[LNL][ARL] intel-lpmd: Unsupported platform
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Assessment
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Newbie friendliness
- 42/100
- Issue type
- Bug
- Clarity
- Mostly clear
- Activity status
- Quiet
- Tech stack
- c
- Domain
- operating-systems
Research direction
Start at the lpmd_main entry point and trace the platform and CPU detection that produces the logged family:model values for ARL and LNL. Compare those values with the project's supported-platform handling, then verify that the reported CPUs no longer fail as unsupported on the stated Ubuntu kernel.
Written by the indexing model from the issue text.
Description
ARL:
6.10-1005-oem kernel on Ubuntu 24.04
intel-lpmd fails to start as following:
[1720579420][DEBUG]lpmd_main begin
[1720579420][DEBUG]CPUID 0x00000000: eax = 0x00000023 ebx = 0x756e6547 ecx = 0x6c65746e edx = 0x49656e69
[1720579420][DEBUG]CPUID 0x00000001: eax = 0x000c0660 ebx = 0x00800800 ecx = 0x7ffafbff edx = 0xbfebfbff
[1720579420][INFO]35 CPUID levels; family:model:stepping 0x6:c6:0 (6:198:0)
[1720579420][INFO]Unsupported platform
[1720579420][INFO]Unsupported CPU type
LNL:
[1720589641][DEBUG]lpmd_main begin
[1720589641][DEBUG]CPUID 0x00000000: eax = 0x00000023 ebx = 0x756e6547 ecx = 0x6c65746e edx = 0x49656e69
[1720589641][DEBUG]CPUID 0x00000001: eax = 0x000b06d0 ebx = 0x08800800 ecx = 0x7ffafbff edx = 0xbfebfbff
[1720589641][INFO]35 CPUID levels; family:model:stepping 0x6:bd:0 (6:189:0)
[1720589641][INFO]Unsupported platform
[1720589641][INFO]Unsupported CPU type
- 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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- Open a pull request that references the issue number.
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