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Subject: Re: unrecoverable exception on G5 with CONFIG_PPC_EARLY_DEBUG enabled
From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
To: Denis Kirjanov <kda@linux-powerpc.org>, Michael Ellerman
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Cc: linuxppc-dev <linuxppc-dev@lists.ozlabs.org>, "Aneesh Kumar K.V"
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Date: Fri, 17 Jun 2016 08:33:10 +1000
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On Thu, 2016-06-16 at 22:49 +0300, Denis Kirjanov wrote:
> -
> +BEGIN_MMU_FTR_SECTION
> +       b       2f
> +END_MMU_FTR_SECTION_IFSET(MMU_FTR_RADIX)
>         andi.   r10,r12,MSR_RI  /* check for unrecoverable exception
> */
>         beq-    2f

Are we taking an SLB miss before we do the fixup maybe ?

Cheers,
Ben.