.
Thread 1 (Thread 0x7fdd244fe780 (LWP 6164)):
#0  0x00007fdd23544d1d in ?? () from /lib/x86_64-linux-gnu/libc.so.6
No symbol table info available.
#1  0x00007fdd23545dff in ?? () from /lib/x86_64-linux-gnu/libc.so.6
No symbol table info available.
#2  0x00007fdd23547121 in ?? () from /lib/x86_64-linux-gnu/libc.so.6
No symbol table info available.
#3  0x00007fdd23549213 in memalign () from /lib/x86_64-linux-gnu/libc.so.6
No symbol table info available.
#4  0x00007fdd2354a429 in posix_memalign () from /lib/x86_64-linux-gnu/libc.so.6
No symbol table info available.
#5  0x00007fdd23a88a8a in ext2fs_open2 () from /lib/x86_64-linux-gnu/libext2fs.so.2
No symbol table info available.
#6  0x00007fdd23a88fc9 in ext2fs_open () from /lib/x86_64-linux-gnu/libext2fs.so.2
No symbol table info available.
#7  0x000000000043a50f in ?? ()
No symbol table info available.
#8  0x000000000041e2e9 in ?? ()
No symbol table info available.
#9  0x000000000042bf58 in ?? ()
No symbol table info available.
#10 0x000000000042a0ad in ?? ()
No symbol table info available.
#11 0x00000000004353b0 in ?? ()
No symbol table info available.
#12 0x0000000000435b47 in ?? ()
No symbol table info available.
#13 0x0000000000436245 in ?? ()
No symbol table info available.
#14 0x00007fdd234ed30d in __libc_start_main () from /lib/x86_64-linux-gnu/libc.so.6
No symbol table info available.
#15 0x0000000000403409 in ?? ()
No symbol table info available.
#16 0x00007fffd4f31c68 in ?? ()
No symbol table info available.
#17 0x000000000000001c in ?? ()
No symbol table info available.
#18 0x0000000000000001 in ?? ()
No symbol table info available.
#19 0x00007fffd4f328af in ?? ()
No symbol table info available.
#20 0x0000000000000000 in ?? ()
No symbol table info available.