[Nix-dev] Unwanted, unannounced reboot

[Matthias Beyer]

Hi,

this is the third time I got a unwanted, unannounced reboot of my 
Thinkpad X220. The device just went off and rebooted.

My logs:

    Aug 30 13:16:23 yuu audit[27536]: SECCOMP auid=1000 uid=1000 gid=100 ses=1 pid=27536 comm="chromium" exe="/nix/store/28b56yiqshs8kvnha23vvwp0m4rlyyis-chromium-52.0.2743.116/libexec/chromium/chromium" sig=0 arch=c000003e syscal
    Aug 30 13:16:23 yuu audit[27537]: SECCOMP auid=1000 uid=1000 gid=100 ses=1 pid=27537 comm="chromium" exe="/nix/store/28b56yiqshs8kvnha23vvwp0m4rlyyis-chromium-52.0.2743.116/libexec/chromium/chromium" sig=0 arch=c000003e syscal
    Aug 30 13:16:23 yuu audit[27539]: SECCOMP auid=1000 uid=1000 gid=100 ses=1 pid=27539 comm="chromium" exe="/nix/store/28b56yiqshs8kvnha23vvwp0m4rlyyis-chromium-52.0.2743.116/libexec/chromium/chromium" sig=0 arch=c000003e syscal
    Aug 30 13:16:23 yuu audit[27538]: SECCOMP auid=1000 uid=1000 gid=100 ses=1 pid=27538 comm="chromium" exe="/nix/store/28b56yiqshs8kvnha23vvwp0m4rlyyis-chromium-52.0.2743.116/libexec/chromium/chromium" sig=0 arch=c000003e syscal
    Aug 30 13:16:23 yuu kernel: audit: type=1326 audit(1472555783.141:55627): auid=1000 uid=1000 gid=100 ses=1 pid=27539 comm="chromium" exe="/nix/store/28b56yiqshs8kvnha23vvwp0m4rlyyis-chromium-52.0.2743.116/libexec/chromium/chro
    Aug 30 13:16:23 yuu kernel: audit: type=1326 audit(1472555783.141:55628): auid=1000 uid=1000 gid=100 ses=1 pid=27538 comm="chromium" exe="/nix/store/28b56yiqshs8kvnha23vvwp0m4rlyyis-chromium-52.0.2743.116/libexec/chromium/chro
    -- Reboot --
    Aug 30 14:17:20 yuu systemd-journald[570]: Runtime journal (/run/log/journal/) is 8.0M, max 398.4M, 390.4M free.
    Aug 30 14:17:21 yuu systemd-journald[570]: System journal (/var/log/journal/) is 1.9G, max 4.0G, 2.0G free.
    Aug 30 14:17:21 yuu systemd-journald[570]: Time spent on flushing to /var is 1.345ms for 2 entries.
    Aug 30 14:17:21 yuu kernel: Linux version 4.7.0 (nixbld at localhost) (gcc version 5.4.0 (GCC) ) #1-NixOS SMP Sun Jul 24 19:23:50 UTC 2016

So, as you can see, there is no shutdown process (stopping processes,
closing journal, etc).

What is this? How does this happen?

-- 
Mit freundlichen Grüßen,
Kind regards,
Matthias Beyer

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