linux-kernel - Re: [PATCH] kernel: add boot param to disable stack dump on panic

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Message-ID: <20240209095049.GA1528371@lichtman.org>
Date: Fri, 9 Feb 2024 09:50:49 +0000
From: Nir Lichtman <nir@...htman.org>
To: Bagas Sanjaya <bagasdotme@...il.com>, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] kernel: add boot param to disable stack dump on panic

On Fri, Feb 09, 2024 at 04:22:12PM +0700, Bagas Sanjaya wrote:
> On 2/8/24 15:14, Nir Lichtman wrote:
> > In a lot of cases when there is a kernel panic it obscures on the display the previous problem that caused it and the main
> > reason is that the call stack prints a lot of lines on the display - and there is no way to scroll back up.
> > What led me to make this patch is that I was working on running the kernel on my old computer and when I passed root=/dev/sda
> > to the kernel there was a panic and it could not start init, but since the call stack took almost all the space on the screen,
> > I couldn't see the available partitions the kernel does detects.
> > 
> > After this patch, I could just pass in the new boot parameter I added here and then it would not print the call stack,
> > and I saw the line in which the kernel prints the available partitions.
> > 
> 
> Please don't top-post; reply inline with appropriate context instead.
> 
> Thanks for the explanation. Now please send v2 with appropriate maintainers
> and lists Cc'ed (use scripts/get_maintainer.pl to find ones). Also read
> Documentation/process/submitting-patches.rst before sending.
> 
> Ciao!
> 
> -- 
> An old man doll... just what I always wanted! - Clara
> 

Yah I read the docs about submitting patches and ran the get_maintainer script but it didn't find anything for the
changes I made (except documentation maintainers), I guess maybe the panic.c file has no main mantainer?

Thanks,