Re: [PATCH] perfcounters: IRQ and NMI support on AMD CPUs

From: Jaswinder Singh Rajput
Date: Thu Mar 05 2009 - 15:02:28 EST

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In reply to: Ingo Molnar: "Re: [PATCH] perfcounters: IRQ and NMI support on AMD CPUs"
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On Thu, 2009-03-05 at 20:41 +0100, Ingo Molnar wrote:
> * Peter Zijlstra <peterz@xxxxxxxxxxxxx> wrote:
>
> > On Fri, 2009-03-06 at 00:26 +0530, Jaswinder Singh Rajput wrote:
> >
> > > But kerneltop is still not working and I am not getting any NMI Interrupts.
> >
> > Does the below work for you?
> >
> > The BKGD suggests its 48 for all existing machines (it
> > certainly is for mine).
>
> Yeah, this did the trick on AMD/Barcelona!
>

Nice.

but on my AMD box I got interrupts and NMI for some time:

NMI: 100 1108209 Non-maskable interrupts
LOC: 213 192815 Local timer interrupts
CNT: 100 1108206 Performance counter interrupts
RES: 21132 20397 Rescheduling interrupts

but kerneltop does not show anything, it only shows # irqs/sec for some
time and then irqs also become 0.

Here is demg:

kerneltop
[ 196.677297] Uhhuh. NMI received for unknown reason 00 on CPU 1.
[ 196.677297] Do you have a strange power saving mode enabled?
[ 196.677297] Dazed and confused, but trying to continue
[ 198.854293] PERFMON: max interrupts exceeded!
[ 198.865302] PERFMON: max interrupts exceeded!
[ 198.866304] PERFMON: max interrupts exceeded!
[ 206.066271] PERFMON: max interrupts exceeded!
[ 206.067304] PERFMON: max interrupts exceeded!
[ 206.068265] PERFMON: max interrupts exceeded!
[ 211.176291] PERFMON: max interrupts exceeded!
[ 211.177302] PERFMON: max interrupts exceeded!
[ 211.235304] PERFMON: max interrupts exceeded!
[ 211.236296] PERFMON: max interrupts exceeded!
[ 214.245302] PERFMON: max interrupts exceeded!
[ 225.257276] PERFMON: max interrupts exceeded!
[ 225.258271] PERFMON: max interrupts exceeded!
[ 297.385301] PERFMON: max interrupts exceeded!
[ 297.386290] PERFMON: max interrupts exceeded!
[ 310.405304] PERFMON: max interrupts exceeded!
[ 392.677261] Uhhuh. NMI received for unknown reason 00 on CPU 1.
[ 392.677261] Do you have a strange power saving mode enabled?
[ 392.677261] Dazed and confused, but trying to continue
[ 394.837275] PERFMON: max interrupts exceeded!
[ 394.848268] PERFMON: max interrupts exceeded!
[ 394.849266] PERFMON: max interrupts exceeded!
[ 396.891309] PERFMON: max interrupts exceeded!
[ 396.892294] PERFMON: max interrupts exceeded!
[ 397.415302] PERFMON: max interrupts exceeded!
[ 397.594299] PERFMON: max interrupts exceeded!
[ 398.395302] PERFMON: max interrupts exceeded!
[ 398.919304] PERFMON: max interrupts exceeded!
[ 403.839309] __ratelimit: 1 callbacks suppressed
[ 403.839319] PERFMON: max interrupts exceeded!
[ 403.840302] PERFMON: max interrupts exceeded!
[ 403.841298] PERFMON: max interrupts exceeded!
[ 403.842297] PERFMON: max interrupts exceeded!
[ 403.843267] PERFMON: max interrupts exceeded!
[ 403.853303] PERFMON: max interrupts exceeded!
[ 403.854290] PERFMON: max interrupts exceeded!
[ 403.855301] PERFMON: max interrupts exceeded!
[ 403.857301] PERFMON: max interrupts exceeded!
[ 403.858304] PERFMON: max interrupts exceeded!
[ 409.097310] __ratelimit: 13 callbacks suppressed
[ 409.097321] PERFMON: max interrupts exceeded!
[ 409.098299] PERFMON: max interrupts exceeded!
[ 411.138303] PERFMON: max interrupts exceeded!
[ 413.177301] PERFMON: max interrupts exceeded!
[ 413.178289] PERFMON: max interrupts exceeded!
[ 414.442311] PERFMON: max interrupts exceeded!
[ 415.217304] PERFMON: max interrupts exceeded!
[ 415.218291] PERFMON: max interrupts exceeded!
[ 417.257307] PERFMON: max interrupts exceeded!
[ 417.258294] PERFMON: max interrupts exceeded!
[ 418.585295] PERFMON: max interrupts exceeded!
[ 418.600293] PERFMON: max interrupts exceeded!
[ 427.436301] PERFMON: max interrupts exceeded!
[ 427.437307] PERFMON: max interrupts exceeded!
[ 429.477269] PERFMON: max interrupts exceeded!
[ 429.479264] PERFMON: max interrupts exceeded!
[ 431.514269] PERFMON: max interrupts exceeded!
[ 431.516294] PERFMON: max interrupts exceeded!
[ 433.557303] PERFMON: max interrupts exceeded!
[ 433.558290] PERFMON: max interrupts exceeded!
[ 435.585305] PERFMON: max interrupts exceeded!
[ 435.586291] PERFMON: max interrupts exceeded!
[ 435.620276] PERFMON: max interrupts exceeded!
[ 437.619294] PERFMON: max interrupts exceeded!
[ 437.620295] PERFMON: max interrupts exceeded!
[ 437.621289] PERFMON: max interrupts exceeded!
[ 437.622290] PERFMON: max interrupts exceeded!
[ 439.637302] PERFMON: max interrupts exceeded!
[ 439.638291] PERFMON: max interrupts exceeded!
[ 439.645301] PERFMON: max interrupts exceeded!
[ 439.646298] PERFMON: max interrupts exceeded!
[ 441.684302] PERFMON: max interrupts exceeded!
[ 441.685298] PERFMON: max interrupts exceeded!
[ 456.974308] PERFMON: max interrupts exceeded!
[ 466.542303] PERFMON: max interrupts exceeded!
[ 468.924294] PERFMON: max interrupts exceeded!
[ 471.246282] PERFMON: max interrupts exceeded!
[ 471.257269] PERFMON: max interrupts exceeded!
[ 471.258268] PERFMON: max interrupts exceeded!
[ 473.295297] PERFMON: max interrupts exceeded!
[ 473.296301] PERFMON: max interrupts exceeded!
[ 475.312292] PERFMON: max interrupts exceeded!
[ 475.323302] PERFMON: max interrupts exceeded!
[ 475.324302] PERFMON: max interrupts exceeded!
[ 477.346303] PERFMON: max interrupts exceeded!
[ 477.347300] PERFMON: max interrupts exceeded!
[ 479.381303] PERFMON: max interrupts exceeded!
[ 480.685269] PERFMON: max interrupts exceeded!
[ 480.686270] PERFMON: max interrupts exceeded!
[ 481.405307] PERFMON: max interrupts exceeded!
[ 483.425304] PERFMON: max interrupts exceeded!
[ 483.426291] PERFMON: max interrupts exceeded!
[ 485.461306] PERFMON: max interrupts exceeded!
[ 485.462293] PERFMON: max interrupts exceeded!
[ 487.499304] PERFMON: max interrupts exceeded!
[ 487.500290] PERFMON: max interrupts exceeded!
[ 489.524279] PERFMON: max interrupts exceeded!
[ 491.546304] PERFMON: max interrupts exceeded!
[ 491.547292] PERFMON: max interrupts exceeded!
[ 491.548285] PERFMON: max interrupts exceeded!
[ 493.581307] PERFMON: max interrupts exceeded!
[ 493.582301] PERFMON: max interrupts exceeded!
[ 495.605303] PERFMON: max interrupts exceeded!
[ 495.606311] PERFMON: max interrupts exceeded!
[ 497.641303] PERFMON: max interrupts exceeded!
[ 499.665303] PERFMON: max interrupts exceeded!
[ 499.666325] PERFMON: max interrupts exceeded!
[ 501.699295] PERFMON: max interrupts exceeded!
[ 501.700301] PERFMON: max interrupts exceeded!
[ 503.715304] PERFMON: max interrupts exceeded!
[ 503.716292] PERFMON: max interrupts exceeded!
[ 503.717309] PERFMON: max interrupts exceeded!
[ 503.725302] PERFMON: max interrupts exceeded!
[ 505.748271] PERFMON: max interrupts exceeded!
[ 505.749382] PERFMON: max interrupts exceeded!
[ 507.782304] PERFMON: max interrupts exceeded!
[ 507.783291] PERFMON: max interrupts exceeded!
[ 509.804303] PERFMON: max interrupts exceeded!
[ 509.805302] PERFMON: max interrupts exceeded!
[ 511.840303] PERFMON: max interrupts exceeded!
[ 511.841299] PERFMON: max interrupts exceeded!
[ 515.565261] Uhhuh. NMI received for unknown reason 00 on CPU 1.
[ 515.565261] Do you have a strange power saving mode enabled?
[ 515.565261] Dazed and confused, but trying to continue
[ 515.569284] PERFMON: max interrupts exceeded!
[ 515.570372] PERFMON: max interrupts exceeded!
[ 515.571355] PERFMON: max interrupts exceeded!
[ 515.574304] PERFMON: max interrupts exceeded!
[ 515.575287] PERFMON: max interrupts exceeded!
[ 515.576283] PERFMON: max interrupts exceeded!
[ 515.577289] PERFMON: max interrupts exceeded!
[ 515.579318] PERFMON: max interrupts exceeded!
[ 516.948088] __ratelimit: 113 callbacks suppressed
[ 516.948118] PERFMON: max interrupts exceeded!
[ 516.951315] PERFMON: max interrupts exceeded!
[ 516.952298] PERFMON: max interrupts exceeded!
[ 516.953315] PERFMON: max interrupts exceeded!
[ 516.954406] PERFMON: max interrupts exceeded!
[ 516.955390] PERFMON: max interrupts exceeded!
[ 516.956336] PERFMON: max interrupts exceeded!
[ 516.957277] PERFMON: max interrupts exceeded!
[ 516.958285] PERFMON: max interrupts exceeded!
[ 516.959313] PERFMON: max interrupts exceeded!
[ 522.039265] __ratelimit: 248 callbacks suppressed
[ 522.039294] PERFMON: max interrupts exceeded!
[ 522.040321] PERFMON: max interrupts exceeded!
[ 522.042299] PERFMON: max interrupts exceeded!
[ 522.043287] PERFMON: max interrupts exceeded!
[ 522.044277] PERFMON: max interrupts exceeded!
[ 522.045299] PERFMON: max interrupts exceeded!
[ 522.048017] PERFMON: max interrupts exceeded!
[ 522.148095] PERFMON: max interrupts exceeded!
[ 522.149279] PERFMON: max interrupts exceeded!
[ 522.151350] PERFMON: max interrupts exceeded!
[ 527.043304] __ratelimit: 1024 callbacks suppressed
[ 527.043314] PERFMON: max interrupts exceeded!
[ 527.044303] PERFMON: max interrupts exceeded!
[ 527.045298] PERFMON: max interrupts exceeded!
[ 527.046291] PERFMON: max interrupts exceeded!
[ 527.047271] PERFMON: max interrupts exceeded!
[ 527.048276] PERFMON: max interrupts exceeded!
[ 527.049303] PERFMON: max interrupts exceeded!
[ 527.052303] PERFMON: max interrupts exceeded!
[ 527.053566] PERFMON: max interrupts exceeded!
[ 527.054304] PERFMON: max interrupts exceeded!
[ 532.049312] __ratelimit: 2191 callbacks suppressed
[ 532.049321] PERFMON: max interrupts exceeded!
[ 532.050303] PERFMON: max interrupts exceeded!
[ 532.052298] PERFMON: max interrupts exceeded!
[ 532.053305] PERFMON: max interrupts exceeded!
[ 532.065291] PERFMON: max interrupts exceeded!
[ 532.067263] PERFMON: max interrupts exceeded!
[ 532.069299] PERFMON: max interrupts exceeded!
[ 532.071300] PERFMON: max interrupts exceeded!
[ 532.073311] PERFMON: max interrupts exceeded!
[ 532.075302] PERFMON: max interrupts exceeded!
[ 537.062306] __ratelimit: 1414 callbacks suppressed
[ 537.062335] PERFMON: max interrupts exceeded!
[ 537.063443] PERFMON: max interrupts exceeded!
[ 537.066285] PERFMON: max interrupts exceeded!
[ 537.067289] PERFMON: max interrupts exceeded!
[ 537.068282] PERFMON: max interrupts exceeded!
[ 537.069322] PERFMON: max interrupts exceeded!
[ 537.071312] PERFMON: max interrupts exceeded!
[ 537.072295] PERFMON: max interrupts exceeded!
[ 537.073279] PERFMON: max interrupts exceeded!
[ 537.074287] PERFMON: max interrupts exceeded!
[root@hpdv5 new]#

--
JSR

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Next message: Sven-Thorsten Dietrich: "Re: [patch 0/4] genirq: add infrastructure for threaded interrupthandlers V2"
Previous message: Dan Smith: "Re: [PATCH] s390: Expose a constant for the number of words representing the CRs"
In reply to: Ingo Molnar: "Re: [PATCH] perfcounters: IRQ and NMI support on AMD CPUs"
Next in thread: Mike Galbraith: "Re: [PATCH] perfcounters: IRQ and NMI support on AMD CPUs"
Messages sorted by: [ date ] [ thread ] [ subject ] [ author ]