#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
No locals.
#1  0x0000564a97d3105b in inline_mysql_cond_wait (src_file=0x564a98383b88 "/home/hartmut/projects/mariadb/releases/mariadb-10.2.1/sql/mysqld.cc", src_line=6324, 
    mutex=0x564a98b87240 <LOCK_thread_count>, that=0x564a98b86b40 <COND_thread_count>)
    at /home/hartmut/projects/mariadb/releases/mariadb-10.2.1/include/mysql/psi/mysql_thread.h:1149
        result = <optimized out>
#2  bootstrap (file=<optimized out>) at /home/hartmut/projects/mariadb/releases/mariadb-10.2.1/sql/mysqld.cc:6324
        thd = <optimized out>
        error = -512
#3  0x0000564a97d3ac37 in mysqld_main (argc=14, argv=0x7f5e87c7c4e8) at /home/hartmut/projects/mariadb/releases/mariadb-10.2.1/sql/mysqld.cc:5965
        ho_error = <optimized out>
        new_thread_stack_size = <optimized out>
#4  0x00007f5e88fac830 in __libc_start_main (main=0x564a97d1cc10 <main(int, char**)>, argc=11, argv=0x7fff6b209d38, init=<optimized out>, fini=<optimized out>, 
    rtld_fini=<optimized out>, stack_end=0x7fff6b209d28) at ../csu/libc-start.c:291
        result = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {0, -5463114453628400794, 94878374749760, 140734990687536, 0, 0, -1782026426318501018, -1871456903574500506}, 
              mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x7fff6b209d98, 0x7f5e8b619168}, data = {prev = 0x0, cleanup = 0x0, canceltype = 1797299608}}}
        not_first_call = <optimized out>
#5  0x0000564a97d2e669 in _start ()