From 7ad570210d4ad20201ea916c8114fd2abf8f8531 Mon Sep 17 00:00:00 2001 From: unknown Date: Fri, 15 Jun 2007 12:40:30 +0400 Subject: [PATCH] Another attempt to fix the valgrind warning in SHOW PROCESSLIST (event_bugs.test) sql/event_data_objects.cc: SHOW PROCESSLIST tries to read thd->query without a mutex. If we do not reset it, it points to free()d contents of stack variable sp_sql. --- sql/event_data_objects.cc | 3 +++ 1 file changed, 3 insertions(+) diff --git a/sql/event_data_objects.cc b/sql/event_data_objects.cc index 757cf7f93fb..77dc33e6265 100644 --- a/sql/event_data_objects.cc +++ b/sql/event_data_objects.cc @@ -1900,6 +1900,9 @@ end: thd->lex->unit.cleanup(); thd->end_statement(); thd->cleanup_after_query(); + /* Avoid races with SHOW PROCESSLIST */ + thd->query_length= 0; + thd->query= NULL; DBUG_PRINT("info", ("EXECUTED %s.%s ret: %d", dbname.str, name.str, ret));