From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752089Ab3ASQf4 (ORCPT ); Sat, 19 Jan 2013 11:35:56 -0500 Received: from mail.skyhub.de ([78.46.96.112]:40373 "EHLO mail.skyhub.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751939Ab3ASQfy (ORCPT ); Sat, 19 Jan 2013 11:35:54 -0500 Date: Sat, 19 Jan 2013 17:35:46 +0100 From: Borislav Petkov To: dAgeCKo Cc: "H. Peter Anvin" , linux-kernel@vger.kernel.org, Alan Stern , linux-usb@vger.kernel.org, Shane Huang , =?utf-8?B?SsO2cmcgUsO2ZGVs?= Subject: Re: Fwd: Linux - AMD SB950 USB Regression Message-ID: <20130119163546.GB4026@pd.tnic> Mail-Followup-To: Borislav Petkov , dAgeCKo , "H. Peter Anvin" , linux-kernel@vger.kernel.org, Alan Stern , linux-usb@vger.kernel.org, Shane Huang , =?utf-8?B?SsO2cmcgUsO2ZGVs?= References: <50C9FCD6.6050809@free.fr> <50E6AD77.1000707@free.fr> <50F036CF.7010109@free.fr> <20130117213602.GA5998@pd.tnic> <50FAB219.5020108@free.fr> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: <50FAB219.5020108@free.fr> User-Agent: Mutt/1.5.21 (2010-09-15) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Sat, Jan 19, 2013 at 03:47:53PM +0100, dAgeCKo wrote: > I can't try the solution you are giving since I can't (and don't want > to try to) downgrade my BIOS. I don't think I said that. Here's what I actually said: >> So dAgeCKo, that would be another thing you could do: try enabling >> the IOMMU in the BIOS and the above CONFIG option and the issue would >> be fixed too. IOW, you enter the BIOS, go to "NB settings" or similar and set IOMMU to Auto/Enabled. Provided you have an IOMMU but you should have that on this chipset. Then, you enable CONFIG_AMD_IOMMU in your kernel and done: the kernel uses the IOMMU hardware instead of the GART. That's it, no need for any BIOS up-/downgrading. > Another important thing you might be interested in is that not only > my USB 2 weren't working. My mainboard ethernet wasn't working to > (and was resolved with the BIOS upgrade too). The ethernet chip is: > > 03:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. > RTL8111/8168B PCI Express Gigabit Ethernet controller (rev 06) > > I don't know if that can be related to what you are saying. It could be, my nic kept resetting and once got an xmit queue timeout so it could very well be related. -- Regards/Gruss, Boris. Sent from a fat crate under my desk. Formatting is fine. --