Subject: Re: [DLPAR CPU][Oops] Bad kernel stack pointer

From: Michael Ellerman <[email-masked]>
Date: Wed, 20 Sep 2017 21:42:21 +1000

Abdul Haleem <[email-masked]> writes:

> Hi,
>
> Dynamic CPU remove operation resulted in Kernel Panic on today's
> next-20170915 kernel.
>
> Machine Type: Power 7 PowerVM LPAR
> Kernel : 4.13.0-next-20170915
> config : attached
> test: DLPAR CPU remove
>
>
> dmesg logs:
> ----------
> cpu 37 (hwid 37) Ready to die...
> cpu 38 (hwid 38) Ready to die...
> cpu 39 (hwid 39)
> ******* RTAS CReady to die...
> ALL BUFFER CORRUPTION *******

Cool. Does that come from RTAS itself? I have never seen that happen
before.

Is this easily reproducible?

cheers