Re: libata/sata_nv latency on NVIDIA CK804 [was Re: AMD64 X2 lost ticks on PM timer]

Gabor Gombas
2006-03-16T14:42:38Z

On Wed, Mar 15, 2006 at 11:20:24PM -0500, Lee Revell wrote:

> Lots of people have these boards and it seems like if the problem was
> widespread, I would have seen it on the Linux audio lists, as many of
> those users run Ingo's instrumented kernel and they all know to report
> latency traces when they get them.

I did not experience any sata_nv problems with 2 disks/RAID1 (at least I
never noticed). I immediately got the "warning: many lost ticks. Your
time source seems to be instable or some driver is hogging interupts"
message when I started using 4 disks/RAID5. It's possible that most
people do not have enough disks connected to the nForce4 to trigger the
bug.

Gabor

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MTA SZTAKI Computer and Automation Research Institute
Hungarian Academy of Sciences
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