1559    in sql_class.cc
(gdb) n

Program received signal SIGSEGV, Segmentation fault.
0x00002aaaaab493f8 in ?? ()
(gdb) p free_list
$14 = {void (I_List<i_string_pair> *)} 0x574298 <free_list(I_List<i_string_pair>*)>
(gdb) bt
#0  0x00002aaaaab493f8 in ?? ()
#1  0x000000000057262a in Item::delete_self (this=0x2aaaaab49420) at item.h:742
#2  0x000000000056c350 in Query_arena::free_items (this=0x2aaaaab3f970) at sql_class.cc:1559
#3  0x000000000056c3c4 in THD::cleanup_after_query (this=0x2aaaaab3f958) at sql_class.cc:563
#4  0x00000000005a3dd3 in mysql_parse (thd=0x2aaaaab3f958,
    inBuf=0x2aaaaab47b28 "SELECT DISTINCT A0.cv_label,A0.accession,A0.name FROM mzdata_param A0 WHERE ( ( A0.param_type = 5) AND  (A0.classname = 'uk.ac.ebi.pride.rdbms.ojb.model.mzData.CvParamBean')) AND  (A0.classname = 'uk."..., length=262) at sql_parse.cc:5716
#5  0x00000000005a65c9 in dispatch_command (command=COM_QUERY, thd=0x2aaaaab3f958, packet=0x2aaaaab43a99 "", packet_length=263)
    at sql_parse.cc:1736
#6  0x00000000005a7df2 in do_command (thd=0x2aaaaab3f958) at sql_parse.cc:1522
#7  0x00000000005a917a in handle_one_connection (arg=0x2aaaaab3f958) at sql_parse.cc:1165
#8  0x0000000000584072 in create_new_thread (thd=0x2aaaaab3f958) at mysqld.cc:3849
#9  0x0000000000584836 in handle_connections_sockets (arg=0x0) at mysqld.cc:4122
#10 0x0000000000586b94 in main (argc=9, argv=0x7fff8920e1e8) at mysqld.cc:3501
(gdb) bt full
#0  0x00002aaaaab493f8 in ?? ()
No symbol table info available.
#1  0x000000000057262a in Item::delete_self (this=0x2aaaaab49420) at item.h:742
No locals.
#2  0x000000000056c350 in Query_arena::free_items (this=0x2aaaaab3f970) at sql_class.cc:1559
        next = (class Item *) 0x2aaaaab49220
        _db_func_ = 0x902250 "mysql_parse"
        _db_file_ = 0x9017a2 "sql_parse.cc"
        _db_level_ = 5
        _db_framep_ = (char **) 0x2aaaaab3f9d8
#3  0x000000000056c3c4 in THD::cleanup_after_query (this=0x2aaaaab3f958) at sql_class.cc:563
No locals.
#4  0x00000000005a3dd3 in mysql_parse (thd=0x2aaaaab3f958,
    inBuf=0x2aaaaab47b28 "SELECT DISTINCT A0.cv_label,A0.accession,A0.name FROM mzdata_param A0 WHERE ( ( A0.param_type = 5) AND  (A0.classname = 'uk.ac.ebi.pride.rdbms.ojb.model.mzData.CvParamBean')) AND  (A0.classname = 'uk."..., length=262) at sql_parse.cc:5716
        lex = (LEX *) 0x2aaaaab3f9c0
        _db_func_ = 0x9023f9 "dispatch_command"
        _db_file_ = 0x9017a2 "sql_parse.cc"
        _db_level_ = 4
        _db_framep_ = (char **) 0x8745d1
        __PRETTY_FUNCTION__ = "void mysql_parse(THD*, char*, uint)"
#5  0x00000000005a65c9 in dispatch_command (command=COM_QUERY, thd=0x2aaaaab3f958, packet=0x2aaaaab43a99 "", packet_length=263)
    at sql_parse.cc:1736
        packet_end = 0x2aaaaab47c2e ""
        net = (NET *) 0x2aaaaab40758
        error = false
        _db_func_ = 0x8f5148 "create_new_thread"
        _db_file_ = 0x8f324b "mysqld.cc"
        _db_level_ = 3
        _db_framep_ = (char **) 0x7fff8920dcc0
#6  0x00000000005a7df2 in do_command (thd=0x2aaaaab3f958) at sql_parse.cc:1522
        packet = 0x2aaaaab43a98 "\001"
        old_timeout = 30
        packet_length = 263
        net = (NET *) 0x2aaaaab40758
        command = COM_QUERY
        _db_func_ = 0x8f5148 "create_new_thread"
        _db_file_ = 0x8f324b "mysqld.cc"
        _db_level_ = 3
        _db_framep_ = (char **) 0x856aa8
#7  0x00000000005a917a in handle_one_connection (arg=0x2aaaaab3f958) at sql_parse.cc:1165
        error = 0
        net = (NET *) 0x2aaaaab40758
        sctx = (Security_context *) 0x2aaaaab413e0
        thd = (class THD *) 0x2aaaaab3f958
        launch_time = 2670922484
        set = {__val = {0 <repeats 16 times>}}
#8  0x0000000000584072 in create_new_thread (thd=0x2aaaaab3f958) at mysqld.cc:3849
        _db_func_ = 0x8f51c8 "handle_connections_sockets"
        _db_file_ = 0x8f324b "mysqld.cc"
---Type <return> to continue, or q <return> to quit---
        _db_level_ = 2
        _db_framep_ = (char **) 0x8f06a8
        net = (NET *) 0x2aaaaab40758
#9  0x0000000000584836 in handle_connections_sockets (arg=0x0) at mysqld.cc:4122
        sock = 19
        new_sock = 32
        error_count = 0
        max_used_connection = 20
        readFDs = {fds_bits = {524288, 0 <repeats 15 times>}}
        clientFDs = {fds_bits = {786432, 0 <repeats 15 times>}}
        thd = (class THD *) 0x2aaaaab3f958
        cAddr = {sin_family = 1, sin_port = 35104, sin_addr = {s_addr = 32767}, sin_zero = "\202\222\225\000�\000\000"}
        ip_flags = 2
        socket_flags = 2
        flags = 2
        vio_tmp = (st_vio *) 0x2aaaaab0ca28
        _db_func_ = 0x991b34 "?func"
        _db_file_ = 0x991b3a "?file"
        _db_level_ = 1
        _db_framep_ = (char **) 0xcea
#10 0x0000000000586b94 in main (argc=9, argv=0x7fff8920e1e8) at mysqld.cc:3501
        stack_size = 262144
(gdb)