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  1. MariaDB Server
  2. MDEV-17991

[Draft] SIGSEGV in Lex_input_stream::body_utf8_start after OOM

    Details

    • Type: Bug
    • Status: Open (View Workflow)
    • Priority: Minor
    • Resolution: Unresolved
    • Affects Version/s: 10.1, 10.2, 10.3
    • Fix Version/s: None
    • Component/s: Parser, Server
    • Labels:
      None

      Description

      Note: I'm not going to pursue it now since it probably wouldn't be a priority for fixing anyway (doesn't matter one way or another server crashes upon OOM); but it might be useful for searching purposes, and besides we might want to get back to it some time in future.

      https://travis-ci.org/elenst/travis-tests/jobs/466795082

      elenst-dev 355fc65bef8caec4cde7149e9c534ca37cd996c7

      perl ./runall-new.pl --basedir=/home/travis/server --vardir=/home/travis/logs/vardir --duration=350 --threads=6 --seed=1544626934 --reporters=Backtrace,ErrorLog,Deadlock --validators=TransformerNoComparator --views --redefine=conf/mariadb/alter_table.yy --redefine=conf/mariadb/sp.yy --redefine=conf/mariadb/bulk_insert.yy --mysqld=--log_output=FILE --mysqld=--max-statement-time=30 --mysqld=--lock-wait-timeout=10 --mysqld=--loose-innodb-lock-wait-timeout=5 --mysqld=--loose-debug_assert_on_not_freed_memory=0 --grammar=conf/replication/replication-dml_sql.yy --gendata=conf/replication/replication-dml_data.zz --mysqld=--log_bin_trust_function_creators=1 --grammar=conf/replication/replication-dml_sql.yy --gendata=conf/replication/replication-dml_data.zz --mysqld=--log-bin --transformers=ExecuteAsDeleteReturning,ExecuteAsInsertSelect,ExecuteAsUnion,ExecuteAsUpdateDelete,ExecuteAsView,ExecuteAsPreparedTwice --redefine=conf/mariadb/general-workarounds.yy
      

      10.1 f77f8f6d1a5f4846766a8aab00a9e1e5f41909a1

      2018-12-12 15:05:34 140481337395968 [ERROR] InnoDB: The total blob data length (16776438) is greater than 10% of the total redo log size (100663296). Please increase total redo log size.
      2018-12-12 15:05:56 140481337092864 [ERROR] mysqld: Out of memory (Needed 100665080 bytes)
      2018-12-12 15:05:56 140481337092864 [ERROR] Out of memory; check if mysqld or some other process uses all available memory; if not, you may have to use 'ulimit' to allow mysqld to use more memory or you can add more swap space
      181212 15:05:56 [ERROR] mysqld got signal 11 ;
       
      #3  <signal handler called>
      #4  0x000055ae1089190c in Lex_input_stream::body_utf8_start (this=0x7fc45c319738, thd=0x55ae14613750, begin_ptr=0x7fc3e40000f2 "BEGIN ", '\245' <repeats 194 times>...) at /home/travis/src/sql/sql_lex.cc:331
      #5  0x000055ae10c3b1e9 in sp_head::set_body_start (this=0x7fc42803ac78, thd=0x55ae14613750, begin_ptr=0x7fc3e40000f2 "BEGIN ", '\245' <repeats 194 times>...) at /home/travis/src/sql/sp_head.cc:717
      #6  0x000055ae10aa2382 in MYSQLparse (thd=0x55ae14613750) at /home/travis/src/sql/sql_yacc.yy:16144
      #7  0x000055ae108b8058 in parse_sql (thd=0x55ae14613750, parser_state=0x7fc45c319730, creation_ctx=0x7fc4280f8350, do_pfs_digest=false) at /home/travis/src/sql/sql_parse.cc:9442
      #8  0x000055ae10c34a80 in sp_compile (thd=0x55ae14613750, defstr=0x7fc45c3199c0, sql_mode=1342177280, creation_ctx=0x7fc4280f8350) at /home/travis/src/sql/sp.cc:754
      #9  0x000055ae10c34ecb in db_load_routine (thd=0x55ae14613750, type=TYPE_ENUM_PROCEDURE, name=0x7fc45c31b5d0, sphp=0x7fc45c31b7f8, sql_mode=1342177280, params=0x55ae112f3828 "", returns=0x55ae112f3828 "", body=0x7fc4282847d8 "BEGIN /* BEGIN 1 */ COMMIT ; INSERT INTO test.table0_myisam_int_autoinc /* table0 table0_myisam table1_innodb */ ( `col_varchar_utf8`, col_tinyint ) VALUES ( 'trust tip estate instead united better ca"..., chistics=..., definer_user_name=0x7fc45c31b090, definer_host_name=0x7fc45c31b0a0, created=20181212150548, modified=20181212150548, creation_ctx=0x7fc4280f8350) at /home/travis/src/sql/sp.cc:880
      #10 0x000055ae10c3481f in db_find_routine (thd=0x55ae14613750, type=TYPE_ENUM_PROCEDURE, name=0x7fc45c31b5d0, sphp=0x7fc45c31b7f8) at /home/travis/src/sql/sp.cc:670
      #11 0x000055ae10c38869 in sp_cache_routine (thd=0x55ae14613750, type=TYPE_ENUM_PROCEDURE, name=0x7fc45c31b5d0, lookup_only=false, sp=0x7fc45c31b7f8) at /home/travis/src/sql/sp.cc:2151
      #12 0x000055ae10c386c3 in sp_cache_routine (thd=0x55ae14613750, rt=0x7fc42805c9e8, lookup_only=false, sp=0x7fc45c31b7f8) at /home/travis/src/sql/sp.cc:2104
      #13 0x000055ae1083fa96 in open_and_process_routine (thd=0x55ae14613750, prelocking_ctx=0x7fc428158660, rt=0x7fc42805c9e8, prelocking_strategy=0x7fc45c31ba20, has_prelocking_list=false, ot_ctx=0x7fc45c31b910, need_prelocking=0x7fc45c31b8af, routine_modifies_data=0x7fc45c31b8b0) at /home/travis/src/sql/sql_base.cc:3882
      #14 0x000055ae108412e7 in open_tables (thd=0x55ae14613750, options=..., start=0x7fc45c31b988, counter=0x7fc45c31b9a4, flags=0, prelocking_strategy=0x7fc45c31ba20) at /home/travis/src/sql/sql_base.cc:4712
      #15 0x000055ae10842849 in open_and_lock_tables (thd=0x55ae14613750, options=..., tables=0x0, derived=true, flags=0, prelocking_strategy=0x7fc45c31ba20) at /home/travis/src/sql/sql_base.cc:5385
      #16 0x000055ae10835ab1 in open_and_lock_tables (thd=0x55ae14613750, tables=0x0, derived=true, flags=0) at /home/travis/src/sql/sql_base.h:544
      #17 0x000055ae108adec1 in mysql_execute_command (thd=0x55ae14613750) at /home/travis/src/sql/sql_parse.cc:5267
      #18 0x000055ae10c4120e in sp_instr_stmt::exec_core (this=0x7fc42805cbb0, thd=0x55ae14613750, nextp=0x7fc45c31c5e4) at /home/travis/src/sql/sp_head.cc:3218
      #19 0x000055ae10c40906 in sp_lex_keeper::reset_lex_and_exec_core (this=0x7fc42805cbf0, thd=0x55ae14613750, nextp=0x7fc45c31c5e4, open_tables=false, instr=0x7fc42805cbb0) at /home/travis/src/sql/sp_head.cc:2984
      #20 0x000055ae10c40ed8 in sp_instr_stmt::execute (this=0x7fc42805cbb0, thd=0x55ae14613750, nextp=0x7fc45c31c5e4) at /home/travis/src/sql/sp_head.cc:3134
      #21 0x000055ae10c3c776 in sp_head::execute (this=0x7fc42805bbf8, thd=0x55ae14613750, merge_da_on_success=true) at /home/travis/src/sql/sp_head.cc:1315
      #22 0x000055ae10c3e5f6 in sp_head::execute_procedure (this=0x7fc42805bbf8, thd=0x55ae14613750, args=0x55ae14617f18) at /home/travis/src/sql/sp_head.cc:2102
      #23 0x000055ae108a4dad in do_execute_sp (thd=0x55ae14613750, sp=0x7fc42805bbf8) at /home/travis/src/sql/sql_parse.cc:2426
      #24 0x000055ae108ae01e in mysql_execute_command (thd=0x55ae14613750) at /home/travis/src/sql/sql_parse.cc:5300
      #25 0x000055ae108b3fec in mysql_parse (thd=0x55ae14613750, rawbuf=0x7fc428005328 "CALL sp_grammar1 /* QNO 2191 CON_ID 12 */", length=41, parser_state=0x7fc45c31d630) at /home/travis/src/sql/sql_parse.cc:7467
      #26 0x000055ae108a284a in dispatch_command (command=COM_QUERY, thd=0x55ae14613750, packet=0x7fc4292a6b61 "CALL sp_grammar1 /* QNO 2191 CON_ID 12 */ ", packet_length=42) at /home/travis/src/sql/sql_parse.cc:1495
      #27 0x000055ae108a15ca in do_command (thd=0x55ae14613750) at /home/travis/src/sql/sql_parse.cc:1124
      #28 0x000055ae109dcff4 in do_handle_one_connection (thd_arg=0x55ae14613750) at /home/travis/src/sql/sql_connect.cc:1330
      #29 0x000055ae109dcd58 in handle_one_connection (arg=0x55ae14613750) at /home/travis/src/sql/sql_connect.cc:1242
      #30 0x00007fc4741a5184 in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
      #31 0x00007fc4738c7ffd in clone () from /lib/x86_64-linux-gnu/libc.so.6
       
      Some pointers may be invalid and cause the dump to abort.
      Query (0x7fc4280f8228): CALL sp_grammar
      Connection ID (thread ID): 12
      Status: NOT_KILLED
      Optimizer switch: index_merge=on,index_merge_union=on,index_merge_sort_union=on,index_merge_intersection=on,index_merge_sort_intersection=off,engine_condition_pushdown=off,index_condition_pushdown=on,derived_merge=on,derived_with_keys=on,firstmatch=on,loosescan=on,materialization=on,in_to_exists=on,semijoin=on,partial_match_rowid_merge=on,partial_match_table_scan=on,subquery_cache=on,mrr=off,mrr_cost_based=off,mrr_sort_keys=off,outer_join_with_cache=on,semijoin_with_cache=on,join_cache_incremental=on,join_cache_hashed=on,join_cache_bka=on,optimize_join_buffer_size=off,table_elimination=on,extended_keys=on,exists_to_in=on,orderby_uses_equalities=off
      

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            • Assignee:
              elenst Elena Stepanova
              Reporter:
              elenst Elena Stepanova
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              • Created:
                Updated: