abort (sig=6) in my_free on SHOW CREATE TABLE

[Roel Van de Paar]

(Error log frame excerpt in title is just for easy finding in Google)

Thread 1 (Thread 0x7f46067d0700 (LWP 5538)):
+bt
#0 0x00007f463d95c771 in pthread_kill () from /lib64/libpthread.so.0
#1 0x0000000000ab6f6a in my_write_core (sig=6) at /mnt/workspace/percona-server-5.6-binaries-debug-yassl/label_exp/centos6-64/percona-server-5.6.21-69.0/mysys/stacktrace.c:422
#2 0x000000000072f89f in handle_fatal_signal (sig=6) at /mnt/workspace/percona-server-5.6-binaries-debug-yassl/label_exp/centos6-64/percona-server-5.6.21-69.0/sql/signal_handler.cc:236
#3 <signal handler called>
#4 0x00007f463c5605c9 in raise () from /lib64/libc.so.6
#5 0x00007f463c561cd8 in abort () from /lib64/libc.so.6
#6 0x00007f463c5a0dd7 in __libc_message () from /lib64/libc.so.6
#7 0x00007f463c5a77dc in malloc_consolidate () from /lib64/libc.so.6
#8 0x00007f463c5a8097 in _int_free () from /lib64/libc.so.6
#9 0x0000000000ab13dc in my_free (ptr=0x7f45dcdd2310) at /mnt/workspace/percona-server-5.6-binaries-debug-yassl/label_exp/centos6-64/percona-server-5.6.21-69.0/mysys/my_malloc.c:140
#10 0x0000000000aab27c in free_root (root=0x2017ce8, MyFlags=0) at /mnt/workspace/percona-server-5.6-binaries-debug-yassl/label_exp/centos6-64/percona-server-5.6.21-69.0/mysys/my_alloc.c:383
#11 0x00000000007ae9ca in Warning_info::clear (this=0x2017ce8, new_id=19720) at /mnt/workspace/percona-server-5.6-binaries-debug-yassl/label_exp/centos6-64/percona-server-5.6.21-69.0/sql/sql_error.cc:606
#12 0x000000000073c641 in Warning_info::opt_clear (this=0x2017ce8, query_id=19720) at /mnt/workspace/percona-server-5.6-binaries-debug-yassl/label_exp/centos6-64/percona-server-5.6.21-69.0/sql/sql_error.h:329
#13 0x000000000073c7b5 in Diagnostics_area::opt_clear_warning_info (this=0x2017ac0, query_id=19720) at /mnt/workspace/percona-server-5.6-binaries-debug-yassl/label_exp/centos6-64/percona-server-5.6.21-69.0/sql/sql_error.h:719
#14 0x0000000000795ff4 in THD::raise_condition (this=0x20142b0, sql_errno=1109, sqlstate=0x0, level=Sql_condition::WARN_LEVEL_ERROR, msg=0x7f46067cb940 "Nepoznata tabela 'éabécdé' u 'information_schema'") at /mnt/workspace/percona-server-5.6-binaries-debug-yassl/label_exp/centos6-64/percona-server-5.6.21-69.0/sql/sql_class.cc:1334
#15 0x000000000062525c in my_message_sql (error=1109, str=0x7f46067cb940 "Nepoznata tabela 'éabécdé' u 'information_schema'", MyFlags=0) at /mnt/workspace/percona-server-5.6-binaries-debug-yassl/label_exp/centos6-64/percona-server-5.6.21-69.0/sql/mysqld.cc:3396
#16 0x0000000000aadd4d in my_error (nr=1109, MyFlags=0) at /mnt/workspace/percona-server-5.6-binaries-debug-yassl/label_exp/centos6-64/percona-server-5.6.21-69.0/mysys/my_error.c:185
#17 0x00000000007ee441 in st_select_lex::add_table_to_list (this=0x2016f10, thd=0x20142b0, table=0x7f45dc6382e8, alias=0x0, table_options=0, lock_type=TL_UNLOCK, mdl_type=MDL_SHARED_READ, index_hints_arg=0x0, partition_names=0x0, option=0x0) at /mnt/workspace/percona-server-5.6-binaries-debug-yassl/label_exp/centos6-64/percona-server-5.6.21-69.0/sql/sql_parse.cc:7210
#18 0x00000000008fc63b in MYSQLparse (YYTHD=0x20142b0) at /var/lib/jenkins/jobs/percona-server-5.6-source-tarballs/workspace/sql/sql_yacc.yy:12728
#19 0x00000000007f1387 in parse_sql (thd=0x20142b0, parser_state=0x7f46067cee30, creation_ctx=0x0) at /mnt/workspace/percona-server-5.6-binaries-debug-yassl/label_exp/centos6-64/percona-server-5.6.21-69.0/sql/sql_parse.cc:8783
#20 0x00000000007ecc5a in mysql_parse (thd=0x20142b0, rawbuf=0x7f45dc638200 "SHOW CREATE TABLE ```ab``cd```", length=30, parser_state=0x7f46067cee30) at /mnt/workspace/percona-server-5.6-binaries-debug-yassl/label_exp/centos6-64/percona-server-5.6.21-69.0/sql/sql_parse.cc:6676
#21 0x00000000007df49c in dispatch_command (command=COM_QUERY, thd=0x20142b0, packet=0x28267f1 "SHOW CREATE TABLE ```ab``cd```;", packet_length=31) at /mnt/workspace/percona-server-5.6-binaries-debug-yassl/label_exp/centos6-64/percona-server-5.6.21-69.0/sql/sql_parse.cc:1432
#22 0x00000000007de3c8 in do_command (thd=0x20142b0) at /mnt/workspace/percona-server-5.6-binaries-debug-yassl/label_exp/centos6-64/percona-server-5.6.21-69.0/sql/sql_parse.cc:1049
#23 0x00000000007a6385 in do_handle_one_connection (thd_arg=0x20142b0) at /mnt/workspace/percona-server-5.6-binaries-debug-yassl/label_exp/centos6-64/percona-server-5.6.21-69.0/sql/sql_connect.cc:1532
#24 0x00000000007a5e8d in handle_one_connection (arg=0x20142b0) at /mnt/workspace/percona-server-5.6-binaries-debug-yassl/label_exp/centos6-64/percona-server-5.6.21-69.0/sql/sql_connect.cc:1443
#25 0x0000000000dc5590 in pfs_spawn_thread (arg=0x2790610) at /mnt/workspace/percona-server-5.6-binaries-debug-yassl/label_exp/centos6-64/percona-server-5.6.21-69.0/storage/perfschema/pfs.cc:1860
#26 0x00007f463d957df3 in start_thread () from /lib64/libpthread.so.0
#27 0x00007f463c62101d in clone () from /lib64/libc.so.6

[Roel Van de Paar (roel11)]

Issue is single threaded (original run was single threaded). Testcase creation with reducer failed, but all files are available. Upload below.

[Shahriyar Rzayev (rzayev-sehriyar)]

Percona now uses JIRA for bug reports so this bug report is migrated to: https://jira.percona.com/browse/PS-3194