netdev - Re: [PATCH] ipv6: Don't depend on per socket memory for neighbour discovery messages

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [day] [month] [year] [list]

Message-ID: <1377699789.8277.2.camel@edumazet-glaptop>
Date:	Wed, 28 Aug 2013 07:23:09 -0700
From:	Eric Dumazet <eric.dumazet@...il.com>
To:	Thomas Graf <tgraf@...g.ch>
Cc:	davem@...emloft.net, netdev@...r.kernel.org
Subject: Re: [PATCH] ipv6: Don't depend on per socket memory for neighbour
 discovery messages

On Wed, 2013-08-28 at 01:07 +0200, Thomas Graf wrote:
> Allocating skbs when sending out neighbour discovery messages
> currently uses sock_alloc_send_skb() based on a per net namespace
> socket and thus share a socket wmem buffer space.
> 
> If a netdevice is temporarily unable to transmit due to carrier
> loss or for other reasons, the queued up ndisc messages will cosnume
> all of the wmem space and will thus prevent from any more skbs to
> be allocated even for netdevices that are able to transmit packets.
> 
> The number of neighbour discovery messages sent is very limited,
> simply use alloc_skb() and don't depend on any socket wmem space any
> longer.
> 
> This patch has orginally been posted by Eric Dumazet in a modified
> form.
> 
> Signed-off-by: Thomas Graf <tgraf@...g.ch>
> Cc: Eric Dumazet <eric.dumazet@...il.com>
> ---

Seems good to me, thanks !

Acked-by: Eric Dumazet <edumazet@...gle.com>


--
To unsubscribe from this list: send the line "unsubscribe netdev" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html