The ASAN failure was found on

origin/10.8, 10.8 5595ed9d9f20aeb463ac26e075c9cba41927e85e 2022-01-24T19:26:09+09:00

+ patch for MDEV-19555 + preliminary patch for MDEV-14481.

Per Marko its unlikely that the problem is caused by the patches.

==3771038==ERROR: AddressSanitizer: heap-use-after-free on address 0x61f0000492c4 at pc 0x55ea1c35b1c7 bp 0x7f09e985f380 sp 0x7f09e985f370

READ of size 4 at 0x61f0000492c4 thread T39

[Note] InnoDB: Online DDL : End of reading clustered index of the table and create temporary files

#0 0x55ea1c35b1c6 in prepare_inplace_alter_table_dict /data/Server/10.8-MDEV-14481/storage/innobase/handler/handler0alter.cc:6787

#1 0x55ea1c36b433 in ha_innobase::prepare_inplace_alter_table(TABLE*, Alter_inplace_info*) /data/Server/10.8-MDEV-14481/storage/innobase/handler/handler0alter.cc:8276

#2 0x55ea1ba3825f in handler::ha_prepare_inplace_alter_table(TABLE*, Alter_inplace_info*) /data/Server/10.8-MDEV-14481/sql/handler.cc:5172

#3 0x55ea1c1db64b in ha_partition::prepare_inplace_alter_table(TABLE*, Alter_inplace_info*) /data/Server/10.8-MDEV-14481/sql/ha_partition.cc:10401

#4 0x55ea1ba3825f in handler::ha_prepare_inplace_alter_table(TABLE*, Alter_inplace_info*) /data/Server/10.8-MDEV-14481/sql/handler.cc:5172

#5 0x55ea1b4ab27b in mysql_inplace_alter_table /data/Server/10.8-MDEV-14481/sql/sql_table.cc:7450

#6 0x55ea1b4bf5c8 in mysql_alter_table(THD*, st_mysql_const_lex_string const*, st_mysql_const_lex_string const*, HA_CREATE_INFO*, TABLE_LIST*, Alter_info*, unsigned int, st_order*, bool, bool) /data/Server/10.8-MDEV-14481/sql/sql_table.cc:10347

#7 0x55ea1b64af5f in Sql_cmd_alter_table::execute(THD*) /data/Server/10.8-MDEV-14481/sql/sql_alter.cc:544

#8 0x55ea1b219b50 in mysql_execute_command(THD*, bool) /data/Server/10.8-MDEV-14481/sql/sql_parse.cc:5988

#9 0x55ea1b225f8e in mysql_parse(THD*, char*, unsigned int, Parser_state*) /data/Server/10.8-MDEV-14481/sql/sql_parse.cc:8027

#10 0x55ea1b1fe37f in dispatch_command(enum_server_command, THD*, char*, unsigned int, bool) /data/Server/10.8-MDEV-14481/sql/sql_parse.cc:1894

#11 0x55ea1b1fb757 in do_command(THD*, bool) /data/Server/10.8-MDEV-14481/sql/sql_parse.cc:1402

...

Query (0x6290012e8238): ALTER TABLE a ENGINE = INNODB

Status: KILL_TIMEOUT

MDEV-27616.log and also pluto:/data/results/1643042626/TBR-1333/rqg.log

== RQG log which contains output written by ASAN etc.

pluto:/data/results/1643042626/TBR-1333 # Unpacked 

pluto:/data/results/1643042626/TBR-1333/dev/shm/rqg/1643042626/19/1/rr

== location of rr trace

RQG

===

# git clone https://github.com/mleich1/rqg --branch experimental RQG

#

# GIT_SHOW: HEAD -> experimental, origin/experimental 17c90b97a931f3b395258aec37903273627de6d7 2022-01-21T11:19:46+01:00

# rqg.pl  : Version 4.0.4 (2021-12)

#

# $RQG_HOME/rqg.pl \

# --grammar=conf/mariadb/partitions_innodb.yy \

# --mysqld=--loose-innodb_lock_schedule_algorithm=fcfs \

# --mysqld=--loose-idle_write_transaction_timeout=0 \

# --mysqld=--loose-idle_transaction_timeout=0 \

# --mysqld=--loose-idle_readonly_transaction_timeout=0 \

# --mysqld=--connect_timeout=60 \

# --mysqld=--interactive_timeout=28800 \

# --mysqld=--slave_net_timeout=60 \

# --mysqld=--net_read_timeout=30 \

# --mysqld=--net_write_timeout=60 \

# --mysqld=--loose-table_lock_wait_timeout=50 \

# --mysqld=--wait_timeout=28800 \

# --mysqld=--lock-wait-timeout=86400 \

# --mysqld=--innodb-lock-wait-timeout=50 \

# --no-mask \

# --queries=10000000 \

# --seed=random \

# --reporters=Backtrace \

# --reporters=ErrorLog \

# --reporters=Deadlock1 \

# --validators=None \

# --mysqld=--log_output=none \

# --mysqld=--log_bin_trust_function_creators=1 \

# --mysqld=--loose-debug_assert_on_not_freed_memory=0 \

# --engine=InnoDB \

# --restart_timeout=240 \

# --mysqld=--plugin-load-add=file_key_management.so \

# --mysqld=--loose-file-key-management-filename=$RQG_HOME/conf/mariadb/encryption_keys.txt \

# --mysqld=--plugin-load-add=provider_lzo.so \

# --mysqld=--plugin-load-add=provider_bzip2.so \

# --mysqld=--plugin-load-add=provider_lzma \

# --mysqld=--plugin-load-add=provider_snappy \

# --mysqld=--plugin-load-add=provider_lz4 \

# --duration=300 \

# --mysqld=--loose-innodb_fatal_semaphore_wait_threshold=300 \

# --mysqld=--loose-innodb_read_only_compressed=OFF \

# --mysqld=--innodb_stats_persistent=on \

# --mysqld=--innodb_adaptive_hash_index=off \

# --mysqld=--log-bin \

# --mysqld=--sync-binlog=1 \

# --mysqld=--loose-innodb_evict_tables_on_commit_debug=off \

# --mysqld=--loose-max-statement-time=30 \

# --threads=33 \

# --mysqld=--innodb-use-native-aio=0 \

# --mysqld=--loose-gdb \

# --mysqld=--loose-debug-gdb \

# --rr=Extended \

# --rr_options=--chaos --wait \

# --mysqld=--innodb_rollback_on_timeout=OFF \

# --vardir_type=fast \

# --mysqld=--innodb_page_size=16K \

# --mysqld=--innodb-buffer-pool-size=256M \

# --no_mask \

# <some local settings>