MATSUBAYASHI 'Shaolin' Kohji wrote:
> Unfortunately no...
> With this patch, booting will stop during the execution of
> the following lines (in ata_piix.c: piix_init_sidpr()):
> 
>         if (pci_resource_start(pdev, PIIX_SIDPR_BAR) == 0 ||
>             pci_resource_len(pdev, PIIX_SIDPR_BAR) != PIIX_SIDPR_LEN)
>                 return;
> 
> which might suggest this is not ata_piix related problem I'm afraid...
> 
> Again, please note if I keep the AC adapter plugged to MacBook,
> there is no such problem happening. It happens only when running with battery.

Hmmm.. That really doesn't make much sense.  Can you please try the
attached one just in case?

Thanks.

-- 
tejun