Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753351AbaJTUyE (ORCPT ); Mon, 20 Oct 2014 16:54:04 -0400 Received: from 75-148-32-185-Colorado.hfc.comcastbusiness.net ([75.148.32.185]:44517 "EHLO mail.scrye.com" rhost-flags-OK-FAIL-OK-OK) by vger.kernel.org with ESMTP id S1752835AbaJTUyB (ORCPT ); Mon, 20 Oct 2014 16:54:01 -0400 Date: Mon, 20 Oct 2014 14:53:59 -0600 From: Kevin Fenzi To: Dave Jones Cc: netdev@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: localed stuck in recent 3.18 git in copy_net_ns? Message-ID: <20141020145359.565fe5e6@voldemort.scrye.com> In-Reply-To: <20141020204326.GA25668@redhat.com> References: <20141020141515.0688bf33@voldemort.scrye.com> <20141020204326.GA25668@redhat.com> Organization: Scrye, INC X-Mailer: Claws Mail 3.10.1 (GTK+ 2.24.25; x86_64-redhat-linux-gnu) MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha512; boundary="Sig_/CWmk_C.B8yfFdG+vV4mMMgc"; protocol="application/pgp-signature" Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org --Sig_/CWmk_C.B8yfFdG+vV4mMMgc Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: quoted-printable On Mon, 20 Oct 2014 16:43:26 -0400 Dave Jones wrote: > I've seen similar soft lockup traces from the sys_unshare path when > running my fuzz tester. It seems that if you create enough network > namespaces, it can take a huge amount of time for them to be iterated. > (Running trinity with '-c unshare' you can see the slow down happen. > In some cases, it takes so long that the watchdog process kills it -- > though the SIGKILL won't get delivered until the unshare() completes) >=20 > Any idea what this machine had been doing prior to this that may have > involved creating lots of namespaces ? That was right after boot. ;)=20 This is my main rawhide running laptop. A 'ip netns list' shows nothing. kevin --Sig_/CWmk_C.B8yfFdG+vV4mMMgc Content-Type: application/pgp-signature; name=signature.asc Content-Disposition: attachment; filename=signature.asc -----BEGIN PGP SIGNATURE----- Version: GnuPG v2 iQIcBAEBCgAGBQJURXZnAAoJEEs3sNgP+7teqmMQAL3/ZMJpSBj0A7EhePGt5t/J 4TQhLmj4I4k2bT/HGBbFaWAM/n/6S8CRF5yIBMwlb2XsiBYBOtZDpinmjK6/Scub hSNC08tWT7ZbdJFVAaqW1y9mKEHq+GAg1vhYjqTnncU7EO/y/MD9SrGUfFm9zfDH hJ8M6EtqHfGprj48wom2l0Ec5T12L2qioNqW5UyFC3ygpsawmeaok6zoOAZCJAb4 M3Jsty8L8U+NLcMYaTe3su/ax45zY60Kk1b8yu+K4qI9hEeGlrVFpFdZO+5D77Me N1V8KR1OKtxH+fomwdi8Vegt9b9JPR69j7YnuMxVG9CZMGUGvX/xdFcmBm/ij0ea 9kYE0doteCTjGhCptYEF4d6zqLip1SuvDVNNs2P+DBIf907PXZr+3aPz3H08BASY ydu1tsz8m+eoivZoLHq7Knw4iog/4AyQOKfoCwN/PU7eBNWCY56Vxm7u4d9CSEtJ VAVV60+29bBGjlgTeZbOlwxvUitq/4667vMJ9j8mNBmd0/UHnFPXgNxJDvqAI+JN AAC86tDscMdoEu4lhIFkgfma6jAmrZmUlTQTPcYNcROjSSFj/BSeejC/GpqUr71Y bwC3TFxLA9Ltn62dExDDhgGnNm/4xrKH7SGyObegdyvwWBMc3Nvko0XAr4BXxSnl cON3fSGC2+/Fv8MFIROJ =sHf9 -----END PGP SIGNATURE----- --Sig_/CWmk_C.B8yfFdG+vV4mMMgc-- -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/