Public bug reported:
Ubuntu 24.04 experienced a complete graphical freeze while running
kernel 6.8.0-138-generic.
The system became completely unresponsive. The mouse pointer was frozen
and I was unable to interact with the desktop, so a hard reboot was
required.
After rebooting, I checked the kernel journal from the previous boot.
The final kernel messages immediately before the forced reboot are:
Aug 24 15:59:52 kernel: amdgpu 0000:2a:00.0: amdgpu: [gfxhub0] retry page fault
(src_id:0 ring:0 vmid:3 pasid:32774, for process firefox-bin pid 37166 thread
firefox:cs0 pid 37250)
Aug 24 15:59:52 kernel: amdgpu 0000:2a:00.0: amdgpu: in page starting at
address 0x0000800113480000 from IH client 0x1b (UTCL2)
Aug 24 15:59:52 kernel: amdgpu 0000:2a:00.0: amdgpu:
VM_L2_PROTECTION_FAULT_STATUS:0x00341051
There are no later kernel messages in that boot.
Firefox was running when the freeze occurred. The journal therefore
mentions firefox-bin, but I cannot determine whether Firefox triggered
the GPU fault or was merely the process using the affected GPU context.
The system had to be rebooted manually at approximately 16:00 local
time.
Expected result:
The desktop and GPU should continue operating normally.
Actual result:
The graphical session/system froze completely and required a hard
reboot.
System information:
Ubuntu: 24.04
Desktop: GNOME / Wayland
Kernel: 6.8.0-138-generic x86_64
Package: linux-image-6.8.0-138-generic 6.8.0-138.138
I generated a full Apport report for the linux package after rebooting.
I am also attaching the complete kernel journal from the previous boot,
which contains the GPU fault immediately before the system became
unresponsive.
Attachment:
- kernel-freeze-2026-08-24.log
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
** Attachment added: "kernel-freeze-2026-08-24.log"
https://bugs.launchpad.net/bugs/2164910/+attachment/5994909/+files/kernel-freeze-2026-08-24.log
--
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.
https://bugs.launchpad.net/bugs/2164910
Title:
Ubuntu 24.04 freezes completely with amdgpu VM_L2_PROTECTION_FAULT on
kernel 6.8.0-138-generic
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2164910/+subscriptions
--
ubuntu-bugs mailing list
[email protected]
https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
