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  1. MariaDB Server
  2. MDEV-14943

Assertion `block->type == PAGECACHE_EMPTY_PAGE || block->type == type || type == PAGECACHE_LSN_PAGE || type == PAGECACHE_READ_UNKNOWN_PAGE || block->type == PAGECACHE_READ_UNKNOWN_PAGE' failed in pagecache_read upon CREATE ... SELECT from Aria table

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      Note: the test case is suspiciously similar to MDEV-15878, although the assertion failure, stack trace and non-debug results are different.

      CREATE TABLE t1 (f INT) ENGINE=Aria;
      INSERT INTO t1 VALUES (1),(2);
      --error ER_BAD_FIELD_ERROR
      ALTER TABLE t1 ORDER BY unknown_column;
      CREATE TABLE t2 SELECT * FROM t1;
       
      # Cleanup
      DROP TABLE t1, t2;
      

      10.0 400a8eb60f83

      mysqld: /data/src/10.0/storage/maria/ma_pagecache.c:3426: pagecache_read: Assertion `block->type == PAGECACHE_EMPTY_PAGE || block->type == type || type == PAGECACHE_LSN_PAGE || type == PAGECACHE_READ_UNKNOWN_PAGE || block->type == PAGECACHE_READ_UNKNOWN_PAGE' failed.
      180416 14:20:35 [ERROR] mysqld got signal 6 ;
       
      #7  0x00007f304e33fee2 in __assert_fail () from /lib/x86_64-linux-gnu/libc.so.6
      #8  0x0000000000a12f23 in pagecache_read (pagecache=0x202ffc0 <maria_pagecache_var>, file=0x7f3046b5c4a0, pageno=1, level=0, buff=0x7f304694a070 '\245' <repeats 200 times>..., type=PAGECACHE_PLAIN_PAGE, lock=PAGECACHE_LOCK_LEFT_UNLOCKED, page_link=0x7f305040e5f8) at /data/src/10.0/storage/maria/ma_pagecache.c:3422
      #9  0x0000000000a4e4cc in _ma_scan_block_record (info=0x7f3046b5c070, record=0x7f3046827a88 "\377", record_pos=0, skip_deleted=1 '\001') at /data/src/10.0/storage/maria/ma_blockrec.c:5462
      #10 0x0000000000a3c4a5 in maria_scan (info=0x7f3046b5c070, record=0x7f3046827a88 "\377") at /data/src/10.0/storage/maria/ma_scan.c:54
      #11 0x00000000009ed794 in ha_maria::rnd_next (this=0x7f304687d888, buf=0x7f3046827a88 "\377") at /data/src/10.0/storage/maria/ha_maria.cc:2459
      #12 0x000000000083f7be in handler::ha_rnd_next (this=0x7f304687d888, buf=0x7f3046827a88 "\377") at /data/src/10.0/sql/handler.cc:2625
      #13 0x00000000009701f9 in rr_sequential (info=0x7f304694dc28) at /data/src/10.0/sql/records.cc:470
      #14 0x00000000006af8cd in join_init_read_record (tab=0x7f304694db80) at /data/src/10.0/sql/sql_select.cc:18877
      #15 0x00000000006ad7eb in sub_select (join=0x7f30468fb148, join_tab=0x7f304694db80, end_of_records=false) at /data/src/10.0/sql/sql_select.cc:17971
      #16 0x00000000006ad0c0 in do_select (join=0x7f30468fb148, fields=0x7f30482a6210, table=0x0, procedure=0x0) at /data/src/10.0/sql/sql_select.cc:17636
      #17 0x0000000000689e4b in JOIN::exec_inner (this=0x7f30468fb148) at /data/src/10.0/sql/sql_select.cc:3108
      #18 0x0000000000687308 in JOIN::exec (this=0x7f30468fb148) at /data/src/10.0/sql/sql_select.cc:2394
      #19 0x000000000068a6aa in mysql_select (thd=0x7f30482a2070, rref_pointer_array=0x7f30482a63a0, tables=0x7f30468fa8b0, wild_num=1, fields=..., conds=0x0, og_num=0, order=0x0, group=0x0, having=0x0, proc_param=0x0, select_options=2416184064, result=0x7f30468fb068, unit=0x7f30482a5a08, select_lex=0x7f30482a60f8) at /data/src/10.0/sql/sql_select.cc:3333
      #20 0x0000000000680908 in handle_select (thd=0x7f30482a2070, lex=0x7f30482a5940, result=0x7f30468fb068, setup_tables_done_option=0) at /data/src/10.0/sql/sql_select.cc:377
      #21 0x000000000064e6c7 in mysql_execute_command (thd=0x7f30482a2070) at /data/src/10.0/sql/sql_parse.cc:3008
      #22 0x0000000000657d16 in mysql_parse (thd=0x7f30482a2070, rawbuf=0x7f30468fa088 "CREATE TABLE t2 SELECT * FROM t1", length=32, parser_state=0x7f305040f640) at /data/src/10.0/sql/sql_parse.cc:6569
      #23 0x000000000064a855 in dispatch_command (command=COM_QUERY, thd=0x7f30482a2070, packet=0x7f30497e5071 "CREATE TABLE t2 SELECT * FROM t1", packet_length=32) at /data/src/10.0/sql/sql_parse.cc:1296
      #24 0x0000000000649b55 in do_command (thd=0x7f30482a2070) at /data/src/10.0/sql/sql_parse.cc:999
      #25 0x0000000000769e24 in do_handle_one_connection (thd_arg=0x7f30482a2070) at /data/src/10.0/sql/sql_connect.cc:1377
      #26 0x0000000000769b96 in handle_one_connection (arg=0x7f30482a2070) at /data/src/10.0/sql/sql_connect.cc:1292
      #27 0x0000000000aca772 in pfs_spawn_thread (arg=0x7f30481a2370) at /data/src/10.0/storage/perfschema/pfs.cc:1861
      #28 0x00007f3050043494 in start_thread (arg=0x7f3050410700) at pthread_create.c:333
      #29 0x00007f304e3fc93f in clone () from /lib/x86_64-linux-gnu/libc.so.6
      

      Reproducible on 10.0-10.3. Not reproducible on 5.5.
      No visible effect on a non-debug build.

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            monty Michael Widenius
            elenst Elena Stepanova
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              Updated:
              Resolved:

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