linux-kernel - Re: [PATCH] docs: reporting-issues.rst: explain how to decode stack traces

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Message-ID: <20210215142803.strbiszzmreusr36@e107158-lin.cambridge.arm.com>
Date:   Mon, 15 Feb 2021 14:28:03 +0000
From:   Qais Yousef <qais.yousef@....com>
To:     Thorsten Leemhuis <linux@...mhuis.info>
Cc:     Jonathan Corbet <corbet@....net>,
        Randy Dunlap <rdunlap@...radead.org>,
        linux-doc@...r.kernel.org, linux-kernel@...r.kernel.org,
        Sasha Levin <sashal@...nel.org>,
        Vlastimil Babka <vbabka@...e.cz>,
        Joerg Roedel <joro@...tes.org>,
        Damian Tometzki <linux@...etzki.de>
Subject: Re: [PATCH] docs: reporting-issues.rst: explain how to decode stack
 traces

Hi Thorsten

On 02/15/21 06:55, Thorsten Leemhuis wrote:
> Hi! Many thx for looking into this, much appreciated!
> 
> Am 14.02.21 um 17:00 schrieb Qais Yousef:
> > On 02/10/21 06:48, Thorsten Leemhuis wrote:
> >
> >> - * If the failure includes a stack dump, like an Oops does, consider decoding
> >> -   it to find the offending line of code.
> >> + * If your failure involves a 'panic', 'oops', or 'warning', consider decoding
> > or 'BUG'? There are similar other places below that could benefit from this
> > addition too.
> 
> Good point. In fact there are other places in the document where this is
> needed as well. Will address those in another patch.
> 
> >> +   the kernel log to find the line of code that trigger the error.
> >>  
> >>   * If your problem is a regression, try to narrow down when the issue was
> >>     introduced as much as possible.
> >> @@ -869,6 +869,15 @@ pick up the configuration of your current kernel and then tries to adjust it
> >>  somewhat for your system. That does not make the resulting kernel any better,
> >>  but quicker to compile.
> >>  
> >> +Note: If you are dealing with a kernel panic, oops, or warning, please make
> >> +sure to enable CONFIG_KALLSYMS when configuring your kernel. Additionally,
> > 
> > s/make sure/try/
> 
> I did that, but ignored...
> 
> > s/kernel./kernel if you can./
> 
> ...this. Yes, you have a point with...
> 
> > Less demanding wording in case the user doesn't have the capability to rebuild
> > or deploy such a kernel where the problem happens. Maybe you can tweak it more
> > if you like too :-)
> 
> ...that, but that section in the document is about building your own
> kernel, so I'd say we don't have to be that careful here.

Cool. Works for me.

Thanks

--
Qais Yousef