From: Jens Axboe <axboe@kernel.dk>
To: "Stephen M. Cameron" <scameron@beardog.cce.hp.com>
Cc: akpm@linux-foundation.org, mikem@beardog.cce.hp.com,
linux-kernel@vger.kernel.org, brace@beardog.cce.hp.com
Subject: Re: [PATCH] cciss: disable doorbell reset on reset_devices
Date: Mon, 23 Aug 2010 11:02:33 +0200 [thread overview]
Message-ID: <4C723929.2070908@kernel.dk> (raw)
In-Reply-To: <20100818144516.21791.86572.stgit@beardog.cce.hp.com>
On 2010-08-18 16:45, Stephen M. Cameron wrote:
> From: Stephen M. Cameron <scameron@beardog.cce.hp.com>
>
> The doorbell reset initially appears to work correctly,
> the controller resets, comes up, some i/o can even be
> done, but on at least some Smart Arrays in some servers,
> it eventually causes a subsequent controller lockup due
> to some kind of PCIe error, and kdump can end up leaving
> the root filesystem in an unbootable state. For this
> reason, until the problem is fixed, or at least isolated
> to certain hardware enough to be avoided, the doorbell
> reset should not be used at all.
Thanks Stephen, applied.
--
Jens Axboe
prev parent reply other threads:[~2010-08-23 9:02 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-08-18 14:45 [PATCH] cciss: disable doorbell reset on reset_devices Stephen M. Cameron
2010-08-23 9:02 ` Jens Axboe [this message]
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