The music folder scan goes into an infinite loop if you have a directory named "       ".  Yes, I know that's 
a weird thing to do, but iTunes did it for me because that's what the id3 tag said.

The problem is that URI->new() strips trailing whitespace, so URI->new("file:///mp3/foo/    ") turns 
into just looking at /mp3/foo again.

I looked at trying to url-escape the args to fixPath but then some other things started getting double-
escaped.  Maybe someone who knows this code better can help.  Just make a directory named "    " 
inside your music library.  The debugging ends up looking like

2004-06-10 21:30:59.3814 Descending into file:///big/mp3/billo/Brian%20Setzer%20Orchestra/, 
contains 1 items
2004-06-10 21:30:59.3827 numitems: 142
2004-06-10 21:30:59.3837 index: 0
2004-06-10 21:30:59.3852 *****fixed:                                to file:///big/mp3/billo/
Brian%20Setzer%20Orchestra/
2004-06-10 21:30:59.3861 *****base: /big/mp3/billo/Brian Setzer Orchestra/
2004-06-10 21:30:59.3870 itempath:                                and file:///big/mp3/billo/
Brian%20Setzer%20Orchestra/ made file:///big/mp3/billo/Brian%20Setzer%20Orchestra/
2004-06-10 21:30:59.3879 isList(file:///big/mp3/billo/Brian%20Setzer%20Orchestra/) == dir


Here is a hack of a patch to prevent this particular infinite loop.

Index: Slim/Utils/Scan.pm
===============================================================
====
RCS file: /cvsroot/slim/server/Slim/Utils/Scan.pm,v
retrieving revision 1.10
diff -u -r1.10 Scan.pm
--- Slim/Utils/Scan.pm	13 May 2004 17:57:36 -0000	1.10
+++ Slim/Utils/Scan.pm	11 Jun 2004 05:06:20 -0000
@@ -271,6 +271,15 @@
 	my $itempath = Slim::Utils::Misc::fixPath($item, $curdirState->path);
 	$::d_scan && msg("itempath: $item and " .  $curdirState->path . " made $itempath\n");
 
+	# XXX
+	# fixPath (really URI) strips trailing spaces from $item.
+	# if $item is all spaces, that means we just get the path again
+	# so break this loop.  This should be removed when fixPath
+	# gets fixed.
+	if ($curdirState->path eq $itempath) {
+		return 1;
+	}
+
 ######### If it's a directory or playlist and we're recursing, push it onto the stack, othwerwise add it 
to the list
 
 	$::d_scan && msg("isList(".$itempath.") == ".Slim::Music::Info::isList($itempath)."\n");