On Sunday 01 April 2007 20:57:57 Kyle Moffett wrote: > On Mar 31, 2007, at 02:36:08, Jeremy Fitzhardinge wrote: > > When I run 2.6.21-rc5 + Andi's x86 patches + paravirt_ops patches, > > I've been getting my machine shut down with critical thermal > > shutdown messages: > > > > Mar 30 23:19:03 localhost kernel: ACPI: Critical trip point > > Mar 30 23:19:03 localhost kernel: Critical temperature reached (128 > > C), shutting down. > > Mar 30 23:19:03 localhost kernel: Critical temperature reached (128 > > C), shutting down. > > Mar 30 23:19:03 localhost shutdown[19417]: shutting down for system > > halt > > > > and the machine does feel pretty hot. Interestingly, when the > > machine reboots, the fan spins up to a noticeably higher speed, so > > it seems that maybe something is getting fan speed control wrong. > > Well, 128C is more than hot enough to boil water and well above the > thermal tolerances of most CPUs, so I would imagine that were your > CPU actually that hot it wouldn't be capable of printing the > "Critical temperature reached" messages, let alone properly rebooting. IIRC a MSI Megabook S270 (I formerly owned) BIOS notifies this "Critical temperature reached (128C)" when the battery run empty when the OS did no action due to battery low indications. I guess the BIOS people thought this is a good last resort to let the OS really shutdown before the box just turns off. Yours, -- René Rebe - ExactCODE GmbH - Europe, Germany, Berlin http://exactcode.de | http://t2-project.org | http://rene.rebe.name +49 (0)30 / 255 897 45 - To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
