** Changed in: linux (Ubuntu)
Status: Incomplete => In Progress
** Changed in: linux (Ubuntu Bionic)
Status: Incomplete => In Progress
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https://bugs.launchpad.net/bugs/1788623
Title:
regression: IPv6 PMTU discovery fails with source-specific routing
Status in linux package in Ubuntu:
In Progress
Status in linux source package in Bionic:
In Progress
Bug description:
IPv6 PMTU discovery fails when using source-specific routing on Ubuntu
18.04.
I have attached a test case called pmtu-sads.sh which is based on
tools/testing/selftests/net/pmtu.sh in the linux source.
I have verified that the test fails on:
Ubuntu 18.04 with 4.15.0-30.32
Ubuntu 18.04 with 4.17.0-041700.201806041953
Ubuntu 18.04 with 4.18.3-041803.201808180530
The test succeeds on Ubuntu 16.04 with 4.4.0.131.137 which makes it a
regression.
System information:
Ubuntu 4.15.0-30.32-generic 4.15.18
Description: Ubuntu 18.04.1 LTS
Release: 18.04
See below for a patch which is working for me. I'm currently using linux
kernel 4.15.0-32.35 built from git://kernel.ubuntu.com/ubuntu/ubuntu-bionic.git
with this patch.
---
ProblemType: Bug
AlsaVersion: Advanced Linux Sound Architecture Driver Version
k4.15.0-30-generic.
AplayDevices: Error: [Errno 2] No such file or directory: 'aplay': 'aplay'
ApportVersion: 2.20.9-0ubuntu7.2
Architecture: amd64
ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord':
'arecord'
AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/by-path',
'/dev/snd/hwC0D0', '/dev/snd/pcmC0D0c', '/dev/snd/pcmC0D0p',
'/dev/snd/controlC0', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1:
Card0.Amixer.info: Error: [Errno 2] No such file or directory: 'amixer':
'amixer'
Card0.Amixer.values: Error: [Errno 2] No such file or directory: 'amixer':
'amixer'
DistroRelease: Ubuntu 18.04
IwConfig: Error: [Errno 2] No such file or directory: 'iwconfig': 'iwconfig'
Lsusb:
Bus 001 Device 002: ID 0627:0001 Adomax Technology Co., Ltd
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
MachineType: QEMU Standard PC (i440FX + PIIX, 1996)
Package: linux (not installed)
ProcFB: 0 qxldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.15.0-30-generic
root=UUID=041f6e1e-4904-4760-8518-3a88dc288556 ro splash quiet vt.handoff=1
ProcVersionSignature: Ubuntu 4.15.0-30.32-generic 4.15.18
RelatedPackageVersions:
linux-restricted-modules-4.15.0-30-generic N/A
linux-backports-modules-4.15.0-30-generic N/A
linux-firmware 1.173.1
RfKill: Error: [Errno 2] No such file or directory: 'rfkill': 'rfkill'
Tags: bionic
Uname: Linux 4.15.0-30-generic x86_64
UnreportableReason: This report is about a package that is not installed.
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
_MarkForUpload: False
dmi.bios.date: 04/01/2014
dmi.bios.vendor: SeaBIOS
dmi.bios.version: 1.10.2-1ubuntu1
dmi.chassis.type: 1
dmi.chassis.vendor: QEMU
dmi.chassis.version: pc-i440fx-bionic
dmi.modalias:
dmi:bvnSeaBIOS:bvr1.10.2-1ubuntu1:bd04/01/2014:svnQEMU:pnStandardPC(i440FX+PIIX,1996):pvrpc-i440fx-bionic:cvnQEMU:ct1:cvrpc-i440fx-bionic:
dmi.product.name: Standard PC (i440FX + PIIX, 1996)
dmi.product.version: pc-i440fx-bionic
dmi.sys.vendor: QEMU
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