# # Bug #21794102 HANDLE_FATAL_SIGNAL (SIG=11) IN # DICT_TABLE_T::GET_REF_COUNT # create table t1 (f1 int primary key, f2 int) engine=innodb; insert into t1 values (1, 1); set debug ='d,test_sys_tablestats'; set debug_sync = 'dict_table_not_protected SIGNAL have_t1 WAIT_FOR del_t1'; select name from information_schema.innodb_sys_tablestats; # Connection con1: set debug_sync = 'now WAIT_FOR have_t1'; drop table t1; set debug_sync = 'now SIGNAL del_t1'; # Connection default: set debug_sync = reset; set debug = reset; set global innodb_background_drop_list_empty = 0;