From: Alan Cox <alan@lxorguk.ukuu.org.uk>
To: Gabor Gombas <gombasg@sztaki.hu>
Cc: Tejun Heo <htejun@gmail.com>, Elias Oltmanns <eo@nebensachen.de>,
Jeff Garzik <jeff@garzik.org>,
Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>,
James Bottomley <James.Bottomley@hansenpartnership.com>,
Pavel Machek <pavel@ucw.cz>,
linux-ide@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH 3/5] libata: Implement disk shock protection support
Date: Mon, 4 Aug 2008 15:13:33 +0100 [thread overview]
Message-ID: <20080804151333.606eaaaf@lxorguk.ukuu.org.uk> (raw)
In-Reply-To: <20080804142831.GW8749@boogie.lpds.sztaki.hu>
On Mon, 4 Aug 2008 16:28:32 +0200
Gabor Gombas <gombasg@sztaki.hu> wrote:
> On Fri, Aug 01, 2008 at 04:19:26PM +0900, Tejun Heo wrote:
>
> > However, SATA or not, there simply isn't a way to abort commands in ATA.
> > Issuing random command while other commands are in progress simply is
> > state machine violation and there will be many interesting results
> > including complete system lockup (ATA controller dying while holding the
> > PCI bus).
>
> A system lockup may be an acceptable compromise if that saves the
> hardware. Maybe the kernel should explicitely panic unless the
> controller/drive is known to be able to recover.
We've already been told that the accelerometer will now and then randomly
trigger due to other shock patterns like a bump. I don't want my laptop
to panic randomly on train journeys thank you.
Alan
next prev parent reply other threads:[~2008-08-04 14:32 UTC|newest]
Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-07-26 6:20 [RFC] Disk shock protection in GNU/Linux Elias Oltmanns
2008-07-26 6:23 ` [PATCH 1/5] Make sure that ata_force_tbl is freed in case of an error Elias Oltmanns
2008-07-26 6:24 ` [PATCH 2/5] Introduce ata_id_has_unload() Elias Oltmanns
2008-07-26 16:01 ` Alan Cox
2008-07-26 6:25 ` [PATCH 3/5] libata: Implement disk shock protection support Elias Oltmanns
2008-08-01 7:19 ` Tejun Heo
2008-08-01 22:34 ` Alan Cox
2008-08-03 3:19 ` Tejun Heo
2008-08-03 13:05 ` Alan Cox
2008-08-03 13:58 ` Tejun Heo
2008-08-04 13:43 ` Elias Oltmanns
2008-08-04 13:26 ` Elias Oltmanns
2008-08-04 14:12 ` Tejun Heo
2008-08-04 16:54 ` Elias Oltmanns
2008-08-04 23:26 ` Tejun Heo
2008-08-04 14:28 ` Gabor Gombas
2008-08-04 14:13 ` Alan Cox [this message]
2008-08-04 14:35 ` Tejun Heo
2008-07-26 6:27 ` [PATCH 4/5] ide: " Elias Oltmanns
2008-08-04 6:39 ` Pavel Machek
2008-08-04 14:15 ` Elias Oltmanns
2008-07-26 6:29 ` [PATCH 5/5] Add documentation for hard disk shock protection interface Elias Oltmanns
2008-07-26 9:18 ` Sergei Shtylyov
[not found] <fa.nx0yFPJm+aNXPHgykUrOzZXvvIs@ifi.uio.no>
[not found] ` <fa.NfEr7Ik6e8oextyWICW/jR5emeE@ifi.uio.no>
[not found] ` <fa.zGvATZImeUo0tHJe4hzlk5+mTiM@ifi.uio.no>
[not found] ` <fa.SRVleMItV5QEF7/tgCjSHz0ScJA@ifi.uio.no>
[not found] ` <fa.YKbhgq8XUxH/Qg1ArE+73YsDlpE@ifi.uio.no>
2008-08-05 4:05 ` [PATCH 3/5] libata: Implement disk shock protection support Robert Hancock
2008-08-05 13:14 ` Theodore Tso
2008-08-05 14:29 ` Henrique de Moraes Holschuh
2008-08-05 15:14 ` Eric Piel
2008-08-05 20:00 ` Pavel Machek
2008-08-05 19:59 ` Pavel Machek
2008-08-05 22:57 ` Elias Oltmanns
2008-08-05 4:16 ` Robert Hancock
2008-08-05 7:49 ` Tejun Heo
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