Would it be possible for you to test the latest upstream kernel? Refer to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest v4.14 kernel[0].
If this bug is fixed in the mainline kernel, please add the following tag 'kernel-fixed-upstream'. If the mainline kernel does not fix this bug, please add the tag: 'kernel-bug-exists-upstream'. Once testing of the upstream kernel is complete, please mark this bug as "Confirmed". Thanks in advance. [0] http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.14 ** Changed in: linux (Ubuntu) Importance: Undecided => Medium ** Changed in: linux (Ubuntu) Status: Confirmed => Incomplete -- 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/1734099 Title: tcp_input.c:2826 tcp_fastretrans_alert+0x7d0/0x990 Status in linux package in Ubuntu: Incomplete Bug description: Server reboot after multiple errors in dmesg: [80484.782020] ------------[ cut here ]------------ [80484.782043] WARNING: CPU: 0 PID: 0 at /build/linux-KM2a5S/linux-4.13.0/net/ipv4/tcp_input.c:2826 tcp_fastretrans_alert+0x7d0/0x990 [80484.782045] Modules linked in: ufs qnx4 hfsplus hfs minix ntfs msdos jfs vhost_net vhost tap ipt_REJECT nf_reject_ipv4 ebtable_filter ebtables iscsi_target_mod target_core_mod fcoe libfcoe libfc scsi_transport_fc hangcheck_timer xt_CHECKSUM xt_multiport ip6table_filter ip6t_MASQUERADE nf_nat_masquerade_ipv6 ip6table_nat ip6table_mangle ip6_tables xt_limit xt_NFLOG nfnetlink_log xt_physdev br_netfilter xt_comment xt_conntrack iptable_filter ipt_MASQUERADE nf_nat_masquerade_ipv4 xt_REDIRECT nf_nat_redirect iptable_nat xt_tcpudp xt_mark 8021q garp mrp bridge xt_DSCP stp llc xt_owner iptable_mangle openvswitch nf_conntrack_ipv6 nf_nat_ipv6 nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 nf_defrag_ipv6 nf_nat nf_conntrack_netlink nf_conntrack nfnetlink binfmt_misc dm_thin_pool dm_persistent_data dm_bio_prison [80484.782074] dm_bufio xfs amd64_edac_mod edac_mce_amd kvm_amd kvm irqbypass crct10dif_pclmul crc32_pclmul ghash_clmulni_intel pcbc aesni_intel aes_x86_64 crypto_simd zfs(PO) glue_helper cryptd zunicode(PO) zavl(PO) zcommon(PO) znvpair(PO) eeepc_wmi asus_wmi sparse_keymap video wmi_bmof uvcvideo fam15h_power k10temp videobuf2_vmalloc videobuf2_memops videobuf2_v4l2 videobuf2_core videodev spl(O) media i2c_piix4 snd_usb_audio snd_usbmidi_lib snd_hda_codec_realtek snd_hda_codec_generic snd_hda_codec_hdmi snd_hda_intel snd_hda_codec snd_hda_core snd_hwdep snd_pcm joydev input_leds snd_seq_midi snd_seq_midi_event snd_rawmidi snd_seq snd_seq_device snd_timer snd soundcore shpchp mac_hid dm_multipath scsi_dh_rdac scsi_dh_emc scsi_dh_alua tcp_htcp cuse ib_iser rdma_cm iw_cm ib_cm ib_core iscsi_tcp libiscsi_tcp [80484.782113] libiscsi nfsd scsi_transport_iscsi auth_rpcgss sbs sbshc nfs_acl lockd max6650 grace it87 hwmon_vid asus_atk0110 aoe sunrpc ip_tables x_tables autofs4 btrfs raid10 raid1 raid0 multipath linear raid456 async_raid6_recov async_memcpy async_pq async_xor async_tx xor raid6_pq libcrc32c amdkfd amd_iommu_v2 radeon i2c_algo_bit hid_generic ttm drm_kms_helper e1000e firewire_ohci uas syscopyarea sysfillrect ptp firewire_core usbhid sysimgblt r8169 mxm_wmi usb_storage crc_itu_t fb_sys_fops mii hid pps_core drm ahci libahci wmi [80484.782142] CPU: 0 PID: 0 Comm: swapper/0 Tainted: P W O 4.13.0-17-generic #20-Ubuntu [80484.782143] Hardware name: To be filled by O.E.M. To be filled by O.E.M./SABERTOOTH 990FX, BIOS 1604 10/16/2012 [80484.782145] task: ffffffff86a10480 task.stack: ffffffff86a00000 [80484.782147] RIP: 0010:tcp_fastretrans_alert+0x7d0/0x990 [80484.782149] RSP: 0018:ffff97b23ec03940 EFLAGS: 00010202 [80484.782150] RAX: 0000000000000000 RBX: ffff97aa03b65800 RCX: ffff97b23ec039a4 [80484.782152] RDX: 0000000000000001 RSI: 0000000000000002 RDI: ffff97aa03b65800 [80484.782153] RBP: ffff97b23ec03980 R08: 0000000000000000 R09: 0000000000000000 [80484.782154] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000005120 [80484.782156] R13: ffff97b23ec039ac R14: 0000000000000001 R15: ffff97b23ec039a4 [80484.782157] FS: 0000000000000000(0000) GS:ffff97b23ec00000(0000) knlGS:0000000000000000 [80484.782159] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [80484.782160] CR2: 00007f121094e000 CR3: 00000003bb7ca000 CR4: 00000000000406f0 [80484.782162] Call Trace: [80484.782164] <IRQ> [80484.782169] ? sk_reset_timer+0x18/0x30 [80484.782171] tcp_ack+0x4ee/0x890 [80484.782173] tcp_rcv_established+0x323/0x770 [80484.782176] tcp_v4_do_rcv+0x90/0x1e0 [80484.782178] tcp_v4_rcv+0x92b/0x9d0 [80484.782181] ip_local_deliver_finish+0x5c/0x1f0 [80484.782182] ip_local_deliver+0x6f/0xe0 [80484.782184] ? ip_rcv_finish+0x410/0x410 [80484.782186] ip_rcv_finish+0x120/0x410 [80484.782188] ip_rcv+0x28c/0x3a0 [80484.782190] ? inet_del_offload+0x40/0x40 [80484.782192] __netif_receive_skb_core+0x39a/0xaa0 [80484.782195] ? find_busiest_group+0x47/0x4a0 [80484.782197] __netif_receive_skb+0x18/0x60 [80484.782199] ? __netif_receive_skb+0x18/0x60 [80484.782201] netif_receive_skb_internal+0x3f/0x3f0 [80484.782203] ? dev_gro_receive+0x2dc/0x480 [80484.782205] napi_gro_receive+0xc2/0xe0 [80484.782214] e1000_receive_skb+0x86/0xe0 [e1000e] [80484.782221] e1000_clean_rx_irq+0x1fb/0x3d0 [e1000e] [80484.782228] e1000e_poll+0x78/0x2d0 [e1000e] [80484.782230] net_rx_action+0x13b/0x380 [80484.782236] ? e1000_intr_msi+0xec/0x190 [e1000e] [80484.782239] __do_softirq+0xde/0x2a5 [80484.782242] irq_exit+0xb6/0xc0 [80484.782243] do_IRQ+0x80/0xd0 [80484.782246] common_interrupt+0x89/0x89 [80484.782249] RIP: 0010:cpuidle_enter_state+0x130/0x2d0 [80484.782251] RSP: 0018:ffffffff86a03dc8 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff7a [80484.782253] RAX: ffff97b23ec1c200 RBX: 0000493352d6e451 RCX: 000000000000001f [80484.782254] RDX: 0000493352d6e451 RSI: fffffff55a8640b3 RDI: 0000000000000000 [80484.782256] RBP: ffffffff86a03e08 R08: 0000000000003ccd R09: 0000000000000018 [80484.782257] R10: ffffffff86a03d98 R11: 0000000000000dbb R12: ffff97b20e8fd800 [80484.782260] R13: 0000000000000000 R14: 0000000000000002 R15: ffffffff86b85618 [80484.782262] </IRQ> [80484.782264] ? cpuidle_enter_state+0x120/0x2d0 [80484.782266] cpuidle_enter+0x17/0x20 [80484.782269] call_cpuidle+0x23/0x40 [80484.782271] do_idle+0x19a/0x200 [80484.782273] cpu_startup_entry+0x73/0x80 [80484.782276] rest_init+0xbc/0xc0 [80484.782279] start_kernel+0x4c0/0x4e1 [80484.782281] ? early_idt_handler_array+0x120/0x120 [80484.782283] x86_64_start_reservations+0x24/0x26 [80484.782285] x86_64_start_kernel+0x13e/0x161 [80484.782288] secondary_startup_64+0x9f/0x9f [80484.782289] Code: 00 3b 83 30 05 00 00 0f 88 c7 01 00 00 0f b6 83 3c 06 00 00 80 a3 cd 05 00 00 7f c0 e8 04 84 c0 0f 85 37 fb ff ff e9 28 fb ff ff <0f> ff e9 3d f9 ff ff 31 d2 48 89 df e8 1f a2 ff ff e9 f2 f9 ff [80484.782309] ---[ end trace 9e547fb81a56641c ]--- --- ApportVersion: 2.20.7-0ubuntu3.5 Architecture: amd64 AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/dsp', '/dev/snd/by-id', '/dev/snd/pcmC2D0c', '/dev/snd/controlC2', '/dev/snd/by-path', '/dev/snd/hwC0D0', '/dev/snd/pcmC0D2c', '/dev/snd/pcmC0D1p', '/dev/snd/pcmC0D0c', '/dev/snd/pcmC0D0p', '/dev/snd/controlC0', '/dev/snd/hwC1D0', '/dev/snd/pcmC1D3p', '/dev/snd/controlC1', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1: DistroRelease: Ubuntu 17.10 HibernationDevice: RESUME=UUID=8e204f61-30ff-4474-b637-2c8a6be5b451 InstallationDate: Installed on 2010-07-01 (2702 days ago) InstallationMedia: Ubuntu-Server 10.04 LTS "Lucid Lynx" - Release amd64 (20100427) MachineType: To be filled by O.E.M. To be filled by O.E.M. NonfreeKernelModules: zfs zunicode zavl zcommon znvpair Package: linux (not installed) ProcEnviron: TERM=xterm PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=it_IT.UTF-8 SHELL=/bin/bash ProcFB: 0 radeondrmfb ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.13.0-17-generic root=/dev/mapper/vg001-system ro rootflags=subvol=@root noplymouth noquiet nosplash elevator=noop bootdegraded=true nomdmonddf nomdmonisw ProcVersionSignature: Ubuntu 4.13.0-17.20-generic 4.13.8 PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: Failed to create secure directory (/run/user/1000/pulse): No such file or directory No PulseAudio daemon running, or not running as session daemon. RelatedPackageVersions: linux-restricted-modules-4.13.0-17-generic N/A linux-backports-modules-4.13.0-17-generic N/A linux-firmware 1.169 RfKill: Tags: artful Uname: Linux 4.13.0-17-generic x86_64 UpgradeStatus: Upgraded to artful on 2017-10-27 (26 days ago) UserGroups: adm admin audio cdrom dialout kvm libvirt libvirtd lpadmin plugdev pulse-access sambashare saned vboxusers video _MarkForUpload: True dmi.bios.date: 10/16/2012 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: 1604 dmi.board.asset.tag: To be filled by O.E.M. dmi.board.name: SABERTOOTH 990FX dmi.board.vendor: ASUSTeK COMPUTER INC. dmi.board.version: Rev 1.xx dmi.chassis.asset.tag: To Be Filled By O.E.M. dmi.chassis.type: 3 dmi.chassis.vendor: To Be Filled By O.E.M. dmi.chassis.version: To Be Filled By O.E.M. dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr1604:bd10/16/2012:svnTobefilledbyO.E.M.:pnTobefilledbyO.E.M.:pvrTobefilledbyO.E.M.:rvnASUSTeKCOMPUTERINC.:rnSABERTOOTH990FX:rvrRev1.xx:cvnToBeFilledByO.E.M.:ct3:cvrToBeFilledByO.E.M.: dmi.product.family: To be filled by O.E.M. dmi.product.name: To be filled by O.E.M. dmi.product.version: To be filled by O.E.M. dmi.sys.vendor: To be filled by O.E.M. 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