apport information
** Attachment added: "ProcEnviron.txt"
https://bugs.launchpad.net/bugs/1687130/+attachment/4869437/+files/ProcEnviron.txt
** Changed in: linux (Ubuntu)
Status: Incomplete => Confirmed
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https://bugs.launchpad.net/bugs/1687130
Title:
NFS client input/output-error on kernel >=4.9
Status in linux package in Ubuntu:
Confirmed
Bug description:
I'm experiencing input/output errors on mounting NFS-shares, starting
from kernel 4.9 and above.
No errors logged to syslog, but the system reports IO-errors when
reading from the mount after only a few seconds. Doesn't matter which
program that are accessing the disk.
My problems started after upgrading to ubuntu 17.04, but I have
narrowed it down to being present from ubuntu kernel 4.9 and above by
installing kernels from the ubuntu kernel ppa - i.e. when downgrading
to latest 4.8-kernel from the PPA, NFS starts working as expected even
on ubuntu 17.04. So it's definetely kernel related.
Probably not a hardware error either as the bug is present when NFS is
mounted over both eth0 and wlan0.
Only special thing in my setup is that NFS is mounted over an ssh-
tunnel.
The NFS server runs an completely up to date ubuntu 16.04 LTS install.
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ApportVersion: 2.20.4-0ubuntu4
Architecture: amd64
CurrentDesktop: Unity:Unity7
DistroRelease: Ubuntu 17.04
EcryptfsInUse: Yes
InstallationDate: Installed on 2014-08-11 (991 days ago)
InstallationMedia: Ubuntu 14.04.1 LTS "Trusty Tahr" - Release amd64
(20140722.2)
Package: linux (not installed)
Tags: zesty
Uname: Linux 4.8.17-040817-generic x86_64
UnreportableReason: The running kernel is not an Ubuntu kernel
UpgradeStatus: Upgraded to zesty on 2017-04-16 (12 days ago)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo vboxusers
_MarkForUpload: True
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