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Message-Id: <20090116.110931.166270342.davem@davemloft.net>
Date: Fri, 16 Jan 2009 11:09:31 -0800 (PST)
From: David Miller <davem@...emloft.net>
To: James.Bottomley@...senPartnership.com
Cc: akpm@...ux-foundation.org, torvalds@...ux-foundation.org,
linux-scsi@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [GIT PATCH] firs round of SCSI bug fixes for 2.6.29-rc1
From: James Bottomley <James.Bottomley@...senPartnership.com>
Date: Fri, 16 Jan 2009 13:48:53 -0500
> On Fri, 2009-01-16 at 09:09 -0800, Andrew Morton wrote:
> > Doing a panic() after we've already detected an error is plain nasty.
> > Is there no way in which we can allow the kernel to continue?
>
> There's a long thread discussing this very point on linux-scsi. The
> short version is "no, it's only used for debugging firmware and if
> you've corrupted your firmware to this point you need the machine
> halting".
Long thread or not, taking out one's entire system because one
device hits a fail state is always wrong.
If I have other block devices which are working, all I want
is for this specific controller and it's block devices to
fail.
This way I can get the failure log message and actually do something
with that data without rebooting.
Or I guess digital cameras and serial/net consoles are the only
sanctioned way to record kernel failure log messages of this kind?
Give me a break. :)
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