linux-kernel - Re: [PATCH v13 06/11] arm64: Use stack_trace_consume

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Message-ID: <YiiT2lFuxc3ob+Zq@sirena.org.uk>
Date:   Wed, 9 Mar 2022 11:47:38 +0000
From:   Mark Brown <broonie@...nel.org>
To:     "Madhavan T. Venkataraman" <madvenka@...ux.microsoft.com>
Cc:     Mark Rutland <mark.rutland@....com>, jpoimboe@...hat.com,
        ardb@...nel.org, nobuta.keiya@...itsu.com,
        sjitindarsingh@...il.com, catalin.marinas@....com, will@...nel.org,
        jmorris@...ei.org, linux-arm-kernel@...ts.infradead.org,
        live-patching@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v13 06/11] arm64: Use stack_trace_consume_fn and rename
 args to unwind()

On Tue, Mar 08, 2022 at 04:00:35PM -0600, Madhavan T. Venkataraman wrote:

> It is just that patch 11 that defines "select
> HAVE_RELIABLE_STACKTRACE" did not receive any comments from you
> (unless I missed a comment that came from you. That is entirely
> possible. If I missed it, my bad). Since you suggested that change, I
> just wanted to make sure that that patch looks OK to you.

I think that's more a question for the livepatch people to be honest -
it's not entirely a technical one, there's a bunch of confidence level
stuff going on.  For example there was some suggestion that people might
insist on having objtool support, though there's also substantial
pushback on making objtool a requirement for anything from other
quarters.  I was hoping that posting that patch would provoke some
discussion about what exactly is needed but that's not happened thus
far.

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