Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758043AbYGTPpV (ORCPT ); Sun, 20 Jul 2008 11:45:21 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1757238AbYGTPpI (ORCPT ); Sun, 20 Jul 2008 11:45:08 -0400 Received: from cantor2.suse.de ([195.135.220.15]:55090 "EHLO mx2.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1757138AbYGTPpG (ORCPT ); Sun, 20 Jul 2008 11:45:06 -0400 Date: Sun, 20 Jul 2008 17:44:56 +0200 From: Bernhard Walle To: Bernhard Walle Cc: Dave Hansen , Vegard Nossum , Greg KH , Mariusz Kozlowski , Stephen Rothwell , kernel-testers@vger.kernel.org, linux-next@vger.kernel.org, LKML , Pekka Enberg , Ingo Molnar , Vivek Goyal , kexec Subject: Re: linux-next: Tree for July 18: warning at kernel/lockdep.c:2068 trace_hardirqs_on_caller Message-ID: <20080720174456.55e41e8b@kopernikus.site> In-Reply-To: <20080720150341.7cd381c2@kopernikus.site> References: <20080718195352.e562a00f.sfr@canb.auug.org.au> <200807190928.33978.m.kozlowski@tuxland.pl> <19f34abd0807190255x304173d4wf2bfabb2d5bce511@mail.gmail.com> <19f34abd0807190559y2fe5ebf9h7095793e82de3122@mail.gmail.com> <20080719221723.GB5578@suse.de> <19f34abd0807191527u61c5ed61kffe2279c8d46915d@mail.gmail.com> <19f34abd0807191544nfd73be5nf7dde4b61992a7e8@mail.gmail.com> <20080719225817.GA6264@suse.de> <19f34abd0807191611y7cabf405iad307ba79591e04f@mail.gmail.com> <1216544462.9311.20.camel@nimitz> <20080720150341.7cd381c2@kopernikus.site> Organization: SUSE LINUX Products GmbH X-Mailer: Claws Mail 3.5.0 (GTK+ 2.12.11; i686-pc-linux-gnu) X-Face: ,G!z)dEOMkc[Cu+sF64,T9^5r3b>/}#HBRL%D^j@\SZbr'Itl7q@1<*dgB?A7(_leO1Tc4^ D*WfvfwKcz;,@E^y+pNP%86n8o<&g-vToCXW:r>Y$jxY,`KT?{H!07=2|Jdt?0ba^C-Tnx50vIV8It vi&Sicl:sj`k2`y)E;ECFi;i7W-?t3%\kD*));q)+%-pQd^.r'W}oBBx=+.~Gu}&F;lS7.a-m>Rv"w pe`D'OV^?HJd$-)7<2T[naDPl6+bAj'+UYd]u]B^'.LYK$2jS Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1088 Lines: 29 * Bernhard Walle [2008-07-20 15:03]: > > Because I didn't know that interface. And because I don't see that > interface on my two systems that I just checked. i386 and x86-64. What > do I have to do to enable that interface? That interface depends on CONFIG_MEMORY_HOTPLUG. But given to that dependency list, 128 config MEMORY_HOTPLUG 129 bool "Allow for memory hot-add" 130 depends on SPARSEMEM || X86_64_ACPI_NUMA 131 depends on HOTPLUG && !HIBERNATION && ARCH_ENABLE_MEMORY_HOTPLUG 132 depends on (IA64 || X86 || PPC64 || SUPERH || S390) that interface is off on *many* systems (i386, x86_64), so we can't rely on that interface in kexec. I think on POWER it's much more common than on PC architectures. Bernhard -- Bernhard Walle, SUSE LINUX Products GmbH, Architecture Development -- 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/