From: Date: November 10 2006 5:31pm
Subject: bk commit into 4.1 tree (cmiller:1.2544) BUG#22860
List-Archive: http://lists.mysql.com/commits/15147
X-Bug: 22860
Message-Id: <20061110163127.EA2BB83047@zippy>

Below is the list of changes that have just been committed into a local
4.1 repository of cmiller. When cmiller does a push these changes will
be propagated to the main repository and, within 24 hours after the
push, to the public repository.
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see http://dev.mysql.com/doc/mysql/en/installing-source-tree.html

ChangeSet@stripped, 2006-11-10 11:31:25-05:00, cmiller@stripped +1 -0
  Bug #22860: Option --memlock should be revisited
  
  Support says that memlock doesn't work on OSes other than Solaris.  If 
  "memlock" command-line parameter is specified on an OS that doesn't
  reliably support it, then unset it and warn that it's unsupported.

  sql/mysqld.cc@stripped, 2006-11-10 11:31:23-05:00, cmiller@stripped +10 -0
    Unset and warn about attempts to use memlock on unsupported OSes.

# This is a BitKeeper patch.  What follows are the unified diffs for the
# set of deltas contained in the patch.  The rest of the patch, the part
# that BitKeeper cares about, is below these diffs.
# User:	cmiller
# Host:	zippy.cornsilk.net
# Root:	/home/cmiller/work/mysql/bug22860/my41-bug22860

--- 1.619/sql/mysqld.cc	2006-11-10 11:31:27 -05:00
+++ 1.620/sql/mysqld.cc	2006-11-10 11:31:27 -05:00
@@ -6694,6 +6694,16 @@ static void get_options(int argc,char **
       !opt_slow_log)
     sql_print_warning("options --log-slow-admin-statements and --log-queries-not-using-indexes have no effect if --log-slow-queries is not set");
 
+#if (defined(sun) || defined(__sun))
+  /* whitelist of OSes that support memlock.  (Bug#22860) */
+#else
+  if (locked_in_memory)
+  {
+    sql_print_warning("this operating system does not support reliable memlock; disabling");
+    locked_in_memory= 0;
+  }
+#endif
+
   /*
     Check that the default storage engine is actually available.
   */