From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933644AbaE3TFO (ORCPT ); Fri, 30 May 2014 15:05:14 -0400 Received: from mx1.redhat.com ([209.132.183.28]:27354 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932303AbaE3TFM (ORCPT ); Fri, 30 May 2014 15:05:12 -0400 Date: Fri, 30 May 2014 15:05:02 -0400 From: Dave Jones To: Linux Kernel Cc: daniel.vetter@ffwll.ch Subject: 3.15-rc7 i915 related dma-debug warning. Message-ID: <20140530190502.GA15360@redhat.com> Mail-Followup-To: Dave Jones , Linux Kernel , daniel.vetter@ffwll.ch MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.5.23 (2014-03-12) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org WARNING: CPU: 1 PID: 24000 at lib/dma-debug.c:593 debug_dma_assert_idle+0x1a4/0x220() i915 0000:00:02.0: DMA-API: cpu touching an active dma mapped cacheline [cln=0x0000000004401d40] Modules linked in: ccm ip6t_rpfilter ip6t_REJECT xt_conntrack ebtable_nat ebtable_broute bridge stp llc ebtable_filter ebtables ip6table_nat nf_conntrack_ipv6 nf_defrag_ipv6 nf_nat_ipv6 ip6table_mangle ip6table_security ip6table_raw ip6table_filter ip6_tables iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 nf_nat nf_conntrack iptable_mangle iptable_security iptable_raw iTCO_wdt iTCO_vendor_support arc4 x86_pkg_temp_thermal coretemp iwldvm kvm_intel mac80211 kvm snd_hda_codec_hdmi uvcvideo videobuf2_vmalloc snd_hda_codec_realtek videobuf2_memops snd_hda_codec_generic btusb videobuf2_core bluetooth videodev iwlwifi snd_hda_intel sdhci_pci microcode snd_hda_controller snd_hda_codec sdhci serio_raw media snd_hwdep snd_seq snd_seq_device mmc_core snd_pcm lpc_ich mfd_core cfg80211 i2c_i801 mei_me snd_timer mei thinkpad_acpi snd soundcore rfkill shpchp nfsd auth_rpcgss nfs_acl lockd sunrpc xfs libcrc32c dm_crypt nouveau crct10dif_pclmul crc32_pclmul crc32c_intel mxm_wmi ghash_clmulni_intel i915 ttm i2c_algo_bit drm_kms_helper drm e1000e i2c_core ptp wmi pps_core video CPU: 1 PID: 24000 Comm: bash Not tainted 3.15.0-0.rc7.git2.1.fc21.x86_64 #1 Hardware name: LENOVO 2356JK8/2356JK8, BIOS G7ET94WW (2.54 ) 04/30/2013 0000000000000000 000000002464519d ffff880113655c58 ffffffff817ea4ea ffff880113655ca0 ffff880113655c90 ffffffff81095cbd ffff8801372ed150 ffff8801363456c0 0000000001ffa1f0 ffffea000450c880 ffff88011b3b9078 Call Trace: [] dump_stack+0x4d/0x66 [] warn_slowpath_common+0x7d/0xa0 [] warn_slowpath_fmt+0x5c/0x80 [] debug_dma_assert_idle+0x1a4/0x220 [] do_wp_page+0xe5/0x960 [] handle_mm_fault+0x924/0x1110 [] ? __do_page_fault+0x16c/0x600 [] __do_page_fault+0x1d6/0x600 [] ? __set_current_blocked+0x2b/0x50 [] ? trace_hardirqs_on+0xd/0x10 [] ? _raw_spin_unlock_irq+0x2c/0x40 [] do_page_fault+0x22/0x30 [] page_fault+0x28/0x30 ---[ end trace 301c1ffd35eb28d9 ]--- Mapped at: [] debug_dma_map_sg+0x52/0x190 [] i915_gem_gtt_prepare_object+0xdb/0x110 [i915] [] i915_gem_object_pin+0x42d/0x780 [i915] [] i915_gem_fault+0x2ff/0x410 [i915] [] __do_fault+0x4c/0x120