problems with 7.0 kernel page faults

Submitted 2 PRs for 7.0 we only been using it for a few hours and have
had repeated kernel page faults crashing the system so was
dissapointed considering this is said to be nearly ready for release.

PRs are

116719 and 116720 in misc.

First one was caused by simply running reboot, I recompiled world with
-O which seems to prevent this occuring.

Second one is when running 'killall watch' with at least 1 watch
process running this causes the kernel to page fault and this happens
even when compiled with -O.

If anyone is interested can post logs dmesg etc. and have a kernel
dump for the 2nd problem.

Chris