# mysqladmin -u root -p

 mysqladmin  Ver 9.0 Distrib 5.5.41-MariaDB, for Linux on s390x

 Copyright (c) 2000, 2014, Oracle, MariaDB Corporation Ab and others.

 Administration program for the mysqld daemon.

 Usage: mysqladmin [OPTIONS] command command....

 Default options are read from the following files in the given order:

 Segmentation fault (core dumped)

   # mysqladmin -u root -p

Using host libthread_db library "/lib64/libthread_db.so.1".

Core was generated by `mysqladmin -u root -p'.

Program terminated with signal 11, Segmentation fault.

#0  0x00007f4cb75224bd in malloc_consolidate (av=av@entry=0x7f4cb7860760 <main_arena>) at malloc.c:4129

4129		      unlink(av, nextchunk, bck, fwd);

(gdb) bt

#0  0x00007f4cb75224bd in malloc_consolidate (av=av@entry=0x7f4cb7860760 <main_arena>) at malloc.c:4129

#1  0x00007f4cb75230e7 in _int_free (av=0x7f4cb7860760 <main_arena>, p=0x7f4cba6ce8b0, have_lock=0) at malloc.c:4021

#2  0x00007f4cb8d5da48 in free_root (root=root@entry=0x7fff66a257c0, MyFlags=MyFlags@entry=0) at /usr/src/debug/mariadb-5.5.41/mysys/my_alloc.c:372

#3  0x00007f4cb8d682bd in my_print_default_files (conf_file=0x7f4cb8d7ff84 "my") at /usr/src/debug/mariadb-5.5.41/mysys/default.c:1075

#4  0x00007f4cb8d68348 in print_defaults (conf_file=<optimized out>, groups=0x7f4cb91f85e0 <load_default_groups>)

    at /usr/src/debug/mariadb-5.5.41/mysys/default.c:1083

#5  0x00007f4cb8d37cf7 in usage () at /usr/src/debug/mariadb-5.5.41/client/mysqladmin.cc:1235

#6  0x00007f4cb8d37ad6 in main (argc=0, argv=0x7f4cba6ce7a0) at /usr/src/debug/mariadb-5.5.41/client/mysqladmin.cc:330

(gdb)