From mboxrd@z Thu Jan 1 00:00:00 1970 From: Ben Hutchings Subject: Re: Bug#577640: linux-image-2.6.33-2-amd64: Kernel warnings in netns thread Date: Thu, 22 Apr 2010 01:14:38 +0100 Message-ID: <1271895278.2582.3.camel@localhost> References: <20100413112017.8505.36380.reportbug@japot.localdomain> <1271612005.3679.248.camel@localhost> Mime-Version: 1.0 Content-Type: multipart/signed; micalg="pgp-sha1"; protocol="application/pgp-signature"; boundary="=-84m/2HAnvdYHWmJcG+lz" Cc: =?ISO-8859-1?Q?Mart=EDn?= Ferrari , 577640@bugs.debian.org, netdev , "Eric W. Biederman" , Alexey Dobriyan , Mathieu Lacage To: "Eric W. Biederman" Return-path: Received: from shadbolt.e.decadent.org.uk ([88.96.1.126]:48694 "EHLO shadbolt.e.decadent.org.uk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756235Ab0DVAPD (ORCPT ); Wed, 21 Apr 2010 20:15:03 -0400 In-Reply-To: Sender: netdev-owner@vger.kernel.org List-ID: --=-84m/2HAnvdYHWmJcG+lz Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable On Wed, 2010-04-21 at 12:36 -0700, Eric W. Biederman wrote: > Mart=C3=ADn Ferrari writes: >=20 > > I'm not starting a new thread/bug, as this is probably related... > > > > I just discovered that in 2.6.33, if I create a veth inside a > > namespace and then move one of the halves into the main namespace, > > when I kill the namespace, I get one of these warnings followed by an > > oops. This does not happen if the veth is created from the main ns and > > then moved, nor in 2.6.32. This happens both in Qemu and on real > > hardware (both amd64) > > > > To reproduce: > > > > $ sudo ./startns bash > > # ip l a type veth > > # ip l s veth0 netns 1 > > # exit >=20 > Nasty weird. I did a quick test here, and I'm not seeing that. > Does the 2.6.33 experimental kernel have any patches applied? Yes, but not many beyond the stable updates, and nothing in this area. You can see the list at: http://svn.debian.org/wsvn/kernel/dists/trunk/linux-2.6/debian/patches/seri= es/base Ben. --=20 Ben Hutchings Once a job is fouled up, anything done to improve it makes it worse. --=-84m/2HAnvdYHWmJcG+lz Content-Type: application/pgp-signature; name="signature.asc" Content-Description: This is a digitally signed message part -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.10 (GNU/Linux) iQIVAwUAS8+U6ue/yOyVhhEJAQJzMxAAmWKEGGf8TvAMz1L+ovmA0JRNA/wDNQMx To/kLtlsL2mz3FcbaEi8yKh74Bbaitneoh7UVGmqCY8kk+BeegnVaZk6ZT0P974E QP+R5FIuTdWhiUX4GgLX5/ga+zrnBWVYlPA3Cm1f0ZQmJOFr82b9N15pInDiUqFw YLMuBiyuRFMUZ1Nwcr4VN+xKY+TzmO/HoSmgfa2qtr/0gIIReoIcoGWoiYsub6yx 52mgQSklf3r/+i9b9fyONdj1l0a0oAZDpP8yNm+KvzUPtj+U6V03G0gFDvko92zD LF/EI4pNmsN3wIrZ7bqwhLwFnr2GCdK+okmL7Thx6a1HSNPjtpQuwh3IIMIlmWsO wKMnbvsFPZrfjv4KXV1as1NgiCGsu/SwrIo9oGpafpw3p0h2A5cAUr1/SSvSJ/5u 5oVFceS1dHC9w0FNd6XCsSNexZYAhUVCNl+3yfDH2GWFdayWeVu1uWWiJoTBHjDC TJUHKF2RUr+RXbeC0D5RV07q9aMJv0cPIyG4SZXYgWMiKjjayn2ykW4t+0/XtTY+ EbAGrq7QFfRoDu9kGPkfaoMAfB+5phWKWKV1d95hV0PafO+dLRddjjMn6ZBalVnp bIXr30koS0o/UXQjOUz6rSsn2bjTKiWEghO7oEnHUznBGvWtmAe6K/AsmPGbb06H W+xxLQDdLRA= =IGBM -----END PGP SIGNATURE----- --=-84m/2HAnvdYHWmJcG+lz--