Powerd makes computer hang
nate at root.org
Thu Aug 24 16:37:25 UTC 2006
Kevin Oberman wrote:
>> Date: Thu, 24 Aug 2006 16:47:38 +1000
>> From: Peter Jeremy <peterjeremy at optushome.com.au>
>> Sender: owner-freebsd-acpi at freebsd.org
>> Content-Type: text/plain; charset=us-ascii
>> Content-Disposition: inline
>> Content-Transfer-Encoding: quoted-printable
>> I've just upgraded my HP nx6125 to an up-to-date -current and
>> my powerd(8) emulator still wedges it solid.
>>  A perl script that pseudo-randomly changes dev.cpu.0.freq
> Also, I think that debug.cpufreq.lowest can be used to limit the low
> speed and avoid the ones that cause hangs.
That, and if you find the problem driver, you can just disable it
If that doesn't work, try disabling acpi_throttle the same way.
Figuring out which cpufreq drivers are attached on your system would be
a good start (dmesg | grep cpu).
All other cpufreq drivers will continue to function just fine. That's
why the title of this message is misleading. cpufreq is a framework,
not a single driver. It's like saying "PCI makes my system hang".
More information about the freebsd-acpi