Test failure with MVM_GC_DEBUG=1

gistfile1.txt

Starting program: /home/dogbert/repos/rakudo/install/bin/moar --execname=./perl6-gdb-m --libpath=. --libpath=blib --libpath=/home/dogbert/repos/rakudo/install/share/nqp/lib --libpath=/home/dogbert/repos/rakudo/install/share/nqp/lib --libpath=/home/dogbert/repos/rakudo/install/share/nqp/lib /home/dogbert/repos/rakudo/perl6.moarvm --nqp-lib=blib t/spec/S02-names/pseudo.rakudo.moar
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/i386-linux-gnu/libthread_db.so.1".
[New Thread 0xb730db40 (LWP 10731)]
1..155
ok 1 - # SKIP the binding in here is NYI RT  \#124914
ok 2 - # SKIP the binding in here is NYI RT  \#124914
ok 3 - # SKIP the binding in here is NYI RT  \#124914
ok 4 - # SKIP the binding in here is NYI RT  \#124914
...
ok 142 - $UNIT:: finds eval heads
ok 143 - ::("UNIT") finds eval heads
ok 144 - CALLER::UNIT works
ok 145 - CALLER::UNIT works (indirect)
ok 146 - SETTING:: works
ok 147 - ::("SETTING") works
ok 148 - SETTING finds eval context
ok 149 - ::("SETTING") finds eval context

Breakpoint 1, MVM_panic (exitCode=1, messageFormat=0xb7c1da2c "Collectable %p in fromspace accessed") at src/core/exceptions.c:823
823	    fprintf(stderr, "MoarVM panic: ");
(gdb) bt
#0  MVM_panic (exitCode=1, messageFormat=0xb7c1da2c "Collectable %p in fromspace accessed") at src/core/exceptions.c:823
#1  0xb7af9652 in bind_key (tc=0x804c628, st=0x80a9350, root=0xb7422d08, data=0xb7422d18, key_obj=0x8dc55a8, value=..., kind=8) at src/6model/reprs/MVMHash.c:104
#2  0xb7af9a10 in MVMHash_bind_key (tc=0x804c628, st=0x80a9350, root=0xb7422d08, data=0xb7422d18, key_obj=0x8dc55a8, value=..., kind=8) at src/6model/reprs/MVMHash.c:113
#3  0xb7aecbbc in MVM_repr_bind_key_o (tc=0x804c628, obj=0xb7422d08, key=0x8dc55a8, val=0xb387f164) at src/6model/reprconv.c:553
#4  0xb7b8311f in MVM_spesh_frame_walker_get_lexicals_hash (tc=0x804c628, fw=0xbfffdc04) at src/spesh/frame_walker.c:327
#5  0xb7b11c0e in MVM_context_lexicals_as_hash (tc=0x804c628, ctx=0xb7422cec) at src/6model/reprs/MVMContext.c:354
#6  0xb7b1057f in MVM_iter (tc=0x804c628, target=0xb7422cec) at src/6model/reprs/MVMIter.c:204
#7  0xb7a72eb7 in MVM_interp_run (tc=0x804c628, initial_invoke=0xb7be0470 <toplevel_initial_invoke>, invoke_data=0x80c7168) at src/core/interp.c:2743
#8  0xb7be05cf in MVM_vm_run_file (instance=0x804c008, filename=0xbffff2d6 "/home/dogbert/repos/rakudo/perl6.moarvm") at src/moar.c:412
#9  0x08049240 in main (argc=10, argv=0xbfffefe4) at src/main.c:299
(gdb) info threads
  Id   Target Id         Frame 
  2    Thread 0xb730db40 (LWP 10731) "moar" 0xb7b5a18c in MVM_spesh_alloc (tc=0x80c5ee8, g=0xb4e45028, bytes=8) at src/spesh/graph.c:19
* 1    Thread 0xb7772940 (LWP 10730) "moar" MVM_panic (exitCode=1, messageFormat=0xb7c1da2c "Collectable %p in fromspace accessed") at src/core/exceptions.c:823
(gdb) f 1
#1  0xb7af9652 in bind_key (tc=0x804c628, st=0x80a9350, root=0xb7422d08, data=0xb7422d18, key_obj=0x8dc55a8, value=..., kind=8) at src/6model/reprs/MVMHash.c:104
104	        MVM_ASSIGN_REF(tc, &(root->header), entry->value, value.o);
(gdb) p MVM_dump_backtrace(tc)
   at gen/moar/stage2/NQPHLL.nqp:1166  (/home/dogbert/repos/rakudo/install/share/nqp/lib/NQPHLL.moarvm:SET_BLOCK_OUTER_CTX)
 from gen/moar/Perl6-Actions.nqp:1663  (blib/Perl6/Actions.moarvm:unitstart)
 from <unknown>:1  (/home/dogbert/repos/rakudo/install/share/nqp/lib/QRegex.moarvm:!cursor_pass)
 from <unknown>:1  (blib/Perl6/Grammar.moarvm:unitstart)
 from src/Perl6/World.nqp:531  (blib/Perl6/World.moarvm:loading_and_symbol_setup)
 from gen/moar/Perl6-Grammar.nqp:1283  (blib/Perl6/Grammar.moarvm:comp_unit)
 from gen/moar/Perl6-Grammar.nqp:553  (blib/Perl6/Grammar.moarvm:TOP)
 from gen/moar/stage2/QRegex.nqp:2303  (/home/dogbert/repos/rakudo/install/share/nqp/lib/QRegex.moarvm:parse)
 from gen/moar/stage2/NQPHLL.nqp:1912  (/home/dogbert/repos/rakudo/install/share/nqp/lib/NQPHLL.moarvm:parse)
 from gen/moar/stage2/NQPHLL.nqp:1828  (/home/dogbert/repos/rakudo/install/share/nqp/lib/NQPHLL.moarvm:execute_stage)
 from gen/moar/stage2/NQPHLL.nqp:1861  (/home/dogbert/repos/rakudo/install/share/nqp/lib/NQPHLL.moarvm:run)
 from gen/moar/stage2/NQPHLL.nqp:1864  (/home/dogbert/repos/rakudo/install/share/nqp/lib/NQPHLL.moarvm:)
 from gen/moar/stage2/NQPHLL.nqp:1850  (/home/dogbert/repos/rakudo/install/share/nqp/lib/NQPHLL.moarvm:compile)
 from SETTING::src/core/ForeignCode.pm6:55  (./CORE.setting.moarvm:EVAL)
 from t/spec/S02-names/pseudo.rakudo.moar:430  (<ephemeral file>:)
 from t/spec/S02-names/pseudo.rakudo.moar:422  (<ephemeral file>:<unit>)
 from t/spec/S02-names/pseudo.rakudo.moar:1  (<ephemeral file>:<unit-outer>)
 from gen/moar/stage2/NQPHLL.nqp:1566  (/home/dogbert/repos/rakudo/install/share/nqp/lib/NQPHLL.moarvm:eval)
 from gen/moar/stage2/NQPHLL.nqp:1805  (/home/dogbert/repos/rakudo/install/share/nqp/lib/NQPHLL.moarvm:evalfiles)
 from gen/moar/stage2/NQPHLL.nqp:1695  (/home/dogbert/repos/rakudo/install/share/nqp/lib/NQPHLL.moarvm:command_eval)
 from src/Perl6/Compiler.nqp:42  (blib/Perl6/Compiler.moarvm:command_eval)
 from gen/moar/stage2/NQPHLL.nqp:1654  (/home/dogbert/repos/rakudo/install/share/nqp/lib/NQPHLL.moarvm:command_line)
 from gen/moar/main.nqp:47  (/home/dogbert/repos/rakudo/perl6.moarvm:MAIN)
 from gen/moar/main.nqp:38  (/home/dogbert/repos/rakudo/perl6.moarvm:<mainline>)
 from <unknown>:1  (/home/dogbert/repos/rakudo/perl6.moarvm:<main>)
 from <unknown>:1  (/home/dogbert/repos/rakudo/perl6.moarvm:<entry>)
$1 = void
(gdb)