linux-kernel - Re: [PATCH net v2 0/4] net: add and use rx

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Date:	Sat, 30 Jan 2016 13:16:48 -0500
From:	Jarod Wilson <jarod@...hat.com>
To:	David Miller <davem@...emloft.net>
Cc:	linux-kernel@...r.kernel.org, edumazet@...gle.com,
	jiri@...lanox.com, daniel@...earbox.net, tom@...bertland.com,
	j.vosburgh@...il.com, vfalico@...il.com, gospo@...ulusnetworks.com,
	netdev@...r.kernel.org
Subject: Re: [PATCH net v2 0/4] net: add and use rx_nohandler stat counter

On Fri, Jan 29, 2016 at 07:37:51PM -0800, David Miller wrote:
> From: Jarod Wilson <jarod@...hat.com>
> Date: Thu, 28 Jan 2016 10:49:44 -0500
> 
> > The network core tries to keep track of dropped packets, but some packets
> > you wouldn't really call dropped, so much as intentionally ignored, under
> > certain circumstances. One such case is that of bonding and team device
> > slaves that are currently inactive. Their respective rx_handler functions
> > return RX_HANDLER_EXACT (the only places in the kernel that return that),
> > which ends up tracking into the network core's __netif_receive_skb_core()
> > function's drop path, with no pt_prev set. On a noisy network, this can
> > result in a very rapidly incrementing rx_dropped counter, not only on the
> > inactive slave(s), but also on the master device, such as the following:
>  ...
> 
> Both my inbox and patchwork only show patch 2, 3, and 4.  Where is #1?

Crap. It seems I fat-fingered netdev@...r.kernel.org without the v in
front of ger. Will re-send in a sec, hopefully finallly not screwing it up
this time.

-- 
Jarod Wilson
jarod@...hat.com