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SubjectRe: ata1.00: failed to IDENTIFY (I/O error, err_mask=0x4)
On Sat, Feb 23, 2008 at 7:31 PM, Alan Cox <alan@lxorguk.ukuu.org.uk> wrote:
> O> I don't see the connection between (no-)smp and ata. Something with
>
> > interrupt routing/IPI, missing irq ack? Booting another !SMP kernel
> > works fine. The problem also exists in 2.6.24-rc2.
>
> Almost certainly interrupt routing try smp but with noapic and see if it
> fails as well ?

Just a quick follow-up. On regular bootups, I get this message:

ata1: SATA max UDMA/133 cmd 0xf8850100 ctl 0x00000000 bmdma 0x00000000 irq 218
ata2: SATA max UDMA/133 cmd 0xf8850180 ctl 0x00000000 bmdma 0x00000000 irq 218

while the nosmp one gets this (the screenshot cut the irq part):

ata1: SATA max UDMA/133 abar m2048@0x9b304000 port 0x9b304100 irq 223
ata2: SATA max UDMA/133 abar m2048@0x9b304000 port 0x9b304100 irq 223

Don't know if the irq # change is significant or not. Will try noapic now.


Vegard


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