Re: [PATCH v9 0/8] Parallel CPU bringup for x86_64

[Oleksandr Natalenko]

On 21.02.2023 08:53, David Woodhouse wrote:
> On 21 February 2023 07:27:13 GMT, Oleksandr Natalenko 
> <oleksandr@xxxxxxxxxxxxxx> wrote:
> > On 21.02.2023 00:30, David Woodhouse wrote:
> > > Oleksandr, please could you show the output of 'cpuid' after a
> > > successful resume?  I'm particularly looking for this part...
> > >
> > >
> > > $ sudo cpuid | grep -A1 1/ebx
> > >    miscellaneous (1/ebx):
> > >       process local APIC physical ID = 0x0 (0)
> > > --
> > >    miscellaneous (1/ebx):
> > >       process local APIC physical ID = 0x2 (2)
> > > ...
> >
> > For me this command doesn't produce any output. Also, no output from 
> > the command Kim used in response to you. With no `grep` it just dumps 
> > a table of raw hex data.
>
> I'll take the hex please.

Please see here: http://ix.io/4oLm

> > It's `msr-tools` 1.3-4 from Arch. Should I run this command on a 
> > patched kernel booted with `no_parallel_bringup`, or on unpatched 
> > kernel (if that makes any difference)?
>
> Either works as long as it's after a resume that wouldn't have worked. 
> Thanks.

OK, I'm on an unpatched kernel now.

--
  Oleksandr Natalenko (post-factum)