10.6.0>SET GLOBAL innodb_limit_optimistic_insert_debug=2;

Query OK, 0 rows affected (0.000 sec)

10.6.0>CREATE TABLE t (c INT) ENGINE=InnoDB;

Query OK, 0 rows affected (0.014 sec)

10.6.0>INSERT INTO t VALUES (1),(2),(3),(4);

Query OK, 4 rows affected (0.007 sec)

Records: 4  Duplicates: 0  Warnings: 0

10.6.0>ALTER TABLE t ADD COLUMN (a INT);

Query OK, 0 rows affected (0.005 sec)

Records: 0  Duplicates: 0  Warnings: 0

10.6.0>DELETE FROM t;

Query OK, 4 rows affected (0.001 sec)

10.6.0>ALTER TABLE t ADD COLUMN (b INT);

ERROR 2013 (HY000): Lost connection to MySQL server during query

SET GLOBAL innodb_limit_optimistic_insert_debug=2;

CREATE TABLE t (c INT) ENGINE=MyISAM;

INSERT INTO t VALUES (1),(2),(3),(4);

ALTER TABLE t ADD COLUMN (a INT);

DELETE FROM t;

ALTER TABLE t ADD COLUMN (b INT);

mysqld: /test/10.6_dbg/storage/innobase/handler/handler0alter.cc:5916: bool innobase_instant_try(const Alter_inplace_info*, ha_innobase_inplace_ctx*, const TABLE*, const TABLE*, trx_t*): Assertion `block->page.id().page_no() == index->page' failed.

Core was generated by `/test/MD010121-mariadb-10.6.0-linux-x86_64-dbg/bin/mysqld --no-defaults --core-'.

Program terminated with signal SIGABRT, Aborted.

#0  __pthread_kill (threadid=<optimized out>, signo=signo@entry=6)

    at ../sysdeps/unix/sysv/linux/pthread_kill.c:56

[Current thread is 1 (Thread 0x14f168440700 (LWP 2019357))]

(gdb) bt

#0  __pthread_kill (threadid=<optimized out>, signo=signo@entry=6) at ../sysdeps/unix/sysv/linux/pthread_kill.c:56

#1  0x0000563bb11b60d7 in my_write_core (sig=sig@entry=6) at /test/10.6_dbg/mysys/stacktrace.c:424

#2  0x0000563bb094aab1 in handle_fatal_signal (sig=6) at /test/10.6_dbg/sql/signal_handler.cc:330

#3  <signal handler called>

#4  __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:50

#5  0x000014f16affe859 in __GI_abort () at abort.c:79

#6  0x000014f16affe729 in __assert_fail_base (fmt=0x14f16b194588 "%s%s%s:%u: %s%sAssertion `%s' failed.\n%n", assertion=0x563bb156ef48 "block->page.id().page_no() == index->page", file=0x563bb1566920 "/test/10.6_dbg/storage/innobase/handler/handler0alter.cc", line=5916, function=<optimized out>) at assert.c:92

#7  0x000014f16b00ff36 in __GI___assert_fail (assertion=assertion@entry=0x563bb156ef48 "block->page.id().page_no() == index->page", file=file@entry=0x563bb1566920 "/test/10.6_dbg/storage/innobase/handler/handler0alter.cc", line=line@entry=5916, function=function@entry=0x563bb156e8b8 "bool innobase_instant_try(const Alter_inplace_info*, ha_innobase_inplace_ctx*, const TABLE*, const TABLE*, trx_t*)") at assert.c:101

#8  0x0000563bb0da1f33 in innobase_instant_try (ha_alter_info=ha_alter_info@entry=0x14f16843c750, ctx=ctx@entry=0x14f124013f48, altered_table=altered_table@entry=0x14f16843c7f0, table=table@entry=0x14f12406bd28, trx=trx@entry=0x14f1686fc378) at /test/10.6_dbg/storage/innobase/include/buf0types.h:159

#9  0x0000563bb0da424e in commit_try_norebuild (ha_alter_info=ha_alter_info@entry=0x14f16843c750, ctx=ctx@entry=0x14f124013f48, altered_table=altered_table@entry=0x14f16843c7f0, old_table=0x14f12406bd28, trx=trx@entry=0x14f1686fc378, table_name=<optimized out>) at /test/10.6_dbg/storage/innobase/handler/handler0alter.cc:10212

#10 0x0000563bb0d8c147 in ha_innobase::commit_inplace_alter_table (this=0x14f1240233f0, altered_table=0x14f16843c7f0, ha_alter_info=0x14f16843c750, commit=true) at /test/10.6_dbg/storage/innobase/handler/handler0alter.cc:10975

#11 0x0000563bb09592c5 in handler::ha_commit_inplace_alter_table (this=0x14f1240233f0, altered_table=altered_table@entry=0x14f16843c7f0, ha_alter_info=ha_alter_info@entry=0x14f16843c750, commit=commit@entry=true) at /test/10.6_dbg/sql/handler.cc:4848

#12 0x0000563bb074e43e in mysql_inplace_alter_table (thd=thd@entry=0x14f124000db8, table_list=0x14f1240127b0, table=table@entry=0x14f12406bd28, altered_table=altered_table@entry=0x14f16843c7f0, ha_alter_info=ha_alter_info@entry=0x14f16843c750, target_mdl_request=target_mdl_request@entry=0x14f16843cd40, alter_ctx=0x14f16843d890) at /test/10.6_dbg/sql/sql_table.cc:8107

#13 0x0000563bb0761b1f in mysql_alter_table (thd=thd@entry=0x14f124000db8, new_db=new_db@entry=0x14f124005828, new_name=new_name@entry=0x14f124005c28, create_info=create_info@entry=0x14f16843e4a0, table_list=<optimized out>, table_list@entry=0x14f1240127b0, alter_info=alter_info@entry=0x14f16843e3d0, order_num=0, order=0x0, ignore=false, if_exists=false) at /test/10.6_dbg/sql/sql_table.cc:10651

#14 0x0000563bb07e7640 in Sql_cmd_alter_table::execute (this=<optimized out>, thd=0x14f124000db8) at /test/10.6_dbg/sql/structs.h:559

#15 0x0000563bb068b4c6 in mysql_execute_command (thd=thd@entry=0x14f124000db8) at /test/10.6_dbg/sql/sql_parse.cc:5858

#16 0x0000563bb0672072 in mysql_parse (thd=thd@entry=0x14f124000db8, rawbuf=<optimized out>, length=<optimized out>, parser_state=parser_state@entry=0x14f16843f3d0) at /test/10.6_dbg/sql/sql_parse.cc:7881

#17 0x0000563bb06801ec in dispatch_command (command=command@entry=COM_QUERY, thd=thd@entry=0x14f124000db8, packet=packet@entry=0x14f124008d39 "ALTER TABLE t ADD COLUMN (b INT)", packet_length=packet_length@entry=32) at /test/10.6_dbg/sql/sql_class.h:1293

#18 0x0000563bb068352d in do_command (thd=0x14f124000db8) at /test/10.6_dbg/sql/sql_parse.cc:1348

#19 0x0000563bb07df7fc in do_handle_one_connection (connect=<optimized out>, connect@entry=0x563bb3e9b9c8, put_in_cache=put_in_cache@entry=true) at /test/10.6_dbg/sql/sql_connect.cc:1410

#20 0x0000563bb07dff03 in handle_one_connection (arg=arg@entry=0x563bb3e9b9c8) at /test/10.6_dbg/sql/sql_connect.cc:1312

#21 0x0000563bb0c9588f in pfs_spawn_thread (arg=0x563bb3dc38b8) at /test/10.6_dbg/storage/perfschema/pfs.cc:2201

#22 0x000014f16b50c609 in start_thread (arg=<optimized out>) at pthread_create.c:477

#23 0x000014f16b0fb293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95