Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757970AbXK3I7m (ORCPT ); Fri, 30 Nov 2007 03:59:42 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1750987AbXK3I72 (ORCPT ); Fri, 30 Nov 2007 03:59:28 -0500 Received: from rv-out-0910.google.com ([209.85.198.187]:17161 "EHLO rv-out-0910.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750750AbXK3I71 (ORCPT ); Fri, 30 Nov 2007 03:59:27 -0500 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=received:message-id:date:from:to:subject:cc:in-reply-to:mime-version:content-type:content-transfer-encoding:content-disposition:references; b=DIxpZotijhU4DbA+XVSmk1nl8flVFoBMm3g+roJfou+gdqLe+Dp/tD2D/NfZ1fw/n86l0+o+U2lQf7ttcR6cACkQykhpLS5lniH6irZ1Hmo99eSJL+zRRi0uYM8AKUgYdZg+DUit+mcJiZEdlkcsePeEXJlFYk4UQBwoN3O0qAM= Message-ID: <86802c440711300059tb8bf924i72a9eca29723499f@mail.gmail.com> Date: Fri, 30 Nov 2007 00:59:26 -0800 From: "Yinghai Lu" To: "Eric W. Biederman" Subject: Re: [PATCH] kexec: force x86_64 arches to boot kdump kernels on boot cpu Cc: "Ben Woodard" , "Vivek Goyal" , "Neil Horman" , kexec@lists.infradead.org, linux-kernel@vger.kernel.org, "Andi Kleen" , hbabu@us.ibm.com, "Andi Kleen" In-Reply-To: MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Content-Disposition: inline References: <20071127200011.GA3703@redhat.com> <20071127222408.GH24223@one.firstfloor.org> <474CA733.9050908@redhat.com> <20071128153649.GC3192@redhat.com> <20071128160206.GA21286@hmsendeavour.rdu.redhat.com> <20071128190525.GD3192@redhat.com> <474F7290.8010504@redhat.com> Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1207 Lines: 33 On Nov 29, 2007 6:54 PM, Eric W. Biederman wrote: > Ben Woodard writes: > > > > Eric W. Biederman wrote: > >> Vivek Goyal writes: > >> > >>> Ok. Got it. So in this case we route the interrupts directly through LAPIC > >>> and put LVT0 in ExtInt mode and IOAPIC is bypassed. > >>> > >>> I am looking at Intel Multiprocessor specification v1.4 and as per figure > >>> 3-3 on page 3-9, 8259 is connected to LINTIN0 line, which in turn is > >>> connected to LINTIN0 pin on all processors. If that is the case, even in > >>> this mode, all the CPU should see the timer interrupts (which is coming > >>> from 8259)? > >> there is two mode for mcp55. bios should have one option about virtul wired to LVT0 of BSP or IOAPIC pin 0. or the option like hpet route to ioapic pin 2. for kdump fix, could enable LVT0 of CPU for kdump and disable that for BSP? ben, can you send out lspci -vvxxx -s 00:1.0 YH - 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/