t/02-rakudo/15-gh_1202.t SEGV version

gistfile1.txt

dogbert@dogbert-VirtualBox:~/repos/rakudo$ gdb install/bin/moar core.moar.1000.76f4e7648b41411e930b2edf5cc63bb4.2709599.1633277864000000000000
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Reading symbols from install/bin/moar...
[New LWP 2709605]
[New LWP 2709602]
[New LWP 2709601]
[New LWP 2709606]
[New LWP 2709599]
[New LWP 2709613]
[New LWP 2709600]
[New LWP 2709615]
[New LWP 2709604]
[New LWP 2709610]
[New LWP 2709607]
[New LWP 2709603]
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
Core was generated by `/home/dogbert/repos/rakudo/nqp/MoarVM/../../install/bin/moar --execname=/home/d'.
Program terminated with signal SIGSEGV, Segmentation fault.
#0  0x00007f957c2e8d40 in MVM_disp_program_run (tc=0x7f95640fa270, dp=0x55bdd74515c0, record=0x7f9560061be8, spesh_cid=0, bytecode_offset=200, dp_index=3) at src/disp/program.c:2933
2933	                if (STABLE(val.o) != (MVMSTable *)dp->gc_constants[op.arg_guard.checkee])
[Current thread is 1 (Thread 0x7f9571ffb700 (LWP 2709605))]
(gdb) bt
#0  0x00007f957c2e8d40 in MVM_disp_program_run (tc=0x7f95640fa270, dp=0x55bdd74515c0, record=0x7f9560061be8, spesh_cid=0, bytecode_offset=200, dp_index=3) at src/disp/program.c:2933
#1  0x00007f957c2dcc0f in dispatch_polymorphic (tc=0x7f95640fa270, entry_ptr=0x55bdd975f388, seen=0x55bdda340a28, id=0x55bdd91560f0, callsite=0x55bdd6fd67c0, arg_indices=0x7f9578bb5286, 
    source=0x7f9560085940, sf=0x55bdd9152d90, bytecode_offset=200) at src/disp/inline_cache.c:178
#2  0x00007f957c20bd3c in MVM_interp_run (tc=0x7f95640fa270, initial_invoke=0x7f957c22e7d5 <thread_initial_invoke>, invoke_data=0x7f95640d4d70, outer_runloop=0x0) at src/core/interp.c:5442
#3  0x00007f957c22e96e in start_thread (data=0x7f95640d4d70) at src/core/threads.c:101
#4  0x00007f957bc69609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#5  0x00007f957bef4293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
(gdb) l
2928	                num_resume_states++;
2929	                NEXT;
2930	            /* Argument guard ops. */
2931	            OP(MVMDispOpcodeGuardArgType): {
2932	                GET_ARG;
2933	                if (STABLE(val.o) != (MVMSTable *)dp->gc_constants[op.arg_guard.checkee])
2934	                    goto rejection;
2935	                NEXT;
2936	            }
2937	            OP(MVMDispOpcodeGuardArgTypeConc): {
(gdb) p val
$1 = {o = 0x0, s = 0x0, i8 = 0 '\000', u8 = 0 '\000', i16 = 0, u16 = 0, i32 = 0, u32 = 0, i64 = 0, u64 = 0, n32 = 0, n64 = 0}
(gdb) p *dp
$2 = {constants = 0x55bdd7451830, gc_constants = 0x55bdd7451230, num_gc_constants = 2, num_temporaries = 2, first_args_temporary = 1, num_ops = 5, ops = 0x55bdd7451530, resumptions = 0x0, 
  num_resumptions = 0}
(gdb) p op
$3 = {code = MVMDispOpcodeGuardArgType, {resume = {disp = 0x7be60000}, resume_init_callsite = {callsite_idx = 2078670848}, arg_guard = {arg_idx = 0, checkee = 0}, temp_guard = {temp = 2078670848, 
      checkee = 0}, load = {temp = 2078670848, idx = 0}, bind_control_resumption = {failure_flag = 2078670848, success_flag = 0}, use_arg_tail = {skip_args = 2078670848, callsite_idx = 0}, 
    copy_arg_tail = {tail_args = 2078670848, callsite_idx = 0}, res_value = {temp = 2078670848}, res_code = {temp_invokee = 2078670848}}}
(gdb) p *dp->constants
$4 = {cs = 0x7f957c812a20 <obj_callsite>, hll = 0x7f957c812a20 <obj_callsite>, i64 = 140280015694368, n64 = 6.9307536552658127e-310}