I saw this traceback on the 4.15.18 mainline build:
Sep 04 14:47:41 surprise kernel: ------------[ cut here ]------------
Sep 04 14:47:41 surprise kernel: NETDEV WATCHDOG: enp5s0 (r8169): transmit
queue 0 timed out
Sep 04 14:47:41 surprise kernel: WARNING: CPU: 11 PID: 0 at
/home/kernel/COD/linux/net/sched/sch_generic.c:323 dev_watchdog+0x221/0x230
Sep 04 14:47:41 surprise kernel: Modules linked in: devlink nft_meta nft_compat
ipt_REJECT nf_reject_ipv4 xt_conntrack ipt_MASQUERADE nf_nat_masquerade_ipv4
xt_CHECKSUM xt_comment xt_tcpudp nft_chain_route_ipv6 iptable_mangle
iptable_nat nft_chain_nat_ipv6 nf_conntrack_ipv6 nf_def>
Sep 04 14:47:41 surprise kernel: videodev joydev input_leds media snd_seq
snd_seq_device irqbypass snd_timer k10temp wmi_bmof snd ccp nvidia_uvm(OE) 8250
soundcore 8250_base shpchp mac_hid wmi iptable_filter ip6table_filter
ip6_tables br_netfilter bridge stp llc arp_tables parpor>
Sep 04 14:47:41 surprise kernel: CPU: 11 PID: 0 Comm: swapper/11 Tainted: P
OE 4.15.18-041518-generic #201804190330
Sep 04 14:47:41 surprise kernel: Hardware name: Gigabyte Technology Co., Ltd.
B450M DS3H/B450M DS3H-CF, BIOS F4 01/25/2019
Sep 04 14:47:41 surprise kernel: RIP: 0010:dev_watchdog+0x221/0x230
Sep 04 14:47:41 surprise kernel: RSP: 0018:ffff96204e8c3e58 EFLAGS: 00010286
Sep 04 14:47:41 surprise kernel: RAX: 0000000000000000 RBX: 0000000000000000
RCX: 0000000000000000
Sep 04 14:47:41 surprise kernel: RDX: 0000000000040400 RSI: 00000000000000f6
RDI: 0000000000000300
Sep 04 14:47:41 surprise kernel: RBP: ffff96204e8c3e88 R08: 0000000000000001
R09: 00000000000004c6
Sep 04 14:47:41 surprise kernel: R10: ffff96204e8c3ee0 R11: 0000000000000000
R12: 0000000000000001
Sep 04 14:47:41 surprise kernel: R13: ffff96204e32e000 R14: ffff96204e32e478
R15: ffff96203bd19880
Sep 04 14:47:41 surprise kernel: FS: 0000000000000000(0000)
GS:ffff96204e8c0000(0000) knlGS:0000000000000000
Sep 04 14:47:41 surprise kernel: CS: 0010 DS: 0000 ES: 0000 CR0:
0000000080050033
Sep 04 14:47:41 surprise kernel: CR2: 00007f564479a0c0 CR3: 000000040adb0000
CR4: 00000000003406e0
Sep 04 14:47:41 surprise kernel: Call Trace:
Sep 04 14:47:41 surprise kernel: <IRQ>
Sep 04 14:47:41 surprise kernel: ? dev_deactivate_queue.constprop.33+0x60/0x60
Sep 04 14:47:41 surprise kernel: call_timer_fn+0x30/0x130
Sep 04 14:47:41 surprise kernel: run_timer_softirq+0x3fb/0x450
Sep 04 14:47:41 surprise kernel: ? ktime_get+0x43/0xa0
Sep 04 14:47:41 surprise kernel: ? lapic_next_event+0x20/0x30
Sep 04 14:47:41 surprise kernel: __do_softirq+0xdf/0x2b2
Sep 04 14:47:41 surprise kernel: irq_exit+0xb6/0xc0
Sep 04 14:47:41 surprise kernel: smp_apic_timer_interrupt+0x71/0x130
Sep 04 14:47:41 surprise kernel: apic_timer_interrupt+0x84/0x90
Sep 04 14:47:41 surprise kernel: </IRQ>
Sep 04 14:47:41 surprise kernel: RIP: 0010:cpuidle_enter_state+0xa7/0x2f0
Sep 04 14:47:41 surprise kernel: RSP: 0018:ffffabdc019fbe68 EFLAGS: 00000246
ORIG_RAX: ffffffffffffff11
Sep 04 14:47:41 surprise kernel: RAX: ffff96204e8e2880 RBX: 00000013b8893c67
RCX: 000000000000001f
Sep 04 14:47:41 surprise kernel: RDX: 00000013b8893c67 RSI: fffffffc216ba992
RDI: 0000000000000000
Sep 04 14:47:41 surprise kernel: RBP: ffffabdc019fbea8 R08: 00000000000105ec
R09: 0000000000000018
Sep 04 14:47:41 surprise kernel: R10: ffffabdc019fbe38 R11: 000000000000386e
R12: ffff96203cae1800
Sep 04 14:47:41 surprise kernel: R13: 0000000000000002 R14: ffffffffb1f80098
R15: 0000000000000000
Sep 04 14:47:41 surprise kernel: ? cpuidle_enter_state+0x97/0x2f0
Sep 04 14:47:41 surprise kernel: cpuidle_enter+0x17/0x20
Sep 04 14:47:41 surprise kernel: call_cpuidle+0x23/0x40
Sep 04 14:47:41 surprise kernel: do_idle+0x18c/0x1f0
Sep 04 14:47:41 surprise kernel: cpu_startup_entry+0x73/0x80
Sep 04 14:47:41 surprise kernel: start_secondary+0x1a6/0x200
Sep 04 14:47:41 surprise kernel: secondary_startup_64+0xa5/0xb0
Sep 04 14:47:41 surprise kernel: Code: 39 00 49 63 4e e8 eb 92 4c 89 ef c6 05
87 d7 d9 00 01 e8 83 39 fd ff 89 d9 48 89 c2 4c 89 ee 48 c7 c7 c8 68 b8 b1 e8
ff a4 81 ff <0f> 0b eb c0 90 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 55
Sep 04 14:47:41 surprise kernel: ---[ end trace a02a9c8ad08e0a55 ]---
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https://bugs.launchpad.net/bugs/1874464
Title:
NETDEV WATCHDOG: enp5s0 (r8169): transmit queue 0 timed out
Status in linux package in Ubuntu:
Incomplete
Status in linux source package in Focal:
Incomplete
Status in linux source package in Groovy:
Incomplete
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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