mysql_bug_75245_5541.patch

--- a/storage/innobase/handler/ha_innodb.cc
+++ b/storage/innobase/handler/ha_innodb.cc
@@ -17158,6 +17158,11 @@ ib_warn_row_too_big(const dict_table_t*        table)

        THD*    thd = current_thd;

+       /* If current_thd is NULL, don't send a warning to the client */
+       if(thd == NULL) {
+               return;
+       }
+
        push_warning_printf(
                thd, Sql_condition::WARN_LEVEL_WARN, HA_ERR_TO_BIG_ROW,
                "Row size too large (> %lu). Changing some columns to TEXT"