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Subject: Re: [PATCH v3 1/1] ppc/crash: Reset spinlocks during crash
From:   Leonardo Bras <leonardo@linux.ibm.com>
To:     Michael Ellerman <mpe@ellerman.id.au>,
        Benjamin Herrenschmidt <benh@kernel.crashing.org>,
        Paul Mackerras <paulus@samba.org>,
        Enrico Weigelt <info@metux.net>,
        Alexios Zavras <alexios.zavras@intel.com>,
        Thomas Gleixner <tglx@linutronix.de>,
        Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        Christophe Leroy <christophe.leroy@c-s.fr>,
        peterz@infradead.org
Cc:     linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org
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On Thu, 2020-04-02 at 22:28 +1100, Michael Ellerman wrote:
> Leonardo Bras <leonardo@linux.ibm.com>=20
> TBH I think we could just drop that printk() entirely.
>=20
> Or we could tell printk() that we're in NMI context so that it uses the
> percpu buffers.
>=20
> We should probably do the latter anyway, in case there's any other code
> we call that inadvertently calls printk().

Done:
http://patchwork.ozlabs.org/patch/1266956/

About the rtas-call, I think it will take more time, because I have to
study it properly.

Thank you,

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