Re: 2.6.19-rc2-mm1

Andrew Morton
2006-10-19T00:21:44Z

On Wed, 18 Oct 2006 17:07:59 -0700
Badari Pulavarty <pbadari@us.ibm.com> wrote:

> > What does it say in /proc/interrupts?
> >
> > The x86_64 nmi watchdog handling looks rather complex.
> >
> > <checks a couple of x86-64 machines>
> >
> > The /proc/interrutps NMI count seems to be going up by about
> > one-per-minute. How odd. Maybe you just need to wait longer.
>
>
> While the soft lock up messages are getting printed..
> (waited for 5 min for these messages)..
>
> # while :; do grep NMI /proc/interrupts; sleep 30; done
> NMI: 265 73 41 47
> NMI: 265 81 62 47
> NMI: 265 81 71 69
> NMI: 265 81 93 77
> NMI: 265 81 101 99
> NMI: 288 82 101 107
> NMI: 296 82 131 129
> NMI: 296 82 153 137
> NMI: 296 82 161 160
> NMI: 296 105 161 167
> NMI: 296 112 184 167
>
> Looking at the messages, I don't think trace all cpus
> is working ..

nfi what's going on there. On my Conroe machine each CPU's NMI count goes
up by what apepars to be one-per-second when the CPUs are flat out busy,
but the count increases by random small amounts (like yours) when the
machine is idle.

Did you try setting nmi_watchdog=?