Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1764305AbXESTFh (ORCPT ); Sat, 19 May 2007 15:05:37 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1764161AbXESTFY (ORCPT ); Sat, 19 May 2007 15:05:24 -0400 Received: from www.osadl.org ([213.239.205.134]:33338 "EHLO mail.tglx.de" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1763976AbXESTFW (ORCPT ); Sat, 19 May 2007 15:05:22 -0400 Subject: Re: [BUG] local_softirq_pending storm From: Thomas Gleixner To: Anant Nitya Cc: linux-kernel@vger.kernel.org, Ingo Molnar In-Reply-To: <200705191525.28400.kernel@prachanda.hub> References: <200705091942.22920.kernel@prachanda.hub> <200705171211.23350.kernel@prachanda.hub> <1179493277.12981.69.camel@chaos> <200705191525.28400.kernel@prachanda.hub> Content-Type: text/plain Date: Sat, 19 May 2007 21:11:08 +0200 Message-Id: <1179601868.12981.127.camel@chaos> Mime-Version: 1.0 X-Mailer: Evolution 2.8.3 (2.8.3-2.fc6) Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 792 Lines: 26 On Sat, 2007-05-19 at 15:25 +0530, Anant Nitya wrote: > > No idea. I uploaded a debug patch against 2.6.22-rc1 to > > > > http://www.tglx.de/private/tglx/2.6.22-rc1-hrt-debug.patch > > > > Can you give it a try and report the output ? > Hi > Here it goes > [ 159.646196] NOHZ softirq pending 22 on CPU 0 > [ 159.646207] .... task state: 1 00000000 1 == TASK_INTERRUPTIBLE, so we know that ksoftirqd was not woken up. At least it is not a scheduler problem. I work out a more complex debug patch and pester you to test once I'm done. tglx - 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/