intel_lpmd[4038]: Open /proc/sys/kernel/sched_itmt_enabled failed in 6.12 kernel
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Nobody has claimed this yet.
Assessment
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Newbie friendliness
- 42/100
- Issue type
- Bug
- Clarity
- Needs clarification
- Activity status
- Quiet
- Tech stack
- c, linux
- Domain
- operating-systems
Research direction
Start by reproducing the intel_lpmd.service output on a 6.12 kernel, focusing on the failed /proc/sys/kernel/sched_itmt_enabled access and the configuration-file lookup messages. Review how the daemon selects CPU-specific XML files and determine what behavior should be considered complete for Alder Lake and Meteor Lake configurations.
Written by the indexing model from the issue text.
Description
● intel_lpmd.service - Intel Linux Energy Optimizer (lpmd) Service
Loaded: loaded (/usr/lib/systemd/system/intel_lpmd.service; enabled; preset: disabled)
Active: active (running) since Mon 2024-11-25 13:17:11 +01; 12s ago
Invocation: c820f3ea5eb845c999bab3eeef8a988b
Main PID: 4038 (intel_lpmd)
Tasks: 6 (limit: 38001)
Memory: 1.2M (peak: 2.7M)
CPU: 28ms
CGroup: /system.slice/intel_lpmd.service
└─4038 /usr/bin/intel_lpmd --systemd --dbus-enable
Nov 25 13:17:11 lp systemd[1]: Starting Intel Linux Energy Optimizer (lpmd) Service...
Nov 25 13:17:11 lp intel_lpmd[4038]: Looking for config file /etc/intel_lpmd/intel_lpmd_config_F6_M154_T15.xml
Nov 25 13:17:11 lp intel_lpmd[4038]: Looking for config file /etc/intel_lpmd/intel_lpmd_config_F6_M154.xml
Nov 25 13:17:11 lp intel_lpmd[4038]: Reading configuration file /etc/intel_lpmd/intel_lpmd_config.xml
Nov 25 13:17:11 lp intel_lpmd[4038]: Open /proc/sys/kernel/sched_itmt_enabled failed
Nov 25 13:17:11 lp systemd[1]: Started Intel Linux Energy Optimizer (lpmd) Service.
thats error didnt showed before 6.12 kernel , & why those meteor lake configs in my alderlake platform ? even thogh i delete them , the daemon still search for them !! , is this a normal behaviour ? , what i would expect is to autodiscover the cpu in use & apply its correspounding config.
- Dominant language
- C
- Stars
- 225
- Forks
- 33
- Avg merge
- 2m
- Merged PRs (30d)
- 2
Getting set up
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First steps
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