SEGV in new-disp

gistfile1.txt

dogbert@dogbert-VirtualBox:~/repos/rakudo$ gdb install/bin/moar core.moar.1000.f4e1afea0509471c9f4e9e8a321dd81a.1815842.1627821486000000000000
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Reading symbols from install/bin/moar...
[New LWP 1815843]
[New LWP 1815842]
[New LWP 1815844]
[New LWP 1815846]
[New LWP 1815847]
[New LWP 1815845]
[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  0x00007f518579ea2c in by_offset (tc=0x55697fa73a50, tss=0x25, bytecode_offset=136) at src/spesh/stats.c:120
120	    MVMuint32 n = tss->num_by_offset;
[Current thread is 1 (Thread 0x7f5185025700 (LWP 1815843))]
(gdb) bt
#0  0x00007f518579ea2c in by_offset (tc=0x55697fa73a50, tss=0x25, bytecode_offset=136) at src/spesh/stats.c:120
#1  0x00007f518579f8b7 in incorporate_stats (tc=0x55697fa73a50, simf=0x7f5180654ea8, frame_depth=223, caller=0x7f5180654e50, sf_updated=0x7f5180000b80) at src/spesh/stats.c:335
#2  0x00007f518579fbf4 in sim_stack_pop (tc=0x55697fa73a50, sims=0x7f51806297e0, sf_updated=0x7f5180000b80) at src/spesh/stats.c:404
#3  0x00007f51857a097a in MVM_spesh_stats_update (tc=0x55697fa73a50, sl=0x7f51740a56c0, sf_updated=0x7f5180000b80, in_newly_seen=0x7f5185023290, in_updated=0x7f5185023298) at src/spesh/stats.c:616
#4  0x00007f518579d5b1 in worker (tc=0x55697fa73a50, arg_info=...) at src/spesh/worker.c:24
#5  0x00007f51856f74c2 in invoke_handler (tc=0x55697fa73a50, invokee=0x55697fa3bd80, callsite=0x7f5185e0cc80 <zero_arity_callsite>, args=0x0) at src/6model/reprs/MVMCFunction.c:42
#6  0x00007f5185687c05 in thread_initial_invoke (tc=0x55697fa73a50, data=0x55697fa75040) at src/core/threads.c:58
#7  0x00007f5185634142 in MVM_interp_run (tc=0x55697fa73a50, initial_invoke=0x7f5185687b76 <thread_initial_invoke>, invoke_data=0x55697fa75040, outer_runloop=0x0) at src/core/interp.c:180
#8  0x00007f5185687cda in start_thread (data=0x55697fa75040) at src/core/threads.c:92
#9  0x00007f51850bb609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#10 0x00007f5185346293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
(gdb) l
115	/* Get the stats by offset entry, adding it if it's missing. */
116	MVMSpeshStatsByOffset * by_offset(MVMThreadContext *tc, MVMSpeshStatsByType *tss,
117	                                  MVMuint32 bytecode_offset) {
118	    /* See if we already have it. */
119	    MVMuint32 found;
120	    MVMuint32 n = tss->num_by_offset;
121	    for (found = 0; found < n; found++)
122	        if (tss->by_offset[found].bytecode_offset == bytecode_offset)
123	            return &(tss->by_offset[found]);
124	
(gdb) info threads
  Id   Target Id                           Frame 
* 1    Thread 0x7f5185025700 (LWP 1815843) 0x00007f518579ea2c in by_offset (tc=0x55697fa73a50, tss=0x25, bytecode_offset=136) at src/spesh/stats.c:120
  2    Thread 0x7f51850ab440 (LWP 1815842) futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55697fa6fc7c) at ../sysdeps/nptl/futex-internal.h:183
  3    Thread 0x7f517e12b700 (LWP 1815844) 0x00007f518567bb9b in MVM_frame_try_return (tc=0x556983676330) at src/core/frame.c:1124
  4    Thread 0x7f517d11a700 (LWP 1815846) 0x00007f518576a818 in MVM_disp_program_run (tc=0x7f5170101a50, dp=0x7f517813afc0, record=0x7f517849fc48, spesh_cid=0, bytecode_offset=4294967295, dp_index=0)
    at src/disp/program.c:2566
  5    Thread 0x7f517c8ab700 (LWP 1815847) MVM_thread_id (tc=0x7f517014c500, thread_obj=0x7f51782323e0) at src/core/threads.c:224
  6    Thread 0x7f517d92a700 (LWP 1815845) 0x00007f51853043bf in __GI___clock_nanosleep (clock_id=clock_id@entry=0, flags=flags@entry=0, req=0x7f517d9283c0, rem=0x7f517d9283c0)
    at ../sysdeps/unix/sysv/linux/clock_nanosleep.c:78
(gdb)