Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757597AbZGGNUu (ORCPT ); Tue, 7 Jul 2009 09:20:50 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1756195AbZGGNUm (ORCPT ); Tue, 7 Jul 2009 09:20:42 -0400 Received: from mail-fx0-f218.google.com ([209.85.220.218]:60221 "EHLO mail-fx0-f218.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755085AbZGGNUl (ORCPT ); Tue, 7 Jul 2009 09:20:41 -0400 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=date:from:to:cc:subject:message-id:references:mime-version :content-type:content-disposition:in-reply-to:user-agent; b=MDfn1zRF8QGGPq0GgacAmKtXxzRUgdsEd4MgOchs4MRDVansVNHp+mmrKVnfq/vJCu N//iZzswhLpBi+gKG9yZ0sfltEOuAUuIvhXYkXeHEaZSVilhOfRntFcbL1aGFS6kVW8m IQFrlSogz7mF52/Ea+5JuA2GT4T0NTryFlKBc= Date: Tue, 7 Jul 2009 15:20:25 +0200 From: Jarek Poplawski To: Joao Correia Cc: Arun R Bharadwaj , Thomas Gleixner , Stephen Hemminger , netdev@vger.kernel.org, LKML , Andres Freund Subject: Re: Soft-Lockup/Race in networking in 2.6.31-rc1+195 ( possibly?caused by netem) Message-ID: <20090707132025.GB6520@ami.dom.local> References: <200907031326.21822.andres@anarazel.de> <20090706163106.GA4559@ami.dom.local> <200907061926.43625.andres@anarazel.de> <20090707065014.GA3296@ami.dom.local> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.18 (2008-05-17) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1163 Lines: 36 Sorry, here is this tiny patch! On Tue, Jul 07, 2009 at 11:40:16AM +0100, Joao Correia wrote: > I am now running 2.6.31-rc2 for a couple of hours, no freeze. > > Let me know what/if i can help with tracking down the original source > of the problem. OK, so we know it's only about timers. Here is another tiny patch (the previous one should be removed), which could tell (with oops) if there's something while migrating. Anyway, the bug should be back :-( Thanks, Jarek P. --- kernel/timer.c | 1 + 1 files changed, 1 insertions(+), 0 deletions(-) diff --git a/kernel/timer.c b/kernel/timer.c index 0b36b9e..61ba855 100644 --- a/kernel/timer.c +++ b/kernel/timer.c @@ -658,6 +658,7 @@ __mod_timer(struct timer_list *timer, unsigned long expires, spin_unlock(&base->lock); base = new_base; spin_lock(&base->lock); + BUG_ON(tbase_get_base(timer->base)); timer_set_base(timer, base); } } -- 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/