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From: Mark McLoughlin <markmc@redhat.com>
To: Rusty Russell <rusty@rustcorp.com.au>
Cc: Jeff Garzik <jeff@garzik.org>,
	netdev@vger.kernel.org,
	virtualization@lists.linux-foundation.org
Subject: Re: [PATCH 2/3] virtio: fix delayed xmit of packet and freeing of old packets.
Date: Tue, 27 May 2008 12:01:08 +0100	[thread overview]
Message-ID: <1211886068.3637.42.camel@muff> (raw)
In-Reply-To: <200805261748.13449.rusty@rustcorp.com.au>

On Mon, 2008-05-26 at 17:48 +1000, Rusty Russell wrote:
> Because we cache the last failed-to-xmit packet, if there are no
> packets queued behind that one we may never send it (reproduced here
> as TCP stalls, "cured" by an outgoing ping).

...

> diff -r 1d1ff03de434 drivers/net/virtio_net.c
> --- a/drivers/net/virtio_net.c	Mon May 26 11:03:26 2008 +1000
> +++ b/drivers/net/virtio_net.c	Mon May 26 16:37:20 2008 +1000
...
> @@ -432,6 +452,8 @@ static int virtnet_probe(struct virtio_d
>  	skb_queue_head_init(&vi->recv);
>  	skb_queue_head_init(&vi->send);
>  
> +	tasklet_init(&vi->tasklet, xmit_tasklet, (unsigned long)vi);
> +
>  	err = register_netdev(dev);

Missing a tasklet_kill() in virtnet_remove() ?

Cheers,
Mark.


  parent reply	other threads:[~2008-05-27 11:01 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-05-26  7:42 [PATCH 1/3] virtio: fix virtio_net xmit of freed skb bug Rusty Russell
2008-05-26  7:48 ` [PATCH 2/3] virtio: fix delayed xmit of packet and freeing of old packets Rusty Russell
2008-05-26  7:53   ` [PATCH 3/3] virtio: Use __skb_queue_purge() Rusty Russell
2008-05-26  8:11     ` Wang Chen
2008-05-27 11:01   ` Mark McLoughlin [this message]
2008-05-28  4:59     ` [PATCH 2/3] virtio: fix delayed xmit of packet and freeing of old packets Rusty Russell
2008-05-27 11:06 ` [PATCH 1/3] virtio: fix virtio_net xmit of freed skb bug Mark McLoughlin
2008-05-29  6:34   ` Rusty Russell
2008-06-13 14:14     ` Mark McLoughlin
2008-06-13 19:57       ` Jeff Garzik
2008-06-14  7:39       ` Rusty Russell
2008-05-31  2:12 ` Jeff Garzik

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