Re: [Bug 5039] high cpu usage (softirq takes 50% all the time)

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On Sat, 2005-10-29 at 01:09 -0700, Andrew Morton wrote:
> [email protected] 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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