Hi, I had the same issue, what happend is that the network went down and the server flooded the switch with traffic.
Mar 1 19:51:08 microserver kernel: [76180.035137] ------------[ cut here ]------------ Mar 1 19:51:08 microserver kernel: [76180.035142] NETDEV WATCHDOG: eno1 (tg3): transmit queue 0 timed out Mar 1 19:51:08 microserver kernel: [76180.035172] WARNING: CPU: 1 PID: 0 at net/sched/sch_generic.c:447 dev_watchdog+0x258/0x260 Mar 1 19:51:08 microserver kernel: [76180.035174] Modules linked in: vhost_net vhost tap xt_CHECKSUM xt_conntrack ipt_REJECT nf_reject_ipv4 xt_tcpudp ip6table_mangle ip6table_nat iptable_mangle nf_tables nfnetlink ip6table_filter ip6_tables aufs iptable_nat xt_MASQUERADE nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 iptable_filter bpfilter wireguard ip6_udp_tunnel udp_tunnel overlay bridge stp llc binfmt_misc intel_rapl_msr intel_rapl_common x86_pkg_temp_thermal intel_powerclamp coretemp kvm_intel kvm mgag200 crct10dif_pclmul drm_vram_helper ipmi_ssif ghash_clmulni_intel ttm aesni_intel crypto_simd drm_kms_helper cryptd glue_helper i2c_algo_bit fb_sys_fops syscopyarea sysfillrect sysimgblt rapl intel_cstate serio_raw hpilo joydev ipmi_si input_leds ipmi_devintf ie31200_edac ipmi_msghandler mac_hid acpi_power_meter sch_fq_codel parport_pc drm ppdev lp parport sunrpc ip_tables x_tables autofs4 btrfs zstd_compress raid10 raid456 async_raid6_recov async_memcpy async_pq async_xor async_tx xor raid6_pq libcrc32c raid1 raid0 Mar 1 19:51:08 microserver kernel: [76180.035222] multipath linear hid_generic usbhid hid gpio_ich crc32_pclmul lpc_ich psmouse ahci libahci tg3 Mar 1 19:51:08 microserver kernel: [76180.035231] CPU: 1 PID: 0 Comm: swapper/1 Not tainted 5.4.0-66-generic #74-Ubuntu Mar 1 19:51:08 microserver kernel: [76180.035232] Hardware name: HP ProLiant MicroServer Gen8, BIOS J06 04/04/2019 Mar 1 19:51:08 microserver kernel: [76180.035235] RIP: 0010:dev_watchdog+0x258/0x260 Mar 1 19:51:08 microserver kernel: [76180.035238] Code: 85 c0 75 e5 eb 9f 4c 89 ff c6 05 ae 8f e7 00 01 e8 0d b2 fa ff 44 89 e9 4c 89 fe 48 c7 c7 58 a3 83 a1 48 89 c2 e8 c3 c3 70 ff <0f> 0b eb 80 0f 1f 40 00 66 66 66 66 90 55 48 89 e5 41 57 49 89 d7 Mar 1 19:51:08 microserver kernel: [76180.035240] RSP: 0018:ffffb90fc02b0e30 EFLAGS: 00010286 Mar 1 19:51:08 microserver kernel: [76180.035242] RAX: 0000000000000000 RBX: ffff8eaa762bf500 RCX: 0000000000000006 Mar 1 19:51:08 microserver kernel: [76180.035243] RDX: 0000000000000007 RSI: 0000000000000096 RDI: ffff8eaa7aa578c0 Mar 1 19:51:08 microserver kernel: [76180.035244] RBP: ffffb90fc02b0e60 R08: 00000000000003ea R09: 0000000000000004 Mar 1 19:51:08 microserver kernel: [76180.035245] R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000005 Mar 1 19:51:08 microserver kernel: [76180.035246] R13: 0000000000000000 R14: ffff8eaa762ea480 R15: ffff8eaa762ea000 Mar 1 19:51:08 microserver kernel: [76180.035248] FS: 0000000000000000(0000) GS:ffff8eaa7aa40000(0000) knlGS:0000000000000000 Mar 1 19:51:08 microserver kernel: [76180.035250] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 Mar 1 19:51:08 microserver kernel: [76180.035251] CR2: 00000ffe09da5000 CR3: 00000001b1e0a004 CR4: 00000000000626e0 Mar 1 19:51:08 microserver kernel: [76180.035252] Call Trace: Mar 1 19:51:08 microserver kernel: [76180.035255] <IRQ> Mar 1 19:51:08 microserver kernel: [76180.035259] ? pfifo_fast_enqueue+0x150/0x150 Mar 1 19:51:08 microserver kernel: [76180.035264] call_timer_fn+0x32/0x130 Mar 1 19:51:08 microserver kernel: [76180.035267] __run_timers.part.0+0x180/0x280 Mar 1 19:51:08 microserver kernel: [76180.035270] ? timerqueue_add+0x68/0xb0 Mar 1 19:51:08 microserver kernel: [76180.035272] ? enqueue_hrtimer+0x3d/0x90 Mar 1 19:51:08 microserver kernel: [76180.035277] ? recalibrate_cpu_khz+0x10/0x10 Mar 1 19:51:08 microserver kernel: [76180.035279] ? ktime_get+0x3e/0xa0 Mar 1 19:51:08 microserver kernel: [76180.035282] run_timer_softirq+0x2a/0x50 Mar 1 19:51:08 microserver kernel: [76180.035285] __do_softirq+0xe1/0x2d6 Mar 1 19:51:08 microserver kernel: [76180.035288] ? hrtimer_interrupt+0x13b/0x220 Mar 1 19:51:08 microserver kernel: [76180.035291] irq_exit+0xae/0xb0 Mar 1 19:51:08 microserver kernel: [76180.035293] smp_apic_timer_interrupt+0x7b/0x140 Mar 1 19:51:08 microserver kernel: [76180.035296] apic_timer_interrupt+0xf/0x20 Mar 1 19:51:08 microserver kernel: [76180.035297] </IRQ> Mar 1 19:51:08 microserver kernel: [76180.035301] RIP: 0010:cpuidle_enter_state+0xc2/0x450 Mar 1 19:51:08 microserver kernel: [76180.035303] Code: 66 90 31 ff e8 ff aa 80 ff 80 7d c7 00 74 17 9c 58 66 66 90 66 90 f6 c4 02 0f 85 65 03 00 00 31 ff e8 e2 16 87 ff fb 66 66 90 <66> 66 90 45 85 ed 0f 88 8f 02 00 00 49 63 cd 4c 8b 7d d0 4c 2b 7d Mar 1 19:51:08 microserver kernel: [76180.035304] RSP: 0018:ffffb90fc0083e38 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 Mar 1 19:51:08 microserver kernel: [76180.035306] RAX: ffff8eaa7aa6adc0 RBX: ffffffffa1b59f20 RCX: 000000000000001f Mar 1 19:51:08 microserver kernel: [76180.035307] RDX: 0000000000000000 RSI: 000000003a5062a9 RDI: 0000000000000000 Mar 1 19:51:08 microserver kernel: [76180.035309] RBP: ffffb90fc0083e78 R08: 000045490beebd96 R09: 0000000000000001 Mar 1 19:51:08 microserver kernel: [76180.035310] R10: ffff8eaa7aa69ac0 R11: ffff8eaa7aa69aa0 R12: ffff8eaa7aa76100 Mar 1 19:51:08 microserver kernel: [76180.035311] R13: 0000000000000004 R14: 0000000000000004 R15: ffff8eaa7aa76100 Mar 1 19:51:08 microserver kernel: [76180.035315] ? cpuidle_enter_state+0xa1/0x450 Mar 1 19:51:08 microserver kernel: [76180.035317] cpuidle_enter+0x2e/0x40 Mar 1 19:51:08 microserver kernel: [76180.035320] call_cpuidle+0x23/0x40 Mar 1 19:51:08 microserver kernel: [76180.035322] do_idle+0x1dd/0x270 Mar 1 19:51:08 microserver kernel: [76180.035325] cpu_startup_entry+0x20/0x30 Mar 1 19:51:08 microserver kernel: [76180.035328] start_secondary+0x167/0x1c0 Mar 1 19:51:08 microserver kernel: [76180.035332] secondary_startup_64+0xa4/0xb0 Mar 1 19:51:08 microserver kernel: [76180.035334] ---[ end trace c6c9647fa3c4f2b9 ]--- Mar 1 19:51:08 microserver kernel: [76180.035340] tg3 0000:03:00.0 eno1: transmit timed out, resetting Mar 1 19:51:09 microserver kernel: [76181.303504] tg3 0000:03:00.0 eno1: 0x00000000: 0x165f14e4, 0x00100446, 0x02000000, 0x00800010 Mar 1 19:51:09 microserver kernel: [76181.303545] tg3 0000:03:00.0 eno1: 0x00000010: 0xfabf000c, 0x00000000, 0xfabe000c, 0x00000000 and then periodic: Mar 1 19:51:09 microserver kernel: [76181.408878] tg3 0000:03:00.0 eno1: 0x00007030: 0x00020000, 0x00004af8, 0x00190030, 0x00000000 Mar 1 19:51:09 microserver kernel: [76181.409189] tg3 0000:03:00.0 eno1: 0: Host status block [00000001:000000f4:(0000:00ca:0000):(0000:00d3)] Mar 1 19:51:09 microserver kernel: [76181.409512] tg3 0000:03:00.0 eno1: 0: NAPI info [000000f4:000000f4:(00c0:00d3:01ff):0000:(038f:0000:0000:0000)] Mar 1 19:51:09 microserver kernel: [76181.409853] tg3 0000:03:00.0 eno1: 1: Host status block [00000001:00000010:(0000:0000:0000):(0a9a:0000)] Mar 1 19:51:09 microserver kernel: [76181.410201] tg3 0000:03:00.0 eno1: 1: NAPI info [00000010:00000010:(0000:0000:01ff):0a9a:(029a:029a:0000:0000)] Mar 1 19:51:09 microserver kernel: [76181.410563] tg3 0000:03:00.0 eno1: 2: Host status block [00000001:00000006:(0bd7:0000:0000):(0000:0000)] Mar 1 19:51:09 microserver kernel: [76181.410937] tg3 0000:03:00.0 eno1: 2: NAPI info [00000000:00000000:(0000:0000:01ff):0bd1:(03d1:03d1:0000:0000)] Mar 1 19:51:09 microserver kernel: [76181.411331] tg3 0000:03:00.0 eno1: 3: Host status block [00000001:00000039:(0000:0000:0000):(0000:0000)] Mar 1 19:51:09 microserver kernel: [76181.411943] tg3 0000:03:00.0 eno1: 3: NAPI info [00000038:00000038:(0000:0000:01ff):0dc5:(05c5:05c5:0000:0000)] Mar 1 19:51:09 microserver kernel: [76181.412610] tg3 0000:03:00.0 eno1: 4: Host status block [00000001:0000009b:(0000:0000:0697):(0000:0000)] Mar 1 19:51:09 microserver kernel: [76181.413282] tg3 0000:03:00.0 eno1: 4: NAPI info [0000009b:0000009b:(0000:0000:01ff):0697:(0697:0697:0000:0000)] Mar 1 19:51:09 microserver kernel: [76181.542591] tg3 0000:03:00.0 eno1: Link is down Mar 1 19:51:09 microserver kernel: [76181.667610] br0: port 1(eno1) entered disabled state Mar 1 19:51:13 microserver kernel: [76185.280312] tg3 0000:03:00.0 eno1: Link is up at 1000 Mbps, full duplex Mar 1 19:51:13 microserver kernel: [76185.280315] tg3 0000:03:00.0 eno1: Flow control is on for TX and on for RX Mar 1 19:51:13 microserver kernel: [76185.280316] tg3 0000:03:00.0 eno1: EEE is enabled Mar 1 19:51:13 microserver kernel: [76185.280342] br0: port 1(eno1) entered blocking state Mar 1 19:51:13 microserver kernel: [76185.280347] br0: port 1(eno1) entered forwarding state Mar 1 19:51:23 microserver kernel: [76195.907151] tg3 0000:03:00.0 eno1: transmit timed out, resetting Mar 1 19:51:25 microserver kernel: [76197.174266] tg3 0000:03:00.0 eno1: 0x00000000: 0x165f14e4, 0x00100446, 0x02000000, 0x00800010 Mar 1 19:51:25 microserver kernel: [76197.174972] tg3 0000:03:00.0 eno1: 0x00000010: 0xfabf000c, 0x00000000, 0xfabe000c, 0x00000000 Switch is a unmaged netgear gigabit SOHO switch. -- 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/1893703 Title: CPU: 2 PID: 0 at net/sched/sch_generic.c:447 dev_watchdog+0x258/0x260 Status in linux package in Ubuntu: Confirmed Bug description: Linux af1 5.4.0-45-generic #49-Ubuntu SMP Wed Aug 26 13:38:52 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux this bug is about this portion of my dmesg: [15849.218159] ------------[ cut here ]------------ [15849.218167] NETDEV WATCHDOG: enx3c18a0702516 (r8152): transmit queue 0 timed out [15849.218224] WARNING: CPU: 2 PID: 0 at net/sched/sch_generic.c:447 dev_watchdog+0x258/0x260 [15849.218226] Modules linked in: rfcomm xt_tcpudp xt_state xt_conntrack iptable_mangle iptable_nat nf_nat iptable_filter bpfilter nf_conntrack_ftp nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 libcrc32c vboxnetadp(O) vboxnetflt(O) vboxdrv(O) cmac algif_hash algif_skcipher af_alg bnep binfmt_misc nls_iso8859_1 snd_hda_codec_hdmi iwlmvm snd_hda_codec_realtek mei_hdcp snd_hda_codec_generic mac80211 intel_rapl_msr ledtrig_audio x86_pkg_temp_thermal snd_hda_intel libarc4 intel_powerclamp kvm_intel snd_intel_dspcfg btusb snd_hda_codec snd_usb_audio kvm btrtl snd_hda_core cdc_ether btbcm snd_usbmidi_lib usbnet uvcvideo rapl btintel snd_hwdep r8152 iwlwifi bluetooth rmi_smbus snd_pcm intel_cstate rmi_core mii snd_seq_midi snd_seq_midi_event videobuf2_vmalloc ecdh_generic ecc snd_rawmidi videobuf2_memops cfg80211 videobuf2_v4l2 snd_seq hid_sensor_magn_3d hid_sensor_gyro_3d hid_sensor_accel_3d hid_sensor_rotation hid_sensor_incl_3d videobuf2_common snd_seq_device hid_sensor_trigger videodev input_leds [15849.218297] mei_me industrialio_triggered_buffer snd_timer kfifo_buf serio_raw mei hid_sensor_iio_common snd hp_wmi industrialio intel_wmi_thunderbolt wmi_bmof mc soundcore joydev intel_xhci_usb_role_switch roles cros_ec_ishtp processor_thermal_device intel_rapl_common cros_ec hid_multitouch intel_soc_dts_iosf intel_pch_thermal mac_hid acpi_pad hp_wireless intel_vbtn int3403_thermal int3400_thermal int340x_thermal_zone acpi_thermal_rel sparse_keymap sch_fq_codel coretemp parport_pc ppdev lp parport ip_tables x_tables autofs4 dm_crypt usbhid hid_sensor_custom hid_sensor_hub intel_ishtp_loader intel_ishtp_hid uas usb_storage hid_generic i915 crct10dif_pclmul crc32_pclmul ghash_clmulni_intel aesni_intel crypto_simd i2c_algo_bit nvme cryptd glue_helper psmouse drm_kms_helper intel_ish_ipc syscopyarea sysfillrect i2c_i801 sysimgblt fb_sys_fops intel_lpss_pci nvme_core intel_lpss drm idma64 virt_dma intel_ishtp i2c_hid hid wmi pinctrl_sunrisepoint pinctrl_intel video [15849.218372] CPU: 2 PID: 0 Comm: swapper/2 Tainted: G O 5.4.0-45-generic #49-Ubuntu [15849.218375] Hardware name: HP HP Spectre x360 Convertible 13-w0XX/827E, BIOS F.49 05/03/2019 [15849.218380] RIP: 0010:dev_watchdog+0x258/0x260 [15849.218386] Code: 85 c0 75 e5 eb 9f 4c 89 ff c6 05 cf d1 e7 00 01 e8 fd b6 fa ff 44 89 e9 4c 89 fe 48 c7 c7 10 86 23 94 48 89 c2 e8 53 0a 71 ff <0f> 0b eb 80 0f 1f 40 00 0f 1f 44 00 00 55 48 89 e5 41 57 49 89 d7 [15849.218388] RSP: 0018:ffffa8850014ce30 EFLAGS: 00010286 [15849.218392] RAX: 0000000000000000 RBX: ffff8edb2478ec00 RCX: 0000000000000006 [15849.218395] RDX: 0000000000000007 RSI: 0000000000000096 RDI: ffff8edb2eb178c0 [15849.218397] RBP: ffffa8850014ce60 R08: 0000000000000420 R09: 0000000000000004 [15849.218399] R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000001 [15849.218401] R13: 0000000000000000 R14: ffff8edb220a5480 R15: ffff8edb220a5000 [15849.218405] FS: 0000000000000000(0000) GS:ffff8edb2eb00000(0000) knlGS:0000000000000000 [15849.218408] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [15849.218411] CR2: 0000252d37ffb000 CR3: 000000039600a004 CR4: 00000000003606e0 [15849.218413] Call Trace: [15849.218416] <IRQ> [15849.218425] ? pfifo_fast_enqueue+0x150/0x150 [15849.218434] call_timer_fn+0x32/0x130 [15849.218442] __run_timers.part.0+0x180/0x280 [15849.218450] ? timerqueue_add+0x9b/0xb0 [15849.218453] ? enqueue_hrtimer+0x3d/0x90 [15849.218461] ? recalibrate_cpu_khz+0x10/0x10 [15849.218465] ? ktime_get+0x3e/0xa0 [15849.218472] run_timer_softirq+0x2a/0x50 [15849.218477] __do_softirq+0xe1/0x2d6 [15849.218481] ? hrtimer_interrupt+0x13b/0x220 [15849.218488] irq_exit+0xae/0xb0 [15849.218493] smp_apic_timer_interrupt+0x7b/0x140 [15849.218497] apic_timer_interrupt+0xf/0x20 [15849.218499] </IRQ> [15849.218505] RIP: 0010:cpuidle_enter_state+0xc5/0x450 [15849.218509] Code: ff e8 4f e2 80 ff 80 7d c7 00 74 17 9c 58 0f 1f 44 00 00 f6 c4 02 0f 85 65 03 00 00 31 ff e8 52 4b 87 ff fb 66 0f 1f 44 00 00 <45> 85 ed 0f 88 8f 02 00 00 49 63 cd 4c 8b 7d d0 4c 2b 7d c8 48 8d [15849.218512] RSP: 0018:ffffa885000d7e38 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 [15849.218516] RAX: ffff8edb2eb2ad00 RBX: ffffffff94559c20 RCX: 000000000000001f [15849.218518] RDX: 0000000000000000 RSI: 000000002c13d500 RDI: 0000000000000000 [15849.218520] RBP: ffffa885000d7e78 R08: 00000e6a2f0461d2 R09: 000000007fffffff [15849.218523] R10: ffff8edb2eb29a00 R11: ffff8edb2eb299e0 R12: ffff8edb2eb35300 [15849.218525] R13: 0000000000000003 R14: 0000000000000003 R15: ffff8edb2eb35300 [15849.218532] ? cpuidle_enter_state+0xa1/0x450 [15849.218536] cpuidle_enter+0x2e/0x40 [15849.218542] call_cpuidle+0x23/0x40 [15849.218546] do_idle+0x1dd/0x270 [15849.218552] cpu_startup_entry+0x20/0x30 [15849.218557] start_secondary+0x167/0x1c0 [15849.218563] secondary_startup_64+0xa4/0xb0 [15849.218569] ---[ end trace 25a013feee31ffab ]--- ProblemType: Bug DistroRelease: Ubuntu 20.04 Package: linux-image-5.4.0-45-generic 5.4.0-45.49 ProcVersionSignature: Ubuntu 5.4.0-45.49-generic 5.4.55 Uname: Linux 5.4.0-45-generic x86_64 ApportVersion: 2.20.11-0ubuntu27.8 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: imi 2842 F.... pulseaudio /dev/snd/controlC1: imi 2842 F.... pulseaudio CasperMD5CheckResult: skip CurrentDesktop: ubuntu:GNOME Date: Tue Sep 1 00:28:36 2020 InstallationDate: Installed on 2019-11-23 (282 days ago) InstallationMedia: Ubuntu 19.10 "Eoan Ermine" - Release amd64 (20191017) MachineType: HP HP Spectre x360 Convertible 13-w0XX ProcEnviron: TERM=xterm-256color PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=hu_HU.UTF-8 SHELL=/bin/bash ProcFB: 0 i915drmfb ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-5.4.0-45-generic root=/dev/mapper/vg_af1-root ro quiet splash pcie_aspm=off vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-5.4.0-45-generic N/A linux-backports-modules-5.4.0-45-generic N/A linux-firmware 1.187.3 SourcePackage: linux UpgradeStatus: Upgraded to focal on 2020-06-03 (89 days ago) dmi.bios.date: 05/03/2019 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: F.49 dmi.board.asset.tag: Base Board Asset Tag dmi.board.name: 827E dmi.board.vendor: HP dmi.board.version: 94.71 dmi.chassis.type: 31 dmi.chassis.vendor: HP dmi.chassis.version: Chassis Version dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrF.49:bd05/03/2019:svnHP:pnHPSpectrex360Convertible13-w0XX:pvr:rvnHP:rn827E:rvr94.71:cvnHP:ct31:cvrChassisVersion: dmi.product.family: 103C_5335KV G=N L=CON B=HP S=SPT dmi.product.name: HP Spectre x360 Convertible 13-w0XX dmi.product.sku: Z9E46EA#ABV dmi.sys.vendor: HP To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1893703/+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
