Re: [PATCH #upstream-fixes] libata: implement and use HORKAGE_NOSETXFER

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cc'ing Lars.  New bug reporter on this problem.

Alan Cox wrote:
> On Mon, 25 May 2009 12:10:19 +0900
> Tejun Heo <tj@xxxxxxxxxx> wrote:
> 
>> Reviving an old thread and quoting whole body for new reporter.
> 
> I've not changed my view btw - which is that the quirk should match what
> old IDE does here - issue the command and if it fails carry on regardless.

That isn't possible because the host machine state is unknown after a
timeout.  The problem is not confined to TF based controllers and even
on TF based controllers, it's far too dangerous to continue as nothing
happened.  That can easily lead to complete system lock up on quite a
few controllers due to fragile TF emulation layer.

The drive is full SATA.  SETXFER doesn't mean anything to it.  Let's
just skip it.

Thanks.

-- 
tejun
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