2.4.7: wtf is "ksoftirqd_CPU0"
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i just installed 2.4.7, now a new process called "
ksoftirqd_CPU0" is started
automatically when booting (by the kernel obviously)? why? what does it do?
i didnt find any useful information on it in linuxdoc / linux-kernel archives
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It's the kernel soft IRQ daemon. It provides a context from which to execute 'slow' code that was triggered by an interrupt. There will be one per CPU.
DS
why wasnt it run in previous kernels? im just wondering why it suddenly appeared without anyone saying a word about it ;)
Quoted 1 line · peter k.
why wasnt it run in previous kernels?
Because it was only added to mainline in 2.4.7
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im just wondering why it suddenly
appeared without anyone saying a word about it ;)From the changelog...
-pre8:
- Paul Mackerras: PPC updates (softirq)
-pre5:
- Andrea Arkangeli: softirq cleanups and fixes, and everybody is happy again (ie I changed some details to make me happy ;)
There were also several discussions about Andreas ksoftirq patches a few weeks back.
regards,
Dave.
Signature · 2 lines
| Dave Jones. http://www.suse.de/~davej | SuSE Labs
Em Sat, Jul 21, 2001 at 06:29:37PM +0200, peter k. escreveu:
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i just installed 2.4.7, now a new process called "
ksoftirqd_CPU0" is started
automatically when booting (by the kernel obviously)? why? what does it do?
i didnt find any useful information on it in linuxdoc / linux-kernel archives
Quoted 5 lines
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It's the kernel soft IRQ daemon. It provides a context from which to execute 'slow' code that was triggered by an interrupt. There will be one per CPU.
why wasnt it run in previous kernels? im just wondering why it suddenly
because previous kernels had problems that Andrea's approach fixes? Read the archives for the thread about it.
- Arnaldo