#!/bin/sh

gdbrc=/tmp/bootsrap.gdb

cat <<EOF > $gdbrc

start

break bootstrap

commands

    commands

        backtrace

        echo bootstrap() entered again!\n

        continue

    end

    signal SIGINT

end

continue

EOF

gdb -q -x $gdbrc --args mysqld --debug-gdb --silent-startup --bootstrap

Thread 1 "mysqld" hit Breakpoint 2, bootstrap (file=0x28859f0 [instrumented_stdin]) at /home/midenok/src/mariadb/upstream/src/sql/mysqld.cc:6445

6445      DBUG_ENTER("bootstrap");

Thread 1 "mysqld" hit Breakpoint 2, bootstrap (file=0x28859f0 [instrumented_stdin]) at /home/midenok/src/mariadb/upstream/src/sql/mysqld.cc:6445

6445      DBUG_ENTER("bootstrap");

h1.0  bootstrap (file=0x28859f0 [instrumented_stdin]) at /home/midenok/src/mariadb/upstream/src/sql/mysqld.cc:6445

h1.1  0x000000000064b560 in mysqld_main (argc=5, argv=0x28a5818) at /home/midenok/src/mariadb/upstream/src/sql/mysqld.cc:6097

h1.2  0x0000000000646b02 in main (argc=4, argv=0x7fffffffd378) at /home/midenok/src/mariadb/upstream/src/sql/main.cc:25

bootstrap() entered again!

Thread 32 "mysqld" received signal SIGSEGV, Segmentation fault.

[Switching to Thread 0x7ffff4c38700 (LWP 18210)]

0x000000000141b110 in my_hash_free_elements (hash=0x370) at /home/midenok/src/mariadb/upstream/src/mysys/hash.c:118

118       uint records= hash->records;

h1.0  0x000000000141b110 in my_hash_free_elements (hash=0x370) at /home/midenok/src/mariadb/upstream/src/mysys/hash.c:118

h1.1  0x000000000141b1fa in my_hash_reset (hash=0x370) at /home/midenok/src/mariadb/upstream/src/mysys/hash.c:171

h1.2  0x000000000094caba in Master_info_index::free_connections (this=0x0) at /home/midenok/src/mariadb/upstream/src/sql/rpl_mi.cc:1057

h1.3  0x000000000068b652 in slave_prepare_for_shutdown () at /home/midenok/src/mariadb/upstream/src/sql/slave.cc:1391

h1.4  0x0000000000656685 in close_connections () at /home/midenok/src/mariadb/upstream/src/sql/mysqld.cc:1764

h1.5  0x000000000064789d in kill_server (sig_ptr=0x0) at /home/midenok/src/mariadb/upstream/src/sql/mysqld.cc:2034

h1.6  0x00000000006475ad in kill_server_thread (arg=0x7ffff4c81e6c) at /home/midenok/src/mariadb/upstream/src/sql/mysqld.cc:2066

h1.7  0x00007ffff7bbd7fc in start_thread (arg=0x7ffff4c38700) at pthread_create.c:465

h1.8  0x00007ffff5e81b5f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

(gdb) f 0

h1.0  0x000000000141b110 in my_hash_free_elements (hash=0x370) at /home/midenok/src/mariadb/upstream/src/mysys/hash.c:118

118       uint records= hash->records;

(gdb) p hash

$1 = (HASH *) 0x370