Error 126 "Index file is crashed" or ER_NOT_KEYFILE and eventual "Table is crashed and last repair failed" upon creation or using table with FULLTEXT key on virtual column

CREATE TABLE t1 ( 

  pk INTEGER AUTO_INCREMENT,

  c CHAR(133) NOT NULL DEFAULT '',

  vc CHAR(133) AS (c) VIRTUAL,

  PRIMARY KEY(pk),

  FULLTEXT KEY(vc)

);

INSERT IGNORE INTO t1 (c) VALUES

('wzinqrtm'),('i'),('r'),('iu'),('xac'),('i'),('el'),('kvxlo'),('i'),

('oudzr'),('zr'),('dv'),('kk'),('dwdiw'),('diwkk'),('w'),('jvknqv'),

('knqv'),('q'),(''),('qe'),('ekpv'),('vms'),('sj'),(''),(''),('n'),(''),

('av'),(''),('lxeovd'),('eov'),('v'),('lf'),('cld'),('dawevgnw'),('e'),

('gnwnbc'),('wnbcfcou'),(''),('fcouyjv'),(''),('yj'),('ifixy'),('xy'),

('yfb'),('b'),('o'),('lo'),('heqnpx'),('qnpxpivk'),('p'),('ivk'),('o'),

('s'),('qc'),('yltzcud'),('tz'),('g'),('d'),('m'),('lxhss'),('hs'),('a'),

('k'),('bya'),('x'),('log'),('lhpb'),(''),('y'),('u'),('bce'),('e'),

('mi'),('owxdqtc'),('xd'),('t'),('bs'),('bjw'),('g'),('z'),('jg'),

('xbmwb'),('g'),('hluhcku'),(''),('hckul'),('ku'),('ldakn'),('knr'),(''),

('c'),('obkit'),('kitz'),('x'),('sesfheh'),('sfhehe'),('ehet'),('t');

--error 0,126,ER_NOT_KEYFILE

DELETE FROM t1 WHERE pk = 1 ORDER BY vc;

--error 0,126,ER_NOT_KEYFILE

DELETE FROM t1 WHERE pk = 8 ORDER BY vc;

SELECT * FROM t1 INTO OUTFILE 'load.data';

LOAD DATA INFILE 'load.data' REPLACE INTO TABLE t1;

FLUSH TABLES;

--error 0,126,ER_NOT_KEYFILE

DELETE FROM t1 LIMIT 4;

SELECT pk FROM t1;

# Cleanup

--let $datadir= `SELECT @@datadir`

--remove_file $datadir/test/load.data

DROP TABLE t1;

# perl ./mtr bug.corrupt  --mysqld=--innodb --mysqld=--default-storage-engine=InnoDB

mysqltest: At line 1: query 'CREATE TABLE t1 ( 

pk INTEGER AUTO_INCREMENT,

c CHAR(133) NOT NULL DEFAULT '',

vc CHAR(133) AS (c) VIRTUAL,

PRIMARY KEY(pk),

FULLTEXT KEY(vc)

)' failed: 1005: Can't create table `test`.`t1` (errno: 126 "Index file is crashed")

# perl ./mtr bug.corrupt --mysqld=--default-storage-engine=MyISAM --force --force

DELETE FROM t1 WHERE pk = 1 ORDER BY vc;

mysqltest: At line 22: query 'DELETE FROM t1 WHERE pk = 1 ORDER BY vc' failed: 126: Incorrect key file for table './test/t1.MYI'; try to repair it

DELETE FROM t1 WHERE pk = 8 ORDER BY vc;

mysqltest: At line 23: query 'DELETE FROM t1 WHERE pk = 8 ORDER BY vc' failed: 126: Incorrect key file for table './test/t1.MYI'; try to repair it

SELECT * FROM t1 INTO OUTFILE 'load.data';

LOAD DATA INFILE 'load.data' REPLACE INTO TABLE t1;

FLUSH TABLES;

DELETE FROM t1 LIMIT 4;

mysqltest: At line 29: query 'DELETE FROM t1 LIMIT 4' failed: 1034: Incorrect key file for table 't1'; try to repair it

SELECT pk FROM t1;

mysqltest: At line 31: query 'SELECT pk FROM t1' failed: 144: Table './test/t1' is marked as crashed and last (automatic?) repair failed

2018-11-05 19:42:53 140364583480064 [ERROR] mysqld: Incorrect key file for table './test/t1.MYI'; try to repair it

2018-11-05 19:42:53 140364583480064 [ERROR] mysqld: Incorrect key file for table './test/t1.MYI'; try to repair it

2018-11-05 19:42:53 140364583480064 [ERROR] Got an error from thread_id=3, /data/src/10.1/storage/myisam/mi_delete.c:121

2018-11-05 19:42:53 140364583480064 [ERROR] MySQL thread id 3, OS thread handle 0x7fa92d232b00, query id 21 localhost root updating

2018-11-05 19:42:53 140364583480064 [ERROR] mysqld: Incorrect key file for table './test/t1.MYI'; try to repair it

2018-11-05 19:42:53 140364583480064 [ERROR] mysqld: Incorrect key file for table './test/t1.MYI'; try to repair it

2018-11-05 19:42:53 140364583480064 [ERROR] Got an error from thread_id=3, /data/src/10.1/storage/myisam/mi_delete.c:121

2018-11-05 19:42:53 140364583480064 [ERROR] MySQL thread id 3, OS thread handle 0x7fa92d232b00, query id 22 localhost root updating

2018-11-05 19:42:53 140364583480064 [ERROR] mysqld: Table './test/t1' is marked as crashed and should be repaired

2018-11-05 19:42:53 140364583480064 [Warning] Checking table:   './test/t1'

2018-11-05 19:42:53 140364583480064 [Warning] Recovering table: './test/t1'

2018-11-05 19:42:53 140364583480064 [ERROR] Couldn't repair table: test.t1

2018-11-05 19:42:53 140364583480064 [ERROR] mysqld: Table './test/t1' is marked as crashed and last (automatic?) repair failed

# perl ./mtr bug.corrupt  --mysqld=--default-storage-engine=Aria --force --force

DELETE FROM t1 WHERE pk = 1 ORDER BY vc;

mysqltest: At line 22: query 'DELETE FROM t1 WHERE pk = 1 ORDER BY vc' failed: 1034: Incorrect key file for table 't1'; try to repair it

DELETE FROM t1 WHERE pk = 8 ORDER BY vc;

mysqltest: At line 23: query 'DELETE FROM t1 WHERE pk = 8 ORDER BY vc' failed: 1034: Incorrect key file for table 't1'; try to repair it

SELECT * FROM t1 INTO OUTFILE 'load.data';

LOAD DATA INFILE 'load.data' REPLACE INTO TABLE t1;

FLUSH TABLES;

DELETE FROM t1 LIMIT 4;

mysqltest: At line 29: query 'DELETE FROM t1 LIMIT 4' failed: 1034: Incorrect key file for table 't1'; try to repair it

SELECT pk FROM t1;

mysqltest: At line 31: query 'SELECT pk FROM t1' failed: 144: Table './test/t1' is marked as crashed and last (automatic?) repair failed

2018-11-05 19:44:13 139798647491328 [ERROR] mysqld: Table './test/t1' is marked as crashed and should be repaired

2018-11-05 19:44:13 139798647491328 [Warning] Recovering table: './test/t1'

2018-11-05 19:44:13 139798647491328 [ERROR] Couldn't repair table: test.t1

2018-11-05 19:44:13 139798647491328 [ERROR] mysqld: Table './test/t1' is marked as crashed and last (automatic?) repair failed