linux-kernel - Re: boot regression on ppc64 with linux 6.2

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Message-ID: <ZBFo18eqFIWvdwpo@righiandr-XPS-13-7390>
Date:   Wed, 15 Mar 2023 07:42:31 +0100
From:   Andrea Righi <andrea.righi@...onical.com>
To:     Michael Ellerman <mpe@...erman.id.au>
Cc:     Nicholas Piggin <npiggin@...il.com>,
        Christophe Leroy <christophe.leroy@...roup.eu>,
        Oleg Nesterov <oleg@...hat.com>, linuxppc-dev@...ts.ozlabs.org,
        linux-kernel@...r.kernel.org
Subject: Re: boot regression on ppc64 with linux 6.2

On Wed, Mar 15, 2023 at 07:10:25AM +0100, Andrea Righi wrote:
> On Wed, Mar 15, 2023 at 02:30:53PM +1100, Michael Ellerman wrote:
> > Andrea Righi <andrea.righi@...onical.com> writes:
> > > I'm triggering the following bug when booting my qemu powerpc VM:
> > 
> > I'm not seeing that here :/
> > 
> > Can you give a bit more detail?
> >  - qemu version
> >  - qemu command line
> >  - what userspace are you using?
> >  - full dmesg of the failing case
> 
> Yeah, ignore this for now, it could be related to another custom patch
> that I had applied (and forgot about it sorry), this one:
> https://lore.kernel.org/lkml/20230119155709.20d87e35.gary@garyguo.net/T/
> 
> That is causing other issues on ppc64, so I think it might be related to
> that, I'll do more tests making sure I use a vanilla kernel.
> 
> Sorry for the noise.

In fact, I confirm that everything works fine with v6.2.6.

Thanks,
-Andrea