On 20/01/14 22:03, Wei Liu wrote:
On Mon, Jan 20, 2014 at 09:24:28PM +, Zoltan Kiss wrote:
@@ -557,12 +577,25 @@ void xenvif_disconnect(struct xenvif *vif)
void xenvif_free(struct xenvif *vif)
{
int i, unmap_timeout = 0;
+ /* Here we want to avoid timeout messages if an skb
On Mon, Jan 20, 2014 at 10:03:48PM +, Wei Liu wrote:
[...]
>
> You beat me to this. Was about to reply to your other email. :-)
>
> It's also worth mentioning that DIV_ROUND_UP part is merely estimation,
> as you cannot possible know the maximum / miminum queue length of all
> other vifs (as
On Mon, Jan 20, 2014 at 09:24:28PM +, Zoltan Kiss wrote:
> A malicious or buggy guest can leave its queue filled indefinitely, in which
> case qdisc start to queue packets for that VIF. If those packets came from an
> another guest, it can block its slots and prevent shutdown. To avoid that, we
A malicious or buggy guest can leave its queue filled indefinitely, in which
case qdisc start to queue packets for that VIF. If those packets came from an
another guest, it can block its slots and prevent shutdown. To avoid that, we
make sure the queue is drained in every 10 seconds.
The QDisc queu
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