Re: AMD64 X2 lost ticks on PM timer

Jeff Garzik
2006-03-03T23:46:46Z

Bill Rugolsky Jr. wrote:
> 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:

I'm not. Thus my comments refuting Lee's silly speculation.

> 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.

Unlikely. More likely is a disabled interrupt period is longer than a
tick period, or similar.

Jeff