Ralf Hildebrandt <[email protected]> wrote:
>
I might not have read your email for two days. And you removed from Cc the
people who actually have a chance of fixing this. Please always do
reply-to-all.
> * Andrew Morton <[email protected]>:
>
> > In acpi_processor_unregister_performance(), pr->performance is NULL.
> >
> > Can you add the below? It should tell us who forgot to register the
> > performance data, as well as working around the crash.
>
> I added the patch.
> in dmesg I now get:
>
> > Apr 4 09:54:06 knarzkiste kernel: powernow-k8: Found 1 AMD Athlon 64 / Opteron processors (version 1.60.1)
> > Apr 4 09:54:06 knarzkiste kernel: powernow-k8: 0 : fid 0x0 (800 MHz), vid 0x12 (1100 mV)
> > Apr 4 09:54:06 knarzkiste kernel: powernow-k8: 1 : fid 0x8 (1600 MHz), vid 0x4 (1450 mV)
> > Apr 4 09:54:06 knarzkiste kernel: cpu_init done, current fid 0x8, vid 0x2
> > Apr 4 09:54:06 knarzkiste kernel: powernow-k8: ph2 null fid transition 0x8
>
> > Apr 4 09:54:25 knarzkiste kernel: powernow-k8: Found 1 AMD Athlon 64 / Opteron processors (version 1.60.1)
> > Apr 4 09:54:25 knarzkiste kernel: powernow-k8: 0 : fid 0x0 (800 MHz), vid 0x12 (1100 mV)
> > Apr 4 09:54:25 knarzkiste kernel: powernow-k8: 1 : fid 0x8 (1600 MHz), vid 0x4 (1450 mV)
> > Apr 4 09:54:25 knarzkiste kernel: cpu_init done, current fid 0x8, vid 0x4
>
> > Apr 4 09:54:44 knarzkiste kernel: powernow-k8: Found 1 AMD Athlon 64 / Opteron processors (version 1.60.1)
> > Apr 4 09:54:45 knarzkiste kernel: powernow-k8: 0 : fid 0x0 (800 MHz), vid 0x12 (1100 mV)
> > Apr 4 09:54:45 knarzkiste kernel: powernow-k8: 1 : fid 0x8 (1600 MHz), vid 0x4 (1450 mV)
> > Apr 4 09:54:45 knarzkiste kernel: cpu_init done, current fid 0x8, vid 0x4
>
> So, no more EIPs, but no conclusive messages either!
OK, thanks. That indicates that we did install a
acpi_processor_performance structure, but something must have later on
zeroed it.
Hopefully the cpufreq guys will be able to reproduce this.
<tries it>
Actually, I cannot even rmmod the thing:
Module Size Used by
p4_clockmod 6980 1
speedstep_lib 5376 1 p4_clockmod
It looks like either it has a refcounting problem or it has been changed so
that it is deliberately pinned.
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