Re: NMI watchdog detected lockup

Phil Oester
2004-10-18T18:42:52Z

On Mon, Oct 18, 2004 at 08:16:54PM +0200, Andi Kleen wrote:
> On Mon, 18 Oct 2004 10:58:08 -0700
> "Randy.Dunlap" <rddunlap@osdl.org> wrote:
>
> > > Something on your system creates bogus NMI interrupts. What chipset
> > > are you using exactly?
> > >
> > > Sometimes chipsets can be programmed to raise NMIs when an PCI bus
> > > error occurs.
> > >
> > > 21 is the normal state (PIT timer running, but no errors logged)
> > >
> > > If you have an AMD 8131 it could be in theory erratum 54, but then
> > > normally one of the error bits in reason should be set.
> >
> > Yes, it's an AMD-8111 / 8131 / 8151 / K8-northbridge machine.
>
> It's probably one of your IO cards. I would remove them one by one
> or possibly switch them to different slots (PCI vs PCI-X)

Not sure if it's related, but I've noticed this with numerous 440gx
boxes on 2.6.8.1. I get reasons 2d and 3d. If I reboot with
nmi_watchdog=1 on these boxes, the errors go away. This was not
a problem on 2.6.3 interestingly enough...

Phil