Re: AMD64 X2 lost ticks on PM timer

From: Gabor Gombas
Date: Thu Mar 02 2006 - 10:45:26 EST


On Wed, Mar 01, 2006 at 10:43:13AM -0500, Bill Rugolsky Jr. wrote:

> My guess is the sata_nv driver, as it happens during heavy local file read.
> The machines all have 2-4 SATA WD Raptors connected to the mobo.

I have 4 SATA disks connected to an nForce4, being part of an md/raid5
array. If I start bonnie on the raid5 array, I get:

warning: many lost ticks.
Your time source seems to be instable or some driver is hogging interupts
rip __do_softirq+0x3b/0xa1

So sata_nv definitely looks fishy.

Gabor

--
---------------------------------------------------------
MTA SZTAKI Computer and Automation Research Institute
Hungarian Academy of Sciences
---------------------------------------------------------
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/