Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread 0x7fff79b40700 (LWP 29787)]
isGridObjectDataLoaded (this=0x7ffe89d14000, p=...) at /root/mangos/src/game/Map.h:283
283             bool isGridObjectDataLoaded(uint32 x, uint32 y) const { return getNGrid(x,y)->isGridObjectDataLoaded(); }
#0  isGridObjectDataLoaded (this=0x7ffe89d14000, p=...) at /root/mangos/src/game/Map.h:283
#1  Map::loaded (this=0x7ffe89d14000, p=...) at /root/mangos/src/game/Map.cpp:433
#2  0x00000000006bcc94 in Map::MessageBroadcast (this=0x7ffe89d14000, obj=0x7fff57a32080, msg=0x7fff79b3f700) at /root/mangos/src/game/Map.cpp:379
#3  0x000000000080e506 in Unit::SendThreatRemove (this=0x7fff57a32080, pHostileReference=0x7ffe39925e00) at /root/mangos/src/game/Unit.cpp:11824
#4  0x00000000008b3791 in ThreatManager::processThreatEvent (this=0x7fff57a33af8, threatRefStatusChangeEvent=<value optimized out>) at /root/mangos/src/game/ThreatManager.cpp:539
#5  0x00000000008b3a2e in HostileReference::setOnlineOfflineState (this=0x7ffe39925e00, pIsOnline=<value optimized out>) at /root/mangos/src/game/ThreatManager.cpp:172
#6  0x00000000008b396e in invalidate (this=0x7ffe89d14000) at /root/mangos/src/framework/Utilities/LinkedReference/Reference.h:83