I've been running R7 for a few days (since it came out) and have got several random BSOD while the tablet was in idle (sometimes with wifi on, sometimes in airplane mode).
Running factory JB 4.2.2 with SuperSU 1.09 and as of today, SuperSu 1.10 with TWRP 220.127.116.11 recovery.
BSODs happened with both versions of SuperSU as well.
Franco settings are: ondemand governor, min CPU frequency: 200, max 17000, IO Scheduler: deadline, westwood TCP congestion avoidance
attached is my kmsg
Cheers and keep up the great work!
Galaxy Nexus SlimKat 4.4
Nexus 10 JB 4.3
Nexus One Evervolv JB 4.3