sig 11 in hdlc_enet_rx

Hi all,

I'm using the driver hdlc_enet.c in denx kernel 2.4.25 on a MPC880 using scc3. 
I disabled ARP that causes a lot of packet losses but from time to time I 
receive a kernel sig 11 in hdlc_enet_rx. I saw this behaviour when working 
with ENET_BIG_BUFFERS. During the night I'm doing some tests with SMALL 
BUFFERS. Anyone had the same problem?

Bye,
Antonio.