configs: enable CONFIG_ANON_VMA_NAME
Nobody has claimed this yet.
Assessment
- Difficulty
- 3/5
- Estimated time
- 1-2 days
- Newbie friendliness
- 45/100
- Issue type
- Feature
- Clarity
- Mostly clear
- Activity status
- Stale
- Tech stack
- linux
- Domain
- embedded-iot, operating-systems
Research direction
Start by locating the Raspberry Pi 5 kernel configuration and checking how CONFIG_ANON_VMA_NAME is set during the kernel build. Verify the resulting /proc/config.gz reports the option enabled and that the PR_SET_VMA_ANON_NAME feature is available on the affected device.
Written by the indexing model from the issue text.
Description
Describe the bug
PR_SET_VMA_ANON_NAME is a useful linux feature that allows you to give a name to a mapped memory range. It has been generally available in desktop linux since kernel 5.17. Its support, however, requires enabling CONFIG_ANON_VMA_NAME at kernel compile time, and it is disabled on Raspberry Pi 5 kernel.
It would be nice to see it enabled.
Steps to reproduce the behaviour
sudo modprobe configs
zcat /proc/config.gz | grep CONFIG_ANON_VMA_NAME
# CONFIG_ANON_VMA_NAME is not set
Device (s)
Raspberry Pi 5
System
cat /etc/rpi-issue:
Raspberry Pi reference 2024-11-19
Generated using pi-gen, https://github.com/RPi-Distro/pi-gen, 891df1e21ed2b6099a2e6a13e26c91dea44b34d4, stage2
vcgencmd version:
2025/05/08 15:13:17
Copyright (c) 2012 Broadcom
version 69471177 (release) (embedded)
uname -a:
Linux ninika-rpi 6.12.34+rpt-rpi-v8 #1 SMP PREEMPT Debian 1:6.12.34-1+rpt1~bookworm (2025-06-26) aarch64 GNU/Linux
Logs
No response
Additional context
No response
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- C
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- Merged PRs (30d)
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