innodb_io_capacity can exceed innodb_io_capacity_max

SET GLOBAL innodb_adaptive_flushing_lwm=0.0;

CREATE TABLE t (c DOUBLE) ENGINE=InnoDB;

SET GLOBAL innodb_io_capacity=18446744073709551615;

SELECT SLEEP (3);

mysqld: /test/10.6_dbg/storage/innobase/buf/buf0flu.cc:1890: ulint af_get_pct_for_lsn(lsn_t): Assertion `srv_max_io_capacity >= srv_io_capacity' 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 0x14f13c652700 (LWP 1553990))]

(gdb) bt

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

#1  0x000055ee02c440d7 in my_write_core (sig=sig@entry=6) at /test/10.6_dbg/mysys/stacktrace.c:424

#2  0x000055ee023d8ab1 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  0x000014f145c21859 in __GI_abort () at abort.c:79

#6  0x000014f145c21729 in __assert_fail_base (fmt=0x14f145db7588 "%s%s%s:%u: %s%sAssertion `%s' failed.\n%n", assertion=0x55ee03064238 "srv_max_io_capacity >= srv_io_capacity", file=0x55ee03063238 "/test/10.6_dbg/storage/innobase/buf/buf0flu.cc", line=1890, function=<optimized out>) at assert.c:92

#7  0x000014f145c32f36 in __GI___assert_fail (assertion=assertion@entry=0x55ee03064238 "srv_max_io_capacity >= srv_io_capacity", file=file@entry=0x55ee03063238 "/test/10.6_dbg/storage/innobase/buf/buf0flu.cc", line=line@entry=1890, function=function@entry=0x55ee03064260 "ulint af_get_pct_for_lsn(lsn_t)") at assert.c:101

#8  0x000055ee02ac2529 in af_get_pct_for_lsn (age=1616) at /test/10.6_dbg/storage/innobase/buf/buf0flu.cc:1890

#9  page_cleaner_flush_pages_recommendation (dirty_pct=0.21037000371241182, dirty_blocks=17, oldest_lsn=43230, last_pages_in=0) at /test/10.6_dbg/storage/innobase/buf/buf0flu.cc:1921

#10 buf_flush_page_cleaner () at /test/10.6_dbg/storage/innobase/buf/buf0flu.cc:2170

#11 0x000014f14612f609 in start_thread (arg=<optimized out>) at pthread_create.c:477

#12 0x000014f145d1e293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

10.4.18>SET GLOBAL innodb_io_capacity=18446744073709551615;

Query OK, 0 rows affected, 2 warnings (0.000 sec)

10.4.18>SHOW WARNINGS;

+---------+------+------------------------------------------------------------------------------------------------------------+

| Level   | Code | Message                                                                                                    |

+---------+------+------------------------------------------------------------------------------------------------------------+

| Warning | 1210 | Setting innodb_io_capacity to 18446744073709551615 higher than innodb_io_capacity_max 18446744073709551614 |

| Warning | 1210 | Setting innodb_max_io_capacity to 18446744073709551614                                                     |

+---------+------+------------------------------------------------------------------------------------------------------------+

2 rows in set (0.000 sec)

10.4.18>SELECT @@GLOBAL.innodb_max_io_capacity;

ERROR 1193 (HY000): Unknown system variable 'innodb_max_io_capacity'

10.4.18>SELECT @@GLOBAL.innodb_io_capacity;

+-----------------------------+

| @@GLOBAL.innodb_io_capacity |

+-----------------------------+

|        18446744073709551615 |

+-----------------------------+

1 row in set (0.000 sec)