From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754189AbYI0SIo (ORCPT ); Sat, 27 Sep 2008 14:08:44 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1753598AbYI0SI1 (ORCPT ); Sat, 27 Sep 2008 14:08:27 -0400 Received: from mx2.mail.elte.hu ([157.181.151.9]:52931 "EHLO mx2.mail.elte.hu" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753505AbYI0SI0 (ORCPT ); Sat, 27 Sep 2008 14:08:26 -0400 Date: Sat, 27 Sep 2008 20:08:01 +0200 From: Ingo Molnar To: Frank Mayhar Cc: linux-kernel , Roland McGrath , Thomas Gleixner , Alexey Dobriyan , Andrew Morton , Oleg Nesterov Subject: Re: [PATCH 2.6.27-rc5 incremental re-resubmit] Fix itimer/many thread hang. Message-ID: <20080927180801.GC1108@elte.hu> References: <1221238479.30136.2.camel@bobble.smo.corp.google.com> <20080914150651.GK12522@elte.hu> <20080914150923.GB26984@elte.hu> <1221502142.19012.35.camel@bobble.smo.corp.google.com> <20080916084143.GC17287@elte.hu> <1221678187.13420.17.camel@bobble.smo.corp.google.com> <20080918102353.GD20967@elte.hu> <1222114936.21579.20.camel@bobble.smo.corp.google.com> <1222291416.30299.6.camel@bobble.smo.corp.google.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1222291416.30299.6.camel@bobble.smo.corp.google.com> User-Agent: Mutt/1.5.18 (2008-05-17) X-ELTE-VirusStatus: clean X-ELTE-SpamScore: -1.5 X-ELTE-SpamLevel: X-ELTE-SpamCheck: no X-ELTE-SpamVersion: ELTE 2.0 X-ELTE-SpamCheck-Details: score=-1.5 required=5.9 tests=BAYES_00 autolearn=no SpamAssassin version=3.2.3 -1.5 BAYES_00 BODY: Bayesian spam probability is 0 to 1% [score: 0.0000] Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org * Frank Mayhar wrote: > A couple of days ago I re-resubmitted the itimer/many thread hang. > Unfortunately, I had too many things going on at once and screwed it > up, not verifying the UP version and entirely missing a set of > cleanups that I had intended to include. This rectifies that screwup. > > At Ingo's request, this is an incremental patch, relative to the code > in his -tip tree. > > These changes have been minimally tested on both UP and SMP > environments. They simplify the UP code, consolidating pretty much > all of it with the SMP version and depending on lower-level SMP/UP > handling to take care of the differences. It also cleans up some UP > compile errors, moves the scheduler stats-related macros into > kernel/sched_stats.h, cleans up a merge error in kernel/fork.c and has > a few other minor fixes and cleanups as suggested by Oleg and Ingo. > Again, thanks for the reviews, guys. applied to tip/timers/posixtimers, thanks Frank! the additional simplifications in v2->v3: 3 files changed, 38 insertions(+), 90 deletions(-) look really good. If you dont hear from me it means -tip testing goes fine and the patches are queued up for v2.6.28. Ingo