Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754041AbWLRPoP (ORCPT ); Mon, 18 Dec 2006 10:44:15 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1754096AbWLRPoP (ORCPT ); Mon, 18 Dec 2006 10:44:15 -0500 Received: from ebiederm.dsl.xmission.com ([166.70.28.69]:57039 "EHLO ebiederm.dsl.xmission.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754041AbWLRPoO (ORCPT ); Mon, 18 Dec 2006 10:44:14 -0500 From: ebiederm@xmission.com (Eric W. Biederman) To: Tobias Diedrich Cc: Linus Torvalds , Linux Kernel Mailing List , Andi Kleen , Yinghai Lu , Andrew Morton Subject: Re: IO-APIC + timer doesn't work References: <20061216174536.GA2753@melchior.yamamaya.is-a-geek.org> <20061216225338.GA2616@melchior.yamamaya.is-a-geek.org> <20061216230605.GA2789@melchior.yamamaya.is-a-geek.org> <20061217145714.GA2987@melchior.yamamaya.is-a-geek.org> <20061218152333.GA2400@melchior.yamamaya.is-a-geek.org> Date: Mon, 18 Dec 2006 08:43:36 -0700 In-Reply-To: <20061218152333.GA2400@melchior.yamamaya.is-a-geek.org> (Tobias Diedrich's message of "Mon, 18 Dec 2006 16:23:34 +0100") Message-ID: User-Agent: Gnus/5.110006 (No Gnus v0.6) Emacs/21.4 (gnu/linux) MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1257 Lines: 32 Tobias Diedrich writes: > Eric W. Biederman wrote: >> Could you try removing the clear_IO_APIC_pin from try_io_apic_pin. >> >> This isn't a complete fix but I believe for your hardware it will >> fix the problem and it points at what the real fix is. >> >> Not properly programming the io_apic for the case we want to test. > > Yes, this works: Thanks. The bug is simply that the new code doesn't setup the ioapic for the cases it intends to test. But it does clear out the original programming. So if the normal good case doesn't work the code is going to have problems. > I can also report, that updating the BIOS to version 0609 (released > last week or so, also adds the long-missing HPET support) also makes > the problem go away since the first testcase then already works. > I'm currently running with the BIOS downgraded to version 0402. Nice to hear, so this is clearly a software setup problem in the BIOS. Andi do you think you could address this problem? Eric - 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/