Re: 2.6.25 pci=noacpi

Len Brown
2008-05-01T16:00:23Z

On Thursday 01 May 2008, Richard wrote:
> Len Brown wrote:
> > On Tuesday 29 April 2008, Richard wrote:
> >
> >> Hi there,
> >>
> >> Now I am at a loss.. I cant get any logs from netconsole. With ACPI
> >> enabled it drops dead just after the kernel hands control to Init. When
> >> I reboot with acpi disabled there is no trace of the previous boot in
> >> /var/log/message or kernel logs.
> >>
> >> The network card I have is a Tigon3 and its not initialised before the
> >> system dies... or so it looks (altho I cant seem to get any netconsole
> >> working - I suspect pebkac)
> >>
> >> I have tried to find an option where the kernel boot is logged
> >> explicitly to disk, but I cant seem to find the option. There is so much
> >> chaff I cant seem to get my brain to find the REAL options list thats up
> >> to date.
> >>
> >> Any pointers are appreciated
> >>
> >
> > go fishing with this bait:
> >
> > idle=poll
> > acpi=noirq
> >
> > -Len
> >
> >
> Thanks :-) With help from Thomas (and his team) , noapictimer seems to
> have fixed the symptom.. now its to hunt for the cure :-)

if the problem is the apic timer stopping during C-states,
then you should find that idle=poll will also work around the problem.
If idle=poll does not work around it but noapictimer does, then
the problem is the apic timer when the system is non-idle.

-Len