[smp1]

Do you have the corresponding kodi.log?

http://sprunge.us/GaKT

Does a recording containing poor signal stream also crash in the same way?

I never tried to record when the signal was poor, so I'll have to get back to you with that.

Do any settings changes avoid the problem? E.g.
Disable atempo resampling (set threshold to 100)
Switch between omxplayer and mmal?
Switch GPU resampling to medium.

I always use mmal, the atempo threshold was already set to 100, resampling set to "Low".
Those crashes are too rare for me to test with different settings. I will have to mess around with the signal myself I guess.