From mboxrd@z Thu Jan  1 00:00:00 1970
Message-ID: <439d9767ddd20378da8de3abb8972eb9@plan9.ucalgary.ca>
To: 9fans@cse.psu.edu
Date: Tue, 12 Apr 2005 11:22:36 -0600
From: andrey mirtchovski <mirtchov@cpsc.ucalgary.ca>
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Subject: [9fans] interrupts (non-plan9 related)
Topicbox-Message-UUID: 3675bcdc-ead0-11e9-9d60-3106f5b1d025

i've got a dual-cpu machine running linux.  i'm looking at sar reports
for the box and can't really understand what happens -- the machine
services all interrupts at CPU0 (actually the first hyperthreaded part
of CPU0).

is this supposed to be normal?

here is how the interrupts were reported just before a major crash:



21:30:48 PM CPU i000/s i001/s i002/s i008/s i011/s i014/s i027/s i028/s i029/s i030/s
21:30:58 PM 0 99.90 0.00 0.00 0.00 0.00 0.00 500.60 1.80 671.90 4.30
21:30:58 PM 1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
21:30:58 PM 2 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
21:30:58 PM 3 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
21:31:08 PM 0 100.00 0.00 0.00 0.00 0.00 0.00 639.80 0.00 2570.20 4.10
21:31:08 PM 1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
21:31:08 PM 2 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
21:31:08 PM 3 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
Average:       0  100.00    0.00    0.00    0.00    0.00    0.00  146.48    0.60 2671.07 1318.77
Average:       1    0.00    0.00    0.00    0.00    0.00    0.00    0.00    0.00    0.00    0.00
Average:       2    0.00    0.00    0.00    0.00    0.00    0.00    0.00    0.00    0.00    0.00
Average:       3    0.00    0.00    0.00    0.00    0.00    0.00    0.00    0.00    0.00    0.00