void sux_lock<ssux>::free() [with ssux = ssux_lock_impl<true>]: Assertion `r->empty()' failed

# 2025-11-03T15:00:33 [3626269] | mariadbd: /data/Server/10.6C/storage/innobase/include/sux_lock.h:85: void sux_lock<ssux>::free() [with ssux = ssux_lock_impl<true>]: Assertion `r->empty()' failed.

#0  __pthread_kill_implementation (no_tid=0, signo=6, threadid=<optimized out>) at ./nptl/pthread_kill.c:44

#1  __pthread_kill_internal (signo=6, threadid=<optimized out>) at ./nptl/pthread_kill.c:78

#2  __GI___pthread_kill (threadid=<optimized out>, signo=signo@entry=6) at ./nptl/pthread_kill.c:89

#3  __GI_raise (sig=sig@entry=6) at ../sysdeps/posix/raise.c:26

#4  __GI_abort () at ./stdlib/abort.c:79

#5  __assert_fail_base (fmt="%s%s%s:%u: %s%sAssertion `%s' failed.\n%n", assertion=assertion@entry="r->empty()", file=file@entry="/data/Server/10.6C/storage/innobase/include/sux_lock.h", line=line@entry=85,

    function=function@entry="void sux_lock<ssux>::free() [with ssux = ssux_lock_impl<true>]") at ./assert/assert.c:94

#6  __assert_fail (assertion="r->empty()", file="/data/Server/10.6C/storage/innobase/include/sux_lock.h", line=85, function="void sux_lock<ssux>::free() [with ssux = ssux_lock_impl<true>]")

    at ./assert/assert.c:103

#7  sux_lock<ssux_lock_impl<true> >::free (this=this@entry=) at /data/Server/10.6C/storage/innobase/include/sux_lock.h:85

#8  dict_index_remove_from_cache_low (table=table@entry=, index=, lru_evict=lru_evict@entry=0) at /data/Server/10.6C/storage/innobase/dict/dict0dict.cc:2198

#9  dict_sys_t::remove (this=<dict_sys>, table=table@entry=, lru=lru@entry=false, keep=keep@entry=false) at /data/Server/10.6C/storage/innobase/dict/dict0dict.cc:1924

#10 innobase_reload_table (thd=<optimized out>, table=, table_name=..., ctx=...) at /data/Server/10.6C/storage/innobase/handler/handler0alter.cc:10641

#11 ha_innobase::commit_inplace_alter_table (this=<optimized out>, altered_table=, ha_alter_info=, commit=<optimized out>) at /data/Server/10.6C/storage/innobase/handler/handler0alter.cc:11784

#12 handler::ha_commit_inplace_alter_table (this=, altered_table=altered_table@entry=, ha_alter_info=ha_alter_info@entry=, commit=commit@entry=true) at /data/Server/10.6C/sql/handler.cc:5439

#13 mysql_inplace_alter_table (thd=thd@entry=, table_list=, table=table@entry=, altered_table=altered_table@entry=, ha_alter_info=ha_alter_info@entry=, target_mdl_request=target_mdl_request@entry=,

    ddl_log_state=, trigger_param=, alter_ctx=) at /data/Server/10.6C/sql/sql_table.cc:7794

#14 mysql_alter_table (thd=thd@entry=, new_db=new_db@entry=, new_name=<optimized out>, create_info=create_info@entry=, table_list=<optimized out>, table_list@entry=, recreate_info=recreate_info@entry=,

    alter_info=<optimized out>, order_num=<optimized out>, order=<optimized out>, ignore=<optimized out>, if_exists=<optimized out>) at /data/Server/10.6C/sql/sql_table.cc:10851

#15 Sql_cmd_alter_table::execute (this=<optimized out>, thd=) at /data/Server/10.6C/sql/sql_alter.cc:675

#16 mysql_execute_command (thd=thd@entry=, is_called_from_prepared_stmt=is_called_from_prepared_stmt@entry=false) at /data/Server/10.6C/sql/sql_parse.cc:6167

#17 mysql_parse (thd=thd@entry=, rawbuf=<optimized out>, length=<optimized out>, parser_state=parser_state@entry=) at /data/Server/10.6C/sql/sql_parse.cc:8200

#18 dispatch_command (command=command@entry=COM_QUERY, thd=thd@entry=,

    packet=packet@entry=" ALTER IGNORE TABLE test.t9_p ADD FULLTEXT KEY IF NOT EXISTS `ftidx1` ( col_text ), LOCK = EXCLUSIVE  /* E_R Thread7 QNO 373 CON_ID 34 */ ", packet_length=packet_length@entry=138,

    blocking=blocking@entry=true) at /data/Server/10.6C/sql/sql_parse.cc:1908

#19 do_command (thd=thd@entry=, blocking=blocking@entry=true) at /data/Server/10.6C/sql/sql_parse.cc:1421

#20 do_handle_one_connection (connect=<optimized out>, connect@entry=, put_in_cache=put_in_cache@entry=true) at /data/Server/10.6C/sql/sql_connect.cc:1386

#21 handle_one_connection (arg=) at /data/Server/10.6C/sql/sql_connect.cc:1298

#22 start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:447

#23 clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:100