Segfault happened at: 0x7f6580083d6d:	callq  *0x28(%rax)
PC (0x7f6580083d6d) ok
source "*0x28(%rax)" ok
destination "(%rsp)" (0x7fff834b0ba0) ok
SP (0x7fff834b0ba0) ok
Reason could not be automatically determined.