On Wed, May 07, 2014 at 05:42:31PM +0200, Ingo Molnar wrote: > > * 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.
Agreed! It wasn't obvious to me at the time on how to keep that alignment while only changing the first column. I can look at it again, if you are ok with the small shift in the first column. Otherwise alternate ideas are welcomed. :-) Cheers, Don -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
