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  1. MariaDB Server
  2. MDEV-677

LP:635691 - OQGraph valgrind warnings when running a Random Query Generator test

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      When running a RQG test under valgrind against Maria 5.2, the following valgrind warnings were reported:

      ==6713== Conditional jump or move depends on uninitialised value(s)
      ==6713==    at 0x4E3427E: open_query::oqgraph::modify_edge(open_query::oqgraph::current_row_st, unsigned long long*, unsigned long long*, double*, bool) (graphcore.cc:648)
      ==6713==    by 0x4E2C47D: ha_oqgraph::update_row(unsigned char const*, unsigned char*) (ha_oqgraph.cc:545)
      ==6713==    by 0x83AA698: handler::ha_update_row(unsigned char const*, unsigned char*) (handler.cc:4869)
      ==6713==    by 0x832D9B5: mysql_update(THD*, TABLE_LIST*, List<Item>&, List<Item>&, Item*, unsigned int, st_order*, unsigned long long, enum_duplicates, bool) (sql_update.cc:652)
      ==6713==    by 0x8282B3C: mysql_execute_command(THD*) (sql_parse.cc:3120)
      ==6713==    by 0x828BB46: mysql_parse(THD*, char const*, unsigned int, char const**) (sql_parse.cc:6055)
      ==6713==    by 0x827DCA6: dispatch_command(enum_server_command, THD*, char*, unsigned int) (sql_parse.cc:1204)
      ==6713==    by 0x827D102: do_command(THD*) (sql_parse.cc:898)
      ==6713==    by 0x827A1EB: handle_one_connection (sql_connect.cc:1154)
      ==6713==    by 0xBEA918: start_thread (in /lib/libpthread-2.12.so)
      ==6713==    by 0xB2CCBD: clone (in /lib/libc-2.12.so)
      ==6713==
      ==6713== Conditional jump or move depends on uninitialised value(s)
      ==6713==    at 0x4E34732: open_query::oqgraph::insert_edge(unsigned long long, unsigned long long, double, bool) (graphcore.cc:558)
      ==6713==    by 0x4E2BE63: ha_oqgraph::write_row(unsigned char*) (ha_oqgraph.cc:463)
      ==6713==    by 0x83AA526: handler::ha_write_row(unsigned char*) (handler.cc:4846)
      ==6713==    by 0x8318C31: write_record(THD*, st_table*, st_copy_info*) (sql_insert.cc:1638)
      ==6713==    by 0x831CE56: select_insert::send_data(List<Item>&) (sql_insert.cc:3223)
      ==6713==    by 0x8305EC2: end_send(JOIN*, st_join_table*, bool) (sql_select.cc:12612)
      ==6713==    by 0x83040C7: evaluate_join_record(JOIN*, st_join_table*, int) (sql_select.cc:11788)
      ==6713==    by 0x8303D4A: sub_select(JOIN*, st_join_table*, bool) (sql_select.cc:11660)
      ==6713==    by 0x83038AA: do_select(JOIN*, List<Item>*, st_table*, Procedure*) (sql_select.cc:11416)
      ==6713==    by 0x82ECB8F: JOIN::exec() (sql_select.cc:2328)
      ==6713==    by 0x82ED2AC: mysql_select(THD*, Item***, TABLE_LIST*, unsigned int, List<Item>&, Item*, unsigned int, st_order*, st_order*, Item*, st_order*, unsigned long long, select_result*, st_select_lex_unit*, st_select_lex*) (sql_select.cc:2528)
      ==6713==    by 0x82E5B40: handle_select(THD*, st_lex*, select_result*, unsigned long) (sql_select.cc:280)
      ==6713==    by 0x82833D6: mysql_execute_command(THD*) (sql_parse.cc:3290)
      ==6713==    by 0x828BB46: mysql_parse(THD*, char const*, unsigned int, char const**) (sql_parse.cc:6055)
      ==6713==    by 0x827DCA6: dispatch_command(enum_server_command, THD*, char*, unsigned int) (sql_parse.cc:1204)
      ==6713==    by 0x827D102: do_command(THD*) (sql_parse.cc:898)
      ==6713==
      ==6713== Conditional jump or move depends on uninitialised value(s)
      ==6713==    at 0x4E2BEC3: ha_oqgraph::write_row(unsigned char*) (ha_oqgraph.cc:468)
      ==6713==    by 0x83AA526: handler::ha_write_row(unsigned char*) (handler.cc:4846)
      ==6713==    by 0x8318C31: write_record(THD*, st_table*, st_copy_info*) (sql_insert.cc:1638)
      ==6713==    by 0x831CE56: select_insert::send_data(List<Item>&) (sql_insert.cc:3223)
      ==6713==    by 0x8305EC2: end_send(JOIN*, st_join_table*, bool) (sql_select.cc:12612)
      ==6713==    by 0x83040C7: evaluate_join_record(JOIN*, st_join_table*, int) (sql_select.cc:11788)
      ==6713==    by 0x8303D4A: sub_select(JOIN*, st_join_table*, bool) (sql_select.cc:11660)
      ==6713==    by 0x83038AA: do_select(JOIN*, List<Item>*, st_table*, Procedure*) (sql_select.cc:11416)
      ==6713==    by 0x82ECB8F: JOIN::exec() (sql_select.cc:2328)
      ==6713==    by 0x82ED2AC: mysql_select(THD*, Item***, TABLE_LIST*, unsigned int, List<Item>&, Item*, unsigned int, st_order*, st_order*, Item*, st_order*, unsigned long long, select_result*, st_select_lex_unit*, st_select_lex*) (sql_select.cc:2528)
      ==6713==    by 0x82E5B40: handle_select(THD*, st_lex*, select_result*, unsigned long) (sql_select.cc:280)
      ==6713==    by 0x82833D6: mysql_execute_command(THD*) (sql_parse.cc:3290)
      ==6713==    by 0x828BB46: mysql_parse(THD*, char const*, unsigned int, char const**) (sql_parse.cc:6055)
      ==6713==    by 0x827DCA6: dispatch_command(enum_server_command, THD*, char*, unsigned int) (sql_parse.cc:1204)
      ==6713==    by 0x827D102: do_command(THD*) (sql_parse.cc:898)
      ==6713==    by 0x827A1EB: handle_one_connection (sql_connect.cc:1154)

      bzr version-info:

      revision-id: <email address hidden>
      date: 2010-08-26 16:20:27 +0300
      build-date: 2010-09-11 14:52:18 +0300
      revno: 2849
      branch-nick: maria-5.2

      The test case will be uploaded shortly

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            Assignee:
            arjen Arjen Lentz
            Reporter:
            philipstoev Philip Stoev (Inactive)
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