Deadlock between ibuf_insert_to_index_page_low() and ibuf_delete_for_discarded_space()

origin/bb-10.6-MDEV-22718 62de4addd247fceced29674b4a29dfec72b4340b 2022-09-19T15:30:09+03:00

But per Marko the problem is in the main tree 10.6 too.

Scenario:

1. Start the DB server and generate some initial data.

2. Nine concurrent sessions run a DDL/DML mix.

After some time the DB server aborts with

# 2022-09-19T14:28:20 [237985] | [rr 240412 607243]2022-09-19 14:24:50 0 [ERROR] [FATAL] InnoDB: innodb_fatal_semaphore_wait_threshold was exceeded for dict_sys.latch. Please refer to https://mariadb.com/kb/en/how-to-produce-a-full-stack-trace-for-mysqld/

pluto:/data/results/1663596022/TBR-788$ _RR_TRACE_DIR=./1/rr/ rr replay --mark-stdio

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

#

# GIT_SHOW: HEAD -> experimental, origin/experimental 8b78c9ad5db438b8a938faeac86dddf1e4094fdd 2022-09-19T14:29:39+02:00

# rqg.pl  : Version 4.0.6 (2022-05)

#

# $RQG_HOME/rqg.pl \

# --views \

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

# --redefine=conf/mariadb/alter_table.yy \

# --redefine=conf/mariadb/instant_add.yy \

# --redefine=conf/mariadb/modules/alter_table_columns.yy \

# --redefine=conf/mariadb/bulk_insert.yy \

# --redefine=conf/mariadb/modules/foreign_keys.yy \

# --redefine=conf/mariadb/modules/locks.yy \

# --redefine=conf/mariadb/modules/sql_mode.yy \

# --redefine=conf/mariadb/versioning.yy \

# --redefine=conf/mariadb/sequences.yy \

# --redefine=conf/mariadb/modules/locks-10.4-extra.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.so \

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

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

# --duration=300 \

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

# --mysqld=--innodb_file_per_table=1 \

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

# --mysqld=--loose-innodb-sync-debug \

# --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=9 \

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

# --mysqld=--loose-gdb \

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

# --rr=Extended \

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

# --mysqld=--innodb_undo_tablespaces=3 \

# --mysqld=--innodb_undo_log_truncate=ON \

# --mysqld=--transaction-isolation=READ-UNCOMMITTED \

# --mysqld=--loose_innodb_change_buffering=all \

# --mysqld=--innodb_rollback_on_timeout=OFF \

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

# --mysqld=--innodb-buffer-pool-size=8M \

# <local settings>