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Date:   Thu,  7 Dec 2017 00:00:00 +1100 (AEDT)
From:   Michael Ellerman <>
To:     David Gibson <>,
        David Gibson <>
Subject: Re: Revert "powerpc: Do not call ppc_md.panic in fadump panic notifier"

On Mon, 2017-12-04 at 05:27:25 UTC, David Gibson wrote:
> This reverts commit a3b2cb30f252b21a6f962e0dd107c8b897ca65e4.
> The earlier patch tried to fix problems with panic on powerpc in
> certain circumstances, where some output from the generic panic code
> was being dropped.
> Unfortunately, it breaks things worse in other circumstances.  In
> particular when running a PAPR guest, it will now attempt to reboot
> instead of informing the hypervisor (KVM or PowerVM) that the guest
> has crashed.  The crash notification is important to some
> virtualization management layers.
> Since the circumstances in which the original patch helped are
> somewhat obscure, revert it for now until we figure out how to do it
> properly.
> Signed-off-by: David Gibson <>

Applied to powerpc fixes, thanks.


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