Andrew Morton <[email protected]> writes:
> On Wed, 18 Oct 2006 16:01:05 -0700
> Badari Pulavarty <[email protected]> wrote:
>
> > > Is the NMI watchdog ticking over?
> >
> > I think so.
> >
> > # dmesg | grep NMI
> > ACPI: LAPIC_NMI (acpi_id[0x00] high edge lint[0x1])
> > ACPI: LAPIC_NMI (acpi_id[0x01] high edge lint[0x1])
> > ACPI: LAPIC_NMI (acpi_id[0x02] high edge lint[0x1])
> > ACPI: LAPIC_NMI (acpi_id[0x03] high edge lint[0x1])
> > testing NMI watchdog ... OK.
>
>
> 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.
That's consistent with a idle machine. The perfctr used by the nmi
watchdog only increases when the CPU isn't halted and when it's idle
it's not doing very much. When something actually loops it should
increase much faster though.
-Andi
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [email protected]
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
[Index of Archives]
[Kernel Newbies]
[Netfilter]
[Bugtraq]
[Photo]
[Stuff]
[Gimp]
[Yosemite News]
[MIPS Linux]
[ARM Linux]
[Linux Security]
[Linux RAID]
[Video 4 Linux]
[Linux for the blind]
[Linux Resources]
