Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755245AbaFLBOJ (ORCPT ); Wed, 11 Jun 2014 21:14:09 -0400 Received: from mail-ob0-f179.google.com ([209.85.214.179]:57670 "EHLO mail-ob0-f179.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754332AbaFLBOH (ORCPT ); Wed, 11 Jun 2014 21:14:07 -0400 MIME-Version: 1.0 In-Reply-To: <874mzrszlk.fsf@x220.int.ebiederm.org> References: <20140611133919.GZ4581@linux.vnet.ibm.com> <539879B8.4010204@canonical.com> <20140611161857.GC4581@linux.vnet.ibm.com> <53989F7B.6000004@canonical.com> <874mzr41kf.fsf@x220.int.ebiederm.org> <20140611225228.GO4581@linux.vnet.ibm.com> <87ioo7vy5s.fsf@x220.int.ebiederm.org> <20140611234902.GQ4581@linux.vnet.ibm.com> <87bntzt24g.fsf@x220.int.ebiederm.org> <874mzrszlk.fsf@x220.int.ebiederm.org> Date: Wed, 11 Jun 2014 22:14:07 -0300 Message-ID: Subject: Re: Possible netns creation and execution performance/scalability regression since v3.8 due to rcu callbacks being offloaded to multiple cpus From: Rafael Tinoco To: "Eric W. Biederman" Cc: Paul McKenney , Dave Chiluk , linux-kernel@vger.kernel.org, davem@davemloft.net, Christopher Arges , Jay Vosburgh Content-Type: text/plain; charset=UTF-8 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Ok, some misconfiguration here probably, never mind. I'll finish the tests tomorrow, compare with existent ones and let you know asap. Tks. On Wed, Jun 11, 2014 at 10:09 PM, Eric W. Biederman wrote: > Rafael Tinoco writes: > >> I'm getting a kernel panic with your patch: >> >> -- panic >> -- mount_block_root >> -- mount_root >> -- prepare_namespace >> -- kernel_init_freeable >> >> It is giving me an unknown block device for the same config file i >> used on other builds. Since my test is running on a kvm guest under a >> ramdisk, i'm still checking if there are any differences between this >> build and other ones but I think there aren't. >> >> Any chances that "prepare_namespace" might be breaking mount_root ? > > My patch boots for me.... > > Eric -- -- Rafael David Tinoco Software Sustaining Engineer @ Canonical Canonical Technical Services Engineering Team # Email: rafael.tinoco@canonical.com (GPG: 87683FC0) # Phone: +55.11.9.6777.2727 (Americas/Sao_Paulo) # LP: ~inaddy | IRC: tinoco | Skype: rafael.tinoco -- 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/