Chromium crashes RPiOS when 6.12.44 PREEMPT_RT kernel used
Nobody has claimed this yet.
Assessment
- Difficulty
- 5/5
- Estimated time
- Over a week
- Newbie friendliness
- 25/100
- Issue type
- Bug
- Clarity
- Mostly clear
- Activity status
- Stale
- Tech stack
- c, linux, raspberry-pi
- Domain
- embedded-iot, operating-systems
Research direction
Start by reproducing the crash on a Raspberry Pi 5 with the 6.12.44 PREEMPT_RT kernel and Chromium, then compare it with 6.12.34 using the commits listed in the report. Bisect the range between those kernel versions and collect crash logs; done means identifying the regression and verifying the affected Chromium workload no longer crashes.
Written by the indexing model from the issue text.
Description
Describe the bug
Somewhere between kernels 6.12.34 and 6.12.44, a problem was introduced in PREEMPT_RT builds.
Both Bookworm and Trixie exhibit the symptom:
6.12.44: Chromium, after visiting several web sites, totally crashes up-to-date RPiOS running on a Raspberry Pi 5.
6.12.34: No problems encountered.
Commits:
6.12.44: eb87a2027c0766c9f670d7c8fa68b86170a0d035
6.12.34: 8f77e03530f65209a377d25023e912b288e039cd
Steps to reproduce the behaviour
Replace 6.12.34 PREEMPT_RT kernel with 6.12.44 PREEMPT_RT kernel.
Visit several web sites with Chromium.
Device (s)
Raspberry Pi 5
System
2025-05-13-raspios-bookworm-arm64.img (updated)
root@raspberrypi:~# cat /etc/os-release
PRETTY_NAME="Debian GNU/Linux 12 (bookworm)"
NAME="Debian GNU/Linux"
VERSION_ID="12"
VERSION="12 (bookworm)"
VERSION_CODENAME=bookworm
ID=debian
HOME_URL="https://www.debian.org/"
SUPPORT_URL="https://www.debian.org/support"
BUG_REPORT_URL="https://bugs.debian.org/"
root@raspberrypi:~# vcgencmd version
2025/08/20 16:21:58
Copyright (c) 2012 Broadcom
version cd866525 (release) (embedded)
root@raspberrypi:~# uname -a
Linux raspberrypi 6.12.44+rpt-rpi-2712 #1 SMP PREEMPT_RT Tue Sep 2 23:01:23 CDT 2025 aarch64 GNU/Linux
Logs
No response
Additional context
No response
- Dominant language
- C
- Stars
- 13.2k
- Forks
- 5.5k
- Avg merge
- 2d 21h
- Merged PRs (30d)
- 21
Contributor guide
No contributing guide indexed for this repository
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
More from raspberrypi/linux
-
Difficulty 2/5 1-3 hours Newbie friendliness 68/100
raspberrypi/linux#7415 · 2 comments · 1 reaction ·
-
rp1-cfe doesn't forward V4L2_EVENT_SOURCE_CHANGE event from csi-2 sensor driver to userspace app Open
Difficulty 2/5 1-3 hours Newbie friendliness 72/100
raspberrypi/linux#7399 · 1 comment ·
-
Difficulty 1/5 Under an hour Newbie friendliness 82/100
raspberrypi/linux#7357 · 1 comment ·
-
Difficulty 2/5 1-3 hours Newbie friendliness 68/100
raspberrypi/linux#7054 · 2 comments ·
-
Difficulty 4/5 3-5 days Newbie friendliness 48/100
raspberrypi/linux#7634 · 8 comments · 1 reaction ·
All issues in raspberrypi/linux
Similar issues
-
Difficulty 2/5 1-3 hours Newbie friendliness 88/100
zephyrproject-rtos/zephyr#119726 ·
-
[Bounty proposal] fix(web): memory insights count an evening memory on the next day ($25 proposed) Open
Difficulty 2/5 1-3 hours Newbie friendliness 84/100
BasedHardware/omi#15320 ·
-
[adam] AdamNet network read doesn't cap to MAX_ADAM_PACKET_LEN, overflows client receive buffers Open
Difficulty 2/5 1-3 hours Newbie friendliness 88/100
FujiNetWIFI/fujinet-firmware#1649 · 2 comments ·
-
Difficulty 2/5 1-3 hours Newbie friendliness 68/100
HarbourMasters/Shipwright#7229 ·
-
Difficulty 2/5 1-3 hours Newbie friendliness 72/100
riscv-software-src/riscv-isa-sim#2435 · 1 comment ·