Re: PROBLEM: Can't boot a (HZ = 1000) kernel using an AMD Phenom-II processor

Ingo Molnar
2009-02-20T12:34:33Z

* Andreas Herrmann <andreas.herrmann3@amd.com> wrote:

> On Thu, Feb 19, 2009 at 10:54:19AM -0500, Mark Hounschell wrote:
> > Borislav Petkov wrote:
> > > On Thu, Feb 19, 2009 at 10:16:40AM -0500, Mark Hounschell wrote:
> > >> Andreas Herrmann wrote:
> > >>> Hi Mark,
> > >>>
> > >>> Can you please provide us output of lspci -vvxxx.
> > >>> (Please run this as root.)
> > >>>
> >
> > Attached...
> >
> >
> > >>> Furthermore you can try booting your 1000HZ kernel
> > >>> with following kernel command lines:
> > >>>
>
> Thanks for trying this out.
> But nothing suspicious found. I.e. timer/hpet interrupt is enabled
> and its routing seems to be ok.
>
> Here's one more check that's worth trying: In one of your logs I've
> seen that HPET id reports 3 timers but later on 4 timers were detected
> for HPET.
>
> To check what's going on I'd like to see the HPET
> configuration in the course of booting your system. Please
> apply attached patch and boot with hpet=debug -- both with
> 250HZ and with 1000HZ -- and provide dmesg output.

Mind sending this patch as a hpet=verbose feature patch which we
could queue up for upstream merging? We have hpet problems
frequently, so some built-in debug/verbosity trigger would be
nice.

Ingo