(gdb) break my_end
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Breakpoint 1 at 0x10c12dc: file /home/dan/software_projects/mariadb-server/mysys/my_init.c, line 133.
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(gdb) run
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Starting program: /home/dan/software_projects/build-mariadb-10.3-debug/sql/mysqld --defaults-group-suffix=.1 --defaults-file=/home/dan/software_projects/build-mariadb-10.3-debug/mysql-test/var/my.cnf --log-output=file --gdb -# --core-file --loose-debug-sync-timeout=300
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[Thread debugging using libthread_db enabled]
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Using host libthread_db library "/lib64/libthread_db.so.1".
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Missing separate debuginfo for /lib64/liblz4.so.1
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...
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2018-03-18 16:14:11 0 [Note] /home/dan/software_projects/build-mariadb-10.3-debug/sql/mysqld (mysqld 10.3.6-MariaDB-debug-log) starting as process 18223 ...
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2018-03-18 16:14:11 0 [Warning] Could not increase number of max_open_files to more than 1024 (request: 4162)
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[New Thread 0x7ffff46a5700 (LWP 18227)]
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[New Thread 0x7ffff33c7700 (LWP 18228)]
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[New Thread 0x7ffff7e54700 (LWP 18229)]
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[New Thread 0x7ffff2bc6700 (LWP 18230)]
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[New Thread 0x7ffff2b7b700 (LWP 18233)]
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Thread 6 "mysqld" received signal SIGSEGV, Segmentation fault.
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[Switching to Thread 0x7ffff2b7b700 (LWP 18233)]
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0x0000555555d8df1a in Dep_analysis_context::dbug_print_deps (
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this=0x7ffff2b78b20)
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at /home/dan/software_projects/mariadb-server/sql/opt_table_elimination.cc:1841
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1841 eq_mod->expr->print(&str, QT_ORDINARY);
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(gdb) bt
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#0 0x0000555555d8df1a in Dep_analysis_context::dbug_print_deps (
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this=0x7ffff2b78b20)
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at /home/dan/software_projects/mariadb-server/sql/opt_table_elimination.cc:1841
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#1 0x0000555555d8bc91 in check_func_dependency (join=0x7fffe001a350,
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dep_tables=12, it=0x7ffff2b78de0, oj_tbl=0x0, cond=0x7fffe001a920)
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at /home/dan/software_projects/mariadb-server/sql/opt_table_elimination.cc:863
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#2 0x0000555555d8b905 in eliminate_tables_for_list (join=0x7fffe001a350,
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join_list=0x7fffe00189c8, list_tables=12, on_expr=0x7fffe001a920,
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tables_used_elsewhere=3)
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at /home/dan/software_projects/mariadb-server/sql/opt_table_elimination.cc:773
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#3 0x0000555555d8b74c in eliminate_tables_for_list (join=0x7fffe001a350,
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join_list=0x7fffe0005318, list_tables=15, on_expr=0x0,
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tables_used_elsewhere=3)
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at /home/dan/software_projects/mariadb-server/sql/opt_table_elimination.cc:733
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#4 0x0000555555d8b626 in eliminate_tables (join=0x7fffe001a350)
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at /home/dan/software_projects/mariadb-server/sql/opt_table_elimination.cc:671
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#5 0x0000555555c20c00 in make_join_statistics (join=0x7fffe001a350,
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tables_list=..., keyuse_array=0x7fffe001a640)
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---Type <return> to continue, or q <return> to quit---
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at /home/dan/software_projects/mariadb-server/sql/sql_select.cc:4496
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#6 0x0000555555c17b2b in JOIN::optimize_inner (this=0x7fffe001a350)
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at /home/dan/software_projects/mariadb-server/sql/sql_select.cc:1882
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#7 0x0000555555c16441 in JOIN::optimize (this=0x7fffe001a350)
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at /home/dan/software_projects/mariadb-server/sql/sql_select.cc:1467
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#8 0x0000555555c1fae8 in mysql_select (thd=0x7fffe0000d60,
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tables=0x7fffe0015360, wild_num=0, fields=..., conds=0x0, og_num=2,
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order=0x0, group=0x7fffe001a038, having=0x0, proc_param=0x0,
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select_options=2147748608, result=0x7fffe001a330, unit=0x7fffe0004a00,
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select_lex=0x7fffe0005178)
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at /home/dan/software_projects/mariadb-server/sql/sql_select.cc:4172
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#9 0x0000555555c11ed2 in handle_select (thd=0x7fffe0000d60,
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lex=0x7fffe0004938, result=0x7fffe001a330, setup_tables_done_option=0)
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at /home/dan/software_projects/mariadb-server/sql/sql_select.cc:370
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#10 0x0000555555bde0e9 in execute_sqlcom_select (thd=0x7fffe0000d60,
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all_tables=0x7fffe0015360)
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at /home/dan/software_projects/mariadb-server/sql/sql_parse.cc:6552
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#11 0x0000555555bd442e in mysql_execute_command (thd=0x7fffe0000d60)
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at /home/dan/software_projects/mariadb-server/sql/sql_parse.cc:3763
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#12 0x0000555555be19cf in mysql_parse (thd=0x7fffe0000d60,
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rawbuf=0x7fffe0014ca8 "SELECT a.f3, cr.f4, count(*) count\nFROM t2 a\nSTRAIGHT_JOIN t1 cr ON cr.f2 = a.f1\nLEFT JOIN\n(t1 cr2\nJOIN t3 ae2 ON cr2.f3 = ae2.f1\n) ON a.f1 = cr2.f2 AND ae2.f2 < now() - INTERVAL 7 DAY AND\ncr.f4 = cr2"..., ---Type <return> to continue, or q <return> to quit---
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length=224, parser_state=0x7ffff2b7a480, is_com_multi=false,
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is_next_command=false)
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at /home/dan/software_projects/mariadb-server/sql/sql_parse.cc:8009
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#13 0x0000555555bcefe2 in dispatch_command (command=COM_QUERY,
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thd=0x7fffe0000d60,
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packet=0x7fffe000b311 "SELECT a.f3, cr.f4, count(*) count\nFROM t2 a\nSTRAIGHT_JOIN t1 cr ON cr.f2 = a.f1\nLEFT JOIN\n(t1 cr2\nJOIN t3 ae2 ON cr2.f3 = ae2.f1\n) ON a.f1 = cr2.f2 AND ae2.f2 < now() - INTERVAL 7 DAY AND\ncr.f4 = cr2"..., packet_length=224, is_com_multi=false, is_next_command=false)
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at /home/dan/software_projects/mariadb-server/sql/sql_parse.cc:1837
|
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#14 0x0000555555bcdad2 in do_command (thd=0x7fffe0000d60)
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at /home/dan/software_projects/mariadb-server/sql/sql_parse.cc:1382
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#15 0x0000555555d2c968 in do_handle_one_connection (connect=0x555557c1a690)
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at /home/dan/software_projects/mariadb-server/sql/sql_connect.cc:1402
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#16 0x0000555555d2c6e8 in handle_one_connection (arg=0x555557c1a690)
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at /home/dan/software_projects/mariadb-server/sql/sql_connect.cc:1308
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#17 0x00007ffff7bc150b in start_thread (arg=0x7ffff2b7b700)
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at pthread_create.c:465
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#18 0x00007ffff558016f in clone ()
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at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
|
(gdb)
|
(gdb)
|
(gdb)
|
(gdb) list
|
1836 eq_mod != equality_mods + n_equality_mods; eq_mod++)
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1837 {
|
1838 char buf[128];
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1839 String str(buf, sizeof(buf), &my_charset_bin);
|
1840 str.length(0);
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1841 eq_mod->expr->print(&str, QT_ORDINARY);
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1842 if (eq_mod->field)
|
1843 {
|
1844 fprintf(DBUG_FILE, " equality%ld: %s -> %s.%s\n",
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1845 (long)(eq_mod - equality_mods),
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(gdb) p *eq_mod
|
$1 = {<Dep_module> = {<Sql_alloc> = {<No data fields>},
|
_vptr.Dep_module = 0x555556f5c100 <vtable for Dep_module_expr+16>,
|
static iterator_size = 40, unbound_args = 1}, field = 0x0, expr = 0x0,
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mult_equal_fields = 0x7fffe01d6230, level = 0, static iterator_size = 40}
|