[PATCH 2/3] [RFC] Print a watchdog message at KERN_WARNING level
Don Zickus
dzickus at redhat.com
Fri Feb 4 22:16:24 UTC 2011
On Fri, Feb 04, 2011 at 08:42:34PM +0100, Paul Bolle wrote:
> On Fri, 2011-02-04 at 13:38 -0500, Don Zickus wrote:
> > [All] I am interested in is the few
> > lines above the NMI watchdog error that starts with "Performance Events:"
>
> [ 0.016136] Performance Events:
> [ 0.016139] no APIC, boot with the "lapic" boot parameter to force-enable it
> [ 0.016142] no hardware sampling interrupt available.
> [ 0.016146] p6 PMU driver.
> [ 0.016151] ... version: 0
> [ 0.016153] ... bit width: 32
> [ 0.016156] ... generic registers: 2
> [ 0.016158] ... value mask: 00000000ffffffff
> [ 0.016161] ... max period: 000000007fffffff
> [ 0.016163] ... fixed-purpose events: 0
> [ 0.016166] ... event mask: 0000000000000003
> [ 0.017455] NMI watchdog disabled for cpu0: unable to create perf event: -95
>
> Feel free to ask me for what else might be needed here.
Thanks for the info. This is what I thought, the system has no lapic. I
think I am going to re-arrange some code to properly deal with this
scenario. Not having a lapic should not be a KERN_ERR, the nmi watchdog
should just accept it, print out a quiet message and move on. :-)
Thanks for finding this and providing the info!
Cheers,
Don
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