linux-kernel - Re: [PATCH] On ppc64le we HAVE_RELIABLE

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Message-ID: <20171212130246.GA4391@lst.de>
Date:   Tue, 12 Dec 2017 14:02:46 +0100
From:   Torsten Duwe <duwe@....de>
To:     Miroslav Benes <mbenes@...e.cz>
Cc:     Michael Ellerman <mpe@...erman.id.au>,
        Jiri Kosina <jkosina@...e.cz>,
        Balbir Singh <bsingharora@...il.com>,
        linux-kernel@...r.kernel.org, linuxppc-dev@...ts.ozlabs.org,
        live-patching@...r.kernel.org
Subject: Re: [PATCH] On ppc64le we HAVE_RELIABLE_STACKTRACE

On Tue, Dec 12, 2017 at 01:12:37PM +0100, Miroslav Benes wrote:
> 
> I think that this is not enough. You need to also implement 
> save_stack_trace_tsk_reliable() for powerpc defined as __weak in 
> kernel/stacktrace.c. See arch/x86/kernel/stacktrace.c for reference, but I 
> think it would be much much simpler here given the changelog description.

Is there an exhaustive, definite, non-x86-centric description of the cases
this function needs to look for? Maybe some sort of formal specification?

	Torsten