From mboxrd@z Thu Jan 1 00:00:00 1970 From: Kristoffer Sjoberg Subject: Re: HP/Compaq NC6120 ACPI problems Date: Thu, 17 Mar 2005 22:13:05 +0100 Message-ID: <1111093985.4814.3.camel@localhost.localdomain> References: <20050317200052.686d683f.andrej.prsa@guest.arnes.si> <1111088904.11380.36.camel@eeyore> <20050317215635.1c788c09.andrej.prsa@guest.arnes.si> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=sha1; protocol="application/x-pkcs7-signature"; boundary="=-V+g09+HBuY5aISLeAWEC" In-Reply-To: <20050317215635.1c788c09.andrej.prsa-zs/Xt9NzJtxxh+DGd0HQrg@public.gmane.org> Sender: acpi-devel-admin-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org Errors-To: acpi-devel-admin-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , List-Archive: To: Andrej Prsa Cc: Bjorn Helgaas , ACPI Support List-Id: linux-acpi@vger.kernel.org --=-V+g09+HBuY5aISLeAWEC Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: quoted-printable On tor, 2005-03-17 at 21:56 +0100, Andrej Prsa wrote: > Hi, >=20 > > > The symptoms are as follows: computer starts fine, but within 20-30 > > > seconds it gradually slows down to the point where it can no longer > > > be used - it takes 5 minutes to start the terminal. The fan doesn't > > > work, so the machine overheats. Using 'top' shows that 55% of CPU > > > power is consumed by kacpid. > >=20 > > Take a look at /proc/interrupts a couple times, and see if there's > > a device that's spewing interrupts. >=20 > Observational update: it does *NOT* gradually slow down, it slows down > *instantly* after 2-3 minutes of running; the time of kacpid blowup is > somewhat arbitrary, it sometimes happens even before the boot-up is > complete. If I was to make another wild guess, it might be connected > with the fan - when the computer is cool, the blowup occurs later, if it > is warm, it occurs sooner. Is it possible that the call to turn the fan > on is triggering this kacpid blowup? How does one go about to test this? >=20 > For the first time I was now running 'top' from the moment a computer > came up to the moment kacpid boosted CPU consumption. Another erratum: > it is not 55% of CPU power for kacpid, it is 98%-99% of CPU power > reported in 'top'. Hi, I have a very similar problem on my NC6000, but only after resume from S4 (swsusp2 2.1.8.2). It simply won't turn on the fan, and after a while running 'yes' in a terminal, everything comes to a halt until I abort the scrolling. Running 2.6.11.2 - I think that 2.6.11-rc1 worked fine though (although it had a few other problems). 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