* Don Zickus <[email protected]> wrote:
> The main reason for this patch is because I have a hard time knowing
> what NMI handlers are registered on the system when debugging NMI issues.
>
> This info is provided in /proc/interrupts for interrupt handlers, so I
> added support for NMI stuff too. As a bonus it provides stat breakdowns
> much like the interrupts.
>
> The only ugly issue is how to label NMI subtypes using only 3 letters
> and still make it obvious it is part of the NMI. Adding a /proc/nmi
> seemed overkill, so I choose to indent things by one space. Sample
> output is below:
>
> [root@dhcp71-248 ~]# cat /proc/interrupts
> CPU0 CPU1 CPU2 CPU3
> 0: 29 0 0 0 IR-IO-APIC-edge timer
> <snip>
> NMI: 20 774 10986 4227 Non-maskable interrupts
> LOC: 21 775 10987 4228 Local PMI, arch_bt
> EXT: 0 0 0 0 External plat
> UNK: 0 0 0 0 Unknown
> SWA: 0 0 0 0 Swallowed
> LOC: 30374 24749 20795 15095 Local timer interrupts
> SPU: 0 0 0 0 Spurious interrupts
> PMI: 20 774 10986 4227 Performance monitoring
> interrupts
> <snip>
Looks pretty useful!
The lost vertical alignment of the counts is a problem though IMHO.
Thanks,
Ingo
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