Re: ata1.00: failed to IDENTIFY (I/O error, err_mask=0x4)

[Chuck Ebbert]

On 02/23/2008 12:48 PM, Vegard Nossum wrote:
> 
> 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.
> 

"nosmp" disables the IO-APIC which will change interrupt handling.

If you just want to enable a single CPU, use "maxcpus=1".
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