This bug is missing log files that will aid in diagnosing the problem.
>From a terminal window please run:
apport-collect 1650899
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/1650899
Title:
ubuntu-bug linux - BUG: unable to handle kernel NULL pointer
dereference at 0000000000000248
Status in linux package in Ubuntu:
Incomplete
Bug description:
Hi all,
I have a bugreport on Linux. After I logout als a adminstrator in
Linux Mint v18.1 my system crashed with a bug listing on screen. This
also happened a second time when I tried to switch to another user
account.
BUG: unable to handle kernel NULL pointer dereference at 0000000000000248
IP: [<fff...>] amdgpu_vm_grab_id+0x122/0x310 [amdgpu]
PDG 0
Oops 0000 [#1] SMP
Modules linked in: {long list ...}
CPU: 1 PID: 182 Comm gfx Tainted: G W 4.4.0-31-generic #50 Ubuntu
Hardware name: Dell Inc. Inspiron 5567/05VRRG, BIOS 1.0.2 09/09/2016
...
Call Trace:
[<fff...>] amdgpu_ib_schedule+0x90/0x390 [amdgpu]
{and a lot more...}
...
The machine I bought is a: Dell Inspiron 5000 series 5567
CPU - 7e generatie Intel® Core™ i7–7500U processor (4 MB cache, 2,70 GHz)
OS - Windows 10 Home (64-bits) {replaced it with Linux Mint 18.1 "Serena",
based on Ubuntu 16.04}
RAM - 8 GB Single Channel DDR4 2.400 MHz, tot 16 GB
HDD - 256 GB Solid State-harde schijf
Graphics - AMD Radeon™ R7 M445 Graphics 4G GDDR5
Installed Linux Mint 18.1 in Legacy mode & with Secure Boot disabled.
Can someone help me out? If you need some additional information which
helps to solve the problem, please let me know.
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