Re: Bug in libata

[Jeff Garzik]

Klaus Ethgen wrote:
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> Dear Jeff, dear Kernel developers,
>
> after several time I decided to update the kernel on my IBM ThinkPad
> T43p to the newest one (2.6.25.4). After doing so my system was unable
> to boot. I always got the following error:
>    ata_piix 000:00:1f.2: failed to request/iomap BARs for port 0 (errno=-16)
>
> After doing some regressions tests I got the wrong commit. Git commit
> 8cdfb29c0cd8018f92214c11c631d8926f4cb032 which is from Jeff Garzik
> introduce the bug that makes the system unbootable at all.
>
> As I am not subscribed to the kernel-devel list please hold me in Cc
> about this bug.
>
> Regards
>    Klaus Ethgen
>
> Ps. Thanks to Linus for git-bisect. It costs me one day but without it I
> think I had have much longer to find the problematic patch.

This is a configuration problem.  You need to pick one driver or the 
other, not both, as that commit's description indicates.

	Jeff



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