| 2023-01-04 00:32:35 |
quanxian |
description |
[Bug Description]
A new issue that all \sys\devices\uncore_* devices are missing on SPR with latest upstream kernel v6.1+(on top of commit f9ff5644bcc0). The issue is not seen with upstream kernel v6.0.
A bisect which pointed to this commit as guilty:
(v6.2-rc1) 07eab0901ede efi/x86: Remove EfiMemoryMappedIO from E820 map
Have verified that by reverting this commit only, the missing uncore devices are available again on SPR.
Reproduce steps:
Update kernel to latest upstream v6.2-rc1, and boot on SPR.
[HW/SW Information]
Target Kernel: 6.2
Target Release: 23.10
Commits:
patches(https://lore.kernel.org/lkml/20221129191023.936738-1-kan.liang@linux.intel.com/) applied on same SPR.
Platform: Sapphire Rapids
[Business Justification]
Bug fixing |
[Bug Description]
A new issue that all \sys\devices\uncore_* devices are missing on SPR with latest upstream kernel v6.1+(on top of commit f9ff5644bcc0). The issue is not seen with upstream kernel v6.0.
A bisect which pointed to this commit as guilty:
(v6.2-rc1) 07eab0901ede efi/x86: Remove EfiMemoryMappedIO from E820 map
Have verified that by reverting this commit only, the missing uncore devices are available again on SPR.
Reproduce steps:
Update kernel to latest upstream v6.2-rc1, and boot on SPR.
[HW/SW Information]
Target Kernel: 6.2
Target Release: 23.04
Commits:
patches(https://lore.kernel.org/lkml/20221129191023.936738-1-kan.liang@linux.intel.com/) applied on same SPR.
Platform: Sapphire Rapids
[Business Justification]
Bug fixing |
|
