Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Thu, 15 Feb 2001 06:02:19 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Thu, 15 Feb 2001 06:02:10 -0500 Received: from omecihuatl.rz.Uni-Osnabrueck.DE ([131.173.17.35]:64519 "EHLO omecihuatl.rz.uni-osnabrueck.de") by vger.kernel.org with ESMTP id ; Thu, 15 Feb 2001 06:01:56 -0500 Date: Thu, 15 Feb 2001 11:58:44 +0100 (MET) From: ARND BERGMANN To: Francois Romieu cc: linux-kernel@vger.kernel.org Subject: Re: IRQ (routing ?) problem [was Re: epic100 in current -ac kernels] In-Reply-To: <20010210114732.A6314@se1.cogenit.fr> Message-ID: MIME-Version: 1.0 Content-Type: MULTIPART/MIXED; BOUNDARY="-559023410-1804928587-982234724=:19331" Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org This message is in MIME format. The first part should be readable text, while the remaining parts are likely unreadable without MIME-aware tools. Send mail to mime@docserver.cac.washington.edu for more info. ---559023410-1804928587-982234724=:19331 Content-Type: TEXT/PLAIN; charset=US-ASCII Sorry for the delay, I could not get physical access to the machine for the last days. I was able to do some more testing today and found this: - The problem is not the IRQ /sharing/, after getting rid of all the other PCI cards, the problem was still there. - The only thing that seems to have any effect on the symptoms is the presence of the USB driver, either usb-uhci or uhci. I am not using USB at all. As described before, the system behaves is either of those ways: * epic100 driver without DMA mapping (e.g. 2.4.0-ac9): normal operation * driver with DMA mapping+USB driver loaded: lots of interrupts -> slow * driver with DMA mapping, USB driver not loaded: hang after ~2 seconds - I sometimes get 'spurious interrupt: IRQ7', even though no device is connected there. Probably not important. On Sat, 10 Feb 2001, Francois Romieu wrote: > > The following informations may help: > - motherboard type Asus A7V, onboard USB hub and Promise ATA/100 chip > - bios revision Can't see right now, system was bought in October 2000 I think it was 1.004, but I am not sure. > - lspci -x see attachment, this was when I ripped out sound, tv and scsi > - 2.4.2pre3 + whatever recent ac epic100 = ? Still no improvement until latest -ac (2.4.1-ac13) Arnd <>< ---559023410-1804928587-982234724=:19331 Content-Type: TEXT/PLAIN; charset=US-ASCII; name=lspci-vx Content-Transfer-Encoding: BASE64 Content-ID: Content-Description: Content-Disposition: attachment; filename=lspci-vx MDA6MDAuMCBIb3N0IGJyaWRnZTogVklBIFRlY2hub2xvZ2llcywgSW5jLjog VW5rbm93biBkZXZpY2UgMDMwNSAocmV2IDAyKQ0KCVN1YnN5c3RlbTogQXN1 c3RlayBDb21wdXRlciwgSW5jLjogVW5rbm93biBkZXZpY2UgODAzMw0KCUZs YWdzOiBidXMgbWFzdGVyLCBtZWRpdW0gZGV2c2VsLCBsYXRlbmN5IDANCglN ZW1vcnkgYXQgZTcwMDAwMDAgKDMyLWJpdCwgcHJlZmV0Y2hhYmxlKSBbc2l6 ZT0xNk1dDQoJQ2FwYWJpbGl0aWVzOiBbYTBdIEFHUCB2ZXJzaW9uIDIuMA0K CUNhcGFiaWxpdGllczogW2MwXSBQb3dlciBNYW5hZ2VtZW50IHZlcnNpb24g Mg0KMDA6IDA2IDExIDA1IDAzIDA2IDAwIDEwIDIyIDAyIDAwIDAwIDA2IDAw IDAwIDAwIDAwDQoxMDogMDggMDAgMDAgZTcgMDAgMDAgMDAgMDAgMDAgMDAg MDAgMDAgMDAgMDAgMDAgMDANCjIwOiAwMCAwMCAwMCAwMCAwMCAwMCAwMCAw MCAwMCAwMCAwMCAwMCA0MyAxMCAzMyA4MA0KMzA6IDAwIDAwIDAwIDAwIGEw 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