Xenial Package: linux-image-generic (4.4.0.186.192)
Since Xenial Kernel upgrade to version linux: 4.4.0-186.216, there is a problem with the NFS mounts, when the NFS Server has a timeout.
The journal and syslog are reporting thousands of the following messages per second
Jul 30 09:05:07 ... kernel: [ 280.904750] xs_tcp_setup_socket: connect returned unhandled error -1
The server becomes instable and OS hungs. Reboot resolves the issue until the next NFS timeout occures.
using the previous kernel Linux 4.4.0-185-generic resolves the issue.
---
AlsaDevices:
total 0
crw-rw---- 1 root audio 116, 1 Jul 27 05:02 seq
crw-rw---- 1 root audio 116, 33 Jul 27 05:02 timer
AplayDevices: Error: [Errno 2] No such file or directory
ApportVersion: 2.20.1-0ubuntu2.23
Architecture: amd64
ArecordDevices: Error: [Errno 2] No such file or directory
AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1:
DistroRelease: Ubuntu 16.04
HibernationDevice: RESUME=UUID=4bf8bc57-9e9e-4e8b-9bea-6d2b6273d223
InstallationDate: Installed on 2016-06-02 (1519 days ago)
InstallationMedia: Ubuntu-Server 16.04 LTS "Xenial Xerus" - Release amd64 (20160420.3)
IwConfig: Error: [Errno 2] No such file or directory
Lsusb:
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 003: ID 0557:2419 ATEN International Co., Ltd
Bus 001 Device 002: ID 0557:7000 ATEN International Co., Ltd Hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
MachineType: Supermicro Super Server
Package: linux (not installed)
PciMultimedia:
ProcFB: 0 VESA VGA
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.4.0-186-generic root=UUID=d355e42f-3b5a-4479-9664-60bcbd373d6b ro net.ifnames=0 nomodeset reboot=acpi
ProcVersionSignature: Ubuntu 4.4.0-186.216-generic 4.4.228
RelatedPackageVersions:
linux-restricted-modules-4.4.0-186-generic N/A
linux-backports-modules-4.4.0-186-generic N/A
linux-firmware 1.157.23
RfKill: Error: [Errno 2] No such file or directory
Tags: xenial
Uname: Linux 4.4.0-186-generic x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups:
_MarkForUpload: True
dmi.bios.date: 05/23/2018
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 2.2
dmi.board.asset.tag: To be filled by O.E.M.
dmi.board.name: X11SSH-LN4F
dmi.board.vendor: Supermicro
dmi.board.version: 1.01
dmi.chassis.asset.tag: To be filled by O.E.M.
dmi.chassis.type: 17
dmi.chassis.vendor: Supermicro
dmi.chassis.version: 0123456789
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr2.2:bd05/23/2018:svnSupermicro:pnSuperServer:pvr0123456789:rvnSupermicro:rnX11SSH-LN4F:rvr1.01:cvnSupermicro:ct17:cvr0123456789:
dmi.product.name: Super Server
dmi.product.version: 0123456789
dmi.sys.vendor: Supermicro
This bug is missing log files that will aid in diagnosing the problem. While running an Ubuntu kernel (not a mainline or third-party kernel) please enter the following command in a terminal window:
apport-collect 1889721
and then change the status of the bug to 'Confirmed'.
If, due to the nature of the issue you have encountered, you are unable to run this command, please add a comment stating that fact and change the bug status to 'Confirmed'.
This change has been made by an automated script, maintained by the Ubuntu Kernel Team.