[LAU] SCSI controller (aic7xxx) and xruns on 2.6 rt9 kernel

[Karl Hammar]

> Hi,
> 
> I have many xruns when I read/write files on my SCSI
> disks. The suspected module is aic7xxx. I read a thread
...
> RT kernel and RTirq. I tweaked my PCI latencies to 0
> for the Adaptec PCI bus using setpci.

I don't know what 0 would stand for, but a lower latencies means
more interrupts. Maybe theese can help you:

http://ccrma.stanford.edu/mirrors/lalists/lau/2007/04/0340.html
http://ccrma.stanford.edu/mirrors/lalists/lau/2007/04/0319.html

...

Regards,
/Karl