[linux-dvb] Re: Memory leak in dvb_net

[Johannes Stezenbach <js@linuxtv.org>]

Holger Kiehl wrote:
> Using dvbnet to receive multiple multicast data streams, I and several
> others have observed that memory is slowly going away up to a point
> where the system just hangs up. This happens with all kernels from
> 2.4.x to the latest 2.6 kernel.
> 
> Rafal Malek from Tellique has looked into this and has found that in
> linux each network device supports sending and receiving of data packets
> by default. But in the case of one-way satellite communication the
> device is not able to send data. This can be seen when monitoring
> /proc/slabinfo ip_dst_cache and some other values always go up.
> 
> Applying the following patch solves this problem:
> 
> --- drivers/media/dvb/dvb-core/dvb_net.c.orig	2004-12-01 16:11:03.000000000 +0100
> +++ drivers/media/dvb/dvb-core/dvb_net.c	2004-12-01 16:12:53.000000000 +0100
> @@ -661,6 +661,7 @@
>  
>  static int dvb_net_tx(struct sk_buff *skb, struct net_device *dev)
>  {
> +	dev_kfree_skb(skb);
>  	return 0;
>  }
>  
> Please consider applying this patch.


Applied to both HEAD and linux_2_4 branch.

Thanks a lot,
Johannes