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iBook G3 repeatedly shuts down during use
I installed NetBSD 9.0 rc2 some days ago, and I'm having a problem with
random shutdowns during normal usage. This never happened on Linux or
OpenBSD. I have not used any NetBSD release lower than 9.0, so I'm not
sure if this is happening in other versions.
Randomly, even when idle, the computer will display the following warning:
*** FINAL System shutdown message from root@iBookG3 ***
System going down IMMEDIATELY
/etc/powerd/scripts//sensor_temperature: CRITICAL TEMPERATURE!
And the computer will turn itself off. A quick look at /var/log/messages
identifies the problem as l_temp being too hot:
Feb 7 20:46:03 iBookG3 root: /etc/powerd/scripts
//sensor_temperature: (dbcool0) critical
limit exceeded [l_temp]
Feb 7 20:46:14 iBookG3 syslogd: Exiting on signal 15
Feb 7 20:55:19 iBookG3 syslogd: restart
These are the temperatures when the computer is idle:
Current CritMax WarnMax WarnMin CritMin Unit
CPU Temp: 13.000 degC
l_temp: 59.250 60.000 0.000 degC
r1_temp: 55.250 80.000 0.000 degC
fan1: 22500 RPM
So l_temp seems to be 59.250 while doing absolutely nothing, the maximum
My computer is an iBook G3, and the CPU is a PowerPC 750FX. This never
happened to me, and it should be noted that on Linux the CPU temperature
was always listed as "20 °C (uncallibrated)", even under heavy
compilations, so I always thought that the CPU didn't even have a
Do you guys know what could be causing this?
Thank you very much!
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