Messages in this thread | ![/](/images/icornerl.gif) | | Date | Mon, 28 Jul 2003 19:53:42 +0200 | From | Andi Kleen <> | Subject | Re: [PATCH] NMI watchdog documentation |
| |
On Wed, 23 Jul 2003 20:43:25 +0300 Ville Herva <vherva@niksula.hut.fi> wrote:
> Documentation/nmi-watchdoc.txt doesn't actually tell what options need to be > enabled in kernel config in order to use NMI watchdog. I for one found it > confusing. > > I vaguely recall someone posted a similar patch some time ago, but it still > doesn't seem to be present in 2.4 or 2.6-test. > > Andi: what about x86-64 - does it have something similar that should be > mentioned?
x86-64 is the same, except APIC is always compiled in and the nmi watchdog is always enabled with perfctr mode. mode=2 seems to also not work correctly currently.
However one caveat (even for i386): when you use perfctr mode 1 you lose the first performance register which you may need for other things.
-Andi
- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
| ![\](/images/icornerr.gif) |