linux-kernel - Re: [RFC PATCH v2 1/1] arm64: Implement stack trace termination record

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Message-ID: <765d0a08-d65f-162b-b20d-07a51b05d984@linux.microsoft.com>
Date:   Fri, 16 Apr 2021 12:31:55 -0500
From:   "Madhavan T. Venkataraman" <madvenka@...ux.microsoft.com>
To:     Mark Brown <broonie@...nel.org>
Cc:     mark.rutland@....com, jpoimboe@...hat.com, jthierry@...hat.com,
        catalin.marinas@....com, will@...nel.org,
        linux-arm-kernel@...ts.infradead.org,
        live-patching@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [RFC PATCH v2 1/1] arm64: Implement stack trace termination
 record

Thanks!

Madhavan

On 4/16/21 11:17 AM, Mark Brown wrote:
> On Thu, Apr 01, 2021 at 10:24:04PM -0500, madvenka@...ux.microsoft.com wrote:
> 
>> Reliable stacktracing requires that we identify when a stacktrace is
>> terminated early. We can do this by ensuring all tasks have a final
>> frame record at a known location on their task stack, and checking
>> that this is the final frame record in the chain.
> 
> Reviewed-by: Mark Brown <broonie@...nel.org>
>