tryReadMVar locks up the process with +RTS -N2 or greater
|Reported by:||simonmar||Owned by:||simonmar|
|Type of failure:||Runtime crash||Test Case:|
|Related Tickets:||Differential Rev(s):|
The new tryReadMVar is missing an unlockClosure call, which causes the whole process to hang when used with +RTS -N2 or greater. I'll push the fix shortly. We should treat this as a blocker for 7.8.3.