Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1761254AbYARNbU (ORCPT ); Fri, 18 Jan 2008 08:31:20 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1758120AbYARNbM (ORCPT ); Fri, 18 Jan 2008 08:31:12 -0500 Received: from py-out-1112.google.com ([64.233.166.180]:3331 "EHLO py-out-1112.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756031AbYARNbL (ORCPT ); Fri, 18 Jan 2008 08:31:11 -0500 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=message-id:date:from:reply-to:user-agent:mime-version:to:cc:subject:references:in-reply-to:content-type:content-transfer-encoding; b=vcyFyQEJJmkiwc7oEr3imZj6Rza+yF4tVgcZ1wHLfeBlXlYm1HaNjm4KQji0uFvoGIR6AlXPdWS5u4QGhpknRhyfcyzLYBdS/mr2k91BMGv81KZms7gtEzd2C8DXLhbQUcUAKvwbeo7yCVc4psNsGRBAZeGGfXo6LPRvT1T5fjM= Message-ID: <4790AA17.6080907@gmail.com> Date: Fri, 18 Jan 2008 08:31:03 -0500 From: Gregory Haskins Reply-To: gregory.haskins@gmail.com User-Agent: Thunderbird 2.0.0.9 (Windows/20071031) MIME-Version: 1.0 To: gregory.haskins@gmail.com CC: linux@sundmangroup.com, linux-kernel@vger.kernel.org, Ingo Molnar , rostedt@goodmis.org Subject: Re: SCHED_FIFO & system() References: <37593.147.11.3.128.1200565147.squirrel@www.sundmangroup.com> <4790A6C0.7070002@gmail.com> In-Reply-To: <4790A6C0.7070002@gmail.com> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 923 Lines: 30 Gregory Haskins wrote: > > (*) I have no information on whether the futex-plist implemetation was > pulled from the tree to cause your regression. It is possible that the > changes between 22 and 23 are just tickling your environment enough to > bring out this RT-preempt issue. > Hmm...seems I should not send out email before my morning coffee ;) I think I was answering http://lkml.org/lkml/2008/1/18/43 having read them back to back. Sorry for the confusion. There's a chance that this is what is causing your issue, Matias, but you should also confirm that what this module is doing doesn't disable preemption. That would also cause the issue. HTH -Greg -- 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/