Messages in this thread | | | Date | Thu, 11 Mar 2004 13:21:11 -0500 | From | Brad Laue <> | Subject | Re: ksoftirqd using mysteriously high amounts of CPU time |
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Yury V. Umanets wrote: > On Thu, 2004-03-11 at 19:22, Brad Laue wrote: > >>Yury V. Umanets wrote: >> >>>Hello, >>> >>>I have impression, that it is somehow related to ACPI and CPU >>>temperature. When CPU gets more hot ksoftirqd starts to eat 99% of CPU. >>> >>>It may be checked by disabling ACPI (if enabled) and/or monitoring >>>/proc/acpi/thermal_zone/THRM/temperature (if any). >> >>Happens on a system without ACPI or Power Management of any kind enabled >>though. >> >>Brad > > Then have you seen clear dependence of ksoftirqd getting crazy on system > load? Or something else?
Not sure what you mean; when the problem begins to get bad, anything that tries to use a network interface causes ksoftirqd to jump to 99% CPU, and eventually it just stays there at idle. The process trying to use the network uses abnormal amounts of CPU time as well.
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