I have a patch up on gerrit that should fix the errors everyone have been experiencing. This seems to affect everyone differently (and some non at all) so I want to have as many people as possible tick the verify flag.
The kernel folk suspect there might be a memory corruption bug in the kernel so if this doesn't fix everyone's problem we might need this person's help tracking this issue.
It never actually reproduced for me after the initial fix so it's hard for me to do proper testing.
Thanks! and sorry for the inconvenience.