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SubjectRe: 2.6.24.X: SATA/AHCI related boot delay. - not with 2.6.24.3
On Thu, 20 Mar 2008 20:04:13 -0700 (PDT)
osb972ww-linuxczmil@yahoo.com wrote:

>
> HI Tejun,
>
> setting irqpoll fixed both problems, and there are no "nasty grams" in dmesg now. The original reason I was trying to use the hdparm -u on /dev/sda was because it was hanging for a few seconds when doing writes to the CFdisk, and in the past that was the kind of thing that hdparm -u would generally fix. Now with the irqpoll kernel option, the /dev/sdb SATA drive was found, and I can mount it and write to it. The CFcard /dev/sda is also responding to writes better than before.
>
> Thanks for the suggestion to use irqpoll. What is the problem within the driver(s) that is requiring irqpoll. ?

irqpoll works around BIOS bugs not driver bugs (well generally speaking
anyway).

Alan


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