This bug is missing log files that will aid in diagnosing the problem.
>From a terminal window please run:
apport-collect 1639398
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.
** Changed in: linux (Ubuntu)
Status: New => Incomplete
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https://bugs.launchpad.net/bugs/1639398
Title:
IPv6 UDP DNS Queries Fail
Status in linux package in Ubuntu:
Incomplete
Bug description:
DNS queries using IPv6 UDP time out and return no result, for example
"dig @2001:4860:4860::8888 google.com a" fails in this manner. "dig
@2001:4860:4860::8888 google.com a +tcp" succeeds using IPv6 TCP, and
"dig @8.8.8.8 google.com a" succeeds using IPv4 UDP. This problem
occurs on a virtual machine running on the Windows Server 2016 Hyper-V
hypervisor. It is not reproducible on VMware vSphere 6.0. I do not
have access to other hypervisors for additonal testing. The problem is
also not reproducible on Ubuntu 1404 on Hyper-V. Installing the linux-
virtual package makes no difference. See bug 1527902 for what appears
to be the same problem in different circumstances.
ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: linux-image-4.4.0-45-generic 4.4.0-45.66
ProcVersionSignature: Ubuntu 4.4.0-45.66-generic 4.4.21
Uname: Linux 4.4.0-45-generic x86_64
AlsaDevices:
total 0
crw-rw----+ 1 root audio 116, 1 Nov 4 20:23 seq
crw-rw----+ 1 root audio 116, 33 Nov 4 20:23 timer
AplayDevices: Error: [Errno 2] No such file or directory: 'aplay'
ApportVersion: 2.20.1-0ubuntu2.1
Architecture: amd64
ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord'
AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq',
'/dev/snd/timer'] failed with exit code 1:
Date: Fri Nov 4 23:00:11 2016
HibernationDevice: RESUME=/dev/mapper/ubuntu1604--vg-swap_1
InstallationDate: Installed on 2016-11-04 (0 days ago)
InstallationMedia: Ubuntu-Server 16.04.1 LTS "Xenial Xerus" - Release amd64
(20160719)
IwConfig: Error: [Errno 2] No such file or directory: 'iwconfig'
Lspci:
Lsusb: Error: command ['lsusb'] failed with exit code 1:
MachineType: Microsoft Corporation Virtual Machine
PciMultimedia:
ProcEnviron:
TERM=linux
PATH=(custom, no user)
LANG=en_US.UTF-8
SHELL=/bin/bash
ProcFB: 0 hyperv_fb
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.4.0-45-generic.efi.signed
root=/dev/mapper/hostname--vg-root ro
RelatedPackageVersions:
linux-restricted-modules-4.4.0-45-generic N/A
linux-backports-modules-4.4.0-45-generic N/A
linux-firmware 1.157.4
RfKill: Error: [Errno 2] No such file or directory: 'rfkill'
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 11/26/2012
dmi.bios.vendor: Microsoft Corporation
dmi.bios.version: Hyper-V UEFI Release v1.0
dmi.board.asset.tag: None
dmi.board.name: Virtual Machine
dmi.board.vendor: Microsoft Corporation
dmi.board.version: Hyper-V UEFI Release v1.0
dmi.chassis.asset.tag: 6978-1102-7319-2300-1885-2380-34
dmi.chassis.type: 3
dmi.chassis.vendor: Microsoft Corporation
dmi.chassis.version: Hyper-V UEFI Release v1.0
dmi.modalias:
dmi:bvnMicrosoftCorporation:bvrHyper-VUEFIReleasev1.0:bd11/26/2012:svnMicrosoftCorporation:pnVirtualMachine:pvrHyper-VUEFIReleasev1.0:rvnMicrosoftCorporation:rnVirtualMachine:rvrHyper-VUEFIReleasev1.0:cvnMicrosoftCorporation:ct3:cvrHyper-VUEFIReleasev1.0:
dmi.product.name: Virtual Machine
dmi.product.version: Hyper-V UEFI Release v1.0
dmi.sys.vendor: Microsoft Corporation
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