From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S261729AbUKIWXQ (ORCPT ); Tue, 9 Nov 2004 17:23:16 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261717AbUKIWXQ (ORCPT ); Tue, 9 Nov 2004 17:23:16 -0500 Received: from smtp07.auna.com ([62.81.186.17]:61363 "EHLO smtp07.retemail.es") by vger.kernel.org with ESMTP id S261711AbUKIWWy convert rfc822-to-8bit (ORCPT ); Tue, 9 Nov 2004 17:22:54 -0500 Date: Tue, 09 Nov 2004 22:22:30 +0000 From: "J.A. Magallon" Subject: Re: [patch] e100 and shared interrupts [was: Spurious interrupts when SCI shared with e100] To: linux-kernel@vger.kernel.org References: <20041108115955.1c8bf10f.us15@os.inf.tu-dresden.de> <418FDD0A.5010308@akamai.com> In-Reply-To: <418FDD0A.5010308@akamai.com> (from pswain@akamai.com on Mon Nov 8 21:54:34 2004) X-Mailer: Balsa 2.2.5 Message-Id: <1100038950l.6523l.0l@werewolf.able.es> MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Disposition: inline Content-Transfer-Encoding: 7BIT Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On 2004.11.08, peter swain wrote: > Udo A. Steinberg wrote: > > >My laptop has IRQ9 configured as ACPI SCI. When IRQ9 is shared between ACPI > >and e100 an IRQ9 storm occurs when e100 is enabled, as can be seen in the > >dmesg output below. The kernel then disables IRQ9, thus preventing e100 from > >working properly. The problem does not occur, if I override the default PCI > >steering in the BIOS, e.g. by routing LNKA to IRQ11. > > > >Nonetheless it would be good if someone could figure out why sharing IRQ9 > >is problematic. > > > > > Udo, please try the attached 2.6.9 patch. > With this patch, I still get things like this: Nov 9 22:24:14 nada kernel: e100: Intel(R) PRO/100 Network Driver, 3.2.3-k2-NAPI Nov 9 22:24:14 nada kernel: e100: Copyright(c) 1999-2004 Intel Corporation Nov 9 22:24:14 nada kernel: ACPI: PCI interrupt 0000:00:0d.0[A] -> GSI 19 (level, low) -> IRQ 185 Nov 9 22:24:14 nada kernel: e100: eth0: e100_probe: addr 0xf7161000, irq 185, MAC addr 00:30:48:41:22:9F Nov 9 22:24:14 nada kernel: Badness in enable_irq at kernel/irq/manage.c:106 Nov 9 22:24:14 nada kernel: [enable_irq+178/256] enable_irq+0xb2/0x100 Nov 9 22:24:14 nada kernel: [] enable_irq+0xb2/0x100 Nov 9 22:24:14 nada kernel: [pg0+1078951656/1337152512] e100_up+0xe8/0x1f0 [e100] Nov 9 22:24:14 nada kernel: [] e100_up+0xe8/0x1f0 [e100] Nov 9 22:24:14 nada kernel: [pg0+1078955962/1337152512] e100_open+0x2a/0x90 [e100] Nov 9 22:24:14 nada kernel: [] e100_open+0x2a/0x90 [e100] Nov 9 22:24:14 nada kernel: [dev_open+116/144] dev_open+0x74/0x90 Nov 9 22:24:14 nada kernel: [] dev_open+0x74/0x90 Nov 9 22:24:14 nada kernel: [dev_change_flags+86/304] dev_change_flags+0x56/0x130 Nov 9 22:24:14 nada kernel: [] dev_change_flags+0x56/0x130 Nov 9 22:24:14 nada kernel: [devinet_ioctl+1522/1696] devinet_ioctl+0x5f2/0x6a0 Nov 9 22:24:14 nada kernel: [] devinet_ioctl+0x5f2/0x6a0 Nov 9 22:24:14 nada kernel: [inet_ioctl+223/256] inet_ioctl+0xdf/0x100 Nov 9 22:24:14 nada kernel: [] inet_ioctl+0xdf/0x100 Nov 9 22:24:14 nada kernel: [sock_ioctl+435/624] sock_ioctl+0x1b3/0x270 Nov 9 22:24:14 nada kernel: [] sock_ioctl+0x1b3/0x270 Nov 9 22:24:14 nada kernel: [fget+73/96] fget+0x49/0x60 Nov 9 22:24:14 nada kernel: [] fget+0x49/0x60 Nov 9 22:24:14 nada kernel: [sys_ioctl+517/624] sys_ioctl+0x205/0x270 Nov 9 22:24:14 nada kernel: [] sys_ioctl+0x205/0x270 Nov 9 22:24:14 nada kernel: [sysenter_past_esp+82/113] sysenter_past_esp+0x52/0x71 Nov 9 22:24:14 nada kernel: [] sysenter_past_esp+0x52/0x71 Nov 9 22:24:14 nada kernel: e100: eth0: e100_watchdog: link up, 100Mbps, full-duplex -- J.A. Magallon \ Software is like sex: werewolf!able!es \ It's better when it's free Mandrakelinux release 10.2 (Cooker) for i586 Linux 2.6.9-jam1 (gcc 3.4.1 (Mandrakelinux 10.1 3.4.1-4mdk)) #10