Re: [patch, -rc5-mm1] lock validator: disable NMI watchdog ifCONFIG_LOCKDEP, i386

From: Mike Galbraith
Date: Tue May 30 2006 - 08:41:13 EST


On Tue, 2006-05-30 at 14:29 +0200, Ingo Molnar wrote:
> * Mike Galbraith <efault@xxxxxx> wrote:
>
> > > > BUG: warning at kernel/lockdep.c:2398/check_flags()
> > >
> > > this one could be related to NMI. We are already disabling NMI on
> > > x86_64, but i thought i had it fixed up for i386 - apparently not.
> >
> > Booted with nmi_watchdog=0, no warning and no deadlock.
>
> ok, great. The patch below turns off NMI on i386 automatically.

All is well. Back to nmi_watchdog=1, no warning, no lock.

-Mike

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