[ILUG] kacpid and CPU usage

[Bryan O'Donoghue]

As it stands, kacpid is consuming roughly 96% of my CPU time as I type 
this email.

There is a noticable lag, when typing, thankfully the nice priority is 
-10 not -19, so my system is still quasi functional.

I posted to the ACPI mailing list, to no avail. I don't think the dmesg 
given would be of any real help in any case.

For clarity.. nothing seems to have oopsed... but, the kacpid is 
absolutely eating it's way through my CPU bandwidth... I've been 
noticing a lag on and off.. and was assuming it was just a lack of ram + 
too many things happening at once, on the workstation (Slackware current)

I've tried updating to 2.6.9-rc1 and 2.6.9-rc1-mm3, in the hopes of 
fixing the problem and playing with reiser4 on a spare software raid 
array in my workstation, however, irrespective of whether or not the 
ACPI issue is fixed ( a quick google shows at least one other guy with a 
Dell of some sort had this problem two months ago or so), fact is 
2.6.9-rc1* seems to have some sort of problem with piping between 
process and consequently things like man and ssh just don't work.. also, 
I was running mm3 for a while, before it started not letting me spawn 
any more processes, claiming I had too many open files..... so I haven't 
be able to confirm if upversioning helps this problem, since it takes 
about a day, for this problem to manifest itself on 2.6.8.1

Right now I'm running an vanilla 2.6.8.1, but, aside from rebuilding 
2.6.8.1, sans ACPI, I was wondering if anybody else out there in the 
ether had found and resolved this problem?

It doesn't happen in the 2.4.26 that gets shipped with Slackware 10.. 
and it probably doesn't happen the the 2.6.7 in testing in Slackware.. 
however.. it might and I already have six different zimages in /boot.

Any ideas?


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