(gdb) bt full
#0  0x00002b4da522f485 in waitpid () from /lib/libc.so.6
No symbol table info available.
#1  0x0000000000433cb7 in ?? ()
No symbol table info available.
#2  0x00000000004359ce in wait_for ()
No symbol table info available.
#3  0x00000000004293a4 in execute_command_internal ()
No symbol table info available.
#4  0x0000000000429289 in execute_command_internal ()
No symbol table info available.
#5  0x000000000042748f in execute_command ()
No symbol table info available.
#6  0x00000000004285d8 in execute_command_internal ()
No symbol table info available.
#7  0x000000000042748f in execute_command ()
No symbol table info available.
#8  0x0000000000429261 in execute_command_internal ()
No symbol table info available.
#9  0x000000000042748f in execute_command ()
No symbol table info available.
#10 0x0000000000429261 in execute_command_internal ()
No symbol table info available.
#11 0x000000000042748f in execute_command ()
No symbol table info available.
#12 0x0000000000429261 in execute_command_internal ()
No symbol table info available.
#13 0x000000000042748f in execute_command ()
No symbol table info available.
#14 0x0000000000429261 in execute_command_internal ()
No symbol table info available.
#15 0x000000000042748f in execute_command ()
No symbol table info available.
#16 0x0000000000429261 in execute_command_internal ()
No symbol table info available.
#17 0x000000000042748f in execute_command ()
No symbol table info available.
#18 0x0000000000427529 in ?? ()
No symbol table info available.
#19 0x00000000004285f7 in execute_command_internal ()
No symbol table info available.
#20 0x000000000042887b in execute_command_internal ()
No symbol table info available.
#21 0x0000000000429989 in ?? ()
No symbol table info available.
#22 0x0000000000429bc7 in ?? ()
No symbol table info available.
#23 0x000000000042a27a in ?? ()
No symbol table info available.
#24 0x0000000000428673 in execute_command_internal ()
No symbol table info available.
#25 0x00000000004292fa in execute_command_internal ()
No symbol table info available.
#26 0x000000000042748f in execute_command ()
No symbol table info available.
#27 0x000000000041ab12 in reader_loop ()
No symbol table info available.
#28 0x000000000041a728 in main ()
No symbol table info available.
(gdb) bt
#0  0x00002b4da522f485 in waitpid () from /lib/libc.so.6
#1  0x0000000000433cb7 in ?? ()
#2  0x00000000004359ce in wait_for ()
#3  0x00000000004293a4 in execute_command_internal ()
#4  0x0000000000429289 in execute_command_internal ()
#5  0x000000000042748f in execute_command ()
#6  0x00000000004285d8 in execute_command_internal ()
#7  0x000000000042748f in execute_command ()
#8  0x0000000000429261 in execute_command_internal ()
#9  0x000000000042748f in execute_command ()
#10 0x0000000000429261 in execute_command_internal ()
#11 0x000000000042748f in execute_command ()
#12 0x0000000000429261 in execute_command_internal ()
#13 0x000000000042748f in execute_command ()
#14 0x0000000000429261 in execute_command_internal ()
#15 0x000000000042748f in execute_command ()
#16 0x0000000000429261 in execute_command_internal ()
#17 0x000000000042748f in execute_command ()
#18 0x0000000000427529 in ?? ()
#19 0x00000000004285f7 in execute_command_internal ()
#20 0x000000000042887b in execute_command_internal ()
#21 0x0000000000429989 in ?? ()
#22 0x0000000000429bc7 in ?? ()
#23 0x000000000042a27a in ?? ()
#24 0x0000000000428673 in execute_command_internal ()
#25 0x00000000004292fa in execute_command_internal ()
#26 0x000000000042748f in execute_command ()
#27 0x000000000041ab12 in reader_loop ()
#28 0x000000000041a728 in main ()
(gdb) quit