Messages in this thread |  | | | Date | Fri, 3 Mar 2006 18:43:30 -0500 | | From | "Bill Rugolsky Jr." <> | | Subject | Re: AMD64 X2 lost ticks on PM timer |
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On Fri, Mar 03, 2006 at 05:09:57PM -0500, Jeff Garzik wrote: > Or sata_nv/libata is to blame.
In case you are coming late to the thread:
The lost ticks are closely correlated with sata_nv disk activity on multiple disks, and the problem is easily reproducable with "find /usr | cpio -o >/dev/null" on an MD RAID1 -- but not on a single disk. Andi suggested:
Yes, I bet something forgets to turn on interrupts again and it's picked up by (and blamed on) the next guy who does an unconditional sti, which happens to be __do_sofitrq or idle.
That sounds right to me.
I built 2.6.16-rc5-git6 yesterday, and it still suffers from the same issue.
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