[ltp] Re: weird occasional freezes on my thinkpad r60

[Peter Jordan]

Henrique de Moraes Holschuh, 01/29/08 02:44:

> On Mon, 28 Jan 2008, Peter Jordan wrote:
>> I have weird occasional freezes on my thinkpad r60 (debian lenny, kernel
>> 2.6.24 (and earlier), thinkpad_acpi, tuxonice, tp_smapi). Most often my
>> notebook freezes when i plug in the ac-adapter. I don't know, what the
>> problem is and where to search for. the logs say nothing.
> 
> Look at /proc/interrupts.  Is your NMI counter zero?  If not, remove all
> NMI-causing stuff from your kernel (likely, the NMI watchdog).
> 

i think so: NMI:          0          0   Non-maskable interrupts

>> Any ideas or suggestions?
> 
> Plugging the AC adapter causes a SMI, then ACPI activity (interrupt, etc),
> then an ACPI event to userspace.  Could be anything, from hardware, thorough
> kernel, to userspace trying to up brightness, etc.
> 


Yes, that is why its difficult


PJ