K 10
svn:author
V 3
imp
K 8
svn:date
V 27
2020-10-06T23:33:56.340711Z
K 7
svn:log
V 170
cam: Assert we have a reference when freeing sim

Before we decrement refcount to sleep on the sim, assert that the
refcount >= 1. If it were 0 here, we'd never wake up.

END