Re: 2.4.24 SMP lockups

From: Willy Tarreau
Date: Sun Jan 11 2004 - 04:31:28 EST


On Sun, Jan 11, 2004 at 12:55:06AM -0800, Simon Kirby wrote:
> On Sat, Jan 10, 2004 at 02:40:49PM -0800, Andrew Morton wrote:
>
> > Presumably it's spinning on the lock with interrupts enabled. Make that
> > the `NMI' counters in /proc/interrupts are incrementing for all CPUs.
>
> Actually, on one of the boxes it doesn't seem to be working at all:
>
> activating NMI Watchdog ... done.
> testing NMI watchdog ... CPU#0: NMI appears to be stuck!

Could you try with "nmi_watchdog=2" ? This is the only one which works on
my ASUS A7M266-D (MPX + dual XP 1800+).

Willy

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