acpi problems and "stray irq6"
gbergling at 0xfce3.net
Thu Nov 11 07:57:14 PST 2004
On Wed Nov 10, 2004 at 11:56AM -0800, Nate Lawson wrote:
> Gordon Bergling wrote:
> >At first there is a problem regarding the speed managment of the cpu.
> >Normally and acpi managed cpu should be controlable of the
> >"hw.acpi.cpu.throttle_state" sysctl. This sysctl doesn't exist. Without
> >this capability the cpu is all the time running at ~ 800 MHz, which
> >makes build world not really fast. ;)
> >Has anyone an idea how I could enable this feature?
> Did it ever have a working throttle feature before? If not, it's not
> likely to support throttling.
It's likely not supporting throttling. I wasn't aware of the powernow
> Modern systems aren't usually controlled by throttling but with CPU
> frequency control. You should try the powernow driver.
I had tried this driver yesterday, but I got the following error
|Powernow: frequency scaling yes -- voltage scaling yes
|module_regiser_init: MOD_LOAD (powernow_k7, 0xc1f77488, 0) error 22
Any hint on what I can do to solve this?
I just typed make to compile the ko and copied it to /boot/kernel.
Afterwards I kldload it.
> >The second problem is that I get these messages short after the boot:
> >'stray irq6' and 'stray irq1'. I had read in the FAQ thats this should't
> >be a problem, but based on "vmstat -i" the notebook hasn't an device on
> >irq 6. Thats curious I think.
> irq 6 is floppy and irq 1 is keyboard. I see your notebook has an
> IOAPIC. It's likely that the legacy interrupt links aren't being
> disabled when the apic is enabled. John's new PCI irq routing code
> should handle this (it's not possible with the current arch for link
> devices). If you don't have any actual problems (i.e. hangs), the extra
> interrupts are harmless.
Thanks for the good explanation. I haven't had any hangs this time so I
thats these 'warnings' are harmless.
Gordon Bergling <GBergling at 0xfce3.net> http://www.0xFCE3.net/
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