diff -urNp qemu-kvm-orig/hw/rtl8139.c qemu-kvm/hw/rtl8139.c
--- qemu-kvm-orig/hw/rtl8139.c	2012-01-12 20:55:27.000000000 +0900
+++ qemu-kvm/hw/rtl8139.c	2012-01-18 17:20:12.000000000 +0900
@@ -824,7 +824,7 @@ static int rtl8139_can_receive(VLANClien
     } else {
         avail = MOD2(s->RxBufferSize + s->RxBufPtr - s->RxBufAddr,
                      s->RxBufferSize);
-        return (avail == 0 || avail >= 1514);
+        return (avail == 0 || avail >= 1514 || (s->IntrMask & RxOverflow));
     }
 }