Re: [PATCH 14/14] libata: use PIO for misc ATAPI commands

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> This is about time we make decision on this.  If we're gonna go

I thought everyone but you had made a decision ;)

> DMA-for-everything way, we should lift 16 byte default masking for -mm
> and -rc's as that only makes debugging difficult and try to blacklist
> offending devices and controllers individually.

Would be a useful experiment for -mm not really I think for -rc.

> My primary concern is about not achieving enough test coverage and
> isolated cases where it's difficult to tell whether it's the device or
> the controller.  e.g. Loading recent distro on an ancient and/or strange
> machine, scratching head while cursing and giving up.  

Watching the Fedora bugzilla I don't see things that match up to your
descriptions and fixes. Indeed I've now got verification that the weird
ALi ATAPI problem a few people have isn't even fixed by your extreme
changes.

Alan
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