Re: [PATCH v18 5/7] kexec: exclude hot remove cpu from elfcorehdr notes

[Sourabh Jain]

On 13/02/23 18:22, Thomas Gleixner wrote:
> On Mon, Feb 13 2023 at 10:10, Sourabh Jain wrote:
> > The sysconf document says _SC_NPROCESSORS_CONF is processors configured,
> > isn't that equivalent to possible CPUs?
> glibc tries to evaluate that in the following order:
>
>    1) /sys/devices/system/cpu/cpu*
>
>       That's present CPUs not possible CPUs
>
>    2) /proc/stat
>
>       That's online CPUs
>
>    3) sched_getaffinity()
>
>       That's online CPUs at best. In the worst case it's an affinity mask
>       which is set on a process group

Thanks for the clarification Thomas.

- Sourabh