coredump.log

[dan@alexandria nqp]$ coredumpctl debug
           PID: 403391 (moar)
           UID: 1000 (dan)
           GID: 100 (users)
        Signal: 11 (SEGV)
     Timestamp: Tue 2021-06-29 05:26:13 EDT (28min ago)
  Command Line: /home/dan/Source/perl6/install/bin/moar --execname=/home/dan/Source/perl6/rakudo/rakudo-m --libpath=/home/dan/Source/perl6/rakudo --libpath=/home/dan/Source/perl6/rakudo/blib --libpath=/home/dan/Source/perl6/install/share/nqp/lib /home/dan/Source/perl6/rakudo/rakudo.moarvm t/09-moar/Line_Break__LineBreak.t
    Executable: /home/dan/Source/perl6/install/bin/moar
 Control Group: /user.slice/user-1000.slice/user@1000.service/app.slice/app-org.kde.yakuake-8e2e647b9f2a47b19929338299d4e853.scope
          Unit: user@1000.service
     User Unit: app-org.kde.yakuake-8e2e647b9f2a47b19929338299d4e853.scope
         Slice: user-1000.slice
     Owner UID: 1000 (dan)
       Boot ID: 60cfb9ebcc9c48458b9f55a3a415f5c7
    Machine ID: 30686bbe4d464a1a82a55c49d07cc072
      Hostname: alexandria
       Storage: /var/lib/systemd/coredump/core.moar.1000.60cfb9ebcc9c48458b9f55a3a415f5c7.403391.1624958773000000.zst (present)
     Disk Size: 8.8M
       Message: Process 403391 (moar) of user 1000 dumped core.
                
                Stack trace of thread 403392:
                #0  0x00007f360fdf6df6 n/a (n/a + 0x0)

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Reading symbols from /home/dan/Source/perl6/install/bin/moar...
[New LWP 403392]
[New LWP 403391]
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/usr/lib/libthread_db.so.1".
Core was generated by `/home/dan/Source/perl6/install/bin/moar --execname=/home/dan/Source/perl6/rakud'.
Program terminated with signal SIGSEGV, Segmentation fault.
#0  MVM_spesh_stats_cleanup (tc=0x562a1ab5f770, check_frames=0xd30) at src/spesh/stats.c:665
665             MVMSpeshStats *ss = spesh->body.spesh_stats;
[Current thread is 1 (Thread 0x7f360f25b640 (LWP 403392))]
(gdb) bt
#0  MVM_spesh_stats_cleanup (tc=0x562a1ab5f770, check_frames=0xd30) at src/spesh/stats.c:665
#1  0x00000000000000c0 in ?? ()
#2  0x0000000000000073 in ?? ()
#3  0x00007f360fdf496d in worker (tc=0x562a1afbcfc8, callsite=<optimized out>, args=<optimized out>) at src/spesh/worker.c:24
#4  0x00007f360fd60581 in thread_initial_invoke (tc=0x562a1ab5f770, data=<optimized out>) at src/core/threads.c:58
#5  0x00007f360fd36476 in MVM_interp_run (tc=0x8, tc@entry=0x562a1ab5f770, initial_invoke=0x7f360feb5220, initial_invoke@entry=0x7f360fd60540 <thread_initial_invoke>, invoke_data=0x7f360feb5220, 
    invoke_data@entry=0x7f360fd60540 <thread_initial_invoke>, outer_runloop=0x562a1ab292a0, outer_runloop@entry=0x0) at src/core/interp.c:158
#6  0x00007f360fd60619 in start_thread (data=0x562a1ab60b00) at src/core/threads.c:91
#7  0x00007f360f7ce259 in start_thread () from /usr/lib/libpthread.so.0
#8  0x00007f360fa285e3 in clone () from /usr/lib/libc.so.6
(gdb)p ss
$1 = <optimized out>
(gdb) p *ss
value has been optimized out
(gdb) p spesh
$2 = (MVMStaticFrameSpesh *) 0x10c5
(gdb) p *spesh
Cannot access memory at address 0x10c5
(gdb) list
660         MVMint64 insert_pos = 0;
661         MVMint64 i;
662         for (i = 0; i < elems; i++) {
663             MVMStaticFrame *sf = (MVMStaticFrame *)MVM_repr_at_pos_o(tc, check_frames, i);
664             MVMStaticFrameSpesh *spesh = sf->body.spesh;
665             MVMSpeshStats *ss = spesh->body.spesh_stats;
666             if (!ss) {
667                 /* No stats; already destroyed, don't keep this frame under
668                  * consideration. */
669             }
(gdb) p sf
$3 = (MVMStaticFrame *) 0x562a1ab292a0
(gdb) p *sf
$4 = {common = {header = {sc_forward_u = {forwarder = 0x0, sc = {sc_idx = 0, idx = 0}, st = 0x0}, owner = 1, flags1 = 1 '\001', flags2 = 2 '\002', size = 24}, st = 0x562a1ab1cbf0}, body = {
    bytecode = 0xffffffff00000001 <error: Cannot access memory at address 0xffffffff00000001>, cu = 0x18020100000001, local_types = 0x562a1ab1ccb8, lexical_types = 0xffffffff00000001, lexical_names = {table = 0x18020100000001}, 
    lexical_names_list = 0x562a1ab1cd80, static_env = 0xffffffff00000001, static_env_flags = 0x18020100000001 <error: Cannot access memory at address 0x18020100000001>, has_state_vars = 72 'H', allocate_on_heap = 206 '\316', 
    no_inline = 177 '\261', specializable = 26 '\032', instrumentation_level = 22058, spesh = 0xffffffff00000001, env_size = 1, work_size = 1573377, num_lexicals = 447860496, num_annotations = 22058, work_initial = 0xffffffff00000001, 
    bytecode_size = 1, num_locals = 1573377, handlers = 0x562a1ab1cfd8, num_handlers = 0, fully_deserialized = 0 '\000', is_thunk = 0 '\000', has_exit_handler = 0 '\000', cuuid = 0x18020100000001, name = 0x562a1ab1d0a0, 
    outer = 0xffffffff00000001, static_code = 0x18020100000001, annotations_data = 0x562a1ab1d168 "\001", orig_bytecode = 0x0, frame_data_pos = 0x18020100000001 <error: Cannot access memory at address 0x18020100000001>, 
    frame_static_lex_pos = 0x562a1ab1d230 "", code_obj_sc_dep_idx = 1, code_obj_sc_idx = -1, instrumentation = 0x18020100000001}}
(gdb)