kern.hz=1000 causes random poweroff on laptop
Sam Leffler
sam at errno.com
Sat Apr 22 18:26:16 UTC 2006
Dag-Erling Smørgrav wrote:
> Lars Fredriksen <lars at odin-corporation.com> writes:
>> I have a laptop sony z505rx, that if booted with kern.hz as 1000, will
>> power off within a minute or two of booting.
>
> sounds like overheating.
I've noticed on several of my laptops that they run way hotter with
freebsd than other systems (linux, windows). Most are newer models that
have either acpi issues or lack speedstep support. But I suspect
there's something else going on in the basic system. I find it hard to
believe the clock rate is the cause of this extra work but haven't dug
into it (I hoped judicious use of hwpmc would pinpoint what's going on).
Sam
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