Last modified: 2014-09-25 16:43:10 UTC
While trying to create an account (on enwiki in this instance) with HHVM enabled, Varnish returns 503 errors every time. For clarification; No HHVM = Success. IP returned was 10.64.0.105 which is cp1068 (saves time looking I guess).
I can no longer reproduce this bug. I think it was fixed in the move to the latest HHVM package, but I'm not sure what specifically fixed it.