From mboxrd@z Thu Jan  1 00:00:00 1970
From: Cong Wang <cwang@twopensource.com>
Subject: Re: Macvlan WARNiNGS about duplicate sysfs filenames (Was [GIT] Networking)
Date: Tue, 9 Sep 2014 15:43:55 -0700
Message-ID: <CAHA+R7NCwhMaWX0Mhr7AqHH4x5RZ6TEEiJB7906yVzQouXD3Lg@mail.gmail.com>
References: <20140907.164109.1944849896872238507.davem@davemloft.net>
	<20140908212514.GA2348@awork2.anarazel.de>
Mime-Version: 1.0
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Cc: David Miller <davem@davemloft.net>,
	Linus Torvalds <torvalds@linux-foundation.org>,
	Andrew Morton <akpm@linux-foundation.org>,
	netdev <netdev@vger.kernel.org>,
	"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
To: Andres Freund <andres@anarazel.de>,
	"Alexander Y. Fomichev" <git.user@gmail.com>
Return-path: <linux-kernel-owner@vger.kernel.org>
In-Reply-To: <20140908212514.GA2348@awork2.anarazel.de>
Sender: linux-kernel-owner@vger.kernel.org
List-Id: netdev.vger.kernel.org

On Mon, Sep 8, 2014 at 2:25 PM, Andres Freund <andres@anarazel.de> wrote:
> Hi,
>
> (don't have netdev archived, thus answering here, sorry)
>
> On 2014-09-07 16:41:09 -0700, David Miller wrote:
>> Alexander Y. Fomichev (1):
>>       net: prevent of emerging cross-namespace symlinks
>

Since you are quoting this change, are you saying it causes
the following kernel warning?


> I'm seeing WARNINGs like:
> [ 1005.269134] ------------[ cut here ]------------
> [ 1005.269148] WARNING: CPU: 6 PID: 4213 at fs/sysfs/dir.c:31 sysfs_warn_dup+0x64/0x80()
> [ 1005.269150] sysfs: cannot create duplicate filename '/devices/pci0000:00/0000:00:1c.4/0000:03:00.0/net/eth0/upper_mv-eth0'


Is there a network device named upper_mv-eth0 existed in your system
before you created macvlan?