Segfault happened at: 0x7f0ec939fbd3 <_ZN9QHashData14detach_helper2EPFvPNS_4NodeEPvEPFvS1_Eii+227>: mov (%rax,%rdx,8),%rbx PC (0x7f0ec939fbd3) ok source "(%rax,%rdx,8)" (0x00000041) not located in a known VMA region (needed readable region)! destination "%rbx" ok