A patch and a test case for

Bug#46539 Various crashes on INSERT IGNORE SELECT + SELECT FOR UPDATE.

If a transaction was rolled back inside InnoDB due to a deadlock
or lock wait timeout, and the statement had IGNORE clause,
the server could crash at the end of the statement or on shutdown.

This was caused by the error handling infrastructure's attempt to 
ignore a non-ignorable error.

When a transaction rollback request is raised, switch off 
current_select->no_error flag, so that the following error
won't be ignored.

Instead, we could add !thd->is_fatal_sub_stmt_error to
my_message_sql(), but since in write_record() we switch
off no_error, the same approach is used in 
thd_mark_transaction_to_rollback().

@todo: call thd_mark_transaction_to_rollback() from 
handler::print_error(), then we can easily make sure
that the error reported by print_error is not ignored.

mysql-test/r/innodb_lock_wait_timeout_1.result:
  Update results (Bug#46539).
mysql-test/t/innodb_lock_wait_timeout_1.test:
  Add a test case for Bug#46539
sql/sql_class.cc:
  When a transaction rollback request is raised, switch of 
  current_select->no_error flag, so that the following error
  won't be ignored.

mysql-test/r/innodb_lock_wait_timeout_1.result

@@ -26,4 +26,27 @@ SELECT * FROM t1;
 a	b
 1070109	99
 DROP TABLE t2, t1;
-End of 5.0 tests
+# End of 5.0 tests
+#
+# Bug#46539 Various crashes on INSERT IGNORE SELECT + SELECT
+#           FOR UPDATE
+#
+drop table if exists t1;
+create table t1 (a int primary key auto_increment,
+b int, index(b)) engine=innodb;
+insert into t1 (b) values (1), (2), (3), (4), (5), (6), (7), (8), (9), (10);
+set autocommit=0;
+begin;
+select * from t1 where b=5 for update;
+a	b
+5	5
+insert ignore into t1 (b) select a as b from t1;
+ERROR HY000: Lock wait timeout exceeded; try restarting transaction
+# Cleanup
+#
+commit;
+set autocommit=default;
+drop table t1;
+#
+# End of 5.1 tests
+#

mysql-test/t/innodb_lock_wait_timeout_1.test

@@ -43,4 +43,33 @@ DISCONNECT addconroot;
 
 DROP TABLE t2, t1;
 
---echo End of 5.0 tests
+--echo # End of 5.0 tests
+
+--echo #
+--echo # Bug#46539 Various crashes on INSERT IGNORE SELECT + SELECT
+--echo #           FOR UPDATE
+--echo #
+--disable_warnings
+drop table if exists t1;
+--enable_warnings
+create table t1 (a int primary key auto_increment,
+                 b int, index(b)) engine=innodb;
+insert into t1 (b) values (1), (2), (3), (4), (5), (6), (7), (8), (9), (10);
+set autocommit=0;
+begin;
+select * from t1 where b=5 for update;
+connect (con1, localhost, root,,);
+connection con1;
+--error ER_LOCK_WAIT_TIMEOUT
+insert ignore into t1 (b) select a as b from t1;
+connection default;
+--echo # Cleanup
+--echo #
+disconnect con1;
+commit;
+set autocommit=default;
+drop table t1;
+
+--echo #
+--echo # End of 5.1 tests
+--echo #

sql/sql_class.cc

@@ -3215,6 +3215,16 @@ void mark_transaction_to_rollback(THD *thd, bool all)
   {
     thd->is_fatal_sub_stmt_error= TRUE;
     thd->transaction_rollback_request= all;
+    /*
+      Aborted transactions can not be IGNOREd.
+      Switch off the IGNORE flag for the current
+      SELECT_LEX. This should allow my_error()
+      to report the error and abort the execution
+      flow, even in presence
+      of IGNORE clause.
+    */
+    if (thd->lex->current_select)
+      thd->lex->current_select->no_error= FALSE;
   }
 }
 /***************************************************************************