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  1. MariaDB Server
  2. MDEV-5047

virtual THD::~THD(): Assertion `status_var.memory_used == 0' fails on disconnect after an error and SHOW WARNINGS

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    Details

    • Type: Bug
    • Status: Closed (View Workflow)
    • Priority: Blocker
    • Resolution: Fixed
    • Affects Version/s: None
    • Fix Version/s: 10.0.5
    • Component/s: None
    • Labels:
      None

      Description

      bzr version-info
      revision-id: psergey@askmonty.org-20130920134524-lfb0zu42yhoo6pvt
      revno: 3692
      branch-nick: 10.0-base-explain-slowquerylog

      I'm not sure whether it's related to EXPLAIN update/delete or slow log, but it's reproducible on the tree, and is not reproducible on 10.0-base

      sql/sql_class.cc:1498: virtual THD::~THD(): Assertion `status_var.memory_used == 0' failed.

      #3  <signal handler called>
      #4  0x00007fd704f96425 in __GI_raise (sig=<optimised out>) at ../nptl/sysdeps/unix/sysv/linux/raise.c:64
      #5  0x00007fd704f99b8b in __GI_abort () at abort.c:91
      #6  0x00007fd704f8f0ee in __assert_fail_base (fmt=<optimised out>, assertion=0xdab5e8 "status_var.memory_used == 0", file=0xdab320 "10.0-base-explain-slowquerylog/sql/sql_class.cc", line=<optimised out>, function=<optimised out>) at assert.c:94
      #7  0x00007fd704f8f192 in __GI___assert_fail (assertion=0xdab5e8 "status_var.memory_used == 0", file=0xdab320 "10.0-base-explain-slowquerylog/sql/sql_class.cc", line=1498, function=0xdad270 "virtual THD::~THD()") at assert.c:103
      #8  0x00000000005e5638 in THD::~THD (this=0x48cedb8, __in_chrg=<optimised out>) at 10.0-base-explain-slowquerylog/sql/sql_class.cc:1498
      #9  0x00000000005e579a in THD::~THD (this=0x48cedb8, __in_chrg=<optimised out>) at 10.0-base-explain-slowquerylog/sql/sql_class.cc:1503
      #10 0x00000000005692c9 in unlink_thd (thd=0x48cedb8) at 10.0-base-explain-slowquerylog/sql/mysqld.cc:2571
      #11 0x0000000000569688 in one_thread_per_connection_end (thd=0x48cedb8, put_in_cache=true) at 10.0-base-explain-slowquerylog/sql/mysqld.cc:2687
      #12 0x000000000073daed in do_handle_one_connection (thd_arg=0x48cedb8) at 10.0-base-explain-slowquerylog/sql/sql_connect.cc:1277
      #13 0x000000000073d7b5 in handle_one_connection (arg=0x48cedb8) at 10.0-base-explain-slowquerylog/sql/sql_connect.cc:1181
      #14 0x00007fd705d5fe9a in start_thread (arg=0x7fd70662b700) at pthread_create.c:308
      #15 0x00007fd705053cbd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112

      --connect (con1,localhost,root,,)
      --error ER_NO_SUCH_TABLE
      ALTER TABLE nonexisting ENABLE KEYS;
      SHOW WARNINGS;
      --disconnect con1
      --connection default
      SELECT 1;

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            Assignee:
            psergey Sergei Petrunia
            Reporter:
            elenst Elena Stepanova
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              Dates

              Created:
              Updated:
              Resolved: