Public bug reported:
[Impact]
The cppc-cpufreq driver fails to initialize on ThunderX2 systems, which is used
to communicate power configuration to firmware.
[Test Case]
sudo modprobe cppc-cpufreq || echo "Fail"
[Regression Risk]
The fix consists of clean cherry-picks from upstream that are restricted to a
single driver. Regressions would therefore be restricted to platforms that
support ACPI CPPC power management.
** Affects: linux (Ubuntu)
Importance: Medium
Assignee: dann frazier (dannf)
Status: In Progress
** Affects: linux (Ubuntu Artful)
Importance: Undecided
Status: New
** Affects: linux (Ubuntu Bionic)
Importance: Medium
Assignee: dann frazier (dannf)
Status: In Progress
** Also affects: linux (Ubuntu Artful)
Importance: Undecided
Status: New
** Also affects: linux (Ubuntu Bionic)
Importance: Medium
Assignee: dann frazier (dannf)
Status: In Progress
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Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1745007
Title:
Support cppc-cpufreq driver on ThunderX2 systems
Status in linux package in Ubuntu:
In Progress
Status in linux source package in Artful:
New
Status in linux source package in Bionic:
In Progress
Bug description:
[Impact]
The cppc-cpufreq driver fails to initialize on ThunderX2 systems, which is
used to communicate power configuration to firmware.
[Test Case]
sudo modprobe cppc-cpufreq || echo "Fail"
[Regression Risk]
The fix consists of clean cherry-picks from upstream that are restricted to a
single driver. Regressions would therefore be restricted to platforms that
support ACPI CPPC power management.
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1745007/+subscriptions
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