On Wed, 22 Apr 2009, Marcin Gozdalik wrote: > Hi > > I am seeing the following in logs: > > Apr 22 16:00:07 myth kernel: [ 39.354031] ACPI Exception > (thermal-0479): AE_ERROR, ACPI thermal trip point state changed > Apr 22 16:00:07 myth kernel: [ 39.354040] Please send acpidump to > linux-acpi@xxxxxxxxxxxxxxx > Apr 22 16:00:07 myth kernel: [ 39.354045] [20080926] > > I am using Ubuntu 9.04: > > root@myth:/home/gozdal# uname -a > Linux myth 2.6.28-11-generic #42-Ubuntu SMP Fri Apr 17 01:58:03 UTC > 2009 x86_64 GNU/Linux > > Motherboard is Abit AN-M2HD(MCP68) flashed with the latest BIOS. > > The machine powers down sometimes because of an ACPI trip point: > > Apr 22 17:27:19 myth kernel: [ 5272.004934] ACPI: Critical trip point > Apr 22 17:27:19 myth kernel: [ 5272.004952] Critical temperature > reached (121 C), shutting down. > Apr 22 17:27:19 myth kernel: [ 5272.004973] ACPI: Unable to turn > cooling device [ffff88006f841800] 'on' > Apr 22 17:27:26 myth kernel: [ 5278.204238] Critical temperature > reached (34 C), shutting down. > > although I believe this is an error in measurement, as the temperature > probably wouldn't cool in 7 seconds from 121 to 34 Celsius. did this happen with earlier kernels, or did it start in 2.6.28? please try 2.6.29. please try it with CONFIG_HWMON=n If it still fails, please file a bugzilla http://bugzilla.kernel.org/enter_bug.cgi?product=ACPI and attach the acpidump there. thanks, Len Brown, Intel Open Source Technology Center
