello Sathya,

It took some time before I could have a closer look at the system on
which I observed the strange kernel messages. Apparently the RAID
controller (LSISAS3081E ?) is not connected directly to the 16 disks
but via a SAS expander (Super Micro SC836 SAS Backplane with two LSI
SASX28 Expander Chips --
http://www.supermicro.com/products/chassis/3U/836/SC836E2-R800.cfm).
It will be a challenge to find out which component triggered the
kernel messages and how to make the storage subsystem work perfectly.
Any hint is welcome.

Bart.
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/