Assertion `!"wrong page type"' failed in row_log_table_low or ER_NOT_KEYFILE upon concurrent ALTER and UPDATE

--mysqld=--innodb_page_size=8K --mysqld=--loose-innodb_immediate_scrub_data_uncompressed=ON 

--source include/have_innodb.inc

CREATE TABLE t1 ( 

    pk INTEGER,

    f1 VARCHAR(1024),

    f2 TEXT NULL,

    f3 YEAR DEFAULT 2020,

    f4 SMALLINT DEFAULT 0,

    f5 TIME DEFAULT '00:00:00',

    f6 BIT(30) DEFAULT b'0',

    f7 TIMESTAMP(6) DEFAULT '1971-01-01 00:00:00',

    f8 DATE DEFAULT '2020-01-01',

    f9 CHAR(170) DEFAULT '',

    f10 DECIMAL(16,0) DEFAULT 0,

    f11 DATETIME(5) DEFAULT '2000-01-01 00:00:00',

    PRIMARY KEY(pk)

) ENGINE=InnoDB;

INSERT INTO t1 (pk,f1,f2) VALUES

    (1,'a','haul'),

    (2,'f','speaker'),

    (3,'u','institutional'),

    (4,'t',NULL),

    (5,'p','powerful'),

    (6,'k','christian'),

    (7,'b',NULL),

    (8,REPEAT('a',199),REPEAT('b',30)),

    (9,'h',REPEAT('c',3420)),

    (10,'s','network'),

    (11,'r',REPEAT('d',31)),

    (12,'a',REPEAT('e',54)),

    (13,'','habit'),

    (14,'','mode'),

    (15,'l',REPEAT('f',33)),

    (16,'s','correspondent');

--send

    ALTER TABLE t1 DROP PRIMARY KEY, ADD UNIQUE(pk);

--connect (con1,localhost,root,,test)

PREPARE stmt FROM "UPDATE t1 SET f2 = 'foo'";

EXECUTE stmt;

# Cleanup

--disconnect con1

--connection default

--reap

DROP TABLE t1;

perl ./mtr bug.wrong_type --vardir=/dev/shm/mtr1   --mysqld=--innodb_page_size=8K     --mysqld=--loose-innodb_immediate_scrub_data_uncompressed=ON     --mysqld=--innodb --mysqld=--default-storage-engine=InnoDB      --ps-protocol  --repeat=10

mysqld: /data/src/10.3/storage/innobase/row/row0log.cc:971: void row_log_table_low(const rec_t*, dict_index_t*, const ulint*, bool, const dtuple_t*): Assertion `!"wrong page type"' failed.

190903 13:29:53 [ERROR] mysqld got signal 6 ;

#6  0x00007f151ae74e67 in __assert_fail_base (fmt=<optimized out>, assertion=assertion@entry=0x55c5b09bd4a1 "!\"wrong page type\"", file=file@entry=0x55c5b09bcce8 "/data/src/10.3/storage/innobase/row/row0log.cc", line=line@entry=971, function=function@entry=0x55c5b09bfb00 <row_log_table_low(unsigned char const*, dict_index_t*, unsigned long const*, bool, dtuple_t const*)::__PRETTY_FUNCTION__> "void row_log_table_low(const rec_t*, dict_index_t*, const ulint*, bool, const dtuple_t*)") at assert.c:92

#7  0x00007f151ae74f12 in __GI___assert_fail (assertion=0x55c5b09bd4a1 "!\"wrong page type\"", file=0x55c5b09bcce8 "/data/src/10.3/storage/innobase/row/row0log.cc", line=971, function=0x55c5b09bfb00 <row_log_table_low(unsigned char const*, dict_index_t*, unsigned long const*, bool, dtuple_t const*)::__PRETTY_FUNCTION__> "void row_log_table_low(const rec_t*, dict_index_t*, const ulint*, bool, const dtuple_t*)") at assert.c:101

#8  0x000055c5b01f73b9 in row_log_table_low (rec=0x7f15147d4169 "", index=0x7f14c40a5618, offsets=0x7f14c8030d10, insert=false, old_pk=0x7f14c80307c8) at /data/src/10.3/storage/innobase/row/row0log.cc:971

#9  0x000055c5b01f835a in row_log_table_update (rec=0x7f15147d4169 "", index=0x7f14c40a5618, offsets=0x7f14c8030d10, old_pk=0x7f14c80307c8) at /data/src/10.3/storage/innobase/row/row0log.cc:1110

#10 0x000055c5b02555f0 in row_upd_clust_rec (flags=0, node=0x7f14c802c560, index=0x7f14c40a5618, offsets=0x7f14c8030d10, offsets_heap=0x7f151416b9d0, thr=0x7f14c802ca78, mtr=0x7f151416bd40) at /data/src/10.3/storage/innobase/row/row0upd.cc:2929

#11 0x000055c5b02564a0 in row_upd_clust_step (node=0x7f14c802c560, thr=0x7f14c802ca78) at /data/src/10.3/storage/innobase/row/row0upd.cc:3197

#12 0x000055c5b02568ee in row_upd (node=0x7f14c802c560, thr=0x7f14c802ca78) at /data/src/10.3/storage/innobase/row/row0upd.cc:3295

#13 0x000055c5b0256edd in row_upd_step (thr=0x7f14c802ca78) at /data/src/10.3/storage/innobase/row/row0upd.cc:3439

#14 0x000055c5b01e4558 in row_update_for_mysql (prebuilt=0x7f14c802bb98) at /data/src/10.3/storage/innobase/row/row0mysql.cc:1888

#15 0x000055c5b004472c in ha_innobase::update_row (this=0x7f14c80286b8, old_row=0x7f14c8029a50 "@\200\002", new_row=0x7f14c8028e68 "@\200\002") at /data/src/10.3/storage/innobase/handler/ha_innodb.cc:8850

#16 0x000055c5afe1e024 in handler::ha_update_row (this=0x7f14c80286b8, old_data=0x7f14c8029a50 "@\200\002", new_data=0x7f14c8028e68 "@\200\002") at /data/src/10.3/sql/handler.cc:6478

#17 0x000055c5afbf3cf5 in mysql_update (thd=0x7f14c8000b00, table_list=0x7f14c801a258, fields=..., values=..., conds=0x7f14c801ac88, order_num=0, order=0x0, limit=18446744073709551615, ignore=false, found_return=0x7f151416cbe0, updated_return=0x7f151416cca0) at /data/src/10.3/sql/sql_update.cc:955

#18 0x000055c5afaef863 in mysql_execute_command (thd=0x7f14c8000b00) at /data/src/10.3/sql/sql_parse.cc:4297

#19 0x000055c5afb1b2f6 in Prepared_statement::execute (this=0x7f14c8018580, expanded_query=0x7f151416d360, open_cursor=false) at /data/src/10.3/sql/sql_prepare.cc:4807

#20 0x000055c5afb19517 in Prepared_statement::execute_loop (this=0x7f14c8018580, expanded_query=0x7f151416d360, open_cursor=false, packet=0x7f14c8008c7a "", packet_end=0x7f14c8008c7a "") at /data/src/10.3/sql/sql_prepare.cc:4235

#21 0x000055c5afb16bbf in mysql_stmt_execute_common (thd=0x7f14c8000b00, stmt_id=1, packet=0x7f14c8008c7a "", packet_end=0x7f14c8008c7a "", cursor_flags=0, bulk_op=false, read_types=false) at /data/src/10.3/sql/sql_prepare.cc:3235

#22 0x000055c5afb16713 in mysqld_stmt_execute (thd=0x7f14c8000b00, packet_arg=0x7f14c8008c71 "\001", packet_length=9) at /data/src/10.3/sql/sql_prepare.cc:3133

#23 0x000055c5afae7f74 in dispatch_command (command=COM_STMT_EXECUTE, thd=0x7f14c8000b00, packet=0x7f14c8008c71 "\001", packet_length=9, is_com_multi=false, is_next_command=false) at /data/src/10.3/sql/sql_parse.cc:1798

#24 0x000055c5afae6c88 in do_command (thd=0x7f14c8000b00) at /data/src/10.3/sql/sql_parse.cc:1401

#25 0x000055c5afc5fc0c in do_handle_one_connection (connect=0x55c5b3d0bc50) at /data/src/10.3/sql/sql_connect.cc:1403

#26 0x000055c5afc5f96e in handle_one_connection (arg=0x55c5b3d0bc50) at /data/src/10.3/sql/sql_connect.cc:1308

#27 0x000055c5b064109c in pfs_spawn_thread (arg=0x55c5b3c54840) at /data/src/10.3/storage/perfschema/pfs.cc:1862

#28 0x00007f151c9e94a4 in start_thread (arg=0x7f151416e700) at pthread_create.c:456

#29 0x00007f151af31d0f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:97

mysqltest: At line 47: query 'reap' failed: 1034: Index for table 't1' is corrupt; try to repair it