Powerd makes computer hang
nate at root.org
Mon Aug 21 05:51:03 UTC 2006
Boris Samorodov wrote:
> On Sun, 20 Aug 2006 21:05:45 +1000 Peter Jeremy wrote:
>> On Sun, 2006-Aug-20 16:00:33 +1000, Tim Dettloff wrote:
>>> I have installed FreeBSD 6.1-RELEASE on my Compaq Presario 2656AU
>>> laptop, but it occasionally hangs. I traced the problem to powerd so I
>>> made a script that kept changing the clock rate by setting the sysctl
>>> dev.cpu.0.freq. This script normally makes the computer hang within 10
>>> seconds or so.
>> Sam Leffler noticed this on his nx6125 last December and I also
>> found the same problem on my nx6125 in early February. It looks
>> like there's a race condition in the BIOS code.
>>> Any Ideas?
>> My current solution is to manually change the speed using sysctl.
>> This doesn't seem to trigger the problem quite as often (though your
>> laptop seems far more sensitive than mine). I would also be interested
>> in any real solutions.
> Glebius@ (CCed) sent me a patch against 6-STABLE which solves the
> problem. However, I don't know if the patch was committed.
Um, could you post it to the list?
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