Comment # 44 on bug 917411 from macias -

Another freeze. I rebooted computer on previous Saturday (2015-03-14).

This time it starts looking interesting:
* this freeze was during music playback -- the music didn't stop, it was
replayed in small loop 
* I see a pattern of uptime -- around 4 days

Is there any saturation of cache or something related to LVM? Encryption?
Second -- those freezes are not freezes apparently, more like a CPU dead-loop,
and only tasks with high priority (like multimedia) are not stopped. Of course
this is only my user-naive theory.

Anyway, does it ring any bell?