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SubjectRe: Very bad interactivity with 2.6.0 and SCSI disks (aic7xxx)
Stefan Foerster <stefan@stefan-foerster.de> wrote:
>
> But as soon as I do a
>
> while true; do dd if=/dev/zero of=test bs=1024 count=1048576 ; rm test
> ; done
>
> on my SCSI disk, the system becomes completely unusuable after a few
> seconds.

I've been running an aic7xx-based desktop on 2.5/2.6 for ages, no
such problems.

A kernel profile would be needed to diagnose this. You could use
readprofile, but as it may be an interrupt problem, the NMI-based oprofile
output would be better.


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