Comment # 20 on bug 1202386 from Takashi Iwai

FWIW, I'm building a test kernel with a debug patch that does NULL checks and
some debug prints around the power supply driver in OBS home:tiwai:bsc1202386.
If it were a simple NULL ops, the crash could be avoided (and show the
problematic device name).

Unfortunately, the package build gets stuck for hours, maybe because of the
reduced build power in our build firm.  In anyway, once after the build
finishes, it'd be great if anyone can test it (in the similar condition you
triggered the bug in the past) and give the dmesg output.
The test kernel will appear at:
  http://download.opensuse.org/repositories/home:/tiwai:/bsc1202386/standard/

Note that it's an unofficial build, hence disable Secure Boot beforehand.