. Thread 2 (LWP 5005): #0 0x006fe416 in ?? () No symbol table info available. Cannot access memory at address 0xb2067094 . Thread 1 (LWP 4992): #0 0x08822f11 in Avoid::VertInf::removeFromGraph(bool) () No symbol table info available. Cannot access memory at address 0xbfdedfac