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Date: Mon, 4 Aug 2008 15:13:33 +0100 From: Alan Cox <alan@...rguk.ukuu.org.uk> To: Gabor Gombas <gombasg@...aki.hu> Cc: Tejun Heo <htejun@...il.com>, Elias Oltmanns <eo@...ensachen.de>, Jeff Garzik <jeff@...zik.org>, Bartlomiej Zolnierkiewicz <bzolnier@...il.com>, James Bottomley <James.Bottomley@...senpartnership.com>, Pavel Machek <pavel@....cz>, linux-ide@...r.kernel.org, linux-kernel@...r.kernel.org Subject: Re: [PATCH 3/5] libata: Implement disk shock protection support On Mon, 4 Aug 2008 16:28:32 +0200 Gabor Gombas <gombasg@...aki.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 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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