On Thu, 2013-01-24 at 16:39 +0400, Sergei Shtylyov wrote:
> On 24-01-2013 14:25, Bjørn Mork wrote:
> > A device sending 0 length frames as fast as it can has been
> > observed killing the host system due to the resulting memory
> > pressure.
[]
> > diff --git a/drivers/net/usb/usbnet.c b/drivers/net/usb/usbnet.c
[]
> > + /* Do not let a device flood us to death! */
> > + if (dev->done.qlen > 1024) {
> > + netif_dbg(dev, rx_err, dev->net, "done queue filling up (%u) - throttling\n", dev->done.qlen);
> > + usbnet_defer_kevent (dev, EVENT_RX_MEMORY);
> > + usb_free_urb (urb);
>
> Run your patch thru scripts/checkpatch.pl please
And maybe ratelimit the netif_dbg
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