Public bug reported:
I'm running Ubuntu 24.10 Oracular on a Lenovo X1 G6 Yoga with an Intel
iGPU.
Under normal desktop usage (e.g. Chrome, GIMP, PyCharm), the system
becomes unresponsive, eventually forcing me to "Force Quit" all windows.
SSH remains available.
>From the logs, the crash appears to be in the Xe DRM kernel driver:
BUG: kernel NULL pointer dereference, address: 0000000000000014
RIP: 0010:xe_pt_check_kill+0x79/0xf0 [xe]
The crash is triggered by the Xwayland process. Additional graphics-
related logs show transient GPU context failures.
The issue appears related to memory access in the `xe` kernel module.
I am guessing I have seen this issue every few weeks. In at least one
instance, it seemed to be easily repeated with the same window dialogue
actions, but I no longer have details from that incident.
**System Information:**
- Ubuntu 24.10 (Oracular)
- Kernel: Linux imac-X1-Yoga 6.11.0-21-generic #21-Ubuntu SMP PREEMPT_DYNAMIC
Wed Feb 19 16:50:40 UTC 2025 x86_64 x86_64 x86_64 GNU/Linux
- Xe DRM driver active
- GNOME 45, Wayland session
- Intel GPU 00:02.0 VGA compatible controller: Intel Corporation TigerLake GT2
[Iris Xe Graphics] (rev 01)
**Steps to reproduce**:
- Boot normally into Wayland session
- Launch Chrome and maybe some other tools (Slack, GIMP, PyCharm in this case)
- After some use, overnight sleeps, UI crashes with system logs showing Xe
driver errors
**Attachments**:
Pulled these via scp from my other laptop before restarting it this time.
os-release.txt 100% 397 44.3KB/s 00:00
gpu-lspci.txt 100% 204 8.3KB/s 00:00
dmesg.txt 100% 260KB 3.4MB/s 00:00
uname.txt 100% 128 18.9KB/s 00:00
journalctl-full.txt 100% 2368KB 11.3MB/s 00:00
journalctl-errors.txt 100% 1821 130.4KB/s 00:00
lsmod.txt 100% 507 58.4KB/s 00:00
gnome-shell.log 100% 70KB 4.3MB/s 00:00
dmesg > ~/bugreport-xe-crash/dmesg.txt
journalctl -b > ~/bugreport-xe-crash/journalctl-full.txt
journalctl -b -p 0..3 > ~/bugreport-xe-crash/journalctl-errors.txt
journalctl -xe _COMM=gnome-shell > ~/bugreport-xe-crash/gnome-shell.log
lspci -nnk | grep -A3 VGA > ~/bugreport-xe-crash/gpu-lspci.txt
lsmod | grep xe > ~/bugreport-xe-crash/lsmod.txt
uname -a > ~/bugreport-xe-crash/uname.txt
cat /etc/os-release > ~/bugreport-xe-crash/os-release.txt
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
** Attachment added: "tar file with debug files described above"
https://bugs.launchpad.net/bugs/2106628/+attachment/5870494/+files/xe-bugreport.tar
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https://bugs.launchpad.net/bugs/2106628
Title:
Kernel NULL pointer dereference in xe_pt_check_kill with Xe DRM driver
(Ubuntu 24.10)
Status in linux package in Ubuntu:
New
Bug description:
I'm running Ubuntu 24.10 Oracular on a Lenovo X1 G6 Yoga with an Intel
iGPU.
Under normal desktop usage (e.g. Chrome, GIMP, PyCharm), the system
becomes unresponsive, eventually forcing me to "Force Quit" all
windows. SSH remains available.
From the logs, the crash appears to be in the Xe DRM kernel driver:
BUG: kernel NULL pointer dereference, address: 0000000000000014
RIP: 0010:xe_pt_check_kill+0x79/0xf0 [xe]
The crash is triggered by the Xwayland process. Additional graphics-
related logs show transient GPU context failures.
The issue appears related to memory access in the `xe` kernel module.
I am guessing I have seen this issue every few weeks. In at least one
instance, it seemed to be easily repeated with the same window
dialogue actions, but I no longer have details from that incident.
**System Information:**
- Ubuntu 24.10 (Oracular)
- Kernel: Linux imac-X1-Yoga 6.11.0-21-generic #21-Ubuntu SMP PREEMPT_DYNAMIC
Wed Feb 19 16:50:40 UTC 2025 x86_64 x86_64 x86_64 GNU/Linux
- Xe DRM driver active
- GNOME 45, Wayland session
- Intel GPU 00:02.0 VGA compatible controller: Intel Corporation TigerLake
GT2 [Iris Xe Graphics] (rev 01)
**Steps to reproduce**:
- Boot normally into Wayland session
- Launch Chrome and maybe some other tools (Slack, GIMP, PyCharm in this
case)
- After some use, overnight sleeps, UI crashes with system logs showing Xe
driver errors
**Attachments**:
Pulled these via scp from my other laptop before restarting it this time.
os-release.txt 100% 397 44.3KB/s 00:00
gpu-lspci.txt 100% 204 8.3KB/s 00:00
dmesg.txt 100% 260KB 3.4MB/s 00:00
uname.txt 100% 128 18.9KB/s 00:00
journalctl-full.txt 100% 2368KB 11.3MB/s 00:00
journalctl-errors.txt 100% 1821 130.4KB/s 00:00
lsmod.txt 100% 507 58.4KB/s 00:00
gnome-shell.log 100% 70KB 4.3MB/s 00:00
dmesg > ~/bugreport-xe-crash/dmesg.txt
journalctl -b > ~/bugreport-xe-crash/journalctl-full.txt
journalctl -b -p 0..3 > ~/bugreport-xe-crash/journalctl-errors.txt
journalctl -xe _COMM=gnome-shell > ~/bugreport-xe-crash/gnome-shell.log
lspci -nnk | grep -A3 VGA > ~/bugreport-xe-crash/gpu-lspci.txt
lsmod | grep xe > ~/bugreport-xe-crash/lsmod.txt
uname -a > ~/bugreport-xe-crash/uname.txt
cat /etc/os-release > ~/bugreport-xe-crash/os-release.txt
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