linux-kernel - Re: sata_mv port lockup on hotplug (kernel 2.6.38.2)

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Message-ID: <4D9CD275.9000002@teksavvy.com>
Date:	Wed, 06 Apr 2011 16:52:05 -0400
From:	Mark Lord <kernel@...savvy.com>
To:	Bruce Stenning <b.stenning@...igovision.com>
CC:	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: sata_mv port lockup on hotplug (kernel 2.6.38.2)

On 11-04-06 10:57 AM, Bruce Stenning wrote:
> Please accept my most humble apologies for the lack of line breaks in
> my previous email.  Here it is again, this time in a more readable
> format:
> 
> Hello,
> 
> We have a bespoke platform utilising a Marvell MV88SX6041 SATA controller
> on which we have been running Linux 2.6.26 and using the sata_mv driver.
> 
> We have noticed problems with SATA ports occasionally locking up (on
> hotplug events) and remaining unresponsive.  The normal kernel logging
> that occurs on hotplug events is no longer emitted for the locked ports
> (but will be emitted for the other sata ports that have not exhibited
> the problem.)  The disks attached to the locked ports are completely
> unresponsive.  The condition can be cleared by removing the sata_mv
> kernel module from memory and reloading it, after which the kernel
> logging becomes active (and the disks are usable) for all ports.
> 
> The following changeset was seen as a strong candidate for addressing
> this problem:
> 
> http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff;h=933cb8e5fcdebd4b666165e3f039f814d62b0e52


That changeset is already in upstream kernels (kernel.org).
Does the latest kernel (2.6.38) w/ sata_mv work ?
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