Well, reason could by anything. Most users of this chip version don't have this problem, so it may be the BIOS. Is known meanwhile whether any (mainline) kernel version is fine on this system (so that issue can be bisected)? Also interesting would be whether the issue happens with r8168 too.
-- 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/1874464 Title: NETDEV WATCHDOG: enp5s0 (r8169): transmit queue 0 timed out Status in linux package in Ubuntu: Confirmed Status in linux source package in Focal: Incomplete Status in linux source package in Groovy: Confirmed Bug description: Running focal on a desktop, I accidentally clicked "Enable networking" in nm-applet, disabling my networking. When I clicked it again to reenable it, my networking did not return. After unsuccessfully poking at it for a while, I rebooted and saw the below (and still no networking). `rmmod r8169; modprobe r8169` had no (apparent) effect, nor did further reboots. I rebooted onto two different kernels, both exhibited the same behaviour: 5.4.0-21-generic, 5.4.0-26-generic. I was finally only able to restore networking by _rebooting into Windows_ and then rebooting back into Ubuntu. (My supposition is that NetworkManager/the kernel set *waves hands* something on the network card that persists across boots when it was disabled, and that wasn't correctly unset when I reenabled networking (or on following boots), but Windows _does_ correctly handle that case on boot, and reset it to a working state.) Apr 23 10:07:43 surprise kernel: ------------[ cut here ]------------ Apr 23 10:07:43 surprise kernel: NETDEV WATCHDOG: enp5s0 (r8169): transmit queue 0 timed out Apr 23 10:07:43 surprise kernel: WARNING: CPU: 9 PID: 0 at net/sched/sch_generic.c:447 dev_watchdog+0x258/0x260 Apr 23 10:07:43 surprise kernel: Modules linked in: zfs(PO) zunicode(PO) zavl(PO) icp(PO) zcommon(PO) znvpair(PO) spl(O) zlua(PO) xt_comment dummy xt_CHECKSUM xt_MASQUERADE xt_conntrack ipt_REJECT nf_reject_ipv4 xt_tcpudp ip6table_mangle ip6table_nat iptable_mangle iptable_nat nf_> Apr 23 10:07:43 surprise kernel: autofs4 btrfs xor zstd_compress raid6_pq libcrc32c dm_crypt hid_microsoft ff_memless hid_logitech_hidpp hid_logitech_dj hid_generic usbhid hid nvidia_drm(POE) nvidia_modeset(POE) nvidia(POE) crct10dif_pclmul crc32_pclmul ghash_clmulni_intel drm_km> Apr 23 10:07:43 surprise kernel: CPU: 9 PID: 0 Comm: swapper/9 Tainted: P OE 5.4.0-26-generic #30-Ubuntu Apr 23 10:07:43 surprise kernel: Hardware name: Gigabyte Technology Co., Ltd. B450M DS3H/B450M DS3H-CF, BIOS F4 01/25/2019 Apr 23 10:07:43 surprise kernel: RIP: 0010:dev_watchdog+0x258/0x260 Apr 23 10:07:43 surprise kernel: Code: 85 c0 75 e5 eb 9f 4c 89 ff c6 05 bf 06 e8 00 01 e8 6d bb fa ff 44 89 e9 4c 89 fe 48 c7 c7 50 6d a3 b4 48 89 c2 e8 83 3f 71 ff <0f> 0b eb 80 0f 1f 40 00 0f 1f 44 00 00 55 48 89 e5 41 57 49 89 d7 Apr 23 10:07:43 surprise kernel: RSP: 0018:ffffa90d40378e30 EFLAGS: 00010286 Apr 23 10:07:43 surprise kernel: RAX: 0000000000000000 RBX: ffff8a7578b00400 RCX: 0000000000000000 Apr 23 10:07:43 surprise kernel: RDX: ffff8a758ee67740 RSI: ffff8a758ee578c8 RDI: 0000000000000300 Apr 23 10:07:43 surprise kernel: RBP: ffffa90d40378e60 R08: ffff8a758ee578c8 R09: 0000000000000004 Apr 23 10:07:43 surprise kernel: R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000001 Apr 23 10:07:43 surprise kernel: R13: 0000000000000000 R14: ffff8a758cadc480 R15: ffff8a758cadc000 Apr 23 10:07:43 surprise kernel: FS: 0000000000000000(0000) GS:ffff8a758ee40000(0000) knlGS:0000000000000000 Apr 23 10:07:43 surprise kernel: CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 Apr 23 10:07:43 surprise kernel: CR2: 00007f4d2000d5eb CR3: 00000003fcfe2000 CR4: 00000000003406e0 Apr 23 10:07:43 surprise kernel: Call Trace: Apr 23 10:07:43 surprise kernel: <IRQ> Apr 23 10:07:43 surprise kernel: ? pfifo_fast_enqueue+0x150/0x150 Apr 23 10:07:43 surprise kernel: call_timer_fn+0x32/0x130 Apr 23 10:07:43 surprise kernel: __run_timers.part.0+0x180/0x280 Apr 23 10:07:43 surprise kernel: ? tick_sched_handle+0x33/0x60 Apr 23 10:07:43 surprise kernel: ? tick_sched_timer+0x3d/0x80 Apr 23 10:07:43 surprise kernel: ? ktime_get+0x3e/0xa0 Apr 23 10:07:43 surprise kernel: run_timer_softirq+0x2a/0x50 Apr 23 10:07:43 surprise kernel: __do_softirq+0xe1/0x2d6 Apr 23 10:07:43 surprise kernel: ? hrtimer_interrupt+0x13b/0x220 Apr 23 10:07:43 surprise kernel: irq_exit+0xae/0xb0 Apr 23 10:07:43 surprise kernel: smp_apic_timer_interrupt+0x7b/0x140 Apr 23 10:07:43 surprise kernel: apic_timer_interrupt+0xf/0x20 Apr 23 10:07:43 surprise kernel: </IRQ> Apr 23 10:07:43 surprise kernel: RIP: 0010:cpuidle_enter_state+0xc5/0x450 Apr 23 10:07:43 surprise kernel: Code: ff e8 df 0d 81 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 32 7a 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 Apr 23 10:07:43 surprise kernel: RSP: 0018:ffffa90d4016fe38 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 Apr 23 10:07:43 surprise kernel: RAX: ffff8a758ee6ad00 RBX: ffffffffb4d69160 RCX: 000000000000001f Apr 23 10:07:43 surprise kernel: RDX: 0000000000000000 RSI: 00000000239f52d0 RDI: 0000000000000000 Apr 23 10:07:43 surprise kernel: RBP: ffffa90d4016fe78 R08: 0000011276ac078f R09: 00000000000148ba Apr 23 10:07:43 surprise kernel: R10: ffff8a758ee69a00 R11: ffff8a758ee699e0 R12: ffff8a757a318000 Apr 23 10:07:43 surprise kernel: R13: 0000000000000002 R14: 0000000000000002 R15: ffff8a757a318000 Apr 23 10:07:43 surprise kernel: ? cpuidle_enter_state+0xa1/0x450 Apr 23 10:07:43 surprise kernel: cpuidle_enter+0x2e/0x40 Apr 23 10:07:43 surprise kernel: call_cpuidle+0x23/0x40 Apr 23 10:07:43 surprise kernel: do_idle+0x1dd/0x270 Apr 23 10:07:43 surprise kernel: cpu_startup_entry+0x20/0x30 Apr 23 10:07:43 surprise kernel: start_secondary+0x167/0x1c0 Apr 23 10:07:43 surprise kernel: secondary_startup_64+0xa4/0xb0 Apr 23 10:07:43 surprise kernel: ---[ end trace cf93a9794ecfd126 ]--- ProblemType: Bug DistroRelease: Ubuntu 20.04 Package: linux-generic 5.4.0.26.32 ProcVersionSignature: Ubuntu 5.4.0-26.30-generic 5.4.30 Uname: Linux 5.4.0-26-generic x86_64 NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair nvidia_modeset nvidia ApportVersion: 2.20.11-0ubuntu27 Architecture: amd64 CasperMD5CheckResult: skip CurrentDesktop: i3 Date: Thu Apr 23 10:38:05 2020 InstallationDate: Installed on 2019-05-07 (351 days ago) InstallationMedia: Ubuntu 18.04.2 LTS "Bionic Beaver" - Release amd64 (20190210) MachineType: Gigabyte Technology Co., Ltd. B450M DS3H ProcFB: 0 EFI VGA ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-5.4.0-26-generic root=/dev/mapper/ubuntu--vg-root ro quiet splash resume=UUID=73909634-a75d-42c9-8f66-a69138690756 vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-5.4.0-26-generic N/A linux-backports-modules-5.4.0-26-generic N/A linux-firmware 1.187 RfKill: SourcePackage: linux UpgradeStatus: Upgraded to focal on 2019-11-15 (159 days ago) dmi.bios.date: 01/25/2019 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: F4 dmi.board.asset.tag: Default string dmi.board.name: B450M DS3H-CF dmi.board.vendor: Gigabyte Technology Co., Ltd. dmi.board.version: x.x dmi.chassis.asset.tag: Default string dmi.chassis.type: 3 dmi.chassis.vendor: Default string dmi.chassis.version: Default string dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrF4:bd01/25/2019:svnGigabyteTechnologyCo.,Ltd.:pnB450MDS3H:pvrDefaultstring:rvnGigabyteTechnologyCo.,Ltd.:rnB450MDS3H-CF:rvrx.x:cvnDefaultstring:ct3:cvrDefaultstring: dmi.product.family: Default string dmi.product.name: B450M DS3H dmi.product.sku: Default string dmi.product.version: Default string dmi.sys.vendor: Gigabyte Technology Co., Ltd. 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