#0  0x00007f66e41def79 in __GI_raise (sig=sig@entry=6) at ../nptl/sysdeps/unix/sysv/linux/raise.c:56
  [Error: ../nptl/sysdeps/unix/sysv/linux/raise.c was not found in source tree]
#1  0x00007f66e41e2388 in __GI_abort () at abort.c:89
  [Error: abort.c was not found in source tree]
#2  0x00000000004b74b9 in mono_handle_native_sigsegv (signal=signal@entry=11, ctx=ctx@entry=0x7f66e50aec40) at mini-exceptions.c:2335
  [Error: mini-exceptions.c was not found in source tree]
#3  0x000000000050f13b in mono_arch_handle_altstack_exception (sigctx=sigctx@entry=0x7f66e50aec40, fault_addr=<optimized out>, stack_ovf=stack_ovf@entry=0) at exceptions-amd64.c:908
  [Error: exceptions-amd64.c was not found in source tree]
#4  0x0000000000423d22 in mono_sigsegv_signal_handler (_dummy=11, info=0x7f66e50aed70, context=0x7f66e50aec40) at mini.c:6769
  [Error: mini.c was not found in source tree]
#5  <signal handler called>
#6  0x00007f66e0626acd in g_type_name (type=<optimized out>) at /build/buildd/glib2.0-2.40.0/./gobject/gtype.c:3305
  [Error: /build/buildd/glib2.0-2.40.0/./gobject/gtype.c was not found in source tree]
#7  0x000000004168b7ab in ?? ()
#8  0x00007f66dc002540 in ?? ()
#9  0x00007f66e316f9e8 in ?? ()
#10 0x0000000041420b30 in ?? ()
#11 0x00007f66e1924bb0 in ?? ()
#12 0x00007f66e19249f0 in ?? ()
#13 0x0000000000b34340 in ?? ()
#14 0x0000000000000000 in ?? ()