Re: Failed assertion

[Andrew Morton <andrewm@xxxxxxxxxx>]

"David S. Miller" wrote:
> 
> Ralf Baechle writes:
>  > No backtrace, the machine did continue as you'd suspect after a print.
>  > The machine is a dual CPU Origin 200 with an IOC3 NIC.
> 
> What is your current kernel based upon, some older 2.4.x or
> even 2.3.x variant?  Or is it sync'd to current?

Could this be a driver problem?  This code:

            netif_rx(skb);

            ip->rx_skbs[rx_entry] = NULL;   /* Poison  */

            new_skb = ioc3_alloc_skb(RX_BUF_ALLOC_SIZE, GFP_ATOMIC);
            if (!new_skb) {
                /* Ouch, drop packet and just recycle packet
                   to keep the ring filled.  */
                ip->stats.rx_dropped++;
                new_skb = skb;
                goto next;
            }

looks scary.  We've passed an skb to the network stack,
but we can continue to make it available to the device
driver at the same time.

I'd suggest a printk() in there, plus perhaps do the
alloc_skb _before_ the netif_rx().  Don't pass the skb
to the stack if it is to be recycled.