linux-kernel - Re: [PATCH v12 07/10] arm64: Introduce stack trace reliability checks in the unwinder

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Message-ID: <85156eb8-df63-29c0-cbfc-37bc0356d9e8@linux.microsoft.com>
Date:   Wed, 5 Jan 2022 17:58:59 -0600
From:   "Madhavan T. Venkataraman" <madvenka@...ux.microsoft.com>
To:     Mark Brown <broonie@...nel.org>
Cc:     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 v12 07/10] arm64: Introduce stack trace reliability checks
 in the unwinder

Thanks for the review. Do you have any comments on:

[PATCH v12 04/10] arm64: Split unwind_init()
[PATCH v12 10/10] arm64: Select HAVE_RELIABLE_STACKTRACE

Madhavan

On 1/5/22 10:58 AM, Mark Brown wrote:
> On Mon, Jan 03, 2022 at 10:52:09AM -0600, madvenka@...ux.microsoft.com wrote:
>> From: "Madhavan T. Venkataraman" <madvenka@...ux.microsoft.com>
>>
>> There are some kernel features and conditions that make a stack trace
>> unreliable. Callers may require the unwinder to detect these cases.
>> E.g., livepatch.
> 
> Reviwed-by: Mark Brown <broonie@...nel.org>
> 
> 
> _______________________________________________
> linux-arm-kernel mailing list
> linux-arm-kernel@...ts.infradead.org
> http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
> 

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