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SubjectRe: 2.6.0-test2 pegasus USB ethernet system lockup.
Date
> 
> >
> > On Sun, Aug 03, 2003 at 01:22:07AM +0100, root@mauve.demon.co.uk wrote:
> > > Occasionally I also get
> > > Aug 1 01:47:37 mauve kernel: Debug: sleeping function called from invalid context at drivers/usb/core/hcd.c:1350
> >
> > This is fixed in Linus's tree.
> >
> > > I am unable to say if lights are flashing on the keyboard, as there are
> > > no lights on the keyboard.
> >
> > Can you use a serial debug console and/or the nmi watchdog to see if you
> > can capture where things went wrong?
>
> Currently trying to get the NMI watchdog working.

I have failed to get it working.
I tried both of the options under CPU features to enable the APIC, with
both settings of the kernel flag.
I also tried a SMP kernel, with no flag.
None of these showed any NMI interrupts in /proc/interrupts or any different
behaviour on unplugging with the network active.
Is a serial kernel likely to do anything in this case?
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