| Bug #57179 | the very holy csv engine | ||
|---|---|---|---|
| Submitted: | 1 Oct 2010 17:48 | Modified: | 11 Feb 2011 7:06 |
| Reporter: | Shane Bester (Platinum Quality Contributor) | Email Updates: | |
| Status: | Can't repeat | Impact on me: | |
| Category: | MySQL Server: CSV | Severity: | S1 (Critical) |
| Version: | 5.1.51 | OS: | Any |
| Assigned to: | CPU Architecture: | Any | |
| Tags: | csv, Leak, memory leak | ||
[3 Oct 2010 13:06]
Valeriy Kravchuk
What exact valgrind version and command line you had used? I can not repeat this with current 5.1.52 or 5.5.7 from bzr with valgrind-3.6.0.SVN-Debian on Ubuntu 10.04.
[3 Oct 2010 13:42]
MySQL Verification Team
repeatable in 5.1.51 but not repeatable in 5.1.52. i don't know where this was fixed, would be nice to know.
[3 Oct 2010 15:48]
MySQL Verification Team
still leaking, but i have to make another testcase for 5.1.52 ......
Attachment: bug57179_5.1.52_csv_leaks.txt (text/plain), 33.76 KiB.
Description: csv leaks like a sieve. 8,160 bytes in 1 blocks are definitely lost in loss record 1 of 2 at : malloc (vg_replace_malloc.c:195) by : my_malloc (my_malloc.c:35) by : alloc_root (my_alloc.c:217) by : ha_tina::find_current_row (ha_tina.cc:704) by : ha_tina::rnd_next (ha_tina.cc:1118) by : rr_sequential (records.cc:385) by : sub_select (sql_select.cc:11402) by : evaluate_join_record (sql_select.cc:11529) by : sub_select (sql_select.cc:11403) by : do_select (sql_select.cc:11159) by : JOIN::exec (sql_select.cc:2322) by : mysql_select (sql_select.cc:2525) How to repeat: run mysqld in valgrind with --leak-check=full then: drop table if exists `t1`; create table `t1` (`a` text not null,b int not null) engine=csv default charset=latin1; insert into t1 values ('1',1),('3',1),('2',3); select * from `t1` right join `t1` `t2` on (t1.a <> t2.b);