diff -rup a/drivers/net/sb1250-mac.c b/drivers/net/sb1250-mac.c
--- a/drivers/net/sb1250-mac.c	2006-03-09 04:25:41.000000000 -0600
+++ b/drivers/net/sb1250-mac.c	2006-03-09 05:30:52.000000000 -0600
@@ -209,6 +209,7 @@ typedef struct sbmacdma_s {
 	 * This stuff is for maintenance of the ring
 	 */
 
+	sbdmadscr_t     *sbdma_dscrtable_unaligned; 
 	sbdmadscr_t     *sbdma_dscrtable;	/* base of descriptor table */
 	sbdmadscr_t     *sbdma_dscrtable_end; /* end of descriptor table */
 
@@ -740,7 +745,7 @@ static void sbdma_initctx(sbmacdma_t *d,
 
 	d->sbdma_maxdescr = maxdescr;
 
-	d->sbdma_dscrtable = (sbdmadscr_t *)
+	d->sbdma_dscrtable_unaligned = d->sbdma_dscrtable = (sbdmadscr_t *)
 		kmalloc((d->sbdma_maxdescr+1)*sizeof(sbdmadscr_t), GFP_KERNEL);
 
 	/*
@@ -1420,9 +1437,9 @@ static int sbmac_initctx(struct sbmac_so
 
 static void sbdma_uninitctx(struct sbmacdma_s *d)
 {
-	if (d->sbdma_dscrtable) {
-		kfree(d->sbdma_dscrtable);
-		d->sbdma_dscrtable = NULL;
+	if (d->sbdma_dscrtable_unaligned) {
+		kfree(d->sbdma_dscrtable_unaligned);
+		d->sbdma_dscrtable_unaligned = d->sbdma_dscrtable = NULL;
 	}
 
 	if (d->sbdma_ctxtable) {