From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S265127AbTFMEn4 (ORCPT ); Fri, 13 Jun 2003 00:43:56 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S265132AbTFMEn4 (ORCPT ); Fri, 13 Jun 2003 00:43:56 -0400 Received: from auth22.inet.co.th ([203.150.14.104]:23301 "EHLO auth22.inet.co.th") by vger.kernel.org with ESMTP id S265127AbTFMEnz (ORCPT ); Fri, 13 Jun 2003 00:43:55 -0400 From: Michael Frank To: linux-kernel@vger.kernel.org Subject: 2.4.21-rc7 hang on boot after spurious 8259A interrupt: IRQ15. Date: Fri, 13 Jun 2003 11:36:36 +0800 User-Agent: KMail/1.5.2 X-OS: KDE 3 on GNU/Linux MIME-Version: 1.0 Content-Disposition: inline Message-Id: <200306130958.39707.mflt1@micrologica.com.hk> Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Doing swsusp testing in endless loop. On a P4/2.4G (ACPI=off) on 192nd boot: spurious 8259A interrupt: IRQ15. Calibrating delay loop... hang Hit Reset and it rebooted OK This is the first spurious 8259A interrupt: IRQ15 seen. I see spurious 8259A interrupt: IRQ7 quite frequently on varying hardware on both 2.4 and 2.5. By design, the 8259A delivers a vector 7 when the IRQ line is deasserted before the IRQ is serviced. This applies to both edge and level trigger modes. A floating "wire" or crapy chipset can pickup noise, but the driver should handle it. No problems seen with mainboard/cpu/ram in three months. I dont' think it is HW, but it could be. Also, spurious 8259A interrupts are quite recent, could something be wrong with recent 8259A driver? Regards Michael I am not subscribed, pls cc me -- Powered by linux-2.5.70-mm3, compiled with gcc-2.95-3 My current linux related activities in rough order of priority: - Testing of 2.4/2.5 kernel interactivity - Testing of Swsusp for 2.4 - Testing of Opera 7.11 emphasizing interactivity - Research of NFS i/o errors during transfer 2.4>2.5 - Learning 2.5 series kernel debugging with kgdb - it's in the -mm tree - Studying 2.5 series serial and ide drivers, ACPI, S3 * Input and feedback is always welcome *