lkml.org 
[lkml]   [2000]   [Sep]   [29]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
SubjectRe: [patch] enabling APIC and NMI watchdog on UP systems
Date
From
> what is wrong with clearing the first performance counter before using it?
> The NMI oopser is completely nonintrusive.
>
> so on UP systems you'll have to choose between the NMI oopser and other
> uses of the first counter. You can save/restore the contents of the first
> counter if you want to reactivate the NMI oopser. This is all user-space
> policy, the kernel doesnt mind.

Thanks for the info: I'd entirely forgotten about the inter-APIC comms
bus. That given, I have no problem with clearing the perfctr before
use. The NMI oopser has saved my bacon on more than one occasion :)

-- Keir
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2005-03-22 12:39    [W:0.099 / U:0.312 seconds]
©2003-2018 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site