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Re: kernel 2.6.27.7 problem

To: DS <xfs@xxxxxxxxxxxx>
Subject: Re: kernel 2.6.27.7 problem
From: Eric Sandeen <sandeen@xxxxxxxxxxx>
Date: Sat, 06 Dec 2008 07:42:33 -0600
Cc: xfs@xxxxxxxxxxx
In-reply-to: <20081206091022.GA24158@xxxxxxxxxxxx>
References: <20081206023608.GA22135@xxxxxxxxxxxx> <4939F104.9060201@xxxxxxxxxxx> <20081206091022.GA24158@xxxxxxxxxxxx>
User-agent: Thunderbird 2.0.0.18 (Macintosh/20081105)
DS wrote:
> No other messages before. No iSCSI/network messages...nothing.
> Only this few lines and FS is down. After remount it works ....while and
> hangs again.
> Few hours it runs back on 2.6.24.3 and everything is OK.
> 
> It's production system, but I test it again in late night.
> What can I do to identify problem?

Complain to the iscsi people perhaps...?

__end_that_request_first() in block/block-core.c() is what is issuing
your first error,

>  end_request: I/O error, dev sde, sector 351572544

and the rest is xfs reacting to that.

Maybe the first thing I'd check is whether that sector nr. is sane for
your device (I'd assume it is, but maybe worth checking).

If that's all you've got I'm not sure offhand what else to debug....

-Eric

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