From mboxrd@z Thu Jan 1 00:00:00 1970 From: Karol Kozimor Subject: Re: [ACPI] RE: [patch] 2.4.x ACPI updates Date: Sun, 24 Aug 2003 00:33:40 +0200 Sender: linux-kernel-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org Message-ID: <20030823223340.GA7129@hell.org.pl> References: Mime-Version: 1.0 Content-Type: text/plain; charset=iso-8859-2 Return-path: Content-Disposition: inline In-Reply-To: To: Marcelo Tosatti Cc: "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 Marcelo Tosatti: > ACPI kernel crash with 2.4.22-pre7 on ASUS L3800C > http://marc.theaimsgroup.com/?l=linux-kernel&m=106146576326309&w=2 Hi, 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 when the machine is cold, possibly due to the fact that actual state transitions take place then), and causes various effects from keventd / ACPI subsystem locking to system hangs. Hope that helps, best regards, -- Karol 'sziwan' Kozimor sziwan-DETuoxkZsSqrDJvtcaxF/A@public.gmane.org