Messages in this thread | | | Date | Thu, 26 May 2022 08:30:21 -0700 | Subject | Re: [PATCH] x86/platform/uv: Dont use smp_processor_id while preemptable | From | Dave Hansen <> |
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On 5/20/22 13:37, Mike Travis wrote: > To avoid a "BUG: using smp_processor_id() in preemptible" debug > warning message, disable preemption around use of the processor id.
I'm sure this gets rid of the warning. But, could you please take a quick look at the callers and ensure that they can handle if this read comes from another CPU?
In other words, what would actually go wrong if uv_read_rtc() got preempted in this region? What would this actually fix?
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