[MDEV-14762] Server crashes in MDL_ticket::has_stronger_or_equal_type upon inserting into temporary sequence Created: 2017-12-25  Updated: 2018-04-05  Resolved: 2018-04-05

Status: Closed
Project: MariaDB Server
Component/s: Sequences, Storage Engine - InnoDB
Affects Version/s: 10.3
Fix Version/s: 10.3.6

Type: Bug Priority: Critical
Reporter: Elena Stepanova Assignee: Michael Widenius
Resolution: Fixed Votes: 0
Labels: affects-tests


 Description   

--source include/have_innodb.inc
CREATE TEMPORARY SEQUENCE s ENGINE=InnoDB;
INSERT INTO s VALUES (1, 1, 1000, 1, 1, 1, 1, 0);

10.3 1761e382088b3

#3  <signal handler called>
#4  0x0000561c1d437ea5 in MDL_ticket::has_stronger_or_equal_type (this=0x0, type=MDL_EXCLUSIVE) at /data/src/10.3/sql/mdl.cc:1721
#5  0x0000561c1d439324 in MDL_context::upgrade_shared_lock (this=0x7fe520000c00, mdl_ticket=0x0, new_type=MDL_EXCLUSIVE, lock_wait_timeout=86400) at /data/src/10.3/sql/mdl.cc:2329
#6  0x0000561c1dd559cb in ha_sequence::write_row (this=0x7fe52011fc08, buf=0x7fe520120108 "\377\001") at /data/src/10.3/sql/ha_sequence.cc:240
#7  0x0000561c1d5b7d75 in handler::ha_write_row (this=0x7fe52011fc08, buf=0x7fe520120108 "\377\001") at /data/src/10.3/sql/handler.cc:6196
#8  0x0000561c1d2ab739 in write_record (thd=0x7fe520000b00, table=0x7fe520189900, info=0x7fe56c22c3b0) at /data/src/10.3/sql/sql_insert.cc:1932
#9  0x0000561c1d2a90c2 in mysql_insert (thd=0x7fe520000b00, table_list=0x7fe520014c68, fields=..., values_list=..., update_fields=..., update_values=..., duplic=DUP_ERROR, ignore=false) at /data/src/10.3/sql/sql_insert.cc:1060
#10 0x0000561c1d2ddf0e in mysql_execute_command (thd=0x7fe520000b00) at /data/src/10.3/sql/sql_parse.cc:4696
#11 0x0000561c1d2e853a in mysql_parse (thd=0x7fe520000b00, rawbuf=0x7fe520014b58 "INSERT INTO s VALUES (1, 1, 1000, 1, 1, 1, 1, 0)", length=48, parser_state=0x7fe56c22d610, is_com_multi=false, is_next_command=false) at /data/src/10.3/sql/sql_parse.cc:7966
#12 0x0000561c1d2d5eaf in dispatch_command (command=COM_QUERY, thd=0x7fe520000b00, packet=0x7fe52000b061 "INSERT INTO s VALUES (1, 1, 1000, 1, 1, 1, 1, 0)", packet_length=48, is_com_multi=false, is_next_command=false) at /data/src/10.3/sql/sql_parse.cc:1824
#13 0x0000561c1d2d48e3 in do_command (thd=0x7fe520000b00) at /data/src/10.3/sql/sql_parse.cc:1369
#14 0x0000561c1d42e35a in do_handle_one_connection (connect=0x561c20c5c0e0) at /data/src/10.3/sql/sql_connect.cc:1420
#15 0x0000561c1d42e0e7 in handle_one_connection (arg=0x561c20c5c0e0) at /data/src/10.3/sql/sql_connect.cc:1326
#16 0x0000561c1d8bb1e6 in pfs_spawn_thread (arg=0x561c20bb62a0) at /data/src/10.3/storage/perfschema/pfs.cc:1863
#17 0x00007fe5762fe494 in start_thread (arg=0x7fe56c22e700) at pthread_create.c:333
#18 0x00007fe5746e493f in clone () from /lib/x86_64-linux-gnu/libc.so.6



 Comments   
Comment by Michael Widenius [ 2018-04-05 ]

Fix is to not upgrade MDL locks for temporary tables

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