SMP Frequent Lockups

[Eduardo Kaftanski]

> 
> Could you please first verify couple of things:
> 
> 1) if you boot non-SMP kernel and try the latest CVS version of Host AP
>    driver, the host does not crash (at least frequently)
> 2) can you enable NMI watchdog? (see Linux kernel
>    Documentation/nmi_watchdog.txt; verify that NMI counter increases in
>    /proc/interrupts)
> 
> Unfortunately, I have been only able to test with hostap_cs and
> hostap_plx on an SMP host and I was unable to crash the box. Since you
> have a card using hostap_pci, it would be nice to get more testing on
> that.
> 
> Before doing any changes to the driver, I would like to know whether you
> can get any output from the lockup when using SMP-kernel. I would
> suggest enabling NMI watchdog, moving to text mode, setting console
> logging level to maximum ('dmesg -n 8'). Then do whatever is needed to
> hang the system. Wait about 10 seconds and hope that something will be
> printed on screen.
> 

I can do that tonight and report... how can I enable the watchdog?


-- 
Eduardo Kaftanski
eduardo at linuxcenter.cl
Red Hat Certified Engineer
Gerente Ingenieria LinuxCenter S.A.
Canada 239 5to Piso, Providencia, Stgo de Chile.
http://www.linuxcenter.cl 2745000