Root page AHI Removal fails fails during bulk index rollback

DROP DATABASE test;

CREATE DATABASE test;

USE test;

XA START 'a';

SET GLOBAL innodb_adaptive_hash_index='ON';

CREATE TEMPORARY TABLE t1(c INT) ENGINE=InnoDB;

CREATE TEMPORARY TABLE t3(a INT) ENGINE=MERGE UNION=(t1,t2);

INSERT INTO t1(c) SELECT seq FROM seq_1_to_500;

LOAD INDEX INTO CACHE t3 KEY(b),t2 KEY(d);

INSERT INTO t1(c) SELECT seq FROM seq_1_to_500;

InnoDB: Failing assertion: (block)->index || (block)->n_pointers == 0

Core was generated by `/test/MD100221-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 0x14a64c737700 (LWP 2127796))]

(gdb) bt

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

#1  0x000055b0c7a3955e in my_write_core (sig=sig@entry=6) at /test/10.6_dbg/mysys/stacktrace.c:424

#2  0x000055b0c71d14de 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  0x000014a657b9c859 in __GI_abort () at abort.c:79

#6  0x000055b0c7819e9a in ut_dbg_assertion_failed (expr=expr@entry=0x55b0c7e07a40 "(block)->index || (block)->n_pointers == 0", file=file@entry=0x55b0c7e58fe0 "/test/10.6_dbg/storage/innobase/btr/btr0sea.cc", line=line@entry=1379) at /test/10.6_dbg/storage/innobase/ut/ut0dbg.cc:60

#7  0x000055b0c7880d06 in btr_search_drop_page_hash_index (block=block@entry=0x14a634010a00) at /test/10.6_dbg/storage/innobase/btr/btr0sea.cc:1379

#8  0x000055b0c78290bb in dict_index_t::clear (this=this@entry=0x14a5e802e938, thr=thr@entry=0x14a5e82bd1d8) at /test/10.6_dbg/storage/innobase/btr/btr0btr.cc:1219

#9  0x000055b0c776e587 in dict_table_t::clear (this=<optimized out>, thr=thr@entry=0x14a5e82bd1d8) at /test/10.6_dbg/storage/innobase/row/row0log.cc:4129

#10 0x000055b0c79ae6f8 in row_undo_ins (node=node@entry=0x14a5e82bd628, thr=thr@entry=0x14a5e82bd1d8) at /test/10.6_dbg/storage/innobase/row/row0uins.cc:607

#11 0x000055b0c77a4eaf in row_undo (thr=0x14a5e82bd1d8, node=0x14a5e82bd628) at /test/10.6_dbg/storage/innobase/row/row0undo.cc:439

#12 row_undo_step (thr=thr@entry=0x14a5e82bd1d8) at /test/10.6_dbg/storage/innobase/row/row0undo.cc:495

#13 0x000055b0c76e92c8 in que_thr_step (thr=0x14a5e82bd1d8) at /test/10.6_dbg/storage/innobase/que/que0que.cc:651

#14 que_run_threads_low (thr=0x14a5e82bd1d8) at /test/10.6_dbg/storage/innobase/que/que0que.cc:709

#15 que_run_threads (thr=0x14a5e82bd1d8) at /test/10.6_dbg/storage/innobase/que/que0que.cc:729

#16 0x000055b0c77f4d1c in trx_t::rollback_low (this=this@entry=0x14a64e9f22a0, savept=savept@entry=0x0) at /test/10.6_dbg/storage/innobase/trx/trx0roll.cc:118

#17 0x000055b0c77f2ae3 in trx_rollback_for_mysql_low (trx=0x14a64e9f22a0) at /test/10.6_dbg/storage/innobase/trx/trx0roll.cc:189

#18 trx_rollback_for_mysql (trx=trx@entry=0x14a64e9f22a0) at /test/10.6_dbg/storage/innobase/trx/trx0roll.cc:219

#19 0x000055b0c75c42ae in innobase_rollback (hton=<optimized out>, thd=0x14a5e8000db8, rollback_trx=<optimized out>) at /test/10.6_dbg/storage/innobase/handler/ha_innodb.cc:4111

#20 0x000055b0c71d6c67 in ha_rollback_trans (thd=thd@entry=0x14a5e8000db8, all=all@entry=true) at /test/10.6_dbg/sql/handler.cc:2053

#21 0x000055b0c707c1ed in trans_rollback_implicit (thd=thd@entry=0x14a5e8000db8) at /test/10.6_dbg/sql/transaction.cc:421

#22 0x000055b0c707a3d5 in mysql_admin_table (thd=thd@entry=0x14a5e8000db8, tables=tables@entry=0x14a5e8012800, check_opt=check_opt@entry=0x0, operator_name=operator_name@entry=0x55b0c7d8dfa3 "preload_keys", lock_type=lock_type@entry=TL_READ_NO_INSERT, org_open_for_modify=org_open_for_modify@entry=false, repair_table_use_frm=false, extra_open_options=0, prepare_func=0x0, operator_func=&virtual table offset 752, view_operator_func=0x0) at /test/10.6_dbg/sql/sql_admin.cc:1240

#23 0x000055b0c707b09b in mysql_preload_keys (thd=thd@entry=0x14a5e8000db8, tables=tables@entry=0x14a5e8012800) at /test/10.6_dbg/sql/sql_admin.cc:1368

#24 0x000055b0c6f0d4be in mysql_execute_command (thd=thd@entry=0x14a5e8000db8) at /test/10.6_dbg/sql/sql_parse.cc:3976

#25 0x000055b0c6ef921a in mysql_parse (thd=thd@entry=0x14a5e8000db8, rawbuf=<optimized out>, length=<optimized out>, parser_state=parser_state@entry=0x14a64c7363d0) at /test/10.6_dbg/sql/sql_parse.cc:7906

#26 0x000055b0c6f0730b in dispatch_command (command=command@entry=COM_QUERY, thd=thd@entry=0x14a5e8000db8, packet=packet@entry=0x14a5e801aac9 "", packet_length=packet_length@entry=41) at /test/10.6_dbg/sql/sql_class.h:1295

#27 0x000055b0c6f0a63d in do_command (thd=0x14a5e8000db8) at /test/10.6_dbg/sql/sql_parse.cc:1365

#28 0x000055b0c70661ab in do_handle_one_connection (connect=<optimized out>, connect@entry=0x55b0ca0176e8, put_in_cache=put_in_cache@entry=true) at /test/10.6_dbg/sql/sql_connect.cc:1410

#29 0x000055b0c70668af in handle_one_connection (arg=arg@entry=0x55b0ca0176e8) at /test/10.6_dbg/sql/sql_connect.cc:1312

#30 0x000055b0c751a27d in pfs_spawn_thread (arg=0x55b0c9f02c38) at /test/10.6_dbg/storage/perfschema/pfs.cc:2201

#31 0x000014a6580aa609 in start_thread (arg=<optimized out>) at pthread_create.c:477

#32 0x000014a657c99293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95