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** Changed in: linux (Ubuntu) Importance: Undecided => Medium ** Tags added: kernel-da-key -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1251035 Title: kernel stack trace when running openvswitch DEP-8 tests Status in “linux” package in Ubuntu: Confirmed Bug description: The DEP-8 test exercises the openvswitch userspace and kernel module by setting up to bridges, connecting 7 'hosts' to each bridge, patching the bridges together and then running performance and ping tests between hosts on different bridges. The stack trace occurs on teardown of the bridges/switches. [ 426.965530] ------------[ cut here ]------------ [ 426.965538] WARNING: CPU: 2 PID: 16575 at /build/buildd/linux-3.12.0/net/core/dev.c:5319 rollback_registered_many+0x219/0x250() [ 426.965540] Modules linked in: openvswitch vxlan ip_tunnel(F) gre(F) libcrc32c(F) veth(F) hid_generic usbhid hid xt_conntrack(F) ipt_REJECT(F) xt_CHECKSUM(F) iptable_mangle(F) xt_tcpudp(F) ip6table_filter(F) ip6_tables(F) iptable_filter(F) ebtable_nat(F) ebtables(F) dm_crypt(F) ipt_MASQUERADE(F) iptable_nat(F) nf_conntrack_ipv4(F) nf_defrag_ipv4(F) nf_nat_ipv4(F) nf_nat(F) nf_conntrack(F) ip_tables(F) x_tables(F) bridge(F) stp(F) llc(F) joydev(F) x86_pkg_temp_thermal intel_powerclamp coretemp kvm_intel(F) kvm(F) crct10dif_pclmul(F) crc32_pclmul(F) ghash_clmulni_intel(F) aesni_intel(F) aes_x86_64(F) lrw(F) gf128mul(F) glue_helper(F) ablk_helper(F) cryptd(F) arc4(F) parport_pc(F) iwldvm ppdev(F) snd_hda_codec_hdmi mac80211 snd_hda_codec_realtek uvcvideo videobuf2_vmalloc videobuf2_memops videobuf2_core videodev btusb microcode(F) snd_hda_intel snd_hda_codec iwlwifi snd_hwdep(F) psmouse(F) thinkpad_acpi snd_pcm(F) serio_raw(F) nvram(F) cfg80211 snd_seq_midi(F) lpc_ich snd_seq_midi_event(F) snd_rawmidi(F) bnep snd_seq(F) rfcomm snd_page_alloc(F) snd_seq_device(F) snd_timer(F) bluetooth snd(F) soundcore(F) tpm_tis mac_hid mei_me mei lp(F) parport(F) nls_iso8859_1(F) i915 i2c_algo_bit drm_kms_helper drm sdhci_pci ahci(F) libahci(F) sdhci e1000e(F) ptp(F) pps_core(F) wmi video(F) [last unloaded: ip_tunnel] [ 426.965609] CPU: 2 PID: 16575 Comm: ip Tainted: GF W 3.12.0-2-generic #7-Ubuntu [ 426.965610] Hardware name: LENOVO 2324CTO/2324CTO, BIOS G2ET91WW (2.51 ) 01/14/2013 [ 426.965612] 0000000000000009 ffff8803ba8bd8e8 ffffffff8170feef 0000000000000000 [ 426.965616] ffff8803ba8bd920 ffffffff8106430d ffff8803d0dd9000 ffff8803ba8bd918 [ 426.965618] ffff8803ba8bd988 0000000000000000 ffffffff81cd5f80 ffff8803ba8bd930 [ 426.965621] Call Trace: [ 426.965627] [<ffffffff8170feef>] dump_stack+0x45/0x56 [ 426.965631] [<ffffffff8106430d>] warn_slowpath_common+0x7d/0xa0 [ 426.965634] [<ffffffff810643ea>] warn_slowpath_null+0x1a/0x20 [ 426.965637] [<ffffffff81612d09>] rollback_registered_many+0x219/0x250 [ 426.965640] [<ffffffff81612d97>] unregister_netdevice_many+0x17/0x70 [ 426.965644] [<ffffffff81626f0f>] rtnl_dellink+0xbf/0x130 [ 426.965647] [<ffffffff81624259>] rtnetlink_rcv_msg+0x99/0x260 [ 426.965651] [<ffffffff8119b068>] ? __kmalloc_node_track_caller+0x58/0x1e0 [ 426.965654] [<ffffffff81197f11>] ? kmem_cache_alloc+0x31/0x140 [ 426.965658] [<ffffffff81606bae>] ? __alloc_skb+0x7e/0x2b0 [ 426.965660] [<ffffffff816241c0>] ? rtnetlink_rcv+0x30/0x30 [ 426.965664] [<ffffffff81642749>] netlink_rcv_skb+0xa9/0xc0 [ 426.965667] [<ffffffff816241b8>] rtnetlink_rcv+0x28/0x30 [ 426.965670] [<ffffffff81641d9d>] netlink_unicast+0xdd/0x190 [ 426.965673] [<ffffffff8137e06d>] ? memcpy_fromiovec+0x4d/0x90 [ 426.965676] [<ffffffff8164214f>] netlink_sendmsg+0x2ff/0x740 [ 426.965679] [<ffffffff815fe63b>] sock_sendmsg+0x8b/0xc0 [ 426.965683] [<ffffffff8117b278>] ? page_add_new_anon_rmap+0xd8/0x170 [ 426.965686] [<ffffffff815fe32e>] ? move_addr_to_kernel.part.14+0x1e/0x60 [ 426.965689] [<ffffffff815feef1>] ? move_addr_to_kernel+0x21/0x30 [ 426.965692] [<ffffffff815feeb8>] ___sys_sendmsg+0x3b8/0x3d0 [ 426.965695] [<ffffffff8117112c>] ? handle_mm_fault+0x36c/0x750 [ 426.965699] [<ffffffff8171c0bc>] ? __do_page_fault+0x21c/0x560 [ 426.965704] [<ffffffff8110aeac>] ? acct_account_cputime+0x1c/0x20 [ 426.965707] [<ffffffff8109b86b>] ? account_user_time+0x8b/0xa0 [ 426.965710] [<ffffffff815ff5c2>] __sys_sendmsg+0x42/0x80 [ 426.965713] [<ffffffff815ff612>] SyS_sendmsg+0x12/0x20 [ 426.965716] [<ffffffff81720d3f>] tracesys+0xe1/0xe6 [ 426.965718] ---[ end trace 82879f5d4f934596 ]--- ProblemType: Bug DistroRelease: Ubuntu 14.04 Package: linux-image-generic 3.12.0.2.4 ProcVersionSignature: Ubuntu 3.12.0-2.7-generic 3.12.0 Uname: Linux 3.12.0-2-generic x86_64 ApportVersion: 2.12.6-0ubuntu1 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: jamespage 2869 F.... pulseaudio Date: Wed Nov 13 21:26:50 2013 EcryptfsInUse: Yes HibernationDevice: RESUME=UUID=9cabca8b-d2e3-4f65-a113-3c165c5ecbc6 InstallationDate: Installed on 2013-04-23 (204 days ago) InstallationMedia: Ubuntu 13.04 "Raring Ringtail" - Release amd64 (20130423) MachineType: LENOVO 2324CTO MarkForUpload: True ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.12.0-2-generic.efi.signed root=UUID=88b94abf-33eb-4e05-888d-9dacbe025054 ro quiet splash vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-3.12.0-2-generic N/A linux-backports-modules-3.12.0-2-generic N/A linux-firmware 1.117 SourcePackage: linux UpgradeStatus: Upgraded to trusty on 2013-11-11 (2 days ago) dmi.bios.date: 01/14/2013 dmi.bios.vendor: LENOVO dmi.bios.version: G2ET91WW (2.51 ) dmi.board.asset.tag: Not Available dmi.board.name: 2324CTO dmi.board.vendor: LENOVO dmi.board.version: Win8 Pro DPK TPG dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Not Available dmi.modalias: dmi:bvnLENOVO:bvrG2ET91WW(2.51):bd01/14/2013:svnLENOVO:pn2324CTO:pvrThinkPadX230:rvnLENOVO:rn2324CTO:rvrWin8ProDPKTPG:cvnLENOVO:ct10:cvrNotAvailable: dmi.product.name: 2324CTO dmi.product.version: ThinkPad X230 dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1251035/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp