* Non-maskable interrupt
@ 2014-10-22 15:26 J.Hwan Kim
2014-10-22 17:37 ` Valdis.Kletnieks at vt.edu
0 siblings, 1 reply; 6+ messages in thread
From: J.Hwan Kim @ 2014-10-22 15:26 UTC (permalink / raw)
To: kernelnewbies
Hi, everyone
In my system, NMI intrrupt counter is increased continuously,
which I found in /proc/interrupts.
How can I find the reasons of NMI interrupts?
Best Regards
Kim.
^ permalink raw reply [flat|nested] 6+ messages in thread
* Non-maskable interrupt
2014-10-22 15:26 Non-maskable interrupt J.Hwan Kim
@ 2014-10-22 17:37 ` Valdis.Kletnieks at vt.edu
2014-10-23 1:47 ` J.Hwan Kim
0 siblings, 1 reply; 6+ messages in thread
From: Valdis.Kletnieks at vt.edu @ 2014-10-22 17:37 UTC (permalink / raw)
To: kernelnewbies
On Thu, 23 Oct 2014 00:26:32 +0900, "J.Hwan Kim" said:
> Hi, everyone
>
> In my system, NMI intrrupt counter is increased continuously,
> which I found in /proc/interrupts.
> How can I find the reasons of NMI interrupts?
How fast are they increasing? A few an hour? A few a minute?
50 or 60 a second?
What does 'grep -i nmi your-config-here' return?
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^ permalink raw reply [flat|nested] 6+ messages in thread
* Non-maskable interrupt
2014-10-22 17:37 ` Valdis.Kletnieks at vt.edu
@ 2014-10-23 1:47 ` J.Hwan Kim
2014-10-23 2:06 ` Valdis.Kletnieks at vt.edu
0 siblings, 1 reply; 6+ messages in thread
From: J.Hwan Kim @ 2014-10-23 1:47 UTC (permalink / raw)
To: kernelnewbies
2014? 10? 23? 02:37? Valdis.Kletnieks at vt.edu ?(?) ? ?:
> On Thu, 23 Oct 2014 00:26:32 +0900, "J.Hwan Kim" said:
>> Hi, everyone
>>
>> In my system, NMI intrrupt counter is increased continuously,
>> which I found in /proc/interrupts.
>> How can I find the reasons of NMI interrupts?
> How fast are they increasing? A few an hour? A few a minute?
once per second...
and I found the nmi couter is same with PMI.
> What does 'grep -i nmi your-config-here' return?
My kernel config about NMI is as follows :
CONFIG_DEBUG_NMI_TIMEOUT=5
CONFIG_HAVE_FTRACE_NMI_ENTER=y
CONFIG_FTRACE_NMI_ENTER=y
Thanks
^ permalink raw reply [flat|nested] 6+ messages in thread
* Non-maskable interrupt
2014-10-23 1:47 ` J.Hwan Kim
@ 2014-10-23 2:06 ` Valdis.Kletnieks at vt.edu
2014-10-23 2:20 ` J.Hwan Kim
0 siblings, 1 reply; 6+ messages in thread
From: Valdis.Kletnieks at vt.edu @ 2014-10-23 2:06 UTC (permalink / raw)
To: kernelnewbies
On Thu, 23 Oct 2014 10:47:57 +0900, "J.Hwan Kim" said:
> > How fast are they increasing? A few an hour? A few a minute?
> once per second...
I bet 'cat /proc/sys/kernel/nmi_watchdog' returns '1'.
See Documentation/lockup-watchdogs.txt
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^ permalink raw reply [flat|nested] 6+ messages in thread
* Non-maskable interrupt
2014-10-23 2:06 ` Valdis.Kletnieks at vt.edu
@ 2014-10-23 2:20 ` J.Hwan Kim
2014-10-23 17:56 ` Paul Bolle
0 siblings, 1 reply; 6+ messages in thread
From: J.Hwan Kim @ 2014-10-23 2:20 UTC (permalink / raw)
To: kernelnewbies
2014? 10? 23? 11:06? Valdis.Kletnieks at vt.edu ?(?) ? ?:
> On Thu, 23 Oct 2014 10:47:57 +0900, "J.Hwan Kim" said:
>
>>> How fast are they increasing? A few an hour? A few a minute?
>> once per second...
> I bet 'cat /proc/sys/kernel/nmi_watchdog' returns '1'.
>
> See Documentation/lockup-watchdogs.txt
In my kernel, there is no kernel paramter of nmi_watchdog and
I cannot find the /proc/sys/kernel/nmi_watchdog file in my system.
^ permalink raw reply [flat|nested] 6+ messages in thread
* Non-maskable interrupt
2014-10-23 2:20 ` J.Hwan Kim
@ 2014-10-23 17:56 ` Paul Bolle
0 siblings, 0 replies; 6+ messages in thread
From: Paul Bolle @ 2014-10-23 17:56 UTC (permalink / raw)
To: kernelnewbies
On Thu, 2014-10-23 at 11:20 +0900, J.Hwan Kim wrote:
> In my kernel, there is no kernel paramter of nmi_watchdog
Is CONFIG_HARDLOCKUP_DETECTOR not set in your .config?
> and I cannot find the /proc/sys/kernel/nmi_watchdog file in my system.
Is CONFIG_LOCKUP_DETECTOR not set in your .config?
Paul Bolle
^ permalink raw reply [flat|nested] 6+ messages in thread
end of thread, other threads:[~2014-10-23 17:56 UTC | newest]
Thread overview: 6+ messages (download: mbox.gz follow: Atom feed
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2014-10-22 15:26 Non-maskable interrupt J.Hwan Kim
2014-10-22 17:37 ` Valdis.Kletnieks at vt.edu
2014-10-23 1:47 ` J.Hwan Kim
2014-10-23 2:06 ` Valdis.Kletnieks at vt.edu
2014-10-23 2:20 ` J.Hwan Kim
2014-10-23 17:56 ` Paul Bolle
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