From: Andi Kleen <andi@firstfloor.org>
To: David Miller <davem@davemloft.net>
Cc: vgusev@openvz.org, kuznet@ms2.inr.ac.ru, netdev@vger.kernel.org
Subject: Re: [PATCH] Discard tcp out-of-order queue if system limit is reached
Date: Wed, 16 Apr 2008 09:01:45 +0200 [thread overview]
Message-ID: <4805A459.5050706@firstfloor.org> (raw)
In-Reply-To: <20080415.202740.114756353.davem@davemloft.net>
David Miller wrote:
> From: Vitaliy Gusev <vgusev@openvz.org>
> Date: Tue, 15 Apr 2008 18:54:44 +0400
>
>> tcp_prune_queue() doesn't prune an out-of-order queue if socket
>> is under rcvbuf. However even if socket is under rcvbuf but system-wide limit is
>> reached then skb cannot be queued. It can lead to deadlock situation as any skb that
>> fills sequence hole is dropped.
>> So discard out-of-order queue if system-wide limit is reached.
>>
>> Signed-off-by: Vitaliy Gusev <vgusev@openvz.org>
>
> I applied your original patch already, so I added the following
> relative patch.
Could you please at least update the original description to the
one from the new patch? That one was somewhat misleading imho.
-Andi
next prev parent reply other threads:[~2008-04-16 7:02 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-04-15 14:54 [PATCH] Discard tcp out-of-order queue if system limit is reached Vitaliy Gusev
2008-04-15 14:58 ` Andi Kleen
2008-04-15 15:22 ` Stephen Hemminger
2008-04-16 3:27 ` David Miller
2008-04-16 7:01 ` Andi Kleen [this message]
2008-04-16 7:08 ` David Miller
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