Re: [Bug 1766377] Re: Ethernet E1000 Controller Hangs

[Robert Dinse]

I gave up on this ever being fixed since it's existed since 2.6 and
went and bought some Realtek ethernet cards, no problems since.  But, you
can work around this bug by turning hardware offloading off if efficiency
isn't an issue.

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On Mon, 6 Jul 2020, Ted Gerold wrote:

> Date: Mon, 06 Jul 2020 22:41:11 -
> From: Ted Gerold <1766...@bugs.launchpad.net>
> To: nan...@eskimo.com
> Subject: [Bug 1766377] Re: Ethernet E1000 Controller Hangs
> 
> I am also experiencing this issue.
>
> Distribution: Ubuntu 20.04 LTS
> Kernel: 5.4.0-26-generic
> Hardware: NUC10i7FNH - 2TB SSD - 64GB RAM
>
> [128476.886034] e1000e :00:1f.6 eno1: Detected Hardware Unit Hang:
>  TDH  
>  TDT  
>  next_to_use  
>  next_to_clean
>buffer_info[next_to_clean]:
>  time_stamp   <101e8eb91>
>  next_to_watch
>  jiffies  <101e8f598>
>  next_to_watch.status <0>
>MAC Status <40080083>
>PHY Status <796d>
>PHY 1000BASE-T Status  <3800>
>PHY Extended Status<3000>
>PCI Status <10>
> [128478.069750] e1000e :00:1f.6 eno1: Reset adapter unexpectedly
>
> -- 
> You received this bug notification because you are subscribed to the bug
> report.
> https://bugs.launchpad.net/bugs/1766377
>
> Title:
>  Ethernet E1000 Controller Hangs
>
> Status in linux package in Ubuntu:
>  Expired
> Status in linux source package in Bionic:
>  Confirmed
>
> Bug description:
>   With Bionic kernel 4.15.0-15 and 4.15.0-17 I am experiencing periodic 
> hanging of the LAN connection.  This is happening on an Asus X99-DELUX 
> motherboard, controller specifications:
>  Intel® I218V, 1 x Gigabit LAN Controller(s)
>  Intel® I211-AT, 1 x Gigabit LAN
>  Dual Gigabit LAN controllers- 802.3az Energy Efficient Ethernet (EEE) 
> appliance
>  Support Teaming Technology
>  ASUS Turbo LAN Utility
>  The CPU is an i7-6850 and it is configured with 128GB of DDR4 RAM.
>  This machine has a number of Qemu/KVM virtual guests and is using a software 
> bridge to share the interface.
>  This did not happen with 17.10 and 4.13.0 kernel.  It is happening on 
> multiple machines here.
>  Here are the messages from dmesg:
>  1016198.957850] e1000e :00:19.0 eno1: Detected Hardware Unit Hang:
> TDH  
> TDT  <2d>
> next_to_use  <2d>
> next_to_clean
>   buffer_info[next_to_clean]:
> time_stamp   <13c8d0008>
> next_to_watch
> jiffies  <13c8d0880>
> next_to_watch.status <0>
>   MAC Status <80083>
>   PHY Status <796d>
>   PHY 1000BASE-T Status  <3c00>
>   PHY Extended Status<3000>
>   PCI Status <10>
>  [1016200.942072] e1000e :00:19.0 eno1: Detected Hardware Unit Hang:
> TDH  
> TDT  <2d>
> next_to_use  <2d>
> next_to_clean
>   buffer_info[next_to_clean]:
> time_stamp   <13c8d0008>
> next_to_watch
> jiffies  <13c8d1040>
> next_to_watch.status <0>
>   MAC Status <80083>
>   PHY Status <796d>
>   PHY 1000BASE-T Status  <3c00>
>   PHY Extended Status<3000>
>   PCI Status <10>
>  [1016202.413607] e1000e :00:19.0 eno1: Reset adapter unexpectedly
>  [1016202.413701] bridge0: port 1(eno1) entered disabled state
>  [1016202.413732] bridge0: topology change detected, propagating
>  [1016206.76] e1000e: eno1 NIC Link is Up 1000 Mbps Full Duplex, Flow 
> Control: Rx/Tx
>  [1016206.666708] bridge0: port 1(eno1) entered blocking state
>  [1016206.666712] bridge0: port 1(eno1) entered listening state
>  [1016216.750911] bridge0: port 1(eno1) entered learning state
>  [1016232.110291] bridge0: port 1(eno1) entered forwarding state
>  [1016232.110294] bridge0: topology change detected, sending tcn bpdu
>  [1017834.390579] cfg80211: Loading compiled-in X.509 certificates for 
> regulatory database
>  [1017834.390770] 

Re: [Bug 1766377] Re: Ethernet E1000 Controller Hangs

[Robert Dinse]

I am no longer using E1000 based cards.

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On Thu, 5 Sep 2019, Kai-Heng Feng wrote:

> Date: Thu, 05 Sep 2019 09:13:13 -
> From: Kai-Heng Feng 
> Reply-To: Bug 1766377 <1766...@bugs.launchpad.net>
> To: nan...@eskimo.com
> Subject: [Bug 1766377] Re: Ethernet E1000 Controller Hangs
> 
> Please test latest mainline kernel:
> https://kernel.ubuntu.com/~kernel-ppa/mainline/v5.3-rc7/
>
> -- 
> You received this bug notification because you are subscribed to the bug
> report.
> https://bugs.launchpad.net/bugs/1766377
>
> Title:
>  Ethernet E1000 Controller Hangs
>
> Status in linux package in Ubuntu:
>  Expired
> Status in linux source package in Bionic:
>  Confirmed
>
> Bug description:
>   With Bionic kernel 4.15.0-15 and 4.15.0-17 I am experiencing periodic 
> hanging of the LAN connection.  This is happening on an Asus X99-DELUX 
> motherboard, controller specifications:
>  Intel® I218V, 1 x Gigabit LAN Controller(s)
>  Intel® I211-AT, 1 x Gigabit LAN
>  Dual Gigabit LAN controllers- 802.3az Energy Efficient Ethernet (EEE) 
> appliance
>  Support Teaming Technology
>  ASUS Turbo LAN Utility
>  The CPU is an i7-6850 and it is configured with 128GB of DDR4 RAM.
>  This machine has a number of Qemu/KVM virtual guests and is using a software 
> bridge to share the interface.
>  This did not happen with 17.10 and 4.13.0 kernel.  It is happening on 
> multiple machines here.
>  Here are the messages from dmesg:
>  1016198.957850] e1000e :00:19.0 eno1: Detected Hardware Unit Hang:
> TDH  
> TDT  <2d>
> next_to_use  <2d>
> next_to_clean
>   buffer_info[next_to_clean]:
> time_stamp   <13c8d0008>
> next_to_watch
> jiffies  <13c8d0880>
> next_to_watch.status <0>
>   MAC Status <80083>
>   PHY Status <796d>
>   PHY 1000BASE-T Status  <3c00>
>   PHY Extended Status<3000>
>   PCI Status <10>
>  [1016200.942072] e1000e :00:19.0 eno1: Detected Hardware Unit Hang:
> TDH  
> TDT  <2d>
> next_to_use  <2d>
> next_to_clean
>   buffer_info[next_to_clean]:
> time_stamp   <13c8d0008>
> next_to_watch
> jiffies  <13c8d1040>
> next_to_watch.status <0>
>   MAC Status <80083>
>   PHY Status <796d>
>   PHY 1000BASE-T Status  <3c00>
>   PHY Extended Status<3000>
>   PCI Status <10>
>  [1016202.413607] e1000e :00:19.0 eno1: Reset adapter unexpectedly
>  [1016202.413701] bridge0: port 1(eno1) entered disabled state
>  [1016202.413732] bridge0: topology change detected, propagating
>  [1016206.76] e1000e: eno1 NIC Link is Up 1000 Mbps Full Duplex, Flow 
> Control: Rx/Tx
>  [1016206.666708] bridge0: port 1(eno1) entered blocking state
>  [1016206.666712] bridge0: port 1(eno1) entered listening state
>  [1016216.750911] bridge0: port 1(eno1) entered learning state
>  [1016232.110291] bridge0: port 1(eno1) entered forwarding state
>  [1016232.110294] bridge0: topology change detected, sending tcn bpdu
>  [1017834.390579] cfg80211: Loading compiled-in X.509 certificates for 
> regulatory database
>  [1017834.390770] cfg80211: Loaded X.509 cert 'sforshee: 00b28ddf47aef9cea7'
>  [1017834.414792] platform regulatory.0: Direct firmware load for 
> regulatory.db failed with error -2
>  [1017834.414794] cfg80211: failed to load regulatory.db
>  If there is any other information I can provide to aid in resolution, please 
> contact me, nan...@eskimo.com.  Thank you!
>
>  ProblemType: Bug
>  DistroRelease: Ubuntu 18.04
>  Package: linux-image-4.15.0-15-lowlatency 4.15.0-15.16
>  ProcVersionSignature: Ubuntu 4.15.0-15.16-lowlatency 4.15.15
>  Uname: Linux 4.15.0-15-lowlatency x86_64
>  ApportVersion: 2.20.9-0ubuntu6
>  Architecture: amd64
>  AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/hwC1D3', 
> '/dev/snd/hwC1D2', '/dev/snd/hwC1D1', '/dev/snd/hwC1D0', '/dev/snd/pcmC1D9p', 
> '/dev/snd/pcmC1D8p', '/dev/snd/pcmC1D7p', '/dev/snd/pcmC1D3p', 
> '/dev/snd/controlC1', '/dev/snd/by-path', '/dev/snd/hwC0D0', 
> '/dev/snd/pcmC0D2c', '/dev/snd/pcmC0D1p', '/dev/snd/pcmC0D0c', 
> 

Re: [Bug 1766377] Re: Ethernet E1000 Controller Hangs

[Robert Dinse]

I gave up any hope it ever would be fixed, bought some NIC cards with a
different chipset, and moved on.

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  Eskimo North Linux Friendly Internet Access, Shell Accounts, and Hosting.
Knowledgeable human assistance, not telephone trees or script readers.
  See our web site: http://www.eskimo.com/ (206) 812-0051 or (800) 246-6874.

On Thu, 5 Sep 2019, Chris Puttick wrote:

> Date: Thu, 05 Sep 2019 08:35:29 -
> From: Chris Puttick 
> Reply-To: Bug 1766377 <1766...@bugs.launchpad.net>
> To: nan...@eskimo.com
> Subject: [Bug 1766377] Re: Ethernet E1000 Controller Hangs
> 
> We're seeing this bug consistently (although not consistent per se - the
> error does not occur immediately after boot, and doesn't immediately
> disconnect the server from the network; anything from 3 weeks to 3 hours
> before it starts, and a day or so after is starts before it gets
> permanently disconnected).
>
> # uname -a
> Linux  4.15.0-60-generic #67-Ubuntu SMP Thu Aug 22 16:55:30 UTC 
> 2019 x86_64 x86_64 x86_64 GNU/Linux
>
> Intel(R) Core(TM) i7-7700 CPU @ 3.60GHz
>
> Ubuntu 18.04.3 LTS
>
> Issue occurred on earlier 18.04 and kernel versions. Server was built as
> 18.04.1 and is a fairly minimal install acting as a virtual host with
> KVM/QEMU. It's not heavily loaded and doesn't have a huge amount of
> traffic. It's a co-located rental so we don't have a detailed spec, but
> if it's of interest more details are probably available from the
> provider.
>
> We have other servers with identical hardware from the same provider
> running 16.04 without any issue.
>
>
> ** Changed in: linux (Ubuntu Bionic)
>   Status: Expired => Confirmed
>
> -- 
> You received this bug notification because you are subscribed to the bug
> report.
> https://bugs.launchpad.net/bugs/1766377
>
> Title:
>  Ethernet E1000 Controller Hangs
>
> Status in linux package in Ubuntu:
>  Expired
> Status in linux source package in Bionic:
>  Confirmed
>
> Bug description:
>   With Bionic kernel 4.15.0-15 and 4.15.0-17 I am experiencing periodic 
> hanging of the LAN connection.  This is happening on an Asus X99-DELUX 
> motherboard, controller specifications:
>  Intel® I218V, 1 x Gigabit LAN Controller(s)
>  Intel® I211-AT, 1 x Gigabit LAN
>  Dual Gigabit LAN controllers- 802.3az Energy Efficient Ethernet (EEE) 
> appliance
>  Support Teaming Technology
>  ASUS Turbo LAN Utility
>  The CPU is an i7-6850 and it is configured with 128GB of DDR4 RAM.
>  This machine has a number of Qemu/KVM virtual guests and is using a software 
> bridge to share the interface.
>  This did not happen with 17.10 and 4.13.0 kernel.  It is happening on 
> multiple machines here.
>  Here are the messages from dmesg:
>  1016198.957850] e1000e :00:19.0 eno1: Detected Hardware Unit Hang:
> TDH  
> TDT  <2d>
> next_to_use  <2d>
> next_to_clean
>   buffer_info[next_to_clean]:
> time_stamp   <13c8d0008>
> next_to_watch
> jiffies  <13c8d0880>
> next_to_watch.status <0>
>   MAC Status <80083>
>   PHY Status <796d>
>   PHY 1000BASE-T Status  <3c00>
>   PHY Extended Status<3000>
>   PCI Status <10>
>  [1016200.942072] e1000e :00:19.0 eno1: Detected Hardware Unit Hang:
> TDH  
> TDT  <2d>
> next_to_use  <2d>
> next_to_clean
>   buffer_info[next_to_clean]:
> time_stamp   <13c8d0008>
> next_to_watch
> jiffies  <13c8d1040>
> next_to_watch.status <0>
>   MAC Status <80083>
>   PHY Status <796d>
>   PHY 1000BASE-T Status  <3c00>
>   PHY Extended Status<3000>
>   PCI Status <10>
>  [1016202.413607] e1000e :00:19.0 eno1: Reset adapter unexpectedly
>  [1016202.413701] bridge0: port 1(eno1) entered disabled state
>  [1016202.413732] bridge0: topology change detected, propagating
>  [1016206.76] e1000e: eno1 NIC Link is Up 1000 Mbps Full Duplex, Flow 
> Control: Rx/Tx
>  [1016206.666708] bridge0: port 1(eno1) entered blocking state
>  [1016206.666712] bridge0: port 1(eno1) entered listening state
>  [1016216.750911] bridge0: port 1(eno1) entered learning state
>  [1016232.110291] bridge0: port 1(eno1) entered forwarding state
>  [1016232.110294] bridge0: topology change detected, sending tcn bpdu
>  [1017834.390579] cfg80211: Loading compiled-in X.509 certificates for 
> 

Re: [Bug 1766377] Re: Ethernet E1000 Controller Hangs

[Robert Dinse]

I had a better fix, after becoming convinced Canonical was not going to
fix the drivers in my lifetime, I went and bought some non-Intel NICs.

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  Eskimo North Linux Friendly Internet Access, Shell Accounts, and Hosting.
Knowledgeable human assistance, not telephone trees or script readers.
  See our web site: http://www.eskimo.com/ (206) 812-0051 or (800) 246-6874.

On Wed, 24 Apr 2019, Halvor Lyche Strandvoll wrote:

> Date: Wed, 24 Apr 2019 07:08:36 -
> From: Halvor Lyche Strandvoll 
> Reply-To: Bug 1766377 <1766...@bugs.launchpad.net>
> To: nan...@eskimo.com
> Subject: [Bug 1766377] Re: Ethernet E1000 Controller Hangs
> 
> I made a workaround for this. That is basically just disable tso.
> This fix persists across boots.
>
> Copy the following script and save it as /etc/systemd/system/disable-
> tso@enp0s25.service
>
> ##
>
> [Unit]
> Description=Disable TSO for %i
> BindsTo=sys-subsystem-net-devices-%i.device
> After=sys-subsystem-net-devices-%i.device
>
> [Service]
> Type=oneshot
> ExecStart=/sbin/ethtool -K %i tso off
>
> [Install]
> WantedBy=sys-subsystem-net-devices-%i.device
>
> ##
>
> Run "systemctl enable disable-tso@enp0s25" with your interface name
> instead of "enp0s25" that is what mine is named.
>
> If you have more problematic interfaces just enable service for those as
> well.
>
> -- 
> You received this bug notification because you are subscribed to the bug
> report.
> https://bugs.launchpad.net/bugs/1766377
>
> Title:
>  Ethernet E1000 Controller Hangs
>
> Status in linux package in Ubuntu:
>  Expired
> Status in linux source package in Bionic:
>  Expired
>
> Bug description:
>   With Bionic kernel 4.15.0-15 and 4.15.0-17 I am experiencing periodic 
> hanging of the LAN connection.  This is happening on an Asus X99-DELUX 
> motherboard, controller specifications:
>  Intel® I218V, 1 x Gigabit LAN Controller(s)
>  Intel® I211-AT, 1 x Gigabit LAN
>  Dual Gigabit LAN controllers- 802.3az Energy Efficient Ethernet (EEE) 
> appliance
>  Support Teaming Technology
>  ASUS Turbo LAN Utility
>  The CPU is an i7-6850 and it is configured with 128GB of DDR4 RAM.
>  This machine has a number of Qemu/KVM virtual guests and is using a software 
> bridge to share the interface.
>  This did not happen with 17.10 and 4.13.0 kernel.  It is happening on 
> multiple machines here.
>  Here are the messages from dmesg:
>  1016198.957850] e1000e :00:19.0 eno1: Detected Hardware Unit Hang:
> TDH  
> TDT  <2d>
> next_to_use  <2d>
> next_to_clean
>   buffer_info[next_to_clean]:
> time_stamp   <13c8d0008>
> next_to_watch
> jiffies  <13c8d0880>
> next_to_watch.status <0>
>   MAC Status <80083>
>   PHY Status <796d>
>   PHY 1000BASE-T Status  <3c00>
>   PHY Extended Status<3000>
>   PCI Status <10>
>  [1016200.942072] e1000e :00:19.0 eno1: Detected Hardware Unit Hang:
> TDH  
> TDT  <2d>
> next_to_use  <2d>
> next_to_clean
>   buffer_info[next_to_clean]:
> time_stamp   <13c8d0008>
> next_to_watch
> jiffies  <13c8d1040>
> next_to_watch.status <0>
>   MAC Status <80083>
>   PHY Status <796d>
>   PHY 1000BASE-T Status  <3c00>
>   PHY Extended Status<3000>
>   PCI Status <10>
>  [1016202.413607] e1000e :00:19.0 eno1: Reset adapter unexpectedly
>  [1016202.413701] bridge0: port 1(eno1) entered disabled state
>  [1016202.413732] bridge0: topology change detected, propagating
>  [1016206.76] e1000e: eno1 NIC Link is Up 1000 Mbps Full Duplex, Flow 
> Control: Rx/Tx
>  [1016206.666708] bridge0: port 1(eno1) entered blocking state
>  [1016206.666712] bridge0: port 1(eno1) entered listening state
>  [1016216.750911] bridge0: port 1(eno1) entered learning state
>  [1016232.110291] bridge0: port 1(eno1) entered forwarding state
>  [1016232.110294] bridge0: topology change detected, sending tcn bpdu
>  [1017834.390579] cfg80211: Loading compiled-in X.509 certificates for 
> regulatory database
>  [1017834.390770] cfg80211: Loaded X.509 cert 'sforshee: 00b28ddf47aef9cea7'
>  [1017834.414792] platform regulatory.0: Direct firmware load for 
> regulatory.db failed with error -2
>  [1017834.414794] 

Re: [Bug 1766377] Re: Ethernet E1000 Controller Hangs

[Robert Dinse]

I gave up on it every being fixed and bought some broadcom interfaces
for my machines.

-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-
  Eskimo North Linux Friendly Internet Access, Shell Accounts, and Hosting.
Knowledgeable human assistance, not telephone trees or script readers.
  See our web site: http://www.eskimo.com/ (206) 812-0051 or (800) 246-6874.

On Fri, 23 Nov 2018, Emlyn Bolton wrote:

> Date: Fri, 23 Nov 2018 17:37:46 -
> From: Emlyn Bolton <1766...@bugs.launchpad.net>
> To: nan...@eskimo.com
> Subject: [Bug 1766377] Re: Ethernet E1000 Controller Hangs
> 
> I'm still seeing this issue on the 4.15.0-39-generic kernel:
>
> [467738.375137] e1000 :05:01.0 enp5s1f0: Detected Tx Unit Hang
>  Tx Queue <0>
>  TDH  <44>
>  TDT  <44>
>  next_to_use  <44>
>  next_to_clean<25>
>buffer_info[next_to_clean]
>  time_stamp   <106f70e55>
>  next_to_watch<26>
>  jiffies  <106f70ff8>
>  next_to_watch.status <0>
> [467740.391180] e1000 :05:01.0 enp5s1f0: Detected Tx Unit Hang
>  Tx Queue <0>
>  TDH  <44>
>  TDT  <44>
>  next_to_use  <44>
>  next_to_clean<25>
>buffer_info[next_to_clean]
>  time_stamp   <106f70e55>
>  next_to_watch<26>
>  jiffies  <106f711f0>
>  next_to_watch.status <0>
> [467742.407313] e1000 :05:01.0 enp5s1f0: Detected Tx Unit Hang
>  Tx Queue <0>
>  TDH  <44>
>  TDT  <44>
>  next_to_use  <44>
>  next_to_clean<25>
>buffer_info[next_to_clean]
>  time_stamp   <106f70e55>
>  next_to_watch<26>
>  jiffies  <106f713e8>
>  next_to_watch.status <0>
> [467744.423373] e1000 :05:01.0 enp5s1f0: Detected Tx Unit Hang
>  Tx Queue <0>
>  TDH  <44>
>  TDT  <44>
>  next_to_use  <44>
>  next_to_clean<25>
>buffer_info[next_to_clean]
>  time_stamp   <106f70e55>
>  next_to_watch<26>
>  jiffies  <106f715e0>
>  next_to_watch.status <0>
> [467745.319133] e1000 :05:01.0 enp5s1f0: Reset adapter
>
> 05:01.0 Ethernet controller: Intel Corporation 82546EB Gigabit Ethernet 
> Controller (Copper) (rev 03)
>   Subsystem: Intel Corporation PRO/1000 MT Dual Port Server Adapter
>   Flags: bus master, 66MHz, medium devsel, latency 32, IRQ 16
>   Memory at f722 (64-bit, non-prefetchable) [size=128K]
>   Memory at f71c (64-bit, non-prefetchable) [size=256K]
>   I/O ports at d040 [size=64]
>   Expansion ROM at f718 [disabled] [size=256K]
>   Capabilities: [dc] Power Management version 2
>   Capabilities: [e4] PCI-X non-bridge device
>   Capabilities: [f0] MSI: Enable- Count=1/1 Maskable- 64bit+
>   Kernel driver in use: e1000
>   Kernel modules: e1000
>
> 05:01.1 Ethernet controller: Intel Corporation 82546EB Gigabit Ethernet 
> Controller (Copper) (rev 03)
>   Subsystem: Intel Corporation PRO/1000 MT Dual Port Server Adapter
>   Flags: bus master, 66MHz, medium devsel, latency 32, IRQ 17
>   Memory at f720 (64-bit, non-prefetchable) [size=128K]
>   Memory at f714 (64-bit, non-prefetchable) [size=256K]
>   I/O ports at d000 [size=64]
>   Expansion ROM at f710 [disabled] [size=256K]
>   Capabilities: [dc] Power Management version 2
>   Capabilities: [e4] PCI-X non-bridge device
>   Capabilities: [f0] MSI: Enable- Count=1/1 Maskable- 64bit+
>   Kernel driver in use: e1000
>   Kernel modules: e1000
>
>
> This is a dual-port adapter, but I also saw the issue with the on-board i217 
> chip too.
>
> -- 
> You received this bug notification because you are subscribed to the bug
> report.
> https://bugs.launchpad.net/bugs/1766377
>
> Title:
>  Ethernet E1000 Controller Hangs
>
> Status in linux package in Ubuntu:
>  Expired
> Status in linux source package in Bionic:
>  Expired
>
> Bug description:
>   With Bionic kernel 4.15.0-15 and 4.15.0-17 I am experiencing periodic 
> hanging of the LAN connection.  This is happening on an Asus X99-DELUX 
> motherboard, controller specifications:
>  Intel® I218V, 1 x Gigabit LAN Controller(s)
>  Intel® I211-AT, 1 x Gigabit LAN
>  Dual Gigabit LAN 

Re: [Bug 1766377] Re: Ethernet E1000 Controller Hangs

[Robert Dinse]

4.14.0 final crashed hard after running 17 hours.  Not only was the
ethernet not-responsive, neither was the console, not even the magic
sys-req key.  I had to power cycle the machine to get it unhung.  Then
I booted 4.14.0rc1 and it immediately exploded however I had set a 20 second
time out and the machine self booted back into 4.15.0-21 and I turned hardware
offloading back off.

  I can not continue testing this on production machines and the one Intel
machine I have with that interface chip is currently broken.  I'll work on
getting that working and setup a web server on it and use some test software
to put a load on it.

  One thing I found digging in github is that there has been only one
commit against the E1000 driver in the last three years and that was on
February 13th, so might be worth looking at.

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On Fri, 11 May 2018, Joseph Salisbury wrote:

> Date: Fri, 11 May 2018 12:31:14 -
> From: Joseph Salisbury 
> Reply-To: Bug 1766377 <1766...@bugs.launchpad.net>
> To: nan...@eskimo.com
> Subject: [Bug 1766377] Re: Ethernet E1000 Controller Hangs
> 
> Thanks for testing.  We should work backwards towards 4.13 now.  Can you
> test the following:
>
> 4.14-rc1: http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.14-rc1/
> 4.14-rc4: http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.14-rc4/
> 4.14-rc7: http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.14-rc7/
>
>
> You don't have to test every kernel, just up until the kernel that first has 
> this bug.
>
> Thanks in advance!
>
> -- 
> You received this bug notification because you are subscribed to the bug
> report.
> https://bugs.launchpad.net/bugs/1766377
>
> Title:
>  Ethernet E1000 Controller Hangs
>
> Status in linux package in Ubuntu:
>  Incomplete
> Status in linux source package in Bionic:
>  Incomplete
>
> Bug description:
>   With Bionic kernel 4.15.0-15 and 4.15.0-17 I am experiencing periodic 
> hanging of the LAN connection.  This is happening on an Asus X99-DELUX 
> motherboard, controller specifications:
>  Intel® I218V, 1 x Gigabit LAN Controller(s)
>  Intel® I211-AT, 1 x Gigabit LAN
>  Dual Gigabit LAN controllers- 802.3az Energy Efficient Ethernet (EEE) 
> appliance
>  Support Teaming Technology
>  ASUS Turbo LAN Utility
>  The CPU is an i7-6850 and it is configured with 128GB of DDR4 RAM.
>  This machine has a number of Qemu/KVM virtual guests and is using a software 
> bridge to share the interface.
>  This did not happen with 17.10 and 4.13.0 kernel.  It is happening on 
> multiple machines here.
>  Here are the messages from dmesg:
>  1016198.957850] e1000e :00:19.0 eno1: Detected Hardware Unit Hang:
> TDH  
> TDT  <2d>
> next_to_use  <2d>
> next_to_clean
>   buffer_info[next_to_clean]:
> time_stamp   <13c8d0008>
> next_to_watch
> jiffies  <13c8d0880>
> next_to_watch.status <0>
>   MAC Status <80083>
>   PHY Status <796d>
>   PHY 1000BASE-T Status  <3c00>
>   PHY Extended Status<3000>
>   PCI Status <10>
>  [1016200.942072] e1000e :00:19.0 eno1: Detected Hardware Unit Hang:
> TDH  
> TDT  <2d>
> next_to_use  <2d>
> next_to_clean
>   buffer_info[next_to_clean]:
> time_stamp   <13c8d0008>
> next_to_watch
> jiffies  <13c8d1040>
> next_to_watch.status <0>
>   MAC Status <80083>
>   PHY Status <796d>
>   PHY 1000BASE-T Status  <3c00>
>   PHY Extended Status<3000>
>   PCI Status <10>
>  [1016202.413607] e1000e :00:19.0 eno1: Reset adapter unexpectedly
>  [1016202.413701] bridge0: port 1(eno1) entered disabled state
>  [1016202.413732] bridge0: topology change detected, propagating
>  [1016206.76] e1000e: eno1 NIC Link is Up 1000 Mbps Full Duplex, Flow 
> Control: Rx/Tx
>  [1016206.666708] bridge0: port 1(eno1) entered blocking state
>  [1016206.666712] bridge0: port 1(eno1) entered listening state
>  [1016216.750911] bridge0: port 1(eno1) entered learning state
>  [1016232.110291] bridge0: port 1(eno1) entered forwarding state
>  [1016232.110294] 

Re: [Bug 1766377] Re: Ethernet E1000 Controller Hangs

[Robert Dinse]

4.14 has the problem.  Do I need to try the 4.15rc0 kernel also since
4.14 isn't well?

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Knowledgeable human assistance, not telephone trees or script readers.
  See our web site: http://www.eskimo.com/ (206) 812-0051 or (800) 246-6874.

On Thu, 10 May 2018, Joseph Salisbury wrote:

> Date: Thu, 10 May 2018 19:26:46 -
> From: Joseph Salisbury 
> Reply-To: Bug 1766377 <1766...@bugs.launchpad.net>
> To: nan...@eskimo.com
> Subject: [Bug 1766377] Re: Ethernet E1000 Controller Hangs
> 
> Could you test the following two upstream kernels, so we can narrow down
> the last good and first bad further:
>
> v4.14 Final: http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.14/
> v4.15-rc1: http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.15-rc1/
>
> -- 
> You received this bug notification because you are subscribed to the bug
> report.
> https://bugs.launchpad.net/bugs/1766377
>
> Title:
>  Ethernet E1000 Controller Hangs
>
> Status in linux package in Ubuntu:
>  Incomplete
> Status in linux source package in Bionic:
>  Incomplete
>
> Bug description:
>   With Bionic kernel 4.15.0-15 and 4.15.0-17 I am experiencing periodic 
> hanging of the LAN connection.  This is happening on an Asus X99-DELUX 
> motherboard, controller specifications:
>  Intel® I218V, 1 x Gigabit LAN Controller(s)
>  Intel® I211-AT, 1 x Gigabit LAN
>  Dual Gigabit LAN controllers- 802.3az Energy Efficient Ethernet (EEE) 
> appliance
>  Support Teaming Technology
>  ASUS Turbo LAN Utility
>  The CPU is an i7-6850 and it is configured with 128GB of DDR4 RAM.
>  This machine has a number of Qemu/KVM virtual guests and is using a software 
> bridge to share the interface.
>  This did not happen with 17.10 and 4.13.0 kernel.  It is happening on 
> multiple machines here.
>  Here are the messages from dmesg:
>  1016198.957850] e1000e :00:19.0 eno1: Detected Hardware Unit Hang:
> TDH  
> TDT  <2d>
> next_to_use  <2d>
> next_to_clean
>   buffer_info[next_to_clean]:
> time_stamp   <13c8d0008>
> next_to_watch
> jiffies  <13c8d0880>
> next_to_watch.status <0>
>   MAC Status <80083>
>   PHY Status <796d>
>   PHY 1000BASE-T Status  <3c00>
>   PHY Extended Status<3000>
>   PCI Status <10>
>  [1016200.942072] e1000e :00:19.0 eno1: Detected Hardware Unit Hang:
> TDH  
> TDT  <2d>
> next_to_use  <2d>
> next_to_clean
>   buffer_info[next_to_clean]:
> time_stamp   <13c8d0008>
> next_to_watch
> jiffies  <13c8d1040>
> next_to_watch.status <0>
>   MAC Status <80083>
>   PHY Status <796d>
>   PHY 1000BASE-T Status  <3c00>
>   PHY Extended Status<3000>
>   PCI Status <10>
>  [1016202.413607] e1000e :00:19.0 eno1: Reset adapter unexpectedly
>  [1016202.413701] bridge0: port 1(eno1) entered disabled state
>  [1016202.413732] bridge0: topology change detected, propagating
>  [1016206.76] e1000e: eno1 NIC Link is Up 1000 Mbps Full Duplex, Flow 
> Control: Rx/Tx
>  [1016206.666708] bridge0: port 1(eno1) entered blocking state
>  [1016206.666712] bridge0: port 1(eno1) entered listening state
>  [1016216.750911] bridge0: port 1(eno1) entered learning state
>  [1016232.110291] bridge0: port 1(eno1) entered forwarding state
>  [1016232.110294] bridge0: topology change detected, sending tcn bpdu
>  [1017834.390579] cfg80211: Loading compiled-in X.509 certificates for 
> regulatory database
>  [1017834.390770] cfg80211: Loaded X.509 cert 'sforshee: 00b28ddf47aef9cea7'
>  [1017834.414792] platform regulatory.0: Direct firmware load for 
> regulatory.db failed with error -2
>  [1017834.414794] cfg80211: failed to load regulatory.db
>  If there is any other information I can provide to aid in resolution, please 
> contact me, nan...@eskimo.com.  Thank you!
>
>  ProblemType: Bug
>  DistroRelease: Ubuntu 18.04
>  Package: linux-image-4.15.0-15-lowlatency 4.15.0-15.16
>  ProcVersionSignature: Ubuntu 4.15.0-15.16-lowlatency 4.15.15
>  Uname: Linux 4.15.0-15-lowlatency x86_64
>  ApportVersion: 2.20.9-0ubuntu6
>  Architecture: amd64
>  AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/hwC1D3', 
> '/dev/snd/hwC1D2', '/dev/snd/hwC1D1', 

Re: [Bug 1766377] Re: Ethernet E1000 Controller Hangs

[Robert Dinse]

I booted the most problematic machine, that's the i7-6850k machine,
probably because it has the most traffic, on the 4.14.0 kernel, so far so
good.

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  Eskimo North Linux Friendly Internet Access, Shell Accounts, and Hosting.
Knowledgeable human assistance, not telephone trees or script readers.
  See our web site: http://www.eskimo.com/ (206) 812-0051 or (800) 246-6874.

On Thu, 10 May 2018, Joseph Salisbury wrote:

> Date: Thu, 10 May 2018 19:26:46 -
> From: Joseph Salisbury 
> Reply-To: Bug 1766377 <1766...@bugs.launchpad.net>
> To: nan...@eskimo.com
> Subject: [Bug 1766377] Re: Ethernet E1000 Controller Hangs
> 
> Could you test the following two upstream kernels, so we can narrow down
> the last good and first bad further:
>
> v4.14 Final: http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.14/
> v4.15-rc1: http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.15-rc1/
>
> -- 
> You received this bug notification because you are subscribed to the bug
> report.
> https://bugs.launchpad.net/bugs/1766377
>
> Title:
>  Ethernet E1000 Controller Hangs
>
> Status in linux package in Ubuntu:
>  Incomplete
> Status in linux source package in Bionic:
>  Incomplete
>
> Bug description:
>   With Bionic kernel 4.15.0-15 and 4.15.0-17 I am experiencing periodic 
> hanging of the LAN connection.  This is happening on an Asus X99-DELUX 
> motherboard, controller specifications:
>  Intel® I218V, 1 x Gigabit LAN Controller(s)
>  Intel® I211-AT, 1 x Gigabit LAN
>  Dual Gigabit LAN controllers- 802.3az Energy Efficient Ethernet (EEE) 
> appliance
>  Support Teaming Technology
>  ASUS Turbo LAN Utility
>  The CPU is an i7-6850 and it is configured with 128GB of DDR4 RAM.
>  This machine has a number of Qemu/KVM virtual guests and is using a software 
> bridge to share the interface.
>  This did not happen with 17.10 and 4.13.0 kernel.  It is happening on 
> multiple machines here.
>  Here are the messages from dmesg:
>  1016198.957850] e1000e :00:19.0 eno1: Detected Hardware Unit Hang:
> TDH  
> TDT  <2d>
> next_to_use  <2d>
> next_to_clean
>   buffer_info[next_to_clean]:
> time_stamp   <13c8d0008>
> next_to_watch
> jiffies  <13c8d0880>
> next_to_watch.status <0>
>   MAC Status <80083>
>   PHY Status <796d>
>   PHY 1000BASE-T Status  <3c00>
>   PHY Extended Status<3000>
>   PCI Status <10>
>  [1016200.942072] e1000e :00:19.0 eno1: Detected Hardware Unit Hang:
> TDH  
> TDT  <2d>
> next_to_use  <2d>
> next_to_clean
>   buffer_info[next_to_clean]:
> time_stamp   <13c8d0008>
> next_to_watch
> jiffies  <13c8d1040>
> next_to_watch.status <0>
>   MAC Status <80083>
>   PHY Status <796d>
>   PHY 1000BASE-T Status  <3c00>
>   PHY Extended Status<3000>
>   PCI Status <10>
>  [1016202.413607] e1000e :00:19.0 eno1: Reset adapter unexpectedly
>  [1016202.413701] bridge0: port 1(eno1) entered disabled state
>  [1016202.413732] bridge0: topology change detected, propagating
>  [1016206.76] e1000e: eno1 NIC Link is Up 1000 Mbps Full Duplex, Flow 
> Control: Rx/Tx
>  [1016206.666708] bridge0: port 1(eno1) entered blocking state
>  [1016206.666712] bridge0: port 1(eno1) entered listening state
>  [1016216.750911] bridge0: port 1(eno1) entered learning state
>  [1016232.110291] bridge0: port 1(eno1) entered forwarding state
>  [1016232.110294] bridge0: topology change detected, sending tcn bpdu
>  [1017834.390579] cfg80211: Loading compiled-in X.509 certificates for 
> regulatory database
>  [1017834.390770] cfg80211: Loaded X.509 cert 'sforshee: 00b28ddf47aef9cea7'
>  [1017834.414792] platform regulatory.0: Direct firmware load for 
> regulatory.db failed with error -2
>  [1017834.414794] cfg80211: failed to load regulatory.db
>  If there is any other information I can provide to aid in resolution, please 
> contact me, nan...@eskimo.com.  Thank you!
>
>  ProblemType: Bug
>  DistroRelease: Ubuntu 18.04
>  Package: linux-image-4.15.0-15-lowlatency 4.15.0-15.16
>  ProcVersionSignature: Ubuntu 4.15.0-15.16-lowlatency 4.15.15
>  Uname: Linux 4.15.0-15-lowlatency x86_64
>  ApportVersion: 2.20.9-0ubuntu6
>  Architecture: amd64
>  AudioDevicesInUse: Error: command ['fuser', '-v', 

Re: [Bug 1766377] Re: Ethernet E1000 Controller Hangs

[Robert Dinse]

I did not see this behavior with 4.13.0 and did with 4.15.0.

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  Eskimo North Linux Friendly Internet Access, Shell Accounts, and Hosting.
Knowledgeable human assistance, not telephone trees or script readers.
  See our web site: http://www.eskimo.com/ (206) 812-0051 or (800) 246-6874.

On Thu, 10 May 2018, Joseph Salisbury wrote:

> Date: Thu, 10 May 2018 17:25:18 -
> From: Joseph Salisbury 
> Reply-To: Bug 1766377 <1766...@bugs.launchpad.net>
> To: nan...@eskimo.com
> Subject: [Bug 1766377] Re: Ethernet E1000 Controller Hangs
> 
> We could perform a kernel bisect to identify the commit that introduced
> this regression.  To perform a bisect, we need to identify the last
> kernel that did not have the bug and the first kernel version that did.
>
> Do you recall the last kernel that didn't exhibit the bug?  If not,
> would you be able to test some kernels to narrow it down?  I could post
> a link to the kernels to test.
>
> -- 
> You received this bug notification because you are subscribed to the bug
> report.
> https://bugs.launchpad.net/bugs/1766377
>
> Title:
>  Ethernet E1000 Controller Hangs
>
> Status in linux package in Ubuntu:
>  Incomplete
> Status in linux source package in Bionic:
>  Incomplete
>
> Bug description:
>   With Bionic kernel 4.15.0-15 and 4.15.0-17 I am experiencing periodic 
> hanging of the LAN connection.  This is happening on an Asus X99-DELUX 
> motherboard, controller specifications:
>  Intel® I218V, 1 x Gigabit LAN Controller(s)
>  Intel® I211-AT, 1 x Gigabit LAN
>  Dual Gigabit LAN controllers- 802.3az Energy Efficient Ethernet (EEE) 
> appliance
>  Support Teaming Technology
>  ASUS Turbo LAN Utility
>  The CPU is an i7-6850 and it is configured with 128GB of DDR4 RAM.
>  This machine has a number of Qemu/KVM virtual guests and is using a software 
> bridge to share the interface.
>  This did not happen with 17.10 and 4.13.0 kernel.  It is happening on 
> multiple machines here.
>  Here are the messages from dmesg:
>  1016198.957850] e1000e :00:19.0 eno1: Detected Hardware Unit Hang:
> TDH  
> TDT  <2d>
> next_to_use  <2d>
> next_to_clean
>   buffer_info[next_to_clean]:
> time_stamp   <13c8d0008>
> next_to_watch
> jiffies  <13c8d0880>
> next_to_watch.status <0>
>   MAC Status <80083>
>   PHY Status <796d>
>   PHY 1000BASE-T Status  <3c00>
>   PHY Extended Status<3000>
>   PCI Status <10>
>  [1016200.942072] e1000e :00:19.0 eno1: Detected Hardware Unit Hang:
> TDH  
> TDT  <2d>
> next_to_use  <2d>
> next_to_clean
>   buffer_info[next_to_clean]:
> time_stamp   <13c8d0008>
> next_to_watch
> jiffies  <13c8d1040>
> next_to_watch.status <0>
>   MAC Status <80083>
>   PHY Status <796d>
>   PHY 1000BASE-T Status  <3c00>
>   PHY Extended Status<3000>
>   PCI Status <10>
>  [1016202.413607] e1000e :00:19.0 eno1: Reset adapter unexpectedly
>  [1016202.413701] bridge0: port 1(eno1) entered disabled state
>  [1016202.413732] bridge0: topology change detected, propagating
>  [1016206.76] e1000e: eno1 NIC Link is Up 1000 Mbps Full Duplex, Flow 
> Control: Rx/Tx
>  [1016206.666708] bridge0: port 1(eno1) entered blocking state
>  [1016206.666712] bridge0: port 1(eno1) entered listening state
>  [1016216.750911] bridge0: port 1(eno1) entered learning state
>  [1016232.110291] bridge0: port 1(eno1) entered forwarding state
>  [1016232.110294] bridge0: topology change detected, sending tcn bpdu
>  [1017834.390579] cfg80211: Loading compiled-in X.509 certificates for 
> regulatory database
>  [1017834.390770] cfg80211: Loaded X.509 cert 'sforshee: 00b28ddf47aef9cea7'
>  [1017834.414792] platform regulatory.0: Direct firmware load for 
> regulatory.db failed with error -2
>  [1017834.414794] cfg80211: failed to load regulatory.db
>  If there is any other information I can provide to aid in resolution, please 
> contact me, nan...@eskimo.com.  Thank you!
>
>  ProblemType: Bug
>  DistroRelease: Ubuntu 18.04
>  Package: linux-image-4.15.0-15-lowlatency 4.15.0-15.16
>  ProcVersionSignature: Ubuntu 4.15.0-15.16-lowlatency 4.15.15
>  Uname: Linux 4.15.0-15-lowlatency x86_64
>  ApportVersion: 2.20.9-0ubuntu6
>  Architecture: amd64
>  

Re: [Bug 1766377] Re: Ethernet E1000 Controller Hangs

[Robert Dinse]

Just to make sure you got the latest, the 4.17.x kernel did not work well
enoguh to leave it running, it broke kernel-nfs-server among other things.

  I am pressenting running 4.15.0-21 and with this kernel I would still
get these hangs except that I discovered disabling certain hardware offload
functions stops it, so presently in my /etc/rc.local file on the affected
servers I have: /sbin/ethtool -K eno1 gso off gro off tso off

  With this in place no hangs, slight performance penalty but no
hangs.

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  Eskimo North Linux Friendly Internet Access, Shell Accounts, and Hosting.
Knowledgeable human assistance, not telephone trees or script readers.
  See our web site: http://www.eskimo.com/ (206) 812-0051 or (800) 246-6874.

On Mon, 7 May 2018, Joseph Salisbury wrote:

> Date: Mon, 07 May 2018 18:26:12 -
> From: Joseph Salisbury 
> Reply-To: Bug 1766377 <1766...@bugs.launchpad.net>
> To: nan...@eskimo.com
> Subject: [Bug 1766377] Re: Ethernet E1000 Controller Hangs
> 
> ** Tags removed: kernel-key
> ** Tags added: kernel-da-key
>
> -- 
> You received this bug notification because you are subscribed to the bug
> report.
> https://bugs.launchpad.net/bugs/1766377
>
> Title:
>  Ethernet E1000 Controller Hangs
>
> Status in linux package in Ubuntu:
>  Incomplete
> Status in linux source package in Bionic:
>  Incomplete
>
> Bug description:
>   With Bionic kernel 4.15.0-15 and 4.15.0-17 I am experiencing periodic 
> hanging of the LAN connection.  This is happening on an Asus X99-DELUX 
> motherboard, controller specifications:
>  Intel® I218V, 1 x Gigabit LAN Controller(s)
>  Intel® I211-AT, 1 x Gigabit LAN
>  Dual Gigabit LAN controllers- 802.3az Energy Efficient Ethernet (EEE) 
> appliance
>  Support Teaming Technology
>  ASUS Turbo LAN Utility
>  The CPU is an i7-6850 and it is configured with 128GB of DDR4 RAM.
>  This machine has a number of Qemu/KVM virtual guests and is using a software 
> bridge to share the interface.
>  This did not happen with 17.10 and 4.13.0 kernel.  It is happening on 
> multiple machines here.
>  Here are the messages from dmesg:
>  1016198.957850] e1000e :00:19.0 eno1: Detected Hardware Unit Hang:
> TDH  
> TDT  <2d>
> next_to_use  <2d>
> next_to_clean
>   buffer_info[next_to_clean]:
> time_stamp   <13c8d0008>
> next_to_watch
> jiffies  <13c8d0880>
> next_to_watch.status <0>
>   MAC Status <80083>
>   PHY Status <796d>
>   PHY 1000BASE-T Status  <3c00>
>   PHY Extended Status<3000>
>   PCI Status <10>
>  [1016200.942072] e1000e :00:19.0 eno1: Detected Hardware Unit Hang:
> TDH  
> TDT  <2d>
> next_to_use  <2d>
> next_to_clean
>   buffer_info[next_to_clean]:
> time_stamp   <13c8d0008>
> next_to_watch
> jiffies  <13c8d1040>
> next_to_watch.status <0>
>   MAC Status <80083>
>   PHY Status <796d>
>   PHY 1000BASE-T Status  <3c00>
>   PHY Extended Status<3000>
>   PCI Status <10>
>  [1016202.413607] e1000e :00:19.0 eno1: Reset adapter unexpectedly
>  [1016202.413701] bridge0: port 1(eno1) entered disabled state
>  [1016202.413732] bridge0: topology change detected, propagating
>  [1016206.76] e1000e: eno1 NIC Link is Up 1000 Mbps Full Duplex, Flow 
> Control: Rx/Tx
>  [1016206.666708] bridge0: port 1(eno1) entered blocking state
>  [1016206.666712] bridge0: port 1(eno1) entered listening state
>  [1016216.750911] bridge0: port 1(eno1) entered learning state
>  [1016232.110291] bridge0: port 1(eno1) entered forwarding state
>  [1016232.110294] bridge0: topology change detected, sending tcn bpdu
>  [1017834.390579] cfg80211: Loading compiled-in X.509 certificates for 
> regulatory database
>  [1017834.390770] cfg80211: Loaded X.509 cert 'sforshee: 00b28ddf47aef9cea7'
>  [1017834.414792] platform regulatory.0: Direct firmware load for 
> regulatory.db failed with error -2
>  [1017834.414794] cfg80211: failed to load regulatory.db
>  If there is any other information I can provide to aid in resolution, please 
> contact me, nan...@eskimo.com.  Thank you!
>
>  ProblemType: Bug
>  DistroRelease: Ubuntu 18.04
>  Package: linux-image-4.15.0-15-lowlatency 4.15.0-15.16
>  ProcVersionSignature: Ubuntu 

Re: [Bug 1766377] Re: Ethernet E1000 Controller Hangs

[Robert Dinse]

This kernel did make it so I could not reproduce it on demand using
ethtool -G however it broke so many other things I could not leave it running
to see if it fixed spontaneous hangs.

  Strangely it broke nfs-kernel-server on the i7-6850k machine but not the
i7-6700k machine.  I did much stare and compare to make sure they were
configured the same.  This forced me to back out this kernel.

  But in addition to NFS, the nouveau drivers needed on the i7-6850k
machine had some bug that would pixelize much of the screen in a semi-random
fashion.  Also for whatever reason x2goserver would not work properly with
that kernel.

  On the i7-6700k machines, one I had to restart lightdm several times to
get it to actually start, it did not start on boot up.  On another I was unable
to get lightdm to start at all and only console graphics worked, and for some
reason they were in yellow instead of white.  The i7-6700k machines are using
the internal graphics of the i7-6700k processor clocked real slow to minimize
the impact on heat budget.

  So on the kernel-developers's PPA I saw another test kernel, 4.15.0-21,
I installed it, it also made ethtool -G not induce Ethernet hang but on the 
i7-6850 it's already hung once spontaneously:

[ 4112.809034] e1000e :00:19.0 eno1: Detected Hardware Unit Hang:
  TDH  <4f>
  TDT  <6f>
  next_to_use  <6f>
  next_to_clean<4e>
buffer_info[next_to_clean]:
  time_stamp   <1003a2221>
  next_to_watch<4f>
  jiffies  <1003a2d80>
  next_to_watch.status <0>
MAC Status <80083>
PHY Status <796d>
PHY 1000BASE-T Status  <7c00>
PHY Extended Status<3000>
PCI Status <10>
[ 4114.793198] e1000e :00:19.0 eno1: Detected Hardware Unit Hang:
  TDH  <4f>
  TDT  <6f>
  next_to_use  <6f>
  next_to_clean<4e>
buffer_info[next_to_clean]:
  time_stamp   <1003a2221>
  next_to_watch<4f>
  jiffies  <1003a3540>
  next_to_watch.status <0>
MAC Status <80083>
PHY Status <796d>
PHY 1000BASE-T Status  <7c00>
PHY Extended Status<3000>
PCI Status <10>
[ 4116.008748] [ cut here ]
[ 4116.008750] NETDEV WATCHDOG: eno1 (e1000e): transmit queue 0 timed out
[ 4116.008765] WARNING: CPU: 8 PID: 59 at 
/build/linux-QLn4bB/linux-4.15.0/net/s
ched/sch_generic.c:323 dev_watchdog+0x21d/0x230
[ 4116.008765] Modules linked in: tcp_diag inet_diag vhost_net vhost tap 
xt_CHEC
KSUM iptable_mangle ipt_MASQUERADE nf_nat_masquerade_ipv4 iptable_nat 
nf_nat_ipv
4 nf_nat nf_conntrack_ipv4 nf_defrag_ipv4 xt_conntrack nf_conntrack ipt_REJECT 
n
f_reject_ipv4 xt_tcpudp ebtable_filter ebtables ip6table_filter ip6_tables 
iptab
le_filter devlink rpcsec_gss_krb5 nfsv4 nfs fscache msr bridge stp llc 
binfmt_mi
sc nls_iso8859_1 quota_v2 quota_tree intel_rapl x86_pkg_temp_thermal 
intel_power
clamp kvm_intel kvm irqbypass crct10dif_pclmul crc32_pclmul ghash_clmulni_intel
pcbc aesni_intel snd_hda_codec_hdmi aes_x86_64 input_leds crypto_simd 
glue_helper cryptd snd_hda_codec_realtek snd_hda_codec_generic snd_seq_midi 
snd_seq_midi_e
vent snd_hda_intel snd_hda_codec snd_hda_core snd_rawmidi snd_hwdep snd_seq 
snd_
pcm snd_seq_device
[ 4116.008792]  snd_timer intel_cstate eeepc_wmi snd asus_wmi sparse_keymap 
wmi_
bmof lpc_ich intel_rapl_perf intel_wmi_thunderbolt shpchp soundcore mei_me mei 
m
ac_hid sch_fq_codel ib_iser rdma_cm iw_cm ib_cm ib_core iscsi_tcp libiscsi_tcp 
l
ibiscsi scsi_transport_iscsi nct6775 hwmon_vid coretemp parport_pc ppdev nfsd 
au
th_rpcgss nfs_acl lockd grace sunrpc lp parport ip_tables x_tables autofs4 
btrfs
  zstd_compress raid456 async_raid6_recov async_memcpy async_pq async_xor 
async_t
x xor raid6_pq libcrc32c raid1 raid0 multipath linear dm_mirror dm_region_hash 
d
m_log hid_generic usbhid hid raid10 nouveau video i2c_algo_bit ttm 
drm_kms_helpe
r mxm_wmi syscopyarea sysfillrect e1000e sysimgblt fb_sys_fops ahci drm ptp 
liba
hci pps_core wmi
[ 4116.008825] CPU: 8 PID: 59 Comm: ksoftirqd/8 Not tainted 
4.15.0-21-lowlatency
  #22-Ubuntu
[ 4116.008825] Hardware name: ASUS All Series/X99-E, BIOS 1801 08/11/2017
[ 4116.008827] RIP: 0010:dev_watchdog+0x21d/0x230
[ 4116.008827] RSP: 0018:a9b8c64cbd60 EFLAGS: 00010282
[ 4116.008828] RAX:  RBX:  RCX: 
0006
[ 4116.008829] RDX: 0007 RSI: 0096 RDI: 
8e863f416490
[ 4116.008829] RBP: 

Re: [Bug 1766377] Re: Ethernet E1000 Controller Hangs

[Robert Dinse]

Looks like you nailed it.  Three machines running haven't barfed in over 
11 hours, used to several times an hour.

-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-
  Eskimo North Linux Friendly Internet Access, Shell Accounts, and Hosting.
Knowledgeable human assistance, not telephone trees or script readers.
  See our web site: http://www.eskimo.com/ (206) 812-0051 or (800) 246-6874.

On Tue, 24 Apr 2018, Joseph Salisbury wrote:

> Date: Tue, 24 Apr 2018 23:59:59 -
> From: Joseph Salisbury 
> Reply-To: Bug 1766377 <1766...@bugs.launchpad.net>
> To: nan...@eskimo.com
> Subject: [Bug 1766377] Re: Ethernet E1000 Controller Hangs
> 
> Yes, that is the correct kernel version.
>
> -- 
> You received this bug notification because you are subscribed to the bug
> report.
> https://bugs.launchpad.net/bugs/1766377
>
> Title:
>  Ethernet E1000 Controller Hangs
>
> Status in linux package in Ubuntu:
>  Incomplete
> Status in linux source package in Bionic:
>  Incomplete
>
> Bug description:
>   With Bionic kernel 4.15.0-15 and 4.15.0-17 I am experiencing periodic 
> hanging of the LAN connection.  This is happening on an Asus X99-DELUX 
> motherboard, controller specifications:
>  Intel® I218V, 1 x Gigabit LAN Controller(s)
>  Intel® I211-AT, 1 x Gigabit LAN
>  Dual Gigabit LAN controllers- 802.3az Energy Efficient Ethernet (EEE) 
> appliance
>  Support Teaming Technology
>  ASUS Turbo LAN Utility
>  The CPU is an i7-6850 and it is configured with 128GB of DDR4 RAM.
>  This machine has a number of Qemu/KVM virtual guests and is using a software 
> bridge to share the interface.
>  This did not happen with 17.10 and 4.13.0 kernel.  It is happening on 
> multiple machines here.
>  Here are the messages from dmesg:
>  1016198.957850] e1000e :00:19.0 eno1: Detected Hardware Unit Hang:
> TDH  
> TDT  <2d>
> next_to_use  <2d>
> next_to_clean
>   buffer_info[next_to_clean]:
> time_stamp   <13c8d0008>
> next_to_watch
> jiffies  <13c8d0880>
> next_to_watch.status <0>
>   MAC Status <80083>
>   PHY Status <796d>
>   PHY 1000BASE-T Status  <3c00>
>   PHY Extended Status<3000>
>   PCI Status <10>
>  [1016200.942072] e1000e :00:19.0 eno1: Detected Hardware Unit Hang:
> TDH  
> TDT  <2d>
> next_to_use  <2d>
> next_to_clean
>   buffer_info[next_to_clean]:
> time_stamp   <13c8d0008>
> next_to_watch
> jiffies  <13c8d1040>
> next_to_watch.status <0>
>   MAC Status <80083>
>   PHY Status <796d>
>   PHY 1000BASE-T Status  <3c00>
>   PHY Extended Status<3000>
>   PCI Status <10>
>  [1016202.413607] e1000e :00:19.0 eno1: Reset adapter unexpectedly
>  [1016202.413701] bridge0: port 1(eno1) entered disabled state
>  [1016202.413732] bridge0: topology change detected, propagating
>  [1016206.76] e1000e: eno1 NIC Link is Up 1000 Mbps Full Duplex, Flow 
> Control: Rx/Tx
>  [1016206.666708] bridge0: port 1(eno1) entered blocking state
>  [1016206.666712] bridge0: port 1(eno1) entered listening state
>  [1016216.750911] bridge0: port 1(eno1) entered learning state
>  [1016232.110291] bridge0: port 1(eno1) entered forwarding state
>  [1016232.110294] bridge0: topology change detected, sending tcn bpdu
>  [1017834.390579] cfg80211: Loading compiled-in X.509 certificates for 
> regulatory database
>  [1017834.390770] cfg80211: Loaded X.509 cert 'sforshee: 00b28ddf47aef9cea7'
>  [1017834.414792] platform regulatory.0: Direct firmware load for 
> regulatory.db failed with error -2
>  [1017834.414794] cfg80211: failed to load regulatory.db
>  If there is any other information I can provide to aid in resolution, please 
> contact me, nan...@eskimo.com.  Thank you!
>
>  ProblemType: Bug
>  DistroRelease: Ubuntu 18.04
>  Package: linux-image-4.15.0-15-lowlatency 4.15.0-15.16
>  ProcVersionSignature: Ubuntu 4.15.0-15.16-lowlatency 4.15.15
>  Uname: Linux 4.15.0-15-lowlatency x86_64
>  ApportVersion: 2.20.9-0ubuntu6
>  Architecture: amd64
>  AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/hwC1D3', 
> '/dev/snd/hwC1D2', '/dev/snd/hwC1D1', '/dev/snd/hwC1D0', '/dev/snd/pcmC1D9p', 
> '/dev/snd/pcmC1D8p', '/dev/snd/pcmC1D7p', '/dev/snd/pcmC1D3p', 
> '/dev/snd/controlC1', '/dev/snd/by-path', '/dev/snd/hwC0D0', 
> 

Re: [Bug 1766377] Re: Ethernet E1000 Controller Hangs

[Robert Dinse]

Ok, will reboot tonight when traffic is low and let you know how it goes.

-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-
  Eskimo North Linux Friendly Internet Access, Shell Accounts, and Hosting.
Knowledgeable human assistance, not telephone trees or script readers.
  See our web site: http://www.eskimo.com/ (206) 812-0051 or (800) 246-6874.

On Tue, 24 Apr 2018, Joseph Salisbury wrote:

> Date: Tue, 24 Apr 2018 23:59:59 -
> From: Joseph Salisbury 
> Reply-To: Bug 1766377 <1766...@bugs.launchpad.net>
> To: nan...@eskimo.com
> Subject: [Bug 1766377] Re: Ethernet E1000 Controller Hangs
> 
> Yes, that is the correct kernel version.
>
> -- 
> You received this bug notification because you are subscribed to the bug
> report.
> https://bugs.launchpad.net/bugs/1766377
>
> Title:
>  Ethernet E1000 Controller Hangs
>
> Status in linux package in Ubuntu:
>  Incomplete
> Status in linux source package in Bionic:
>  Incomplete
>
> Bug description:
>   With Bionic kernel 4.15.0-15 and 4.15.0-17 I am experiencing periodic 
> hanging of the LAN connection.  This is happening on an Asus X99-DELUX 
> motherboard, controller specifications:
>  Intel® I218V, 1 x Gigabit LAN Controller(s)
>  Intel® I211-AT, 1 x Gigabit LAN
>  Dual Gigabit LAN controllers- 802.3az Energy Efficient Ethernet (EEE) 
> appliance
>  Support Teaming Technology
>  ASUS Turbo LAN Utility
>  The CPU is an i7-6850 and it is configured with 128GB of DDR4 RAM.
>  This machine has a number of Qemu/KVM virtual guests and is using a software 
> bridge to share the interface.
>  This did not happen with 17.10 and 4.13.0 kernel.  It is happening on 
> multiple machines here.
>  Here are the messages from dmesg:
>  1016198.957850] e1000e :00:19.0 eno1: Detected Hardware Unit Hang:
> TDH  
> TDT  <2d>
> next_to_use  <2d>
> next_to_clean
>   buffer_info[next_to_clean]:
> time_stamp   <13c8d0008>
> next_to_watch
> jiffies  <13c8d0880>
> next_to_watch.status <0>
>   MAC Status <80083>
>   PHY Status <796d>
>   PHY 1000BASE-T Status  <3c00>
>   PHY Extended Status<3000>
>   PCI Status <10>
>  [1016200.942072] e1000e :00:19.0 eno1: Detected Hardware Unit Hang:
> TDH  
> TDT  <2d>
> next_to_use  <2d>
> next_to_clean
>   buffer_info[next_to_clean]:
> time_stamp   <13c8d0008>
> next_to_watch
> jiffies  <13c8d1040>
> next_to_watch.status <0>
>   MAC Status <80083>
>   PHY Status <796d>
>   PHY 1000BASE-T Status  <3c00>
>   PHY Extended Status<3000>
>   PCI Status <10>
>  [1016202.413607] e1000e :00:19.0 eno1: Reset adapter unexpectedly
>  [1016202.413701] bridge0: port 1(eno1) entered disabled state
>  [1016202.413732] bridge0: topology change detected, propagating
>  [1016206.76] e1000e: eno1 NIC Link is Up 1000 Mbps Full Duplex, Flow 
> Control: Rx/Tx
>  [1016206.666708] bridge0: port 1(eno1) entered blocking state
>  [1016206.666712] bridge0: port 1(eno1) entered listening state
>  [1016216.750911] bridge0: port 1(eno1) entered learning state
>  [1016232.110291] bridge0: port 1(eno1) entered forwarding state
>  [1016232.110294] bridge0: topology change detected, sending tcn bpdu
>  [1017834.390579] cfg80211: Loading compiled-in X.509 certificates for 
> regulatory database
>  [1017834.390770] cfg80211: Loaded X.509 cert 'sforshee: 00b28ddf47aef9cea7'
>  [1017834.414792] platform regulatory.0: Direct firmware load for 
> regulatory.db failed with error -2
>  [1017834.414794] cfg80211: failed to load regulatory.db
>  If there is any other information I can provide to aid in resolution, please 
> contact me, nan...@eskimo.com.  Thank you!
>
>  ProblemType: Bug
>  DistroRelease: Ubuntu 18.04
>  Package: linux-image-4.15.0-15-lowlatency 4.15.0-15.16
>  ProcVersionSignature: Ubuntu 4.15.0-15.16-lowlatency 4.15.15
>  Uname: Linux 4.15.0-15-lowlatency x86_64
>  ApportVersion: 2.20.9-0ubuntu6
>  Architecture: amd64
>  AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/hwC1D3', 
> '/dev/snd/hwC1D2', '/dev/snd/hwC1D1', '/dev/snd/hwC1D0', '/dev/snd/pcmC1D9p', 
> '/dev/snd/pcmC1D8p', '/dev/snd/pcmC1D7p', '/dev/snd/pcmC1D3p', 
> '/dev/snd/controlC1', '/dev/snd/by-path', '/dev/snd/hwC0D0', 
> '/dev/snd/pcmC0D2c', '/dev/snd/pcmC0D1p', 

Re: [Bug 1766377] Re: Ethernet E1000 Controller Hangs

[Robert Dinse]

There is a 4.50.0-20.21 in Proposed, is this the correct kernel?

On Tue, April 24, 2018 8:47 am, Joseph Salisbury wrote:
> Would it be possible for you to test the proposed kernel and post back if
> it resolves this bug? See https://wiki.ubuntu.com/Testing/EnableProposed
> for documentation how to enable and use -proposed.
>
> Thank you in advance!
>
>
> ** Changed in: linux (Ubuntu)
> Importance: Undecided => High
>
>
> ** Also affects: linux (Ubuntu Bionic)
> Importance: High
> Status: Confirmed
>
>
> ** Tags added: kernel-key
>
>
> ** Changed in: linux (Ubuntu Bionic)
> Status: Confirmed => Incomplete
>
>
> --
> You received this bug notification because you are subscribed to the bug
> report. https://bugs.launchpad.net/bugs/1766377
>
>
> Title:
> Ethernet E1000 Controller Hangs
>
>
> Status in linux package in Ubuntu:
> Incomplete
> Status in linux source package in Bionic:
> Incomplete
>
>
> Bug description:
> With Bionic kernel 4.15.0-15 and 4.15.0-17 I am experiencing periodic
> hanging of the LAN connection.  This is happening on an Asus X99-DELUX
> motherboard, controller specifications: Intel® I218V, 1 x Gigabit LAN
> Controller(s)
> Intel® I211-AT, 1 x Gigabit LAN
> Dual Gigabit LAN controllers- 802.3az Energy Efficient Ethernet (EEE)
> appliance Support Teaming Technology
> ASUS Turbo LAN Utility
> The CPU is an i7-6850 and it is configured with 128GB of DDR4 RAM.
> This machine has a number of Qemu/KVM virtual guests and is using a
> software bridge to share the interface. This did not happen with 17.10 and
> 4.13.0 kernel.  It is happening on multiple machines here.
> Here are the messages from dmesg:
> 1016198.957850] e1000e :00:19.0 eno1: Detected Hardware Unit Hang:
> TDH  
> TDT  <2d>
> next_to_use  <2d> next_to_clean
> buffer_info[next_to_clean]:
> time_stamp   <13c8d0008> next_to_watch jiffies
> <13c8d0880>
> next_to_watch.status <0> MAC Status <80083>
> PHY Status <796d>
> PHY 1000BASE-T Status  <3c00>
> PHY Extended Status<3000>
> PCI Status <10>
> [1016200.942072] e1000e :00:19.0 eno1: Detected Hardware Unit Hang:
> TDH  
> TDT  <2d>
> next_to_use  <2d> next_to_clean
> buffer_info[next_to_clean]:
> time_stamp   <13c8d0008> next_to_watch jiffies
> <13c8d1040>
> next_to_watch.status <0> MAC Status <80083>
> PHY Status <796d>
> PHY 1000BASE-T Status  <3c00>
> PHY Extended Status<3000>
> PCI Status <10>
> [1016202.413607] e1000e :00:19.0 eno1: Reset adapter unexpectedly
> [1016202.413701] bridge0: port 1(eno1) entered disabled state
> [1016202.413732] bridge0: topology change detected, propagating
> [1016206.76] e1000e: eno1 NIC Link is Up 1000 Mbps Full Duplex, Flow
> Control: Rx/Tx
> [1016206.666708] bridge0: port 1(eno1) entered blocking state
> [1016206.666712] bridge0: port 1(eno1) entered listening state
> [1016216.750911] bridge0: port 1(eno1) entered learning state
> [1016232.110291] bridge0: port 1(eno1) entered forwarding state
> [1016232.110294] bridge0: topology change detected, sending tcn bpdu
> [1017834.390579] cfg80211: Loading compiled-in X.509 certificates for
> regulatory database [1017834.390770] cfg80211: Loaded X.509 cert
> 'sforshee: 00b28ddf47aef9cea7'
> [1017834.414792] platform regulatory.0: Direct firmware load for
> regulatory.db failed with error -2 [1017834.414794] cfg80211: failed to
> load regulatory.db If there is any other information I can provide to aid
> in resolution, please contact me, nan...@eskimo.com.  Thank you!
>
> ProblemType: Bug
> DistroRelease: Ubuntu 18.04
> Package: linux-image-4.15.0-15-lowlatency 4.15.0-15.16
> ProcVersionSignature: Ubuntu 4.15.0-15.16-lowlatency 4.15.15
> Uname: Linux 4.15.0-15-lowlatency x86_64
> ApportVersion: 2.20.9-0ubuntu6
> Architecture: amd64
> AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/hwC1D3',
> '/dev/snd/hwC1D2', '/dev/snd/hwC1D1', '/dev/snd/hwC1D0',
> '/dev/snd/pcmC1D9p', '/dev/snd/pcmC1D8p', '/dev/snd/pcmC1D7p',
> '/dev/snd/pcmC1D3p', '/dev/snd/controlC1', '/dev/snd/by-path',
> '/dev/snd/hwC0D0', '/dev/snd/pcmC0D2c', '/dev/snd/pcmC0D1p',
> '/dev/snd/pcmC0D0c', '/dev/snd/pcmC0D0p', '/dev/snd/controlC0',
> '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1:
> CurrentDesktop: MATE
> Date: Mon Apr 23 16:45:30 2018
> HibernationDevice: RESUME=UUID=963cb206-8962-4fc0-82a1-fc4f02a9b5c5
> InstallationDate: Installed on 2017-05-05 (353 days ago)
> InstallationMedia: Ubuntu-MATE 17.04 "Zesty Zapus" - Release amd64
> (20170412)
> MachineType: ASUS All Series
> ProcFB: 0 nouveaufb
> ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.15.0-15-lowlatency
> root=UUID=28825f5b-a6fd-4e09-982c-0513ae4d2842 ro quiet splash
> vt.handoff=1 PulseList: Error: command ['pacmd', 'list'] failed with exit
> code 1: No PulseAudio daemon running, or not running as session daemon.
> 

Re: [Bug 1766377] Re: Ethernet E1000 Controller Hangs

[Robert Dinse]

Yes though I will need to boot at night when usage is low.  Can you tell
me what the kernel version is so I an be sure to get the correct kernel?

-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-
  Eskimo North Linux Friendly Internet Access, Shell Accounts, and Hosting.
Knowledgeable human assistance, not telephone trees or script readers.
  See our web site: http://www.eskimo.com/ (206) 812-0051 or (800) 246-6874.

On Tue, 24 Apr 2018, Joseph Salisbury wrote:

> Date: Tue, 24 Apr 2018 15:47:57 -
> From: Joseph Salisbury 
> Reply-To: Bug 1766377 <1766...@bugs.launchpad.net>
> To: nan...@eskimo.com
> Subject: [Bug 1766377] Re: Ethernet E1000 Controller Hangs
> 
> Would it be possible for you to test the proposed kernel and post back if it 
> resolves this bug?
> See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how to 
> enable and use -proposed.
>
> Thank you in advance!
>
> ** Changed in: linux (Ubuntu)
>   Importance: Undecided => High
>
> ** Also affects: linux (Ubuntu Bionic)
>   Importance: High
>   Status: Confirmed
>
> ** Tags added: kernel-key
>
> ** Changed in: linux (Ubuntu Bionic)
>   Status: Confirmed => Incomplete
>
> -- 
> You received this bug notification because you are subscribed to the bug
> report.
> https://bugs.launchpad.net/bugs/1766377
>
> Title:
>  Ethernet E1000 Controller Hangs
>
> Status in linux package in Ubuntu:
>  Incomplete
> Status in linux source package in Bionic:
>  Incomplete
>
> Bug description:
>   With Bionic kernel 4.15.0-15 and 4.15.0-17 I am experiencing periodic 
> hanging of the LAN connection.  This is happening on an Asus X99-DELUX 
> motherboard, controller specifications:
>  Intel® I218V, 1 x Gigabit LAN Controller(s)
>  Intel® I211-AT, 1 x Gigabit LAN
>  Dual Gigabit LAN controllers- 802.3az Energy Efficient Ethernet (EEE) 
> appliance
>  Support Teaming Technology
>  ASUS Turbo LAN Utility
>  The CPU is an i7-6850 and it is configured with 128GB of DDR4 RAM.
>  This machine has a number of Qemu/KVM virtual guests and is using a software 
> bridge to share the interface.
>  This did not happen with 17.10 and 4.13.0 kernel.  It is happening on 
> multiple machines here.
>  Here are the messages from dmesg:
>  1016198.957850] e1000e :00:19.0 eno1: Detected Hardware Unit Hang:
> TDH  
> TDT  <2d>
> next_to_use  <2d>
> next_to_clean
>   buffer_info[next_to_clean]:
> time_stamp   <13c8d0008>
> next_to_watch
> jiffies  <13c8d0880>
> next_to_watch.status <0>
>   MAC Status <80083>
>   PHY Status <796d>
>   PHY 1000BASE-T Status  <3c00>
>   PHY Extended Status<3000>
>   PCI Status <10>
>  [1016200.942072] e1000e :00:19.0 eno1: Detected Hardware Unit Hang:
> TDH  
> TDT  <2d>
> next_to_use  <2d>
> next_to_clean
>   buffer_info[next_to_clean]:
> time_stamp   <13c8d0008>
> next_to_watch
> jiffies  <13c8d1040>
> next_to_watch.status <0>
>   MAC Status <80083>
>   PHY Status <796d>
>   PHY 1000BASE-T Status  <3c00>
>   PHY Extended Status<3000>
>   PCI Status <10>
>  [1016202.413607] e1000e :00:19.0 eno1: Reset adapter unexpectedly
>  [1016202.413701] bridge0: port 1(eno1) entered disabled state
>  [1016202.413732] bridge0: topology change detected, propagating
>  [1016206.76] e1000e: eno1 NIC Link is Up 1000 Mbps Full Duplex, Flow 
> Control: Rx/Tx
>  [1016206.666708] bridge0: port 1(eno1) entered blocking state
>  [1016206.666712] bridge0: port 1(eno1) entered listening state
>  [1016216.750911] bridge0: port 1(eno1) entered learning state
>  [1016232.110291] bridge0: port 1(eno1) entered forwarding state
>  [1016232.110294] bridge0: topology change detected, sending tcn bpdu
>  [1017834.390579] cfg80211: Loading compiled-in X.509 certificates for 
> regulatory database
>  [1017834.390770] cfg80211: Loaded X.509 cert 'sforshee: 00b28ddf47aef9cea7'
>  [1017834.414792] platform regulatory.0: Direct firmware load for 
> regulatory.db failed with error -2
>  [1017834.414794] cfg80211: failed to load regulatory.db
>  If there is any other information I can provide to aid in resolution, please 
> contact me, nan...@eskimo.com.  Thank you!
>
>  ProblemType: Bug
>  DistroRelease: Ubuntu 18.04
>  Package: