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i.max8mm TMU report 112C when the board is in -40C,which cause system reboot

Question asked by Wen Fu on Jan 19, 2020
Latest reply on Jan 20, 2020 by igorpadykov

TMU report 112C when the board is in -40C,which cause system reboot. 

 

 

cat /sys/class/thermal/thermal_zone0/temp periodically. 

...

0
0
0
0
112000
[ 9756.219789] System is too hot. GPU3D will work at 1/64 clock.
[ 9756.225583] hantro receive hot notification event: 1
[ 9756.230857] thermal thermal_zone0: critical temperature reached (112 C), shutting down

Message from syslogd@maaxboard at Apr 11 19:11:08 ...
kernel:[ 9756.230857] thermal thermal_zone0: critical temperature reached (112 C), shutting down
112000
[ 9756.499770] thermal thermal_zone0: critical temperature reached (112 C), shutting down

Message from syslogd@maaxboard at Apr 11 19:11:08 ...
kernel:[ 9756.499770] thermal thermal_zone0: critical temperature reached (112 C), shutting down
logout
[ 9756.763855] thermal thermal_zone0: critical temperature reached (112 C), shutting down
[ 9757.031798] thermal thermal_zone0: critical temperature reached (112 C), shutting down
[ 9757.295826] thermal thermal_zone0: critical temperature reached (112 C), shutting down
[ 9757.488292] systemd-shutdow: 55 output lines suppressed due to ratelimiting
[ 9757.560345] thermal thermal_zone0: critical temperature reached (112 C), shutting down
[ 9757.694533] systemd-shutdown[1]: Syncing filesystems and block devices.
[ 9757.801168] systemd-shutdown[1]: Sending SIGTERM to remaining processes...
[ 9757.817292] systemd-journald[1939]: Received SIGTERM from PID 1 (systemd-shutdow).
[ 9757.827773] thermal thermal_zone0: critical temperature reached (112 C), shutting down
[ 9757.868861] systemd-shutdown[1]: Sending SIGKILL to remaining processes...
[ 9757.884837] systemd-shutdown[1]: Unmounting file systems.
[ 9757.893417] [22553]: Remounting '/' read-only in with options 'data=ordered'.
[ 9757.920306] EXT4-fs (mmcblk0p2): re-mounted. Opts: data=ordered
[ 9757.938902] systemd-shutdown[1]: All filesystems unmounted.
[ 9757.944529] systemd-shutdown[1]: Deactivating swaps.
[ 9757.949750] systemd-shutdown[1]: All swaps deactivated.
[ 9757.955012] systemd-shutdown[1]: Detaching loop devices.
[ 9757.964286] systemd-shutdown[1]: All loop devices detached.
[ 9757.969956] systemd-shutdown[1]: Detaching DM devices.
[ 9757.998893] kvm: exiting hardware virtualization
[ 9758.019747] reboot: Power down

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