From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S939921AbXGaBYw (ORCPT ); Mon, 30 Jul 2007 21:24:52 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1756166AbXGaBYo (ORCPT ); Mon, 30 Jul 2007 21:24:44 -0400 Received: from 216-99-217-87.dsl.aracnet.com ([216.99.217.87]:49845 "EHLO sous-sol.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756123AbXGaBYn (ORCPT ); Mon, 30 Jul 2007 21:24:43 -0400 Date: Mon, 30 Jul 2007 18:23:40 -0700 From: Chris Wright To: Linus Torvalds Cc: "Rafael J. Wysocki" , Andi Kleen , LKML , Andrew Morton , Pavel Machek , Michal Piotrowski Subject: Re: [2.6.23-rc1 REGRESSION] CPU hotplug totally broken on HPC nx6325 (x86_64) Message-ID: <20070731012340.GD3673@sequoia.sous-sol.org> References: <200707261440.50649.rjw@sisk.pl> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.14 (2007-02-12) Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org * Linus Torvalds (torvalds@linux-foundation.org) wrote: > On Thu, 26 Jul 2007, Rafael J. Wysocki wrote: > > On my Turion64-based HPC nx6325 with the 2.6.23-rc1 x86_64 kernel doing > > > > # echo 0 > /sys/devices/system/cpu/cpu1/online > > > > causes the system to crash in a spectacular fashion (call traces going > > continuously on the console, no reaction to anything except for the power > > button). For this reason, suspend and hibernation don't work as well. > > Yeah, I really shouldn't have applied that patch. I didn't notice that it > not only cleaned up the direct memcpy's, it also re-introduced the damn > broken code that we fixed once already. This also fixes paravirt patching which was broken when text_poke() tried to patch the various pv ops in lookup_address. thanks, -chris