From mboxrd@z Thu Jan 1 00:00:00 1970 From: Karol Kozimor Subject: Re: [ACPI] RE: [patch] 2.4.x ACPI updates Date: Mon, 8 Sep 2003 15:29:33 +0200 Sender: linux-kernel-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org Message-ID: <20030908132933.GA23269@hell.org.pl> References: <20030823223340.GA7129@hell.org.pl> <20030902143756.GH1358@openzaurus.ucw.cz> Mime-Version: 1.0 Content-Type: text/plain; charset=iso-8859-2 Return-path: Content-Disposition: inline In-Reply-To: <20030902143756.GH1358-u08AdweFZfgxtPtxi4kahqVXKuFTiq87@public.gmane.org> To: Pavel Machek Cc: Marcelo Tosatti , "Brown, Len" , Jeff Garzik , "Grover, Andrew" , "J.A. Magallon" , Linux Kernel Mailing List , Alan Cox , acpi-devel-pyega4qmqnRoyOMFzWx49A@public.gmane.org List-Id: linux-acpi@vger.kernel.org Thus wrote Pavel Machek: > > This is probably a BIOS / hardware bug, a rare occurence actually. > > The logs show: > > #v+ > > acpi_power-0363 [64] acpi_power_transition : Error transitioning device [CFAN] to D0 > > acpi_bus-0496 [63] acpi_bus_set_power : Error transitioning device [CFAN] to D0 > > acpi_thermal-0549 [62] acpi_thermal_active : Unable to turn cooling device [c12d2528] 'on' > > Unable to handle kernel paging request at virtual address 876c33c4 > > [...] > > #v- > > (sometimes there's D3 in place of D0, depending on the trip points / > > temperature readings), and then the oops follows. Unfortunately, I > > can't provide the ksymoops output, as the kernel which the oops was logged > > on has been gone long since. > > > > Anyway, this is by no means reproducible, occurs quasi-randomly (more often > You should be able to do echo ? > /proc/acpi/*/fan/state to stress this manually... Of course. It prints the messages, but doesn't oops. I'm waiting to reproduce it on 2.4.23-pre here right now. Best regards, -- Karol 'sziwan' Kozimor sziwan-DETuoxkZsSqrDJvtcaxF/A@public.gmane.org