Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751746AbbHLUlj (ORCPT ); Wed, 12 Aug 2015 16:41:39 -0400 Received: from mail-pa0-f46.google.com ([209.85.220.46]:33168 "EHLO mail-pa0-f46.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750826AbbHLUlh (ORCPT ); Wed, 12 Aug 2015 16:41:37 -0400 Message-ID: <1439412094.29802.21.camel@edumazet-glaptop2.roam.corp.google.com> Subject: Re: Linux 4.2-rc6 regression: RIP: e030:[] [] detach_if_pending+0x18/0x80 From: Eric Dumazet To: linux@eikelenboom.it Cc: linux-kernel@vger.kernel.org, netdev@vger.kernel.org Date: Wed, 12 Aug 2015 13:41:34 -0700 In-Reply-To: <7c39e6332aae572372108d5fd68c503b@eikelenboom.it> References: <7c39e6332aae572372108d5fd68c503b@eikelenboom.it> Content-Type: text/plain; charset="UTF-8" X-Mailer: Evolution 3.10.4-0ubuntu2 Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 4755 Lines: 105 On Wed, 2015-08-12 at 21:19 +0200, linux@eikelenboom.it wrote: > Hi, > > On my box running Xen with a 4.2-rc6 kernel i still get this splat in > dom0, > which crashes the box. > (i reported a similar splat before (at rc4) here, > http://www.spinics.net/lists/netdev/msg337570.html) > > Never seen this one on 4.1, so it seems a regression. > > -- > Sander > > > [81133.193439] general protection fault: 0000 [#1] SMP > [81133.204284] Modules linked in: > [81133.214934] CPU: 0 PID: 3 Comm: ksoftirqd/0 Not tainted > 4.2.0-rc6-20150811-linus-doflr+ #1 > [81133.225632] Hardware name: MSI MS-7640/890FXA-GD70 (MS-7640) , BIOS > V1.8B1 09/13/2010 > [81133.236237] task: ffff880059b91580 ti: ffff880059bb4000 task.ti: > ffff880059bb4000 > [81133.246808] RIP: e030:[] [] > detach_if_pending+0x18/0x80 > [81133.257354] RSP: e02b:ffff880059bb7848 EFLAGS: 00010086 > [81133.267749] RAX: ffff88004eddc7f0 RBX: ffff88000e20ae08 RCX: > dead000000200200 > [81133.278201] RDX: 0000000000000000 RSI: ffff88005f60e600 RDI: > ffff88000e20ae08 > [81133.288723] RBP: ffff880059bb7848 R08: 0000000000000001 R09: > 0000000000000001 > [81133.298930] R10: 0000000000000003 R11: ffff88000e20ad68 R12: > 0000000000000000 > [81133.308875] R13: 0000000101735569 R14: 0000000000015f90 R15: > ffff88005f60e600 > [81133.318845] FS: 00007f28c6f7c800(0000) GS:ffff88005f600000(0000) > knlGS:0000000000000000 > [81133.328864] CS: e033 DS: 0000 ES: 0000 CR0: 000000008005003b > [81133.338693] CR2: ffff8000007f6800 CR3: 000000003d55c000 CR4: > 0000000000000660 > [81133.348462] Stack: > [81133.358005] ffff880059bb7898 ffffffff8110fe3f ffffffff810fc261 > 0000000000000200 > [81133.367682] 0000000000000003 ffff88000e20ad68 0000000000000000 > ffff88005854d400 > [81133.377064] 0000000000015f90 0000000000000000 ffff880059bb78c8 > ffffffff819b5243 > [81133.386374] Call Trace: > [81133.395596] [] mod_timer_pending+0x3f/0xe0 > [81133.404999] [] ? > __raw_callee_save___pv_queued_spin_unlock+0x11/0x20 > [81133.414255] [] __nf_ct_refresh_acct+0xa3/0xb0 > [81133.423137] [] tcp_packet+0xb3b/0x1290 > [81133.431894] [] ? __local_bh_enable_ip+0x2a/0x90 > [81133.440622] [] ? > __nf_conntrack_find_get+0x129/0x2a0 > [81133.449339] [] nf_conntrack_in+0x29c/0x7c0 > [81133.457940] [] ipv4_conntrack_in+0x21/0x30 > [81133.466296] [] nf_iterate+0x4c/0x80 > [81133.474401] [] nf_hook_slow+0x64/0xc0 > [81133.482615] [] ip_rcv+0x2ec/0x380 > [81133.490781] [] ? > ip_local_deliver_finish+0x130/0x130 > [81133.498790] [] > __netif_receive_skb_core+0x2a0/0x970 > [81133.506714] [] ? inet_gro_receive+0x1c8/0x200 > [81133.514609] [] __netif_receive_skb+0x15/0x70 > [81133.522333] [] > netif_receive_skb_internal+0x1e/0x80 > [81133.529840] [] napi_gro_receive+0x6b/0x90 > [81133.537173] [] rtl8169_poll+0x2e6/0x600 > [81133.544444] [] ? > __raw_callee_save___pv_queued_spin_unlock+0x11/0x20 > [81133.551566] [] net_rx_action+0x1f7/0x300 > [81133.558412] [] __do_softirq+0x103/0x210 > [81133.565353] [] run_ksoftirqd+0x37/0x60 > [81133.572359] [] smpboot_thread_fn+0x130/0x190 > [81133.579215] [] ? sort_range+0x20/0x20 > [81133.586042] [] kthread+0xee/0x110 > [81133.592792] [] ? > kthread_create_on_node+0x1b0/0x1b0 > [81133.599694] [] ret_from_fork+0x3f/0x70 > [81133.606662] [] ? > kthread_create_on_node+0x1b0/0x1b0 > [81133.613445] Code: 77 28 5d c3 66 66 66 66 66 66 2e 0f 1f 84 00 00 00 > 00 00 48 8b 47 08 55 48 89 e5 48 85 c0 74 6a 48 8b 0f 48 85 c9 48 89 08 > 74 04 <48> 89 41 08 84 d2 74 08 48 c7 47 08 00 00 00 00 f6 47 2a 10 48 > [81133.627196] RIP [] detach_if_pending+0x18/0x80 > [81133.634036] RSP > [81133.640817] ---[ end trace eaf596e1fcf6a591 ]--- > [81133.647521] Kernel panic - not syncing: Fatal exception in interrupt This looks like the bug fixed in David Miller net tree : http://git.kernel.org/cgit/linux/kernel/git/davem/net.git/commit/?id=2235f2ac75fd2501c251b0b699a9632e80239a6d -- 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/