netdev - Re: Macvlan WARNiNGS about duplicate sysfs filenames (Was [GIT] Networking)

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Date:	Tue, 9 Sep 2014 15:43:55 -0700
From:	Cong Wang <cwang@...pensource.com>
To:	Andres Freund <andres@...razel.de>,
	"Alexander Y. Fomichev" <git.user@...il.com>
Cc:	David Miller <davem@...emloft.net>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	netdev <netdev@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: Macvlan WARNiNGS about duplicate sysfs filenames (Was [GIT] Networking)

On Mon, Sep 8, 2014 at 2:25 PM, Andres Freund <andres@...razel.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?
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