From @moritz

Everything that produces an exception (doesn't matter if compile time or
run time) makes the REPL segfault

For example​:

foo
Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread 0x7f9c06b7f6f0 (LWP 499)]
0x00007f9c06607b62 in Parrot_gc_mark_PMC_alive_fun (interp=0x2c93010,
  obj=0x3122720) at src/gc/api.c​:181
181 VTABLE_mark(interp, obj);

backtrace​:

#​0 0x00007f9c06607b62 in Parrot_gc_mark_PMC_alive_fun (interp=0x2c93010,
  obj=0x3122720) at src/gc/api.c​:181
#​1 0x00007f9c066524f8 in Parrot_Exception_mark (interp=0x2c93010,
  _self=<value optimized out>) at ./src/pmc/exception.pmc​:160
#​2 0x00007f9c06607b68 in Parrot_gc_mark_PMC_alive_fun (interp=0x2c93010,
  obj=0x31227e0) at src/gc/api.c​:181
#​3 0x00007f9c0668b4d7 in Parrot_CallContext_mark (interp=0x2c93010,
  _self=0x3122040) at ./src/pmc/callcontext.pmc​:349
#​4 0x00007f9c06607b68 in Parrot_gc_mark_PMC_alive_fun (interp=0x2c93010,
  obj=0x3122040) at src/gc/api.c​:181
#​5 0x00007f9c06607b68 in Parrot_gc_mark_PMC_alive_fun (interp=0x2c93010,
  obj=0x3121b60) at src/gc/api.c​:181
#​6 0x00007f9c0668b4d7 in Parrot_CallContext_mark (interp=0x2c93010,
  _self=0x3120f40) at ./src/pmc/callcontext.pmc​:349
#​7 0x00007f9c06607b68 in Parrot_gc_mark_PMC_alive_fun (interp=0x2c93010,
  obj=0x3120f40) at src/gc/api.c​:181
#​8 0x00007f9c06607b68 in Parrot_gc_mark_PMC_alive_fun (interp=0x2c93010,
  obj=0x3120ac0) at src/gc/api.c​:181
#​9 0x00007f9c0668b4d7 in Parrot_CallContext_mark (interp=0x2c93010,
  _self=0x311ff40) at ./src/pmc/callcontext.pmc​:349
#​10 0x00007f9c06607b68 in Parrot_gc_mark_PMC_alive_fun (interp=0x2c93010,
  obj=0x311ff40) at src/gc/api.c​:181
#​11 0x00007f9c06607b68 in Parrot_gc_mark_PMC_alive_fun (interp=0x2c93010,

and so on, recursively

Cheers,
Mooritz

@moritz - Status changed from 'new' to 'resolved'