From: ebiederm@xmission•com (Eric W. Biederman)
To: Greg KH <greg@kroah•com>
Cc: Michael Leun <lkml20100708@newton•leun.net>,
netdev@vger•kernel.org, davem@davemloft•net,
linux-kernel@vger•kernel.org
Subject: Re: NET_NS: unregister_netdevice: waiting for lo to become free (after using openvpn)
Date: Wed, 04 Aug 2010 15:04:08 -0700 [thread overview]
Message-ID: <m1ocdi6nmv.fsf_-_@fess.ebiederm.org> (raw)
In-Reply-To: <20100804214618.GA6289@kroah.com> (Greg KH's message of "Wed\, 4 Aug 2010 14\:46\:18 -0700")
Greg KH <greg@kroah•com> writes:
> On Wed, Aug 04, 2010 at 03:35:43PM +0200, Michael Leun wrote:
>> Hi,
>>
>> On Sun, 11 Jul 2010 19:29:39 +0200
>> Michael Leun <lkml20100708@newton•leun.net> wrote:
>>
>> [...]
>> > Jul 10 20:02:36 doris kernel: unregister_netdevice: waiting for lo to
>> > become free. Usage count = 3 [repeated]
Does this repeat indefinitely, or are there only a couple of repetitions?
If this repeats indefinitely every 5 seconds or so we have a serious bug.
Otherwise we just have cleanup taking longer than it should, which isn't
ideal but it is much less severe.
>> > Now one might say it is fault of openvpn (used OpenVPN 2.1_rc20
>> > i586-suse-linux - the one in openSuSE 11.2 package), openvpn didn't
>> > close some ressource and ssh does fine.
>> >
>> > But: should'nt kernel clean up after process when it exits?
>> > And/or: Should'nt kernel clean up if last process in network namespace
>> > exits - there is nothing left which might use that interface?!
>> >
>> > Greg KH <greg@kroah•com> wrote:
>> >
>> > > Yes, you are correct. Care to resend all of this to the
>> > > network-namespace developer(s) and the netdev mailing list so that
>> > > the correct people are notified so they can fix it all?
>> >
>> > [X] done - hopefully, cannot find a particular network namespace
>> > developer in MAINTAINERS or source files. If such a one exists, please
>> > forward.
>>
>> Did'nt work. Got no reaction from network mailinglist at all and bug
>> still is in 2.6.35.
>
> Eric, here's a bug with the network namespace stuff, care to work on
> resolving it?
Greg thanks for forwarding this in my direction.
Eric
next prev parent reply other threads:[~2010-08-04 22:04 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <loom.20100708T183152-326@post.gmane.org>
[not found] ` <20100709235744.GA12752@kroah.com>
[not found] ` <20100710101540.2799c9ef@xenia.leun.net>
[not found] ` <20100710140800.GA20424@kroah.com>
[not found] ` <20100710165208.59272ae6@xenia.leun.net>
[not found] ` <20100710235323.5336f627@xenia.leun.net>
2010-07-11 17:29 ` FW: NET_NS: unregister_netdevice: waiting for lo to become free (after using openvpn) (was Re: sysfs bug when using tun with network namespaces) Michael Leun
2010-08-04 13:35 ` Michael Leun
2010-08-04 21:46 ` Greg KH
2010-08-04 22:04 ` Eric W. Biederman [this message]
2010-08-04 22:11 ` Michael Leun
2010-08-05 0:12 ` Eric W. Biederman
2010-08-05 9:25 ` Michael Leun
2010-08-05 9:51 ` NET_NS: unregister_netdevice: waiting for lo to become free (after using openvpn) Eric W. Biederman
2010-08-05 10:13 ` Michael Leun
2010-08-05 11:47 ` NET_NS: unregister_netdevice: waiting for lo to become free (adding ipv6 address to interface) Michael Leun
2010-08-05 19:57 ` Eric W. Biederman
2010-08-05 20:11 ` David Miller
2010-08-05 23:45 ` lkml20100708
2010-08-06 0:09 ` Michael Leun
2010-10-21 15:15 ` Michael Leun
2010-10-22 12:48 ` David Lamparter
2010-10-22 17:05 ` Michael Leun
2010-10-24 13:15 ` Michael Leun
2010-12-06 16:08 ` Menil Jean-Philippe
2010-12-06 21:22 ` Eric W. Biederman
2010-12-06 22:47 ` Michael Leun
2010-12-07 10:40 ` Menil Jean-Philippe
2010-08-05 16:57 ` NET_NS: unregister_netdevice: waiting for lo to become free (after using openvpn) Ben Greear
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=m1ocdi6nmv.fsf_-_@fess.ebiederm.org \
--to=ebiederm@xmission$(echo .)com \
--cc=davem@davemloft$(echo .)net \
--cc=greg@kroah$(echo .)com \
--cc=linux-kernel@vger$(echo .)kernel.org \
--cc=lkml20100708@newton$(echo .)leun.net \
--cc=netdev@vger$(echo .)kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox