I am using Ubuntu 16.04.
After upgrading the kernel from 4.4.0-141.167-generic to 4.4.0-142.168-generic I am experiencing problem logging in via the tty. I am able to provide my username, but the terminal automatically submit password before I am able to type it. If I start the computer with the previous kernel (4.4.0-141.167) it works as expected.
I have done strace on the tty in both scenarios while performing the login with the following command:
"sudo strace -p 1572 -s 1024 -vff -o tty-login-issue/login"
4.4.0-141.167-generic (works):
https://gist.github.com/ivarconr/b022d2b4cadfc654031e8a930bf4408b
4.4.0-142.168-generic (fails):
https://gist.github.com/ivarconr/603409ad1f0a3343a7f44a854283befc
Let me know if you need me to provide any additional details.
---
ApportVersion: 2.20.1-0ubuntu2.18
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: ivaosthu 3706 F.... pulseaudio
/dev/snd/controlC1: ivaosthu 3706 F.... pulseaudio
CurrentDesktop: i3
DistroRelease: Ubuntu 16.04
HibernationDevice: RESUME=UUID=08d4aeb0-e54b-475e-8a26-b9e8b488a314
InstallationDate: Installed on 2016-08-12 (909 days ago)
InstallationMedia: Ubuntu 16.04.1 LTS "Xenial Xerus" - Release amd64 (20160719)
MachineType: LENOVO 20EQS2HW00
Package: linux (not installed)
ProcFB: 0 EFI VGA
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-142-generic.efi.signed root=UUID=a0472864-d2ab-4f9d-8b4c-e89db4dbd51b ro quiet nomodeset splash vt.handoff=7
ProcVersionSignature: Ubuntu 4.4.0-142.168-generic 4.4.167
RelatedPackageVersions:
linux-restricted-modules-4.4.0-142-generic N/A
linux-backports-modules-4.4.0-142-generic N/A
linux-firmware 1.157.21
Tags: xenial
Uname: Linux 4.4.0-142-generic x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom davfs2 dip docker lpadmin plugdev sambashare sudo
_MarkForUpload: True
dmi.bios.date: 05/10/2016
dmi.bios.vendor: LENOVO
dmi.bios.version: N1EET52W (1.26 )
dmi.board.asset.tag: Not Available
dmi.board.name: 20EQS2HW00
dmi.board.vendor: LENOVO
dmi.board.version: SDK0J40697 WIN
dmi.chassis.asset.tag: No Asset Information
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: None
dmi.modalias: dmi:bvnLENOVO:bvrN1EET52W(1.26):bd05/10/2016:svnLENOVO:pn20EQS2HW00:pvrThinkPadP50:rvnLENOVO:rn20EQS2HW00:rvrSDK0J40697WIN:cvnLENOVO:ct10:cvrNone:
dmi.product.name: 20EQS2HW00
dmi.product.version: ThinkPad P50
dmi.sys.vendor: LENOVO
---
ApportVersion: 2.20.1-0ubuntu2.18
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: ivaosthu 3706 F.... pulseaudio
/dev/snd/controlC1: ivaosthu 3706 F.... pulseaudio
CurrentDesktop: i3
DistroRelease: Ubuntu 16.04
HibernationDevice: RESUME=UUID=08d4aeb0-e54b-475e-8a26-b9e8b488a314
InstallationDate: Installed on 2016-08-12 (909 days ago)
InstallationMedia: Ubuntu 16.04.1 LTS "Xenial Xerus" - Release amd64 (20160719)
MachineType: LENOVO 20EQS2HW00
Package: linux (not installed)
ProcFB: 0 EFI VGA
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-142-generic.efi.signed root=UUID=a0472864-d2ab-4f9d-8b4c-e89db4dbd51b ro quiet nomodeset splash vt.handoff=7
ProcVersionSignature: Ubuntu 4.4.0-142.168-generic 4.4.167
RelatedPackageVersions:
linux-restricted-modules-4.4.0-142-generic N/A
linux-backports-modules-4.4.0-142-generic N/A
linux-firmware 1.157.21
Tags: xenial
Uname: Linux 4.4.0-142-generic x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom davfs2 dip docker lpadmin plugdev sambashare sudo
_MarkForUpload: True
dmi.bios.date: 05/10/2016
dmi.bios.vendor: LENOVO
dmi.bios.version: N1EET52W (1.26 )
dmi.board.asset.tag: Not Available
dmi.board.name: 20EQS2HW00
dmi.board.vendor: LENOVO
dmi.board.version: SDK0J40697 WIN
dmi.chassis.asset.tag: No Asset Information
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: None
dmi.modalias: dmi:bvnLENOVO:bvrN1EET52W(1.26):bd05/10/2016:svnLENOVO:pn20EQS2HW00:pvrThinkPadP50:rvnLENOVO:rn20EQS2HW00:rvrSDK0J40697WIN:cvnLENOVO:ct10:cvrNone:
dmi.product.name: 20EQS2HW00
dmi.product.version: ThinkPad P50
dmi.sys.vendor: LENOVO
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 1815122
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.