Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1030968AbcCQShZ (ORCPT ); Thu, 17 Mar 2016 14:37:25 -0400 Received: from mail-ph.de-nserver.de ([85.158.179.214]:34126 "EHLO mail-ph.de-nserver.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S936339AbcCQShW (ORCPT ); Thu, 17 Mar 2016 14:37:22 -0400 X-Fcrdns: No To: LKML , stable , "linux-mm@kvack.org" , linux-mm@vger.kernel.org From: Stefan Priebe Subject: divide error: 0000 [#1] SMP in task_numa_migrate - handle_mm_fault vanilla 4.4.6 Message-ID: <56EAF98B.50605@profihost.ag> Date: Thu, 17 Mar 2016 19:38:03 +0100 User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:38.0) Gecko/20100101 Thunderbird/38.6.0 MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 7bit X-User-Auth: Auth by s.priebe@profihost.ag through 185.39.223.5 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 3946 Lines: 80 Hi, while running qemu 2.5 on a host running 4.4.6 the host system has crashed (load > 200) 3 times in the last 3 days. Always with this stack trace: (copy left here: http://pastebin.com/raw/bCWTLKyt) [69068.874268] divide error: 0000 [#1] SMP [69068.875242] Modules linked in: ebtable_filter ebtables ip6t_REJECT nf_reject_ipv6 nf_conntrack_ipv6 nf_defrag_ipv6 ip6table_filter ip6_tables ipt_REJECT nf_reject_ipv4 xt_physdev xt_comment nf_conntrack_ipv4 nf_defrag_ipv4 xt_tcpudp xt_mark xt_set xt_addrtype xt_conntrack nf_conntrack ip_set_hash_net ip_set vhost_net tun vhost macvtap macvlan kvm_intel nfnetlink_log kvm nfnetlink irqbypass netconsole dlm xt_multiport iptable_filter ip_tables x_tables iscsi_tcp libiscsi_tcp libiscsi scsi_transport_iscsi nfsd auth_rpcgss oid_registry bonding coretemp 8021q garp fuse i2c_i801 i7core_edac edac_core i5500_temp button btrfs xor raid6_pq dm_mod raid1 md_mod usb_storage ohci_hcd bcache sg usbhid sd_mod ata_generic uhci_hcd ehci_pci ehci_hcd usbcore ata_piix usb_common igb i2c_algo_bit mpt3sas raid_class ixgbe scsi_transport_sas i2c_core mdio ptp pps_core [69068.895604] CPU: 14 PID: 6673 Comm: ceph-osd Not tainted 4.4.6+7-ph #1 [69068.897052] Hardware name: Supermicro X8DT3/X8DT3, BIOS 2.1 03/17/2012 [69068.898578] task: ffff880fc7f28000 ti: ffff880fda2c4000 task.ti: ffff880fda2c4000 [69068.900377] RIP: 0010:[] [] task_h_load+0xcc/0x100 [69068.961763] RSP: 0000:ffff880fda2c7b50 EFLAGS: 00010257 [69069.023910] RAX: 0000000000000000 RBX: ffff880fda2c7c10 RCX: 0000000000000000 [69069.085953] RDX: 0000000000000000 RSI: 0000000000000001 RDI: ffff880fc7f28000 [69069.151731] RBP: ffff880fda2c7bc8 R08: 00000001041955df R09: ffff880fffd153f8 [69069.213757] R10: 0000000000000009 R11: 0000000000000193 R12: ffff881f6832c780 [69069.274271] R13: ffff88203fc35380 R14: 0000000000000007 R15: 00000000000000b6 [69069.334727] FS: 00007f578a3fb700(0000) GS:ffff880fffd00000(0000) knlGS:0000000000000000 [69069.396435] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [69069.458522] CR2: 00007f5784f18468 CR3: 0000001fe9738000 CR4: 00000000000026e0 [69069.520799] Stack: [69069.581430] ffffffff860b6855 ffff880fda2c7b78 0000000000000000 0000000000000005 [69069.642629] ffff880fffd00000 0000000000000015 fffffffffffffe7d 0000000000000015 [69069.702815] 0000000000015380 ffff880fda2c7bc8 ffff880fc7f28000 00000000000001e9 [69069.761881] Call Trace: [69069.819883] [] ? task_numa_find_cpu+0x225/0x670 [69069.878368] [] task_numa_migrate+0x550/0x950 [69069.936059] [] ? find_next_bit+0x18/0x20 [69069.993262] [] numa_migrate_preferred+0x7d/0x90 [69070.050528] [] task_numa_fault+0x7c5/0xaa0 [69070.106544] [] ? mpol_misplaced+0x16b/0x1b0 [69070.163705] [] __handle_mm_fault+0x9ae/0x11f0 [69070.220013] [] ? inet_recvmsg+0x72/0x90 [69070.276558] [] ? SYSC_recvfrom+0x12b/0x170 [69070.332283] [] handle_mm_fault+0xdf/0x180 [69070.388515] [] __do_page_fault+0x164/0x380 [69070.443897] [] ? account_user_time+0x73/0x80 [69070.498534] [] ? vtime_account_user+0x4e/0x70 [69070.552598] [] do_page_fault+0x37/0x90 [69070.605960] [] ? syscall_return_slowpath+0x83/0xf0 [69070.660705] [] page_fault+0x28/0x30 [69070.715707] Code: 86 b8 00 00 00 48 89 86 b0 00 00 00 48 85 c9 75 ca 49 8b 81 b0 00 00 00 49 8b 49 78 31 d2 48 0f af 87 d8 01 00 00 5d 48 83 c1 01 <48> f7 f1 c3 4c 89 ce 48 8b 8e c0 00 00 00 48 8b 46 78 4c 89 86 [69070.835144] RIP [] task_h_load+0xcc/0x100 [69070.894095] RSP [69070.953213] ---[ end trace 8d6f449a03dacfd4 ]--- Would be nice if we can fix this in 4.4? Greets, Stefan