Messages in this thread | | | Subject | Re: [PATCH v6 3/7] powercap/drivers/dtpm: Simplify the dtpm table | From | Daniel Lezcano <> | Date | Fri, 26 Nov 2021 18:40:26 +0100 |
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On 26/11/2021 18:08, Doug Smythies wrote: > Hi Daniel, > > This patch introduces a regression, at least on my test system. > I can no longer change CPU frequency scaling drivers, for example > from intel_cpufreq (A.K.A intel_pstate in passive mode) to intel_pstate > (A.K.A. active mode). The task just hangs forever. > > I bisected the kernel and got this commit as the result. > As a double check, I reverted this commit: > 7a89d7eacf8e84f2afb94db5ae9d9f9faa93f01c > on kernel 5.16-rc2 and the issue was resolved. > > While your email is fairly old, I observe that it was only included as of > kernel 5.16-rc1.
Could it be related to and fixed by:
https://lore.kernel.org/all/20211108062345.273855-1-daniel.lezcano@linaro.org/
?
> Command Example that never completes: > > $ echo passive | sudo tee /sys/devices/system/cpu/intel_pstate/status > > syslog excerpt attached. > > ... Doug
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