Re: [Patch v9 10/12] perf/x86/intel: Update dyn_constranit base on PEBS event precise level

[Mi, Dapeng]

On 11/7/2025 4:28 PM, Peter Zijlstra wrote:
> On Fri, Nov 07, 2025 at 02:11:09PM +0800, Mi, Dapeng wrote:
>> On 11/6/2025 10:52 PM, Peter Zijlstra wrote:
>>> On Wed, Oct 29, 2025 at 06:21:34PM +0800, Dapeng Mi wrote:
>>>> arch-PEBS provides CPUIDs to enumerate which counters support PEBS
>>>> sampling and precise distribution PEBS sampling. Thus PEBS constraints
>>>> should be dynamically configured base on these counter and precise
>>>> distribution bitmap instead of defining them statically.
>>>>
>>>> Update event dyn_constraint base on PEBS event precise level.
>>> What happened to this:
>>>
>>>   https://lore.kernel.org/all/e0b25b3e-aec0-4c43-9ab2-907186b56c71@xxxxxxxxxxxxxxx/
>> About the issue, Kan ever posted a patch to mitigate the risk, but it seems
>> the patch is not merged yet.
>>
>> https://lore.kernel.org/all/20250512175542.2000708-1-kan.liang@xxxxxxxxxxxxxxx/
>>
> Clearly it became a victim of some scatter brained maintainer or
> something.
>
> Let me stick that near this set and go read the last few patches.

Thanks.


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