SRU request submitted:
https://lists.ubuntu.com/archives/kernel-team/2018-May/092740.html
** Description changed:
+ == SRU Justification ==
+ A regression was introduce in Xenial linux-image-4.4.0-127-generic. It
+ was found that this regression was introduced by mainline commit
+ b699d0035836. This commit was applied to Xenial via the 4.4.128 upstream
stable
+ updates.
+
+ Upstream decided to revert this commit in mainline commit f4eb17e1efe5,
+ which was added in v4.12-rc5.
+
+ == Fix ==
+ f4eb17e1efe5 ("Revert "sit: reload iphdr in ipip6_rcv"")
+
+ == Regression Potential ==
+ Low. This is a revert request to resolve a regression. The revert was
+ also performed upstream.
+
+ == Test Case ==
+ A test kernel was built with this patch and tested by the original bug
reporter.
+ The bug reporter states the test kernel resolved the bug.
+
+
+
Since deploying linux-image-4.4.0-127-generic (4.4.0-127.153) on a
Xenial VM with a sit tunnel, I get such messages:
May 22 10:49:38 gw kernel: [ 68.121601] sit: non-ECT from 0.0.0.0 with
TOS=0x5
Those are logged quite often:
# grep -cF 'sit: non-ECT' /var/log/syslog
9108
Reverting to linux-image-4.4.0-124-generic (4.4.0-124.148) fixes the
issue.
# lsb_release -rd
Description: Ubuntu 16.04.4 LTS
Release: 16.04
# apt-cache policy linux-image-4.4.0-127-generic
linux-image-4.4.0-127-generic:
- Installed: 4.4.0-127.153
- Candidate: 4.4.0-127.153
- Version table:
- *** 4.4.0-127.153 500
- 500 http://archive.ubuntu.com/ubuntu xenial-updates/main amd64
Packages
- 500 http://security.ubuntu.com/ubuntu xenial-security/main amd64
Packages
- 100 /var/lib/dpkg/status
+ Installed: 4.4.0-127.153
+ Candidate: 4.4.0-127.153
+ Version table:
+ *** 4.4.0-127.153 500
+ 500 http://archive.ubuntu.com/ubuntu xenial-updates/main amd64
Packages
+ 500 http://security.ubuntu.com/ubuntu xenial-security/main amd64
Packages
+ 100 /var/lib/dpkg/status
ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: linux-image-4.4.0-127-generic 4.4.0-127.153
ProcVersionSignature: Ubuntu 4.4.0-127.153-generic 4.4.128
Uname: Linux 4.4.0-127-generic x86_64
AlsaDevices:
- total 0
- crw-rw---- 1 root audio 116, 1 May 22 20:08 seq
- crw-rw---- 1 root audio 116, 33 May 22 20:08 timer
+ total 0
+ crw-rw---- 1 root audio 116, 1 May 22 20:08 seq
+ crw-rw---- 1 root audio 116, 33 May 22 20:08 timer
AplayDevices: Error: [Errno 2] No such file or directory: 'aplay'
ApportVersion: 2.20.1-0ubuntu2.17
Architecture: amd64
ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord'
AudioDevicesInUse: Error: [Errno 2] No such file or directory: 'fuser'
CRDA: N/A
Date: Tue May 22 21:18:45 2018
IwConfig: Error: [Errno 2] No such file or directory: 'iwconfig'
Lspci: Error: [Errno 2] No such file or directory: 'lspci'
Lsusb: Error: [Errno 2] No such file or directory: 'lsusb'
MachineType: QEMU Standard PC (i440FX + PIIX, 1996)
PciMultimedia:
-
+
ProcEnviron:
- TERM=xterm
- PATH=(custom, no user)
- LANG=en_US.UTF-8
- SHELL=/bin/bash
+ TERM=xterm
+ PATH=(custom, no user)
+ LANG=en_US.UTF-8
+ SHELL=/bin/bash
ProcFB: 0 EFI VGA
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-127-generic
root=UUID=67f7ee15-64f4-4c85-805c-08386d5fed8b ro console=ttyS0 net.ifnames=0
kaslr vsyscall=none nmi_watchdog=0 possible_cpus=1 pti=on nr_cpus=1
RelatedPackageVersions:
- linux-restricted-modules-4.4.0-127-generic N/A
- linux-backports-modules-4.4.0-127-generic N/A
- linux-firmware N/A
+ linux-restricted-modules-4.4.0-127-generic N/A
+ linux-backports-modules-4.4.0-127-generic N/A
+ linux-firmware N/A
RfKill: Error: [Errno 2] No such file or directory: 'rfkill'
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 04/01/2014
dmi.bios.vendor: SeaBIOS
dmi.bios.version: Ubuntu-1.8.2-1ubuntu1
dmi.chassis.type: 1
dmi.chassis.vendor: QEMU
dmi.chassis.version: pc-i440fx-2.5
dmi.modalias:
dmi:bvnSeaBIOS:bvrUbuntu-1.8.2-1ubuntu1:bd04/01/2014:svnQEMU:pnStandardPC(i440FX+PIIX,1996):pvrpc-i440fx-2.5:cvnQEMU:ct1:cvrpc-i440fx-2.5:
dmi.product.name: Standard PC (i440FX + PIIX, 1996)
dmi.product.version: pc-i440fx-2.5
dmi.sys.vendor: QEMU
- ---
+ ---
AlsaDevices:
- total 0
- crw-rw---- 1 root audio 116, 1 May 22 21:33 seq
- crw-rw---- 1 root audio 116, 33 May 22 21:33 timer
+ total 0
+ crw-rw---- 1 root audio 116, 1 May 22 21:33 seq
+ crw-rw---- 1 root audio 116, 33 May 22 21:33 timer
AplayDevices: Error: [Errno 2] No such file or directory
ApportVersion: 2.20.1-0ubuntu2.17
Architecture: amd64
ArecordDevices: Error: [Errno 2] No such file or directory
AudioDevicesInUse: Error: [Errno 2] No such file or directory
CRDA: N/A
DistroRelease: Ubuntu 16.04
IwConfig: Error: [Errno 2] No such file or directory
Lspci: Error: [Errno 2] No such file or directory
Lsusb: Error: [Errno 2] No such file or directory
MachineType: QEMU Standard PC (i440FX + PIIX, 1996)
Package: linux (not installed)
PciMultimedia:
-
+
ProcEnviron:
- TERM=xterm
- PATH=(custom, no user)
- LANG=en_US.UTF-8
- SHELL=/bin/bash
+ TERM=xterm
+ PATH=(custom, no user)
+ LANG=en_US.UTF-8
+ SHELL=/bin/bash
ProcFB: 0 EFI VGA
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-124-generic
root=UUID=67f7ee15-64f4-4c85-805c-08386d5fed8b ro kaslr net.ifnames=0
nmi_watchdog=0 nr_cpus=1 pti=on console=ttyS0 vsyscall=none
ProcVersionSignature: Ubuntu 4.4.0-124.148-generic 4.4.117
RelatedPackageVersions:
- linux-restricted-modules-4.4.0-124-generic N/A
- linux-backports-modules-4.4.0-124-generic N/A
- linux-firmware N/A
+ linux-restricted-modules-4.4.0-124-generic N/A
+ linux-backports-modules-4.4.0-124-generic N/A
+ linux-firmware N/A
RfKill: Error: [Errno 2] No such file or directory
Tags: xenial
Uname: Linux 4.4.0-124-generic x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups:
-
+
_MarkForUpload: True
dmi.bios.date: 04/01/2014
dmi.bios.vendor: SeaBIOS
dmi.bios.version: Ubuntu-1.8.2-1ubuntu1
dmi.chassis.type: 1
dmi.chassis.vendor: QEMU
dmi.chassis.version: pc-i440fx-2.5
dmi.modalias:
dmi:bvnSeaBIOS:bvrUbuntu-1.8.2-1ubuntu1:bd04/01/2014:svnQEMU:pnStandardPC(i440FX+PIIX,1996):pvrpc-i440fx-2.5:cvnQEMU:ct1:cvrpc-i440fx-2.5:
dmi.product.name: Standard PC (i440FX + PIIX, 1996)
dmi.product.version: pc-i440fx-2.5
dmi.sys.vendor: QEMU
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https://bugs.launchpad.net/bugs/1772775
Title:
4.4.0-127.153 generates many "sit: non-ECT" messages
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