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.
Gabor
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MTA SZTAKI Computer and Automation Research Institute
Hungarian Academy of Sciences
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