Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1161104AbWBHQtY (ORCPT ); Wed, 8 Feb 2006 11:49:24 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1161102AbWBHQtX (ORCPT ); Wed, 8 Feb 2006 11:49:23 -0500 Received: from e5.ny.us.ibm.com ([32.97.182.145]:27350 "EHLO e5.ny.us.ibm.com") by vger.kernel.org with ESMTP id S1161104AbWBHQtX (ORCPT ); Wed, 8 Feb 2006 11:49:23 -0500 Subject: Re: preempt-rt, NUMA and strange latency traces From: john stultz To: =?ISO-8859-1?Q?S=E9bastien_Dugu=E9?= Cc: Steven Rostedt , "linux-kernel@vger.kernel.org" , Ingo Molnar In-Reply-To: <1139395534.21471.13.camel@frecb000686> References: <1139311689.19708.36.camel@frecb000686> <1139395534.21471.13.camel@frecb000686> Content-Type: text/plain; charset=UTF-8 Date: Wed, 08 Feb 2006 08:49:28 -0800 Message-Id: <1139417369.16302.1.camel@leatherman> Mime-Version: 1.0 X-Mailer: Evolution 2.2.3 (2.2.3-2.fc4) Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 571 Lines: 17 On Wed, 2006-02-08 at 11:45 +0100, Sébastien Dugué wrote: > The more I think about it, the more I tend to believe it's hardware > related. It seems as if the CPU just hangs for ~27 ms before > resuming processing. That sounds like to the ~30ms RSA caused SMIs. Does this system have an RSA1 or RSA2 card? thanks -john - 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/