Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753916AbZGFRXs (ORCPT ); Mon, 6 Jul 2009 13:23:48 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752149AbZGFRXh (ORCPT ); Mon, 6 Jul 2009 13:23:37 -0400 Received: from mail-fx0-f218.google.com ([209.85.220.218]:44564 "EHLO mail-fx0-f218.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752504AbZGFRXg convert rfc822-to-8bit (ORCPT ); Mon, 6 Jul 2009 13:23:36 -0400 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:in-reply-to:references:from:date:message-id:subject:to :cc:content-type:content-transfer-encoding; b=eK1Ve0ccePbRbrJ5l1KDlT4cwLQcerq4wdfznON3yI7w3cinkExhKOz3mrxkgJS2q6 Yqs5PkGql1vwffdQqoZYfDehXx5UNH0qLlgfIa29b/g/3gcRs6CVeA5itzncVE+XMLvy dAhpB88LsMkf7d4983vEwH4JeMQ+hFyWfu/64= MIME-Version: 1.0 In-Reply-To: <20090706163106.GA4559@ami.dom.local> References: <200907031326.21822.andres@anarazel.de> <20090706141916.GA3477@ami.dom.local> <200907061813.29379.andres@anarazel.de> <20090706163106.GA4559@ami.dom.local> From: Joao Correia Date: Mon, 6 Jul 2009 18:23:18 +0100 Message-ID: Subject: Re: Soft-Lockup/Race in networking in 2.6.31-rc1+195 ( possibly?caused by netem) To: Jarek Poplawski Cc: Arun R Bharadwaj , Thomas Gleixner , Stephen Hemminger , netdev@vger.kernel.org, LKML , Andres Freund Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 8BIT Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1396 Lines: 38 Hello Since i already had the kernel compiled and ready to boot when i read this, i gave it a go anyway :-). I can reproduce the freeze with those 4 patches applied, so i can confirm that its, at least, related to, or exposed by, those patches. There must be something else too, or its just too much fuzziness, but the freeze takes a bit more time (approximately five minutes, give or take) compared to the instant freeze before, but its there with the patches, and without them, no freeze. I assume there isnt a "safe" way to get them out of current .31-rc's, right? Thank you very much for your time, Joao Correia On Mon, Jul 6, 2009 at 5:31 PM, Jarek Poplawski wrote: > On Mon, Jul 06, 2009 at 06:13:29PM +0200, Andres Freund wrote: > ... >> > > Btw, I ran netem with delay for more than 48h on around 80mbit... That >> > > does ?not exclude such a rarely triggered race, but makes it a bit more >> > > unlikely. (With migration thats around 3sec or so) > ... >> Sorry once more. > > Andres, the bisection + the above - you did 'the whole lotta work' and > you shouldn't be sorry at all! ;-) > > Thanks again, > Jarek P. > -- 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/