From mboxrd@z Thu Jan 1 00:00:00 1970 From: Dave Jones Subject: r8169: DMA-API: exceeded 7 overlapping mappings of pfn 943ad Date: Thu, 30 Jan 2014 11:01:13 -0500 Message-ID: <20140130160113.GA18779@redhat.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: netdev@vger.kernel.org To: romieu@fr.zoreil.com Return-path: Received: from mx1.redhat.com ([209.132.183.28]:58083 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753209AbaA3QBY (ORCPT ); Thu, 30 Jan 2014 11:01:24 -0500 Content-Disposition: inline Sender: netdev-owner@vger.kernel.org List-ID: WARNING: CPU: 0 PID: 0 at lib/dma-debug.c:491 add_dma_entry+0x127/0x130() DMA-API: exceeded 7 overlapping mappings of pfn 943ad Modules linked in: ipt_MASQUERADE iptable_nat nf_nat_ipv4 nf_nat xt_LOG xt_limit ip6t_REJECT nf_conntrack_ipv4 nf_conntrack_ipv6 nf_defrag_ipv6 nf_defrag_ipv4 xt_conntrack nf_conntrack ip6table_filter ip6_tables crc32c_intel ghash_clmulni_intel microcode pcspkr r8169 mii nfsd auth_rpcgss nfs_acl lockd sunrpc i915 i2c_algo_bit drm_kms_helper drm video backlight CPU: 0 PID: 0 Comm: swapper/0 Not tainted 3.13.0+ #10 Hardware name: Shuttle Inc. SH87R/FH87, BIOS 1.02 06/26/2013 0000000000000009 62a5d1f597ade7cd ffff88013ac03910 ffffffff8157a0ca ffff88013ac03958 ffff88013ac03948 ffffffff8105c343 00000000000943ad ffff8800b198ce38 0000000000000286 ffffffff828acb40 0000000000000286 Call Trace: [] dump_stack+0x4d/0x66 [] warn_slowpath_common+0x73/0x90 [] warn_slowpath_fmt+0x57/0x80 [] ? active_pfn_read_overlap+0x2d/0x50 [] add_dma_entry+0x127/0x130 [] debug_dma_map_page+0x11a/0x140 [] rtl8169_start_xmit+0x1fe/0xac0 [r8169] [] ? lock_release_holdtime.part.30+0xf/0x190 [] ? dev_queue_xmit_nit+0x170/0x3d0 [] dev_hard_start_xmit+0x2cb/0x4c0 [] sch_direct_xmit+0xee/0x280 [] __dev_queue_xmit+0x200/0x770 [] ? dev_hard_start_xmit+0x4c0/0x4c0 [] dev_queue_xmit+0xb/0x10 [] neigh_resolve_output+0x17a/0x2e0 [] ? ip_finish_output+0x3f0/0x8e0 [] ip_finish_output+0x3f0/0x8e0 [] ? ip_finish_output+0x266/0x8e0 [] ip_output+0x57/0xf0 [] ip_forward_finish+0x71/0x1c0 [] ip_forward+0x213/0x590 [] ip_rcv_finish+0x140/0x570 [] ip_rcv+0x294/0x3d0 [] __netif_receive_skb_core+0x762/0x960 [] ? __netif_receive_skb_core+0x13d/0x960 [] ? trace_hardirqs_on+0xd/0x10 [] __netif_receive_skb+0x13/0x60 [] netif_receive_skb_internal+0x2d/0x210 [] napi_gro_receive+0x58/0x80 [] rtl8169_poll+0x166/0x700 [r8169] [] net_rx_action+0x129/0x1e0 [] __do_softirq+0x11c/0x2a0 [] irq_exit+0x11d/0x140 [] do_IRQ+0x53/0xf0 [] common_interrupt+0x6f/0x6f [] ? cpuidle_enter_state+0x4f/0xc0 [] ? cpuidle_enter_state+0x4b/0xc0 [] cpuidle_idle_call+0x96/0x140 [] arch_cpu_idle+0x9/0x30 [] cpu_startup_entry+0xea/0x220 [] rest_init+0x133/0x140 [] ? csum_partial_copy_generic+0x170/0x170 [] start_kernel+0x41f/0x440 [] ? repair_env_string+0x5c/0x5c [] x86_64_start_reservations+0x2a/0x2c [] x86_64_start_kernel+0xc7/0xca This box has two r8169's. Two different revs.. 02:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 0c) 03:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 03)