** Changed in: linux (Ubuntu Xenial) Importance: Undecided => Medium ** Tags added: performing-bisect
-- 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/1558025 Title: skb_warn_bad_offload Crash Status in linux package in Ubuntu: In Progress Status in linux source package in Xenial: In Progress Bug description: We're setting up a new Dovecot server on Xenial. When we start the migration of emails, either the IMAP traffic or the NFS traffic immediately reproduces the crash below. I bisected using the mainline kernels. Everything up to and including v4.5-rc7-wily fails, but v4.5-wily works. [35439.677840] WARNING: CPU: 1 PID: 1209 at /build/linux-chsvUo/linux-4.4.0/net/core/dev.c:2422 skb_warn_bad_offload+0xd1/0x120() [35439.677843] virtio_net: caps=(0x00000804001f4a29, 0x0000000000000000) len=1622 data_len=1452 gso_size=1480 gso_type=2 ip_summed=0 [35439.677844] Modules linked in: nfsv3 nfs_acl nfs lockd grace fscache ppdev kvm_intel kvm irqbypass input_leds joydev serio_raw pvpanic parport_pc 8250_fintek par v6 xt_hl ip6t_rt nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT nf_reject_ipv4 xt_comment xt_multiport xt_recent xt_limit ib_iser xt_tcpudp rdma_cm iw_cm xt_addrtype i ipv4 nf_defrag_ipv4 iscsi_tcp xt_conntrack libiscsi_tcp libiscsi scsi_transport_iscsi ip6table_filter ip6_tables nf_conntrack_netbios_ns nf_conntrack_broadcast nf_n able_filter ip_tables x_tables sunrpc autofs4 cirrus ttm drm_kms_helper syscopyarea sysfillrect psmouse sysimgblt fb_sys_fops floppy drm pata_acpi [35439.677893] CPU: 1 PID: 1209 Comm: kworker/1:1H Tainted: G W 4.4.0-12-generic #28-Ubuntu [35439.677895] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Bochs 01/01/2011 [35439.677920] Workqueue: rpciod rpc_async_schedule [sunrpc] [35439.677922] 0000000000000286 00000000989a4fbd ffff880038c13798 ffffffff813e1ec3 [35439.677924] ffff880038c137e0 ffffffff81d5f900 ffff880038c137d0 ffffffff8107fe12 [35439.677926] ffff8800382f2600 ffff880035cdb000 0000000000000002 ffff880038264aac [35439.677928] Call Trace: [35439.677934] [<ffffffff813e1ec3>] dump_stack+0x63/0x90 [35439.677938] [<ffffffff8107fe12>] warn_slowpath_common+0x82/0xc0 [35439.677940] [<ffffffff8107feac>] warn_slowpath_fmt+0x5c/0x80 [35439.677943] [<ffffffff813e7f32>] ? ___ratelimit+0xa2/0xe0 [35439.677946] [<ffffffff81711011>] skb_warn_bad_offload+0xd1/0x120 [35439.677948] [<ffffffff8171469e>] __skb_gso_segment+0x7e/0xd0 [35439.677950] [<ffffffff81714a4d>] validate_xmit_skb.isra.97.part.98+0x10d/0x2b0 [35439.677951] [<ffffffff81714ffb>] validate_xmit_skb_list+0x3b/0x60 [35439.677956] [<ffffffff817397eb>] sch_direct_xmit+0x16b/0x210 [35439.677957] [<ffffffff8171533d>] __dev_queue_xmit+0x23d/0x590 [35439.677959] [<ffffffff817156a0>] dev_queue_xmit+0x10/0x20 [35439.677962] [<ffffffff8171e098>] neigh_resolve_output+0x118/0x1c0 [35439.677966] [<ffffffff817553b6>] ip_finish_output2+0x146/0x340 [35439.677968] [<ffffffff81756316>] ip_finish_output+0x136/0x1f0 [35439.677971] [<ffffffff81749b93>] ? nf_hook_slow+0x73/0xd0 [35439.677973] [<ffffffff81756d0e>] ip_output+0x6e/0xe0 [35439.677975] [<ffffffff817561e0>] ? __ip_flush_pending_frames.isra.39+0x90/0x90 [35439.677977] [<ffffffff817564d5>] ip_local_out+0x35/0x40 [35439.677979] [<ffffffff817576b9>] ip_send_skb+0x19/0x40 [35439.677981] [<ffffffff8177ed26>] udp_send_skb+0x176/0x270 [35439.677983] [<ffffffff8177ee5e>] udp_push_pending_frames+0x3e/0x60 [35439.677985] [<ffffffff81780581>] udp_sendpage+0x121/0x1a0 [35439.677990] [<ffffffff816f6458>] ? sock_sendmsg+0x38/0x50 [35439.677992] [<ffffffff816f658b>] ? kernel_sendmsg+0x2b/0x30 [35439.678001] [<ffffffffc0131625>] ? xs_send_kvec+0xa5/0xb0 [sunrpc] [35439.678004] [<ffffffff8178d133>] inet_sendpage+0x73/0xd0 [35439.678013] [<ffffffffc01317b9>] xs_sendpages+0x189/0x1d0 [sunrpc] [35439.678022] [<ffffffffc0131acb>] xs_udp_send_request+0x7b/0x1b0 [sunrpc] [35439.678031] [<ffffffffc012f616>] xprt_transmit+0x66/0x340 [sunrpc] [35439.678039] [<ffffffffc012bd89>] call_transmit+0x1b9/0x2a0 [sunrpc] [35439.678047] [<ffffffffc012bbd0>] ? call_decode+0x800/0x800 [sunrpc] [35439.678055] [<ffffffffc012bbd0>] ? call_decode+0x800/0x800 [sunrpc] [35439.678065] [<ffffffffc0136461>] __rpc_execute+0x91/0x470 [sunrpc] [35439.678074] [<ffffffffc0136855>] rpc_async_schedule+0x15/0x20 [sunrpc] [35439.678078] [<ffffffff81098eb2>] process_one_work+0x162/0x480 [35439.678080] [<ffffffff8109921b>] worker_thread+0x4b/0x4c0 [35439.678082] [<ffffffff810991d0>] ? process_one_work+0x480/0x480 [35439.678084] [<ffffffff810991d0>] ? process_one_work+0x480/0x480 [35439.678086] [<ffffffff8109f3e8>] kthread+0xd8/0xf0 [35439.678088] [<ffffffff8109f310>] ? kthread_create_on_node+0x1e0/0x1e0 [35439.678091] [<ffffffff8181cbcf>] ret_from_fork+0x3f/0x70 [35439.678093] [<ffffffff8109f310>] ? kthread_create_on_node+0x1e0/0x1e0 [35439.678094] ---[ end trace f958a4523480bfd6 ]--- ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: linux-image-4.4.0-12-generic 4.4.0-12.28 ProcVersionSignature: Ubuntu 4.4.0-12.28-generic 4.4.4 Uname: Linux 4.4.0-12-generic x86_64 AlsaDevices: total 0 crw-rw---- 1 root audio 116, 1 Mar 16 06:04 seq crw-rw---- 1 root audio 116, 33 Mar 16 06:04 timer AplayDevices: Error: [Errno 2] No such file or directory: 'aplay' ApportVersion: 2.20-0ubuntu3 Architecture: amd64 ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord' AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1: Date: Wed Mar 16 06:04:42 2016 HibernationDevice: RESUME=UUID=5bd13db0-5643-4ab4-9755-6f699d2bb5e5 IwConfig: Error: [Errno 2] No such file or directory: 'iwconfig' Lsusb: Bus 001 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub MachineType: QEMU Standard PC (i440FX + PIIX, 1996) PciMultimedia: ProcEnviron: TERM=xterm PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=en_US.UTF-8 SHELL=/bin/bash ProcFB: 0 cirrusdrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-12-generic root=UUID=b7f56990-c269-4bc6-872c-7d7982f384bf ro console=ttyS0,115200n8 console=tty1 transparent_hugepage=always elevator=noop RelatedPackageVersions: linux-restricted-modules-4.4.0-12-generic N/A linux-backports-modules-4.4.0-12-generic N/A linux-firmware 1.156 RfKill: Error: [Errno 2] No such file or directory: 'rfkill' SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 01/01/2011 dmi.bios.vendor: Bochs dmi.bios.version: Bochs dmi.chassis.type: 1 dmi.chassis.vendor: Bochs dmi.modalias: dmi:bvnBochs:bvrBochs:bd01/01/2011:svnQEMU:pnStandardPC(i440FX+PIIX,1996):pvrpc-i440fx-trusty:cvnBochs:ct1:cvr: dmi.product.name: Standard PC (i440FX + PIIX, 1996) dmi.product.version: pc-i440fx-trusty dmi.sys.vendor: QEMU To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1558025/+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
