Re: [gentoo-user] [OT overheat] How to cause shutdown on overheat
On Sunday 01 October 2006 17:31, Michael Gisbers wrote: Just have a look to your trip_point: [EMAIL PROTECTED] ~ $ cat /proc/acpi/thermal_zone/THRM/trip_points critical (S5): 95 C passive: 87 C: tc1=1 tc2=5 tsp=10 devices=0xdff72dc4 When reaching 95° my computer starts to shutdown fast. My trip_point reads: cat /proc/acpi/thermal_zone/THRM/trip_points critical (S5): 80 C passive: 78 C: tc1=4 tc2=3 tsp=60 devices=0x887fce00 active[0]: 78 C: devices=0x884f2200 The value for 'critical' has been entered into the BIOS, at which point the computer will perform a hard shutdown (equivalent to pulling the plug) On my old laptop (died recently) I had it set up to initiate a proper shutdown (shutdown -h now) when it would get near this value. How can I configure acpid to perform a proper shutdown when it reaches 78 C, which ACPI-event would I get? I'd rather not experiment for obvious reasons as this machine is used to store my emails and other important files. Thanks, Joost Roeleveld -- gentoo-user@gentoo.org mailing list
Re: [gentoo-user] [OT overheat] How to cause shutdown on overheat
Am Samstag 30 September 2006 14:16 schrieb [EMAIL PROTECTED]: Group, I recently built a ventilated stucture around my 4 desktops to try to quiet things down and get rid of the heat. I made no provision for forced shutdown in case of overheat, which is quite likely to happen if, for example the main ventilation fan went down for some reason. Well, that happened due to stupidity on my part with getting used to the new setup. I fired up a computer and neglected to turn the fan on. Then left it running overnight. Well, given the confined space and very little/no ventilation (of my homemade structure) the computer got hot... Sometime this morning I see syslog messages written to tty that say: Message from [EMAIL PROTECTED] at Sat Sep 30 04:41:32 2006 ... reader kernel: CPU0: Temperature above threshold Message from [EMAIL PROTECTED] at Sat Sep 30 04:41:32 2006 ... reader kernel: CPU0: Running in modulated clock mode [...] Some kind of attempt by kernel to cool things down. But will it actually shutdown if it gets dangerously hot? Further, how can I discover what temperatures were involved when this happened? Or can I set something to make a shutdown happen at a specific temperature? A nicer solution would be somekind of added stand alone temperature monitor in the enclosure that causes a controlled shutdown like one gets with `shutdown -h now'. Anyone here with some experience in this kind of thing that can steer me to some good information? Just have a look to your trip_point: [EMAIL PROTECTED] ~ $ cat /proc/acpi/thermal_zone/THRM/trip_points critical (S5): 95 C passive: 87 C: tc1=1 tc2=5 tsp=10 devices=0xdff72dc4 When reaching 95° my computer starts to shutdown fast. I found more Information on http://acpi.sourceforge.net/documentation/thermal.html Maybe it helps you too. -- Michael Gisbers http://www.lugor.de pgpL4hROooZBh.pgp Description: PGP signature
[gentoo-user] [OT overheat] How to cause shutdown on overheat
Group, I recently built a ventilated stucture around my 4 desktops to try to quiet things down and get rid of the heat. I made no provision for forced shutdown in case of overheat, which is quite likely to happen if, for example the main ventilation fan went down for some reason. Well, that happened due to stupidity on my part with getting used to the new setup. I fired up a computer and neglected to turn the fan on. Then left it running overnight. Well, given the confined space and very little/no ventilation (of my homemade structure) the computer got hot... Sometime this morning I see syslog messages written to tty that say: Message from [EMAIL PROTECTED] at Sat Sep 30 04:41:32 2006 ... reader kernel: CPU0: Temperature above threshold Message from [EMAIL PROTECTED] at Sat Sep 30 04:41:32 2006 ... reader kernel: CPU0: Running in modulated clock mode [...] Some kind of attempt by kernel to cool things down. But will it actually shutdown if it gets dangerously hot? Further, how can I discover what temperatures were involved when this happened? Or can I set something to make a shutdown happen at a specific temperature? A nicer solution would be somekind of added stand alone temperature monitor in the enclosure that causes a controlled shutdown like one gets with `shutdown -h now'. Anyone here with some experience in this kind of thing that can steer me to some good information? -- gentoo-user@gentoo.org mailing list
Re: [gentoo-user] [OT overheat] How to cause shutdown on overheat
On 9/30/06, [EMAIL PROTECTED] [EMAIL PROTECTED] wrote: Group, I recently built a ventilated stucture around my 4 desktops to try to quiet things down and get rid of the heat. I made no provision for forced shutdown in case of overheat, which is quite likely to happen if, for example the main ventilation fan went down for some reason. Well, that happened due to stupidity on my part with getting used to the new setup. I fired up a computer and neglected to turn the fan on. Then left it running overnight. Well, given the confined space and very little/no ventilation (of my homemade structure) the computer got hot... Sometime this morning I see syslog messages written to tty that say: Message from [EMAIL PROTECTED] at Sat Sep 30 04:41:32 2006 ... reader kernel: CPU0: Temperature above threshold Message from [EMAIL PROTECTED] at Sat Sep 30 04:41:32 2006 ... reader kernel: CPU0: Running in modulated clock mode [...] Some kind of attempt by kernel to cool things down. But will it actually shutdown if it gets dangerously hot? Further, how can I discover what temperatures were involved when this happened? Or can I set something to make a shutdown happen at a specific temperature? A nicer solution would be somekind of added stand alone temperature monitor in the enclosure that causes a controlled shutdown like one gets with `shutdown -h now'. Anyone here with some experience in this kind of thing that can steer me to some good information? If you have built your kernel with ACPI options for THERMAL or some kind of frequency changer, you can use a daemon like cpufreqd to monitor the temperature and take actions like reduce the clock and voltage to avoid damage to the processor. http://www.gentoo.org/doc/en/power-management-guide.xml When my computer reaches the limit (wich in my case is 73 degrees C) it automatically shutdown, I didn't have to configure anything, it is builtin with the thermal ACPI module. I'm talking about a Pentium IV Northwood here, and they tend to get really hot. It used to happen to my Athlon XP also... To monitor the temperature, you can read the /proc entries created by ACPI, for example /proc/acpi/thermal/TZ0/info. -- Daniel da Veiga Computer Operator - RS - Brazil -BEGIN GEEK CODE BLOCK- Version: 3.1 GCM/IT/P/O d-? s:- a? C++$ UBLA++ P+ L++ E--- W+++$ N o+ K- w O M- V- PS PE Y PGP- t+ 5 X+++ R+* tv b+ DI+++ D+ G+ e h+ r+ y++ --END GEEK CODE BLOCK-- -- gentoo-user@gentoo.org mailing list
Re: [gentoo-user] [OT overheat] How to cause shutdown on overheat
On 9/30/06, [EMAIL PROTECTED] [EMAIL PROTECTED] wrote: Message from [EMAIL PROTECTED] at Sat Sep 30 04:41:32 2006 ... reader kernel: CPU0: Temperature above threshold Message from [EMAIL PROTECTED] at Sat Sep 30 04:41:32 2006 ... reader kernel: CPU0: Running in modulated clock mode [...] Some kind of attempt by kernel to cool things down. But will it actually shutdown if it gets dangerously hot? Nope, not the kernel. Modern CPUs have built-in thermal throttling...if they get too hot, they reduce their clocks until things cool down. They generate an exception when this occurs, which the kernel sees and logs if you have the right ACPI options enabled. They will also simply shutdown if the temperature gets too warm. However, this would generally be bad, as no clean shutdown or even disk sync would occur. Further, how can I discover what temperatures were involved when this happened? Download the processor specs from the manufacturer's web sitethat should list the throttle and shutdown temperatures. Or can I set something to make a shutdown happen at a specific temperature? Install and run acpid, and you should get ACPI temperature events passed through to /etc/acpi/default.sh, which you can edit to handle in whatever way you see fit. -Richard -- gentoo-user@gentoo.org mailing list
