Messages in this thread | | | Date | Wed, 18 Jan 2023 14:19:23 +0530 | From | Viresh Kumar <> | Subject | Re: [PATCH v2] cpufreq: Register with perf domain before |
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On 18-01-23, 12:47, Vincent Wang wrote: > From: Vincent Wang <vincentwang3@lenovo.com> > > We found the following issue during kernel boot on android phone: > > [ 1.325272][ T1] cpu cpu0: EM: created perf domain > [ 1.329317][ T1] cpu cpu4: EM: created perf domain > [ 1.337597][ T76] pd_init: no EM found for CPU7 > [ 1.350849][ T1] cpu cpu7: EM: created perf domain > > pd init for cluster2 is executed in a kworker thread and > is earlier than the perf domain creation for cluster2.
Can you please give detail of the exact code path, for mainline kernel ? I am not sure which kworker thread are you talking about here.
> pd_init() is called from the cpufreq notification of > CPUFREQ_CREATE_POLICY in cpufreq_online(), which is earlier > than that cpufreq_driver->register_em() is called.
-- viresh
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