Package: procps
Version: 1:3.2.1-2
Severity: normal
On SMP host, vmstat sometimes show zero interrupt rate, while
interrupts do happen.
Example:
$ cat /proc/interrupts ; vmstat 1 5 ; cat /proc/interrupts
CPU0 CPU1
0: 314479374 3131525373 IO-APIC-edge timer
1: 12 1 IO-APIC-edge i8042
2: 0 0 XT-PIC cascade
8: 4 0 IO-APIC-edge rtc
18: 15 15 IO-APIC-level aic7xxx
19: 1062192 9248238 IO-APIC-level aic7xxx
20: 1365075045 1 IO-APIC-level eth0
22: 4749659 241349042 IO-APIC-level 3w-xxxx
NMI: 0 0
LOC: 3446442258 3446442271
ERR: 0
MIS: 0
procs -----------memory---------- ---swap-- -----io---- --system-- ----cpu----
r b swpd free buff cache si so bi bo in cs us sy id wa
1 0 22656 2444 68752 807788 1 1 0 5 6 1 22 9 64 5
1 0 22656 3088 68696 807232 0 0 2180 0 0 349 41 3 56 0
1 0 22656 3468 68500 807020 0 0 3460 16 0 449 41 7 53 0
0 1 22656 8632 68332 801884 0 0 3324 0 0 417 42 6 52 0
1 0 22656 5004 68332 805624 0 0 3720 0 0 443 42 6 52 0
CPU0 CPU1
0: 314479374 3131529412 IO-APIC-edge timer
1: 12 1 IO-APIC-edge i8042
2: 0 0 XT-PIC cascade
8: 4 0 IO-APIC-edge rtc
18: 15 15 IO-APIC-level aic7xxx
19: 1062192 9248244 IO-APIC-level aic7xxx
20: 1365083104 1 IO-APIC-level eth0
22: 4749659 241349150 IO-APIC-level 3w-xxxx
NMI: 0 0
LOC: 3446446298 3446446311
ERR: 0
MIS: 0
Problem can be observed only on 32bit procps.
64bit procps on Dual Opteron system (from alioth pure64 archive)
always gets interrupt rate right.
-- System Information:
Debian Release: 3.1
APT prefers testing
APT policy: (500, 'testing')
Architecture: i386 (i686)
Kernel: Linux 2.6.10-rc2
Locale: LANG=ru_RU.CP1251, LC_CTYPE=ru_RU.CP1251 (charmap=CP1251)
Versions of packages procps depends on:
ii libc6 2.3.2.ds1-20 GNU C Library: Shared libraries an
ii libncurses5 5.4-4 Shared libraries for terminal hand
-- no debconf information
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