Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752539AbbDPUNl (ORCPT ); Thu, 16 Apr 2015 16:13:41 -0400 Received: from mail-wi0-f172.google.com ([209.85.212.172]:36167 "EHLO mail-wi0-f172.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752282AbbDPUNe (ORCPT ); Thu, 16 Apr 2015 16:13:34 -0400 MIME-Version: 1.0 In-Reply-To: <20150416184252.GE7388@x230.dumpdata.com> References: <552FCD25.9060807@gmail.com> <20150416184252.GE7388@x230.dumpdata.com> Date: Thu, 16 Apr 2015 22:13:33 +0200 Message-ID: Subject: Re: Error: DMA: Out of SW-IOMMU space [was: External USB drives become unresponsive after few hours.] From: Dorian Gray To: Konrad Rzeszutek Wilk Cc: Alexander Duyck , Alan Stern , Suman Tripathi , iommu@lists.linux-foundation.org, USB list , Kernel development list Content-Type: text/plain; charset=ISO-8859-1 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 605 Lines: 15 On 16 April 2015 at 20:42, Konrad Rzeszutek Wilk wrote: > And easier way is to compile the kernel with CONFIG_DMA_API_DEBUG > and then load the attached module. > > That should tell you who and what else is holding on the buffers. Thanks, this will be my next step then, right after I'm done with testing the increased SWIOTLB. Jake -- 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/