From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757487AbaIRCz6 (ORCPT ); Wed, 17 Sep 2014 22:55:58 -0400 Received: from mail-wg0-f46.google.com ([74.125.82.46]:61993 "EHLO mail-wg0-f46.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755705AbaIRCz5 (ORCPT ); Wed, 17 Sep 2014 22:55:57 -0400 Message-ID: <541A49B9.2070009@gmail.com> Date: Thu, 18 Sep 2014 04:55:53 +0200 From: poma User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Thunderbird/31.1.0 MIME-Version: 1.0 To: Linux Kernel list CC: Mailing-List fedora-kernel Subject: Re: debug_dma_assert_idle - ohci - cpu touching an active dma mapped cacheline References: <534F01D1.9000206@gmail.com> <534F858B.4060208@ladisch.de> <53500CDB.8050802@gmail.com> <53570F1F.1000709@gmail.com> <53575099.1030501@gmail.com> <5361D69E.1060802@gmail.com> <53684172.6090402@gmail.com> <536A0777.1050407@gmail.com> <536F4ACA.3040300@gmail.com> <54011F5D.5040809@gmail.com> In-Reply-To: <54011F5D.5040809@gmail.com> Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org ------------[ cut here ]------------ WARNING: CPU: 2 PID: 1065 at lib/dma-debug.c:593 debug_dma_assert_idle+0x159/0x1d0() ohci-pci 0000:00:04.0: DMA-API: cpu touching an active dma mapped cacheline [cln=0x03004180] CPU: 2 PID: 1065 Comm: tumblerd Not tainted 3.17.0-0.rc5.git1.1.fc22.i686 #1 Call Trace: [] dump_stack+0x48/0x60 [] warn_slowpath_common+0x82/0xa0 [] ? debug_dma_assert_idle+0x159/0x1d0 [] ? debug_dma_assert_idle+0x159/0x1d0 [] warn_slowpath_fmt+0x3e/0x60 [] debug_dma_assert_idle+0x159/0x1d0 [] ? anon_vma_prepare+0x29/0x140 [] do_wp_page+0xe4/0x8c0 [] handle_mm_fault+0x662/0xba0 [] __do_page_fault+0x208/0x5d0 [] ? vm_mmap_pgoff+0x9b/0xc0 [] ? SyS_mmap_pgoff+0xe8/0x220 [] ? trace_hardirqs_on_caller+0x13c/0x1e0 [] ? __do_page_fault+0x5d0/0x5d0 [] do_page_fault+0x1a/0x20 [] error_code+0x6c/0x74 ---[ end trace ce8b30fb8a3415c9 ]--- Mapped at: [] debug_dma_alloc_coherent+0x22/0x70 [] ohci_init+0x22c/0x450 [] ohci_setup+0x59/0x60 [] ohci_pci_reset+0x4f/0x60 [] usb_add_hcd+0x29a/0x8c0 $ lsusb -s 004: Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub poma