On Tuesday, 12 of August 2008, Pavel Machek wrote: > On Tue 2008-08-12 13:44:27, Milan Broz wrote: > > Pavel Machek wrote: > > > Hi! > > >>> On Tue, Aug 12, 2008 at 11:41:35AM +0200, Pavel Machek wrote: > > >>>>>> Aug 6 11:00:10 amd kernel: ACPI: Critical trip point > > >>>>>> Aug 6 11:00:10 amd kernel: Critical temperature reached (128 C), > > >>>>>> shutting down. > > >>>>>> Aug 6 11:00:10 amd shutdown[24414]: shutting down for system halt > > >>>>>> > > >>>>>> ...and machine went down at that point :-(. > > >>>>> I hope you can easily reproduce it? > > >>>>> > > >>>>> So it's new in 2.6.27rc1 and wasn't in 2.6.26? Can you please > > >>>> Yes, I'm very sure. It makes machine basically unusable. > > >>> Does this mean you can easily reproduce it? > > >>> Please do a bisect then. > > >>> > > >>>> Not that one :-(. Thinkpad does not even have fan device: it is > > >>>> controlled by hardware. > > >> Hi, > > >> I see exactly the same on my x60s, but during upgrade to 2.6.26.2. > > > > > > Are you sure? > > > > yes. maybe some userspace tool controlling frequency is involved, no idea yet. > > But it is 2.6.26 tree for sure. > > So it definitely is in 2.6.26.2, and it definitely is in 2.6.26? > > ...because I'm using 2.6.26, and see nothing.. > > > >> Now, the CPU cores remains on 1.67GHz and fan is unable to cool them properly > > >> under heavy load (even if I set "level disengaged" through thinkpad fan control, > > >> temperature sensor shows after a while 128 C (probably not real temp, > > >> I expect some critical flag => and it properly switch off the > > >> system...) > > > > > > How do you control fans? I could not get anything but -EINVAL from IBM > > > ACPI driver :-(. > > > > you need add fan_control=1 to thinkpad_acpi module > > > > http://www.thinkwiki.org/wiki/How_to_control_fan_speed > > http://www.thinkwiki.org/wiki/ACPI_fan_control_script > > Thanks for pointers! Pavel, can you check if the state of the fan(s) change while the thermal trip points are being passed? As I said in http://bugzilla.kernel.org/show_bug.cgi?id=11281, I suspect that this mechanism may be broken. Thanks, Rafael -- 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
