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my Ubuntu 14 desktop with server was spontaneously restart. It was happened 12. jan 2017 12:14 (checked from console by "last reboot"). It seems to be more power consumption by kern.log. Which settings have I set to prevent spontaneously restart PC? Thanks

kern.log

EDIT: Added "cat /proc/cpuinfo" output to file cpuinfo

cpuinfo

EDIT2: Added output from "last reboot"

reboot system boot 3.13.0-107-gener Thu Jan 12 12:14 - 16:28 (04:13)
reboot system boot 3.13.0-106-gener Wed Jan 4 16:48 - 16:28 (7+23:39)

wtmp begins Wed Jan 4 16:48:24 2017

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The log doesn't show any indications on what caused the crash at 12:14.

Stuff like this happens, from time to time (I'd say my box crashes about once every 6 months). Make sure you're updating the system (especially the kernel), try performing a memcheck (checking for bad ram).

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  • Have a look at superuser.com/questions/129125/…
    – Ralf Hildebrandt
    Commented Jan 12, 2017 at 15:20
  • Thanks for info, it's might be a update of kernel? Because I paste to question a output from console "last reboot", where is different generation of kernel probably. Can I set this to confirm restart before update kernel?
    – Juraj Balcar
    Commented Jan 12, 2017 at 15:36
  • Well, if the machine crashes (and restarts!) then it will automatically start with the lastes, greatest kernel.
    – Ralf Hildebrandt
    Commented Jan 13, 2017 at 9:35

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