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SubjectRe: [BISECTED] pata_jmicron: no drives found on post 2.6.25 kernels
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On Tue, 2008-05-20 at 01:37 +0300, Plamen Petrov wrote:
> Hello, folks!
>
> After 2.6.26 merge window opened, the optical drives in my
> computer, hanging off a JMicron controler were not detected
> by linux any more.
>
> Luca Tettamanti reported similar troubles:
> http://marc.info/?l=linux-kernel&m=120958791323911&w=2
>
> Its been 20 days, so I decided to bisect.
> git bisect revealed that commit
> 7d715a6c1ae5785d00fb9a876b5abdfc43abc44b
> is the one causing pata_jmicron to fail to detect drives,
> connected to the JMicron controler on my motherboard.
> At least in my case, anyway...
> Changing kernel config to CONFIG_PCIEASPM=n makes the drives
> attached to the JMicron SATA/PATA controller usable again.
When you enable this option, did you change any ASPM policy? By default,
we are using the BIOS setting, so it shouldn't change any thing.

Also can you please send me the 'lspci -vvvxxxx' output with/without the
ASPM enabled?
Thanks,
Shaohua



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