Switching user freezes system
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
linux (Ubuntu) |
Expired
|
High
|
Unassigned |
Bug Description
Just doing this my system freezes:
1. Click on the top right gear icon.
2. Select a different user account.
Login screen appears briefly, then black screen and the system is death:
BUG: unable to handle kernel NULL pointer dereference at 0000000000000248
IP: [<ffffffffc0258
PGD 0
Oops: 0000 [#1] SMP
Modules linked in: ...
(See attached syslog for more)
ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: linux-image-
ProcVersionSign
Uname: Linux 4.4.0-22-generic x86_64
ApportVersion: 2.20.1-0ubuntu2
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/
/dev/snd/
CurrentDesktop: Unity
Date: Tue May 24 08:54:13 2016
HibernationDevice: RESUME=
InstallationDate: Installed on 2015-06-29 (329 days ago)
InstallationMedia: Ubuntu 15.04 "Vivid Vervet" - Release amd64 (20150422)
MachineType: TOSHIBA SATELLITE S50-B
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=
RelatedPackageV
linux-
linux-
linux-firmware 1.157
SourcePackage: linux
UpgradeStatus: Upgraded to xenial on 2016-04-22 (31 days ago)
dmi.bios.date: 12/02/2014
dmi.bios.vendor: INSYDE Corp.
dmi.bios.version: 2.00
dmi.board.
dmi.board.name: Type2 - Board Product Name1
dmi.board.vendor: Type2 - Board Vendor Name1
dmi.board.version: Type2 - Board Version
dmi.chassis.
dmi.chassis.type: 10
dmi.chassis.vendor: OEM Chassis ManuFacturer
dmi.chassis.
dmi.modalias: dmi:bvnINSYDECo
dmi.product.name: SATELLITE S50-B
dmi.product.
dmi.sys.vendor: TOSHIBA
tags: | added: kernel-fixed-upstream |
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