Re: Uhhuh. NMI received for unknown reason 2c on CPU 0.

[Jiri Slaby]

On 01/31/2013 02:18 PM, Borislav Petkov wrote:
> On Thu, Jan 31, 2013 at 09:28:12AM +0100, Jiri Slaby wrote:
>> And, does it happen if you switch all of them but NMI wtd in there?
> 
> No, but something else happens. Here's the whole dance:
> 
> 1. Switch all tunables except "NMI watchdog should be turned off" to "Good"
> 2. suspend to disk
> 3. resume... all good
> 4. switch "NMI watchdog should be turned off" to "Good"
> 5. suspend to disk
> 6. resume... all good
> 7. start powertop, toggle "Wireless Power Saving for interface wlan0" twice.
> I.e., "Good" -> "Bad"; "Bad" -> "Good".
> 
> -> Boom! Unknown reason NMI. It happened right during the toggle because
> it appeared in the framebuffer console (no X) right during me toggling
> this.

Right, for me too. Even if I disable nmi watchdog in both the boot and
image kernel, the NMI eventually occurs (dunno what's the trigger now
though).

Given the above I'm thinking about switching that intel wi-fi card to
ath9k which I have at hand and retest...

-- 
js
suse labs
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