From owner-freebsd-usb@FreeBSD.ORG Fri Apr 15 13:40:26 2005 Return-Path: Delivered-To: freebsd-usb@hub.freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 11DDF16A4CE for ; Fri, 15 Apr 2005 13:40:26 +0000 (GMT) Received: from freefall.freebsd.org (freefall.freebsd.org [216.136.204.21]) by mx1.FreeBSD.org (Postfix) with ESMTP id DECE043D3F for ; Fri, 15 Apr 2005 13:40:25 +0000 (GMT) (envelope-from gnats@FreeBSD.org) Received: from freefall.freebsd.org (gnats@localhost [127.0.0.1]) by freefall.freebsd.org (8.13.3/8.13.3) with ESMTP id j3FDePm8089936 for ; Fri, 15 Apr 2005 13:40:25 GMT (envelope-from gnats@freefall.freebsd.org) Received: (from gnats@localhost) by freefall.freebsd.org (8.13.3/8.13.1/Submit) id j3FDePDl089935; Fri, 15 Apr 2005 13:40:25 GMT (envelope-from gnats) Date: Fri, 15 Apr 2005 13:40:25 GMT Message-Id: <200504151340.j3FDePDl089935@freefall.freebsd.org> To: freebsd-usb@FreeBSD.org From: "Julien Gabel" Subject: Re: usb/74989: (regression) Lost USB support between 5.2.1-RELEASE and 5.3-RELEASE on K7T266 Pro2. X-BeenThere: freebsd-usb@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list Reply-To: Julien Gabel List-Id: FreeBSD support for USB List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 15 Apr 2005 13:40:26 -0000 The following reply was made to PR usb/74989; it has been noted by GNATS. From: "Julien Gabel" To: "John Baldwin" Cc: freebsd-acpi@freebsd.org, bug-followup@freebsd.org, freebsd-usb@freebsd.org Subject: Re: usb/74989: (regression) Lost USB support between 5.2.1-RELEASE and 5.3-RELEASE on K7T266 Pro2. Date: Fri, 15 Apr 2005 15:31:18 +0200 (CEST) >> I made some progress here. After playing with BIOS settings, i am now >> able to: >> - Boot with ACPI enable (shutdown -p works as expected now); >> - Use USB devices. >> >> In order to do that, i had to totally disable "APIC Function" in the >> BIOS. With "APIC Function" enabled, neither version 1.4 nor 1.1 of the >> "MPS Table Version" settings solved my problem. >> >> So, although i need to disable "APIC Function", all seems to works >> correctly together: ACPI support and USB support. As a side note, i >> did not encountered anymore the interrupt storm on the uhci USB host >> controller driver. >> >> Maybe can someone explain me what may be wrong with "APIC Function", >> and if there is some drawbacks to disable it (or what is the purpose >> of this setting)? > APIC is used to route interrupts differently. You can also disable it > from the loader with 'hint.apic.0.disabled=1'. I've looked at your > dmesg's, and the problem is that in the ACPI case the IRQ 10 that your > USB controllers are using is configured as an ISA IRQ (edge/high). For > now you can either disable APIC or ACPI as a workaround until I figure > out a better solution. Thanks. I effectively prefer turn APIC off via the loader configuration than from the BIOS settings, i think it is far more easily to remember what i have done from this place. I can try patch(es) or make test(s) without problem on this machine, if any. Thanks a lot. -- -jpeg.