(gdb) bt full
#0 0x00007f07d58bf220 in pthread_mutex_lock () from /lib64/libpthread.so.0
No symbol table info available.
#1 0x00007f07d1c20fe9 in ?? ()
No symbol table info available.
#2 0x00007f07d84b4640 in ?? ()
No symbol table info available.
#3 0x00007f07d24b5fd8 in ?? ()
No symbol table info available.
#4 0x0000000000000800 in ?? ()
No symbol table info available.
#5 0x00007f07d84b4640 in ?? ()
No symbol table info available.
#6 0x0000000000000003 in ?? ()
No symbol table info available.
#7 0x000000000000001c in ?? ()
No symbol table info available.
#8 0x00007f07d8623790 in ?? ()
No symbol table info available.
#9 0x00007f07d84b4640 in ?? ()
No symbol table info available.
#10 0x00007f07d8502d60 in ?? ()
No symbol table info available.
#11 0x00007fff64096260 in ?? ()
No symbol table info available.
#12 0x0000000000000003 in ?? ()
No symbol table info available.
#13 0x000000000000001c in ?? ()
No symbol table info available.
#14 0x00007f07d900d3f0 in ?? ()
No symbol table info available.
#15 0x00007f07d24b633c in ?? ()
No symbol table info available.
#16 0x00007f07d84b42c0 in ?? ()
No symbol table info available.
#17 0x0000000000000000 in ?? ()
No symbol table info available.