[Xen-devel] Freeing skbs (again)

[Jacob Gorm Hansen <jacob@xxxxxxxx>]

My situation is this:

- interrupts are off
- one xenolinux network device is active
- there are buffered rx requests in the rx_ring
- I need to reset this ring in a minute
- I wish to free all the out-of-band pages allocated in my guest OS, so
they are not leaked when I reset the ring


I am trying this:

NET_RING_IDX i = np->net_idx->rx_resp_prod;

while (i != np->net_idx->rx_req_prod)
{
    unsigned short id =
np->net_ring->rx_ring[MASK_NET_RX_IDX(i++)].req.id;

    struct sk_buff* skb = np->rx_skbs[id];
    dev_kfree_skb_any(skb);
}


-- which crashes on dev_kfree_skb_any().


Can anyone tell my why I cannot free these skbs?

Thanks,
Jacob



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