running the latest v0.12 bitcoin-qt, got a coredump and a console message
2016-02-22 13:33:47 POTENTIAL DEADLOCK DETECTED 2016-02-22 13:33:47 Previous lock order was: 2016-02-22 13:33:47 pnode->cs_vSend net.cpp:1755 (TRY) 2016-02-22 13:33:47 (1) cs_main main.cpp:5347 (TRY) 2016-02-22 13:33:47 (2) pto->cs_inventory main.cpp:5447 2016-02-22 13:33:47 Current lock order is: 2016-02-22 13:33:47 (2) pnode->cs_vRecvMsg net.cpp:1736 (TRY) 2016-02-22 13:33:47 (1) cs_main main.cpp:1377 bitcoin-qt: sync.cpp:112: void potential_deadlock_detected(const std::pair<void, void>&, const LockStack&, const LockStack&): Assertion `onlyMaybeDeadlock' failed.
What's exactly is this deadlock? Is it worth building a debug build over? Does this have to be investigated?