Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751440AbWJRGfF (ORCPT ); Wed, 18 Oct 2006 02:35:05 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751448AbWJRGfF (ORCPT ); Wed, 18 Oct 2006 02:35:05 -0400 Received: from holoclan.de ([62.75.158.126]:25241 "EHLO mail.holoclan.de") by vger.kernel.org with ESMTP id S1751440AbWJRGfE (ORCPT ); Wed, 18 Oct 2006 02:35:04 -0400 Date: Wed, 18 Oct 2006 08:34:31 +0200 From: Martin Lorenz To: Jesse Brandeburg Cc: linux-kernel@vger.kernel.org Subject: un/shared IRQ problem (was: Re: 2.6.18 - another DWARF2) Message-ID: <20061018063431.GE20238@gimli> Mail-Followup-To: Jesse Brandeburg , linux-kernel@vger.kernel.org References: <20061017063710.GA27139@gimli> <4807377b0610171152tfea31c1v3f907dcaf0a58509@mail.gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <4807377b0610171152tfea31c1v3f907dcaf0a58509@mail.gmail.com> User-Agent: Mutt/1.5.13 (2006-08-11) X-Spam-Score: -1.4 (-) X-Spam-Report: Spam detection software, running on the system "www.holoclan.de", has identified this incoming email as possible spam. The original message has been attached to this so you can view it (if it isn't spam) or label similar future email. If you have any questions, see the administrator of that system for details. Content preview: On Tue, Oct 17, 2006 at 11:52:16AM -0700, Jesse Brandeburg wrote: > On 10/16/06, Martin Lorenz wrote: > >just got the following on resume: > > > >[87026.706000] [] e1000_open+0xcd/0x1a4 > >[87026.714000] DWARF2 unwinder stuck at syscall_call+0x7/0xb > >[87026.715000] Leftover inexact backtrace: > >[87026.715000] e1000: eth0: e1000_request_irq: Unable to allocate interrupt > >Error: -16 > > I'm pretty sure this isn't an e1000 problem. you need to talk to > whoever is maintaining the IRQ subsystem for x86. E1000 is attempting > to register a shared interrupt and someone has already registered that > interrupt unshared. [...] Content analysis details: (-1.4 points, 5.0 required) pts rule name description ---- ---------------------- -------------------------------------------------- -1.4 ALL_TRUSTED Passed through trusted hosts only via SMTP Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1762 Lines: 50 On Tue, Oct 17, 2006 at 11:52:16AM -0700, Jesse Brandeburg wrote: > On 10/16/06, Martin Lorenz wrote: > >just got the following on resume: > > > >[87026.706000] [] e1000_open+0xcd/0x1a4 > >[87026.714000] DWARF2 unwinder stuck at syscall_call+0x7/0xb > >[87026.715000] Leftover inexact backtrace: > >[87026.715000] e1000: eth0: e1000_request_irq: Unable to allocate interrupt > >Error: -16 > > I'm pretty sure this isn't an e1000 problem. you need to talk to > whoever is maintaining the IRQ subsystem for x86. E1000 is attempting > to register a shared interrupt and someone has already registered that > interrupt unshared. interestingly though it always involves e1000 when I see dumps like this. I already reported more of those :-) this one dosen't seem to do any harm to system stability. it occurs on every suspend/resume and I can circumvent it by disabling msi > > looks like several devices are sharing IRQ 201 (aka GSI 16) and ahci > or usb uhci_hcd is likely the problem, or the (acpi) power management > subsystem. > > Hope this helps get the right people involved. thank you gruss mlo -- Dipl.-Ing. Martin Lorenz They that can give up essential liberty to obtain a little temporary safety deserve neither liberty nor safety. Benjamin Franklin please encrypt your mail to me GnuPG key-ID: F1AAD37D get it here: http://blackhole.pca.dfn.de:11371/pks/lookup?op=get&search=0xF1AAD37D ICQ UIN: 33588107 - 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/