This was when compiled with -g -O2 and no RTL_DEBUG. I have a coredump factory now.
[New LWP 9071] [New LWP 9048] [New LWP 5670] [Thread debugging using libthread_db enabled] Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1". Core was generated by `/usr/local/bin/pike /home/spike.git/spike -n background'. Program terminated with signal SIGSEGV, Segmentation fault. #0 0x00007fd21f0a2be1 in ?? () from /lib/x86_64-linux-gnu/libc.so.6 [Current thread is 1 (Thread 0x7fd21b9e3700 (LWP 9071))]
(gdb) where #0 0x00007fd21f0a2be1 in ?? () from /lib/x86_64-linux-gnu/libc.so.6 #1 0x00007fd21f0a3cf5 in ?? () from /lib/x86_64-linux-gnu/libc.so.6 #2 0x000055ebdbda1acd in really_free_mapping (m=0x55ebdd073790) at /home/srb/pike/src/mapping.c:70 #3 0x000055ebdbe2ccd8 in really_free_short_svalue_ptr (s=<optimized out>, type=<optimized out>) at /home/srb/pike/src/svalue.c:72 #4 0x000055ebdbdbb9a4 in destruct_object (o=0x55ebdcf97010, reason=reason@entry=DESTRUCT_EXPLICIT) at /home/srb/pike/src/object.c:1030 #5 0x000055ebdbe463e2 in f_destruct (args=1) at /home/srb/pike/src/builtin_functions.c:3747 #6 0x00007fd21d780162 in ?? () #7 0x0000000000000080 in ?? () #8 0x0000000000000000 in ?? ()