On 6/25/24 2:54 AM, Thomas Gleixner wrote:
> On Tue, Jun 25 2024 at 00:41, Shrikanth Hegde wrote:
>> On 6/24/24 1:44 AM, Thomas Gleixner wrote:
>>> Right. So changing it not to online a thread when the full core is
>>> offline should not really break stuff.
>>>
>>> OTH, the mechanism to figure t
On Tue, Jun 25 2024 at 00:41, Shrikanth Hegde wrote:
> On 6/24/24 1:44 AM, Thomas Gleixner wrote:
>> Right. So changing it not to online a thread when the full core is
>> offline should not really break stuff.
>>
>> OTH, the mechanism to figure that out on x86 is definitely different and
>> more c
On 6/24/24 1:44 AM, Thomas Gleixner wrote:
> Michael!
>
> On Thu, Jun 13 2024 at 21:34, Michael Ellerman wrote:
>> IIUIC the regression was in the ppc64_cpu userspace tool, which switched
>> to using the new kernel interface without taking into account the way it
>> behaves.
>>
>> Or are you sa
Michael!
On Thu, Jun 13 2024 at 21:34, Michael Ellerman wrote:
> IIUIC the regression was in the ppc64_cpu userspace tool, which switched
> to using the new kernel interface without taking into account the way it
> behaves.
>
> Or are you saying the kernel behaviour changed on x86 after the powerp
On Thu, Jun 13, 2024 at 09:34:10PM GMT, Michael Ellerman wrote:
> "Nysal Jan K.A." writes:
> > From: "Nysal Jan K.A"
> >
> > After the addition of HOTPLUG_SMT support for PowerPC [1] there was a
> > regression reported [2] when enabling SMT.
>
> This implies it was a kernel regression. But it ca
On Thu, Jun 13, 2024 at 09:34:10PM +1000, Michael Ellerman wrote:
> "Nysal Jan K.A." writes:
> > From: "Nysal Jan K.A"
> >
> > After the addition of HOTPLUG_SMT support for PowerPC [1] there was a
> > regression reported [2] when enabling SMT.
>
> This implies it was a kernel regression. But it
"Nysal Jan K.A." writes:
> From: "Nysal Jan K.A"
>
> After the addition of HOTPLUG_SMT support for PowerPC [1] there was a
> regression reported [2] when enabling SMT.
This implies it was a kernel regression. But it can't be a kernel
regression because previously there was no support at all for
