.
Thread 2 (Thread 0x7f5b467f6700 (LWP 6678)):
#0  clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:84
No locals.
#1  0x00007f5b4fab7dc0 in ?? () at pthread_create.c:172 from /tmp/tmpsG6Yao/lib/x86_64-linux-gnu/libpthread.so.0
No symbol table info available.
#2  0x00007f5b467f6700 in ?? ()
No symbol table info available.
#3  0x0000000000000000 in ?? ()
No symbol table info available.
.
Thread 1 (Thread 0x7f5b50b09700 (LWP 6677)):
#0  0x00007f5b4c964fdb in ?? ()
No symbol table info available.
#1  0x0000000002ff5101 in ?? ()
No symbol table info available.
#2  0x0000000400000000 in ?? ()
No symbol table info available.
#3  0x0000000000000001 in ?? ()
No symbol table info available.
#4  0x0000000000000000 in ?? ()
No symbol table info available.