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SubjectRe: [PATCH 3/5] libata: Implement disk shock protection support
On Mon, 4 Aug 2008 16:28:32 +0200
Gabor Gombas <> 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.


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