From mboxrd@z Thu Jan 1 00:00:00 1970 From: Suresh Siddha Subject: Re: Kernel oops with 2.6.26, padlock and ipsec: probably problem with fpu state changes Date: Sat, 9 Aug 2008 10:48:21 -0700 Message-ID: <20080809174821.GC13158@linux-os.sc.intel.com> References: <200807171653.59177.wolfgang.walter@stwm.de> <20080806201401.GA607@linux-os.sc.intel.com> <200808071823.02364.wolfgang.walter@stwm.de> <200808081236.55172.wolfgang.walter@stwm.de> <20080808185356.GC607@linux-os.sc.intel.com> <489C97FB.2030408@zytor.com> <20080808231121.GA13158@linux-os.sc.intel.com> <20080809003829.GA25926@gondor.apana.org.au> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: "Siddha, Suresh B" , "H. Peter Anvin" , Wolfgang Walter , "netdev@vger.kernel.org" , "linux-kernel@vger.kernel.org" , Ingo Molnar , "viro@ZenIV.linux.org.uk" , "vegard.nossum@gmail.com" To: Herbert Xu Return-path: Received: from mga09.intel.com ([134.134.136.24]:57978 "EHLO mga09.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750707AbYHIRsa (ORCPT ); Sat, 9 Aug 2008 13:48:30 -0400 Content-Disposition: inline In-Reply-To: <20080809003829.GA25926@gondor.apana.org.au> Sender: netdev-owner@vger.kernel.org List-ID: On Fri, Aug 08, 2008 at 05:38:30PM -0700, Herbert Xu wrote: > On Fri, Aug 08, 2008 at 04:11:21PM -0700, Suresh Siddha wrote: > > > > As I can't test, can you please test this and Ack. > > Someone please test this with tcrypt mode=200 with and without > the patch. Yes. I mean both perf and stability tests when I meant by "test". > If there is a significant degradation I suggest that we back out > the FPU changes. Making your competitor's processor go slow is > not a nice thing to do, especially when you've just released a > processor in the same space. Please be assured that I would like to close/adddress all the perf and stability issues and it doesn't matter whose processor it is ;)