linux-kernel - Re: [PATCH] aacraid: fix shutdown handler to also disable interrupts.

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Message-ID: <20070601110845.GC20714@in.ibm.com>
Date:	Fri, 1 Jun 2007 16:38:45 +0530
From:	Vivek Goyal <vgoyal@...ibm.com>
To:	"Salyzyn, Mark" <mark_salyzyn@...ptec.com>
Cc:	linux-scsi@...r.kernel.org,
	Andrew Morton <akpm@...ux-foundation.org>,
	Yinghai Lu <yhlu.kernel@...il.com>,
	"Eric W. Biederman" <ebiederm@...ssion.com>,
	Michal Piotrowski <michal.k.k.piotrowski@...il.com>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] aacraid: fix shutdown handler to also disable interrupts.

On Wed, May 30, 2007 at 11:59:13AM -0400, Salyzyn, Mark wrote:
> Moves quiesce, thread and interrupt shutdown into aacraid drivers'
> .shutdown handler. This fix to the aac_shutdown handler will remove the
> superfluous reset of the adapter during a (clean) kexec.
> 
> This fix may mitigate the active investigation 'kexec and aacraid
> broken' but it is unlikely to affect the root cause (issue likely
> present in both kexec and kdump). This patch reduces the chance the
> problem will occur with a kexec. The fix for root cause is currently
> expected to be the minimum value check to the aacraid.startup_timeout
> driver variable after an adapter reset within aacraid_commit_reset.patch
> submitted on 05/22/2007 and awaiting testing by Yinghai to confirm.
> 
> This attached patch is against current scsi-misc-2.6
> 
> ObligatoryDisclaimer: Please accept my condolences regarding Outlook's
> handling of patch attachments.
> 
> Signed-off-by: Mark Salyzyn <aacraid@...ptec.com>
> 

Thanks Mark. This does fix the issue of unnecessary reset of aacraid
adapter over kexec on my machine.

Thanks
Vivek
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