Unrecoverable error 6005: Why ?

[rafathefull]

Hi, sometines, random, show this error;
./sourceview_s
Unrecoverable error 6005: Exception SIGSEGV at address 0x1011b88

./navigator_s
Unrecoverable error 6005: Exception SIGSEGV at address 0x1ccb9c8
[1] 568 segmentation fault (core dumped) ./navigator_s

Why ? It's possible debug about this ?
How debug this problem ?

[rafathefull]

Hi.. Investigation in send possible problem in function hbgobject_pointer_register_types
Please , can you confirm this problem ?

demo git:(master) ✗ gdb navigator_s
This GDB was configured as "x86_64-linux-gnu".
(gdb) run
Starting program: /home/rafa/hbgi/demo/navigator_s
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".

Program received signal SIGSEGV, Segmentation fault.
0x00000000006549c8 in ?? ()
(gdb) backtrace
#0 0x00000000006549c8 in ?? ()
#1 0x00007ffff79ed230 in hb_gcRefFree () from /usr/local/lib/libharbour.so.3.4
#2 0x00007ffff79ed350 in hb_itemRelease () from /usr/local/lib/libharbour.so.3.4
#3 0x0000000000413239 in hbgobject_pointer_register_types ()
at ../../home/rafa/hbgi/gobject/hbgpointer.c:209
#4 0x0000000000412fb9 in hbgobject_init (dummy=0x0) at ../../home/rafa/hbgi/gobject/hbgobject.c:2308
#5 0x00007ffff7a29fd9 in hb_vmInit () from /usr/local/lib/libharbour.so.3.4
#6 0x00007ffff7829183 in main () from /usr/local/lib/libharbour.so.3.4
#7 0x00007ffff6bfbf45 in __libc_start_main () from /lib/x86_64-linux-gnu/libc.so.6
#8 0x0000000000406cb5 in _start ()
(gdb) Quit