FreeBSD 7.0-current Locks During Device Probe--Solved
Kris Kennaway
kris at FreeBSD.org
Tue Oct 9 01:18:52 PDT 2007
Søren Schmidt wrote:
> Dave Frantz wrote:
>> I finally figured out what was causing FreeBSD 7.0-current to crash on
>> my machine during the device probe. It turns out that if options
>> CPUFREQ is compiled in, the system will not boot. However, it can be
>> safely kldloaded in later.
>>
>> I'm not entirely sure why my system dislikes CPUFREQ, but I can live
>> without it. If you guys have any questions or anything, just let me know.
> Thanks for the report!
>
> I've had problems with cpufreq before, but that was when running gdm, it
> would lock the system solid if loaded before gdm was started but worked
> fine afterwards.
The only problems I had were to do with acpi throttling in conjunction
with cpufreq, which would hang my dual core opteron. Unfortunately I
have forgotten the tunable to disable this but you should be able to
google for it. Disabling acpi would also do it with a sledgehammer on i386.
Kris
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