linux-kernel - Re: [PATCH] [scsi]: Add offline state checking while dispatch a scsi cmd

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Message-Id: <20070311015300.271c2323.akpm@linux-foundation.org>
Date:	Sun, 11 Mar 2007 01:53:00 -0800
From:	Andrew Morton <akpm@...ux-foundation.org>
To:	Joe Jin <joe.jin@...cle.com>
Cc:	James.Bottomley@...elEye.com, joe.jin@...cle.com,
	akpm@...ux-foundation.org, dgilbert@...erlog.com,
	linux-scsi@...r.kernel.org, linux-kernel@...r.kernel.org,
	haobo.zhou@...cle.com
Subject: Re: [PATCH] [scsi]: Add offline state checking while dispatch a
 scsi cmd

> On Fri, 9 Mar 2007 09:40:40 +0800 Joe Jin <joe.jin@...cle.com> wrote:
> > What's the error you're trying to fix?  scsi_dispatch_cmd() is only
> > called from scsi_request_fn() which already has an equivalent of this
> > check in it just prior to calling dispatch.
> 
> Yeah, I have saw the cheking at scsi_request_fn(), recently we got a crash
> info as following at rhel4 2.6.9-42.0.2.ELsmp,

The 2.6.9 base is very old in mainline terms.  Are you sure the bug hasn't
been fixed in mainline by other means?

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