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  1. MariaDB Server
  2. MDEV-15871

Assertion `ptr' failed in ut_align_down

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      Note: I've had this assertion failure during testing for MDEV-11369, and there was a non-deterministic test case. It was assumed to be fixed, and I indeed can't reproduce it anymore with the test case provided in MDEV-11369, but the failure happened on the recent 10.3 at least 3 times: once in travis, once on my machine while I was trying to reproduce, and once on perro while creating a shareable coredump.

      10.3 95811f01f34705e

      mysqld: /data/src/10.3/storage/innobase/include/ut0byte.ic:109: void* ut_align_down(const void*, ulint): Assertion `ptr' failed.
      180415  5:17:17 [ERROR] mysqld got signal 6 ;
       
      #7  0x00007f89c4beeee2 in __assert_fail () from /lib/x86_64-linux-gnu/libc.so.6
      #8  0x0000561014e8b12b in ut_align_down (ptr=0x0, align_no=16384) at /data/src/10.3/storage/innobase/include/ut0byte.ic:109
      #9  0x0000561014eb8b45 in page_align (ptr=0x0) at /data/src/10.3/storage/innobase/include/page0page.h:213
      #10 0x0000561014ec5d27 in page_rec_check (rec=0x0) at /data/src/10.3/storage/innobase/include/page0page.ic:537
      #11 0x0000561014ee2c0e in page_rec_is_supremum (rec=0x0) at /data/src/10.3/storage/innobase/include/page0page.ic:296
      #12 0x000056101511e741 in btr_search_build_page_hash_index (index=0x7f89500b2d28, block=0x7f899fb7e500, ahi_latch=0x561018a56380, n_fields=1, n_bytes=0, left_side=0) at /data/src/10.3/storage/innobase/btr/btr0sea.cc:1445
      #13 0x000056101511f387 in btr_search_move_or_delete_hash_entries (new_block=0x7f899fb7e500, block=0x7f899fbb3c00) at /data/src/10.3/storage/innobase/btr/btr0sea.cc:1641
      #14 0x0000561014f793b6 in page_copy_rec_list_start (new_block=0x7f899fb7e500, block=0x7f899fbb3c00, rec=0x7f89a24531e4 "\200", index=0x7f89500b2d28, mtr=0x7f89ad071b50) at /data/src/10.3/storage/innobase/page/page0page.cc:945
      #15 0x0000561014f7a64e in page_move_rec_list_start (new_block=0x7f899fb7e500, block=0x7f899fbb3c00, split_rec=0x7f89a24531e4 "\200", index=0x7f89500b2d28, mtr=0x7f89ad071b50) at /data/src/10.3/storage/innobase/page/page0page.cc:1403
      #16 0x00005610150dd960 in btr_page_split_and_insert (flags=0, cursor=0x7f89ad071730, offsets=0x7f89ad0716c8, heap=0x7f89ad0716c0, tuple=0x7f8934148f08, n_ext=0, mtr=0x7f89ad071b50) at /data/src/10.3/storage/innobase/btr/btr0btr.cc:3149
      #17 0x000056101510077a in btr_cur_pessimistic_insert (flags=0, cursor=0x7f89ad071730, offsets=0x7f89ad0716c8, heap=0x7f89ad0716c0, entry=0x7f8934148f08, rec=0x7f89ad0716d0, big_rec=0x7f89ad0716b8, n_ext=0, thr=0x7f89341768e0, mtr=0x7f89ad071b50) at /data/src/10.3/storage/innobase/btr/btr0cur.cc:3480
      #18 0x0000561014fd0783 in row_ins_clust_index_entry_low (flags=0, mode=33, index=0x7f89500b2d28, n_uniq=1, entry=0x7f8934148f08, n_ext=0, thr=0x7f89341768e0, dup_chk_only=false) at /data/src/10.3/storage/innobase/row/row0ins.cc:2768
      #19 0x0000561014fd1f7e in row_ins_clust_index_entry (index=0x7f89500b2d28, entry=0x7f8934148f08, thr=0x7f89341768e0, n_ext=0, dup_chk_only=false) at /data/src/10.3/storage/innobase/row/row0ins.cc:3268
      #20 0x0000561015056207 in row_upd_clust_rec_by_insert (node=0x7f8934176218, index=0x7f89500b2d28, thr=0x7f89341768e0, referenced=0, foreign=false, mtr=0x7f89ad0726b0) at /data/src/10.3/storage/innobase/row/row0upd.cc:2789
      #21 0x00005610150576e0 in row_upd_clust_step (node=0x7f8934176218, thr=0x7f89341768e0) at /data/src/10.3/storage/innobase/row/row0upd.cc:3211
      #22 0x00005610150579ff in row_upd (node=0x7f8934176218, thr=0x7f89341768e0) at /data/src/10.3/storage/innobase/row/row0upd.cc:3282
      #23 0x0000561015057eee in row_upd_step (thr=0x7f89341768e0) at /data/src/10.3/storage/innobase/row/row0upd.cc:3426
      #24 0x0000561014ff45d6 in row_update_for_mysql (prebuilt=0x7f8934175698) at /data/src/10.3/storage/innobase/row/row0mysql.cc:1882
      #25 0x0000561014e9f2e4 in ha_innobase::update_row (this=0x7f8934160188, old_row=0x7f893416edf0 "", new_row=0x7f893416d9a8 "") at /data/src/10.3/storage/innobase/handler/ha_innodb.cc:8838
      #26 0x0000561014b8d1b9 in handler::ha_update_row (this=0x7f8934160188, old_data=0x7f893416edf0 "", new_data=0x7f893416d9a8 "") at /data/src/10.3/sql/handler.cc:6229
      #27 0x00005610152e8c28 in ha_partition::update_row (this=0x7f893415f0d8, old_data=0x7f893416edf0 "", new_data=0x7f893416d9a8 "") at /data/src/10.3/sql/ha_partition.cc:4364
      #28 0x0000561014b8d1b9 in handler::ha_update_row (this=0x7f893415f0d8, old_data=0x7f893416edf0 "", new_data=0x7f893416d9a8 "") at /data/src/10.3/sql/handler.cc:6229
      #29 0x000056101499472f in mysql_update (thd=0x7f8934000b00, table_list=0x7f8934013d10, fields=..., values=..., conds=0x7f8934014b60, order_num=0, order=0x0, limit=18446744073709551615, handle_duplicates=DUP_ERROR, ignore=false, found_return=0x7f89ad073720, updated_return=0x7f89ad0737e0) at /data/src/10.3/sql/sql_update.cc:943
      #30 0x000056101489fd38 in mysql_execute_command (thd=0x7f8934000b00) at /data/src/10.3/sql/sql_parse.cc:4578
      #31 0x00005610148aaad8 in mysql_parse (thd=0x7f8934000b00, rawbuf=0x7f8934013a28 "UPDATE `view_table100_innodb_key_pk_parts_2_int_autoinc` SET `pk` = REPEAT( _ASCII 0xA, 70 ) WHERE `col_varchar_255_utf8` < REPEAT( _UCS2 0x43, 121 )  /* QNO 2211 CON_ID 20 */", length=175, parser_state=0x7f89ad074620, is_com_multi=false, is_next_command=false) at /data/src/10.3/sql/sql_parse.cc:8001
      #32 0x00005610148982bb in dispatch_command (command=COM_QUERY, thd=0x7f8934000b00, packet=0x7f893400b261 "UPDATE `view_table100_innodb_key_pk_parts_2_int_autoinc` SET `pk` = REPEAT( _ASCII 0xA, 70 ) WHERE `col_varchar_255_utf8` < REPEAT( _UCS2 0x43, 121 )  /* QNO 2211 CON_ID 20 */ ", packet_length=176, is_com_multi=false, is_next_command=false) at /data/src/10.3/sql/sql_parse.cc:1846
      #33 0x0000561014896cfa in do_command (thd=0x7f8934000b00) at /data/src/10.3/sql/sql_parse.cc:1391
      #34 0x00005610149f978b in do_handle_one_connection (connect=0x561018df9110) at /data/src/10.3/sql/sql_connect.cc:1402
      #35 0x00005610149f9518 in handle_one_connection (arg=0x561018df9110) at /data/src/10.3/sql/sql_connect.cc:1308
      #36 0x00007f89c68c5494 in start_thread (arg=0x7f89ad075700) at pthread_create.c:333
      #37 0x00007f89c4cab93f in clone () from /lib/x86_64-linux-gnu/libc.so.6
      

      perl ./runall-trials.pl --trials=50 --duration=700 --threads=6 --seed=1523728641 --reporters=Backtrace,ErrorLog,Deadlock --validators=TransformerNoComparator --transformers=ConvertSubqueriesToViews,ConvertTablesToDerived,Count,DisableOptimizations,Distinct,EnableOptimizations,ExecuteAsCTE,ExecuteAsDeleteReturning,ExecuteAsDerived,ExecuteAsExcept,ExecuteAsExecuteImmediate,ExecuteAsInsertSelect,ExecuteAsIntersect,ExecuteAsSelectItem,ExecuteAsUnion,ExecuteAsUpdateDelete,ExecuteAsView,ExecuteAsWhereSubquery,Having,InlineSubqueries,LimitRowsExamined,OrderBy,StraightJoin,ExecuteAsPreparedTwice,ExecuteAsTrigger,ExecuteAsSPTwice,ExecuteAsFunctionTwice --redefine=conf/mariadb/general-workarounds.yy --mysqld=--log_output=FILE --mysqld=--log_bin_trust_function_creators=1 --mysqld=--log-bin --mysqld=--max-statement-time=30 --mysqld=--loose-debug_assert_on_not_freed_memory=0 --views --redefine=conf/mariadb/versioning.yy --basedir=/data/bld/10.3 --grammar=conf/engines/many_indexes.yy --gendata=conf/engines/many_indexes.zz --engine=InnoDB --vardir=/data/logs/travis1
      

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          Elena Stepanova

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              marko Marko Mäkelä
              elenst Elena Stepanova
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