cpufreq(4) panic on RELENG_7 (was: Re: Call for bfe(4) testers.)

John Baldwin jhb at freebsd.org
Wed Aug 13 17:21:30 UTC 2008


On Wednesday 13 August 2008 03:33:45 am pluknet wrote:
> 2008/8/12 John Baldwin <jhb at freebsd.org>:
> > Try http://www.freebsd.org/~jhb/patches/cpufreq_order.patch  ichss0 is 
only
> > supposed to be used if you don't have est0, and this patch fixes that.  
I'm
> 
> Works now as it should (i.e. ichss0 does not attach).

Ok, committed then thanks.

> > curious if you get panics if you have disable est0 and leave ichss0 
enabled
> > or if that works ok?
> 
> Yes, it works ok with hint.est.0.disabled="1" (with somewhat different
> freq's (and subjectively a bit slower even with max freq)):
> 
> cpu0: <ACPI CPU> on acpi0
> ichss0: <SpeedStep ICH> on cpu0
> ichss0: enabling SpeedStep support
> p4tcc0: <CPU Frequency Thermal Control> on cpu0
> acpi_acad0: <AC Adapter> on acpi0
> 
> $ sysctl dev.cpu
> dev.cpu.0.%desc: ACPI CPU
> dev.cpu.0.%driver: cpu
> dev.cpu.0.%location: handle=\_PR_.CPU0
> dev.cpu.0.%pnpinfo: _HID=none _UID=0
> dev.cpu.0.%parent: acpi0
> dev.cpu.0.freq: 795
> dev.cpu.0.freq_levels: 1590/-1 1391/-1 1192/-1 993/-1 795/-1 596/-1
> 397/-1 198/-1
> dev.cpu.0.cx_supported: C1/1 C2/1 C3/85 C4/185
> dev.cpu.0.cx_lowest: C1
> dev.cpu.0.cx_usage: 100.00% 0.00% 0.00% 0.00%
> 
> Thanks,
> pluknet
> 



-- 
John Baldwin


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