From: Juliusz Chroboczek <jch-klhGwnj84BUD5ynB6aAmlA@public.gmane.org>
To: David Douard <douard-m7abxLq4WJJQFI55V6+gNQ@public.gmane.org>
Cc: acpi-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org
Subject: Re: kacpid and my daemon
Date: 23 Jul 2002 18:34:43 +0200 [thread overview]
Message-ID: <87bs8y768s.fsf@trurl.cs.unibo.it> (raw)
In-Reply-To: <200207221802.52785.douard-m7abxLq4WJJQFI55V6+gNQ@public.gmane.org>
DD> But, I have written a little user space deamon (fansd) which periodically
DD> check themperature, and decide wether or not turn on/off fan. Because that
DD> feature does not work out of my (very patched DSDT) ACPI system.
That's weird -- it would appear that ACPI does properly export thermal
zones and fans to userspace, but OSPM (the kernel-side
power-management code) doesn't manage them? I'd be curious to know
how that can happen.
DD> The strange thing is that every time my deamon decide to change
DD> the state of the fans, I have a zombi process which ps trace is :
DD> note that 4609 is the PID of my fan daemon. I cannot make those process be
DD> collected and eliminated but my killing my deamon...
I've noticed this too, and I believe it's a bug in either ACPI's or
the kernel's code for dealing with /proc; I haven't found the time to
debug it, though.
Could you check (with strace) whether all the ``close'' system calls
in your code are successful?
Juliusz
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next parent reply other threads:[~2002-07-23 16:34 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <200204051427.g35ERYM20814@foobar.pps.jussieu.fr>
[not found] ` <200207221802.52785.douard@pl.ecp.fr>
[not found] ` <200207221802.52785.douard-m7abxLq4WJJQFI55V6+gNQ@public.gmane.org>
2002-07-23 16:34 ` Juliusz Chroboczek [this message]
[not found] ` <87bs8y768s.fsf-ijrYHC+MxHL85LLnhfSrOV6hYfS7NtTn@public.gmane.org>
2002-07-23 23:00 ` Re: kacpid and my daemon David Douard
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