Re: [PATCH] NMI trigger switch support for debugging

[AKIYAMA Nobuyuki]

Hi Andrew,

Andrew Morton wrote:

> AKIYAMA Nobuyuki <akiyama.nobuyuk@xxxxxxxxxxxxxx> wrote:
>  
>
> > Sorry, I resend document and patch.
> >    
>
> Great, thanks.  Updates to Documentation/kernel-parameters.txt and
> Documentation/filesystems/proc.txt would be nice.
>
>
> If the machine locks up with interrupts enabled we can use sysrq-T and
> sysrq-P.  If it locks up with interrupts disabled the NMI watchdog will
> automatically produce the same info as your patch.  So what advantage does
> the patch add?
>  

People who think performance is very important and want to run only program
they need tend not to use NMI watchdog.
My patch does not affect performance at all, and it just run when NMI switch
is pressed. Whenever debugging information is needed, we can always get it.

Regards,
Nobuyuki Akiyama


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