Index: radeon_dri.c
===================================================================
RCS file: /cvs/mesa/Mesa/src/mesa/drivers/dri/radeon/server/radeon_dri.c,v
retrieving revision 1.15
diff -u -r1.15 radeon_dri.c
--- radeon_dri.c	9 Dec 2004 00:18:59 -0000	1.15
+++ radeon_dri.c	17 Jan 2005 00:17:25 -0000
@@ -981,14 +981,14 @@
     * the clear ioctl to do this, but would need to setup hw state
     * first.
     */
-   memset((char *)ctx->FBAddress + info->frontOffset,
-	  0,
-	  info->frontPitch * ctx->cpp * ctx->shared.virtualHeight );
-
-   memset((char *)ctx->FBAddress + info->backOffset,
-	  0,
-	  info->backPitch * ctx->cpp * ctx->shared.virtualHeight );
-
+   {
+      int i;
+      for(i=0;i<info->frontPitch * ctx->cpp * ctx->shared.virtualHeight;i++)
+         *((char *)ctx->FBAddress + info->frontOffset + i)=0;
+      
+      for(i=0;i<info->backPitch * ctx->cpp * ctx->shared.virtualHeight;i++)
+         *((char *)ctx->FBAddress + info->backOffset + i)=0;
+   }
 
    /* This is the struct passed to radeon_dri.so for its initialization */
    ctx->driverClientMsg = malloc(sizeof(RADEONDRIRec));