Powerd Panic

[Cy Schubert]

In message <77cdb188-a47e-4a0d-a09f-c04377cda084 at selasky.org>, Hans Petter 
Sela
sky writes:
> On 2020-01-24 14:38, Cy Schubert wrote:
> > In message <629a6d48-cf47-e76b-81a0-db29d2400b2b at selasky.org>, Hans Petter
> > Sela
> > sky writes:
> >> Hi,
> >>
> >> I think this patch will fix your issue. Can you check?
> >> https://svnweb.freebsd.org/changeset/base/357050
> >>
> >> Look like td->td_oncpu is invalid.
> >>
> >>
> >>>          pc = cpuid_to_pcpu[td->td_oncpu]; /* pcpu_find(td->td_oncpu); */
> >>>
> >>>          rm_tracker_add(pc, tracker);
> >>
> >>
> >>
> >> And thanks for running -current ;-)
> > 
> > That patch is already there. All my machines are at r357066.
> > 
>
> OK,
>
> so maybe there are more corner cases to that patch.
>
> Adding Mark.
>
> Could you compile a kernel with debugging symbols, get a core dump and then:
>
> print td->td_oncpu
> print pc
>
> from kgdb83 ?

The kernel is already compiled with debugging symbols. It dumped except 
that savecore failed to save the dump in both cases. (My last core files on 
those two machines were from October.) I will try to reproduce the problem 
and instead of automatically rebooting save the core by hand.


-- 
Cheers,
Cy Schubert <Cy.Schubert at cschubert.com>
FreeBSD UNIX:  <cy at FreeBSD.org>   Web:  http://www.FreeBSD.org

	The need of the many outweighs the greed of the few.