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SubjectRe: linux-next: Tree for June 13: IO APIC breakage on HP nx6325
Date
On Wednesday, 18 of June 2008, Rafael J. Wysocki wrote:
> On Tuesday, 17 of June 2008, Rafael J. Wysocki wrote:
> > On Tuesday, 17 of June 2008, Thomas Gleixner wrote:
> > > On Tue, 17 Jun 2008, Rafael J. Wysocki wrote:
> > > >
> > > > BTW, with the C1E patches reverted I don't get the
> > > > WARNING: at /home/rafael/src/linux-next/kernel/smp.c:215 smp_call_function_single+0x3d/0xa2
> > > > in the log. Thomas?
> > >
> > > Yeah, my bad. Fix below.
> >
> > Thanks, it eliminates the WARNING, but still the box doesn't work with
> > the "x86: add C1E aware idle function" patch applied, even with 'highres=off'.
> >
> > The main symptom is that CPU loads are computed incorrectly (I got X using 126%
> > of CPU time from 'top', for example). Apart from this, some processes (like
> > gkrellm) seem to be 'frozen' and only change their state in 'jumps', as though
> > they only got CPU from time to time at random.
> >
> > Reverting the above-mentioned patch fixes those problems.
>
> Ah. If your fix is replaced with the appended one, the system happily works
> with C1E and highres.

Scratch that. The symptoms appeared later this time, that's all. I've just got
b43 consuming 90+ % of the CPU time. :-(

Thanks,
Rafael


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