diff --git a/ChangeLog b/ChangeLog
index 70d548867..0984bc599 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,13 @@
+2009-02-11  Richard Frith-Macdonald <rfm@gnu.org>
+
+	* Source/NSUnarchiver.m:
+	* Source/NSString.m:
+	* Source/Additions/GSMime.m:
+	* Source/NSData.m:
+	* Source/GSHTTPAuthentication.m:
+	* Source/NSSerializer.m:
+	Various changes to use unscanned collectable memory with GC.
+
 2009-02-11  Richard Frith-Macdonald <rfm@gnu.org>
 
 	* Source/NSNotificationCenter.m: Fix bug removing observations for
diff --git a/Source/Additions/GSMime.m b/Source/Additions/GSMime.m
index 7a6231038..c0bb8d586 100644
--- a/Source/Additions/GSMime.m
+++ b/Source/Additions/GSMime.m
@@ -1697,8 +1697,13 @@ wordData(NSString *word)
       if (tmp != nil)
 	{
 	  unsigned int	l = [tmp cStringLength] + 2;
-	  unsigned char	*b = NSZoneMalloc(NSDefaultMallocZone(), l + 1);
+	  unsigned char	*b;
 
+#if	GS_WITH_GC
+	  b = NSAllocateCollectable(l + 1, 0);
+#else
+	  b = NSZoneMalloc(NSDefaultMallocZone(), l + 1);
+#endif
 	  b[0] = '-';
 	  b[1] = '-';
 	  [tmp getCString: (char*)&b[2]];
@@ -3733,7 +3738,11 @@ appendString(NSMutableData *m, unsigned offset, unsigned fold,
   src = (const unsigned char*)[source bytes];
   end = &src[length];
 
+#if	GS_WITH_GC
+  result = (unsigned char*)NSAllocateCollectable(declen, 0);
+#else
   result = (unsigned char*)NSZoneMalloc(NSDefaultMallocZone(), declen);
+#endif
   dst = result;
 
   while ((src != end) && *src != '\0')
@@ -3859,7 +3868,11 @@ appendString(NSMutableData *m, unsigned offset, unsigned fold,
     }
   destlen = 4 * ((length + 2) / 3);
   sBuf = (unsigned char*)[source bytes];
+#if	GS_WITH_GC
+  dBuf = NSAllocateCollectable(destlen, 0);
+#else
   dBuf = NSZoneMalloc(NSDefaultMallocZone(), destlen);
+#endif
 
   destlen = encodebase64(dBuf, sBuf, length);
 
diff --git a/Source/GSHTTPAuthentication.m b/Source/GSHTTPAuthentication.m
index 27ac262b0..c58756d46 100644
--- a/Source/GSHTTPAuthentication.m
+++ b/Source/GSHTTPAuthentication.m
@@ -49,12 +49,17 @@ static GSMimeParser		*mimeParser = nil;
   unsigned		slen = [self length];
   unsigned		dlen = slen * 2;
   const unsigned char	*src = (const unsigned char *)[self bytes];
-  char			*dst = (char*)NSZoneMalloc(NSDefaultMallocZone(), dlen);
+  char			*dst;
   unsigned		spos = 0;
   unsigned		dpos = 0;
   NSData		*data;
   NSString		*string;
 
+#if	GS_WITH_GC
+  dst = (char*)NSAllocateCollectable(dlen, 0);
+#else
+  dst = (char*)NSZoneMalloc(NSDefaultMallocZone(), dlen);
+#endif
   while (spos < slen)
     {
       unsigned char	c = src[spos++];
diff --git a/Source/NSData.m b/Source/NSData.m
index f7e76abb2..85fce5454 100644
--- a/Source/NSData.m
+++ b/Source/NSData.m
@@ -515,7 +515,11 @@ failure:
 
   if (bufferSize > 0)
     {
+#if	GS_WITH_GC
+      ptr = NSAllocateCollectable(bufferSize, 0);
+#else
       ptr = NSZoneMalloc(NSDefaultMallocZone(), bufferSize);
+#endif
       if (ptr == 0)
         {
 	  DESTROY(self);
diff --git a/Source/NSSerializer.m b/Source/NSSerializer.m
index 0d5dd1476..0aadc8da4 100644
--- a/Source/NSSerializer.m
+++ b/Source/NSSerializer.m
@@ -559,7 +559,11 @@ deserializeFromInfo(_NSDeserializerInfo* info)
 	  char		*b;
 	
 	  size = (*info->deiImp)(info->data, deiSel, info->cursor);
+#if	GS_WITH_GC
+	  b = NSAllocateCollectable(size, 0);
+#else
 	  b = NSZoneMalloc(NSDefaultMallocZone(), size);
+#endif
 	  (*info->debImp)(info->data, debSel, b, size, info->cursor);
 	  s = [[StringClass alloc] initWithBytesNoCopy: b
 						length: size - 1
@@ -590,7 +594,11 @@ deserializeFromInfo(_NSDeserializerInfo* info)
 	  unichar	*b;
 	
 	  size = (*info->deiImp)(info->data, deiSel, info->cursor);
+#if	GS_WITH_GC
+	  b = NSAllocateCollectable(size*sizeof(unichar), 0);
+#else
 	  b = NSZoneMalloc(NSDefaultMallocZone(), size*sizeof(unichar));
+#endif
 	  (*info->debImp)(info->data, debSel, b, size*sizeof(unichar),
 	    info->cursor);
 	  s = [[StringClass alloc] initWithBytesNoCopy: b
diff --git a/Source/NSString.m b/Source/NSString.m
index 7c01e22d9..acaf859e5 100644
--- a/Source/NSString.m
+++ b/Source/NSString.m
@@ -894,8 +894,13 @@ handle_printf_atsign (FILE *stream,
     }
   else
     {
-      void	*buf = NSZoneMalloc(GSObjCZone(self), length);
+      void	*buf;
 
+#if	GS_WITH_GC
+      buf = NSAllocateCollectable(length, 0);
+#else
+      buf = NSZoneMalloc(GSObjCZone(self), length);
+#endif
       memcpy(buf, bytes, length);
       return [self initWithBytesNoCopy: buf
 				length: length
@@ -4615,7 +4620,11 @@ static NSFileManager *fm = nil;
 	    {
 	      unsigned char	*chars;
 	
+#if	GS_WITH_GC
+	      chars = NSAllocateCollectable(count+1, 0);
+#else
 	      chars = NSZoneMalloc(zone, count+1);
+#endif
 	      [aCoder decodeArrayOfObjCType: @encode(unsigned char)
 		                      count: count
 				         at: chars];
diff --git a/Source/NSUnarchiver.m b/Source/NSUnarchiver.m
index 212d52398..6064041d0 100644
--- a/Source/NSUnarchiver.m
+++ b/Source/NSUnarchiver.m
@@ -1116,14 +1116,12 @@ static Class NSDataMallocClass;
 	{
 	  void		*b;
 	  NSData	*d;
-	  NSZone	*z;
 
 #if	GS_WITH_GC
-	  z = GSAtomicMallocZone();
+	  b = NSAllocateCollectable(l, 0);
 #else
-	  z = zone;
+	  b = NSZoneMalloc(zone, l);
 #endif
-	  b = NSZoneMalloc(z, l);
 	  [self decodeArrayOfObjCType: @encode(unsigned char)
 				count: l
 				   at: b];