Public bug reported:
This is a public version of https://bugs.launchpad.net/bugs/2049792
Backport: [SRF] performance: hwmon: (coretemp) Fix core count
limitation (merged upstream in 6.9) to jammy
[Description]
coretemp driver supports at most 128 cores per package. Cores higher than 128
will lose their core temperature information.
Some SRF SKUs have more than 128 cores per package and triggers the issue.
[Fix]
A series of patch is part of this improvement:
1a793caf6f69 hwmon: (coretemp) Use dynamic allocated memory for core temp_data
18b24a5f9ca3 hwmon: (coretemp) Remove redundant temp_data->is_pkg_data
326241f71f3d hwmon: (coretemp) Split package temp_data and core temp_data
b0b01414a261 hwmon: (coretemp) Abstract core_temp helpers
87eb801925a0 hwmon: (coretemp) Remove redundant pdata->cpu_map[]
18d8f5583388 hwmon: (coretemp) Replace sensor_device_attribute with
device_attribute
25f8e01baa05 hwmon: (coretemp) Remove unnecessary dependency of array index
c8c2074020a8 hwmon: (coretemp) Introduce enum for attr index
And some patch are required to make the backporting clean:
34cf8c657cf03 hwmon: (coretemp) Enlarge per package core count limit
fdaf0c8629d45 hwmon: (coretemp) Fix bogus core_id to attr name mapping
4e440abc89458 hwmon: (coretemp) Fix out-of-bounds memory access
a2930f6dc90f0 hwmon: (coretemp) Delete an obsolete comment
6c2b659913ad9 hwmon: (coretemp) Delete tjmax debug message
0f8b916bc5b5d hwmon: (coretemp) avoid RDMSR interrupts to isolated CPUs
fae30e3c203e0 hwmon: (coretemp) Add support for dynamic ttarget
c0c67f8761cec hwmon: (coretemp) Add support for dynamic tjmax
2bc0e6d07ee50 hwmon: (coretemp) rearrange tjmax handing code
5c0e64dde80ff hwmon: (coretemp) Remove obsolete temp_data->valid
Only 5c0e64dde80ff has to be modified as it's delete a variable which changed
type
because of a refactoring.
[Test]
Verify on specific hardware if we can read temperature accordingly.
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
** Affects: linux (Ubuntu Jammy)
Importance: Undecided
Status: New
** Also affects: linux (Ubuntu Jammy)
Importance: Undecided
Status: New
--
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/2058668
Title:
[SRF] performance: hwmon: (coretemp) Fix core count limitation
Status in linux package in Ubuntu:
New
Status in linux source package in Jammy:
New
Bug description:
This is a public version of https://bugs.launchpad.net/bugs/2049792
Backport: [SRF] performance: hwmon: (coretemp) Fix core count
limitation (merged upstream in 6.9) to jammy
[Description]
coretemp driver supports at most 128 cores per package. Cores higher than
128 will lose their core temperature information.
Some SRF SKUs have more than 128 cores per package and triggers the issue.
[Fix]
A series of patch is part of this improvement:
1a793caf6f69 hwmon: (coretemp) Use dynamic allocated memory for core temp_data
18b24a5f9ca3 hwmon: (coretemp) Remove redundant temp_data->is_pkg_data
326241f71f3d hwmon: (coretemp) Split package temp_data and core temp_data
b0b01414a261 hwmon: (coretemp) Abstract core_temp helpers
87eb801925a0 hwmon: (coretemp) Remove redundant pdata->cpu_map[]
18d8f5583388 hwmon: (coretemp) Replace sensor_device_attribute with
device_attribute
25f8e01baa05 hwmon: (coretemp) Remove unnecessary dependency of array index
c8c2074020a8 hwmon: (coretemp) Introduce enum for attr index
And some patch are required to make the backporting clean:
34cf8c657cf03 hwmon: (coretemp) Enlarge per package core count limit
fdaf0c8629d45 hwmon: (coretemp) Fix bogus core_id to attr name mapping
4e440abc89458 hwmon: (coretemp) Fix out-of-bounds memory access
a2930f6dc90f0 hwmon: (coretemp) Delete an obsolete comment
6c2b659913ad9 hwmon: (coretemp) Delete tjmax debug message
0f8b916bc5b5d hwmon: (coretemp) avoid RDMSR interrupts to isolated CPUs
fae30e3c203e0 hwmon: (coretemp) Add support for dynamic ttarget
c0c67f8761cec hwmon: (coretemp) Add support for dynamic tjmax
2bc0e6d07ee50 hwmon: (coretemp) rearrange tjmax handing code
5c0e64dde80ff hwmon: (coretemp) Remove obsolete temp_data->valid
Only 5c0e64dde80ff has to be modified as it's delete a variable which changed
type
because of a refactoring.
[Test]
Verify on specific hardware if we can read temperature accordingly.
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2058668/+subscriptions
--
Mailing list: https://launchpad.net/~kernel-packages
Post to : kernel-packages@lists.launchpad.net
Unsubscribe : https://launchpad.net/~kernel-packages
More help : https://help.launchpad.net/ListHelp
