** Changed in: ubuntu-power-systems
Status: In Progress => Incomplete
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https://bugs.launchpad.net/bugs/1746174
Title:
Error in CPU frequency reporting when nominal and min pstates are same
(cpufreq)
Status in The Ubuntu-power-systems project:
Incomplete
Status in linux package in Ubuntu:
In Progress
Status in linux source package in Artful:
In Progress
Status in linux source package in Bionic:
In Progress
Bug description:
== Comment: #0 - Shilpasri G. Bhat
+++ This bug was initially created as a clone of Bug #163527 +++
---Problem Description---
Error in CPU frequency reporting when nominal and min pstates are same
The patch for this issue is accepted to linux-next as
3fa4680b860bf48b437d6a2c039789c4abe202ae
cpufreq: powernv: Dont assume distinct pstate values for nominal and pmin
Some OpenPOWER boxes can have same pstate values for nominal and
pmin pstates. In these boxes the current code will not initialize
'powernv_pstate_info.min' variable and result in erroneous CPU
frequency reporting. This patch fixes this problem.
Fixes: 09ca4c9b5958 (cpufreq: powernv: Replacing pstate_id with frequency
table index)
Reported-by: Alvin Wang <wan...@tw.ibm.com>
Signed-off-by: Shilpasri G Bhat <shilpa.b...@linux.vnet.ibm.com>
Acked-by: Viresh Kumar <viresh.ku...@linaro.org>
Cc: 4.8+ <sta...@vger.kernel.org> # 4.8+
Signed-off-by: Rafael J. Wysocki <rafael.j.wyso...@intel.com>
https://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm.git/commit/drivers/cpufreq/powernv-cpufreq.c?h=linux-next&id=3fa4680b860bf48b437d6a2c039789c4abe202ae
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