Merge work:/my/mysql into donna.mysql.fi:/home/my/bk/mysql

Docs/manual.texi:
  Auto merged
BitKeeper/etc/logging_ok:
  Logging to logging@openlogging.org accepted

BitKeeper/etc/logging_ok

+jani@hynda.mysql.fi
 heikki@donna.mysql.fi
-jcole@abel.spaceapes.com
-jcole@tetra.spaceapes.com
 monty@donna.mysql.fi
-monty@tik.mysql.fi
-mwagner@evoq.mwagner.org
-paul@central.snake.net
-sasha@mysql.sashanet.com
-sasha@work.mysql.com
-serg@serg.mysql.com
-tim@threads.polyesthetic.msg
-tim@work.mysql.com

Docs/manual.texi

@@ -26463,6 +26463,10 @@ option to @code{configure}, and the character set configuration files
 listed in @file{SHAREDIR/charsets/Index}.
 @xref{Quick install}.
 
+If you change the character set when running MySQL (which may also
+change the sort order), you must run myisamchk -r -q on all
+tables. Otherwise your indexes may not be ordered correctly.
+
 When a client connects to a @strong{MySQL} server, the server sends the
 default character set in use to the client.  The client will switch to
 use this character set for this connection.

innobase/buf/buf0buf.c

@@ -863,6 +863,19 @@ buf_page_get_known_nowait(
 	
 	mutex_enter(&(buf_pool->mutex));
 
+	if (block->state == BUF_BLOCK_REMOVE_HASH) {
+	        /* Another thread is just freeing the block from the LRU list
+	        of the buffer pool: do not try to access this page; this
+		attempt to access the page can only come through the hash
+		index because when the buffer block state is ..._REMOVE_HASH,
+		we have already removed it from the page address hash table
+		of the buffer pool. */
+
+	        mutex_exit(&(buf_pool->mutex));
+
+		return(FALSE);
+	}
+
 #ifdef UNIV_SYNC_DEBUG
 	buf_block_buf_fix_inc_debug(block, file, line);
 #else

innobase/buf/buf0lru.c

@@ -138,6 +138,8 @@ buf_LRU_search_and_free_block(
 
 			mutex_enter(&(buf_pool->mutex));
 
+			ut_a(block->buf_fix_count == 0);
+
 			buf_LRU_block_free_hashed_page(block);
 
 			freed = TRUE;