Re: [Bug 5039] high cpu usage (softirq takes 50% all the time)
From: Arjan van de Ven
Date: Sat Oct 29 2005 - 03:37:23 EST
On Sat, 2005-10-29 at 01:09 -0700, Andrew Morton wrote:
> bugme-daemon@xxxxxxxxxxxxxxxxxxxx wrote:
> > http://bugzilla.kernel.org/show_bug.cgi?id=5039
> Well this is a depressing saga. A bunch of people whose machines appear to
> be spending 50% CPU time in softirq processing. Some find that `noapic'
> fixes it and some dont. Some are on x86_64, some are on x86.
> I suspect we have multiple bugs here. It's quite a mess.
> Could the reporters please, via a reply-to-all to this email:
> a) test 2.6.14.
> b) summarise the current status of your bug (what CPU type, what are the
> symptoms, any known workarounds, etc).
> c) Generate a kernel profile (see Documentation/basic_profiling.txt)
d) get a /proc/interrupts
to see if there's some screaming irq.. and if so which one
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