netdev - Re: net/kgdb: Taking another crack at implementing kgdboe

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Message-ID: <20200224120326.igxombbpuiqrjucx@holly.lan>
Date:   Mon, 24 Feb 2020 12:03:26 +0000
From:   Daniel Thompson <daniel.thompson@...aro.org>
To:     Jordan Hand <jorhand@...ux.microsoft.com>
Cc:     netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
        jason.wessel@...driver.com, dianders@...omium.org
Subject: Re: net/kgdb: Taking another crack at implementing kgdboe

On Fri, Feb 21, 2020 at 04:33:48PM -0800, Jordan Hand wrote:
> Hey folks,
> 
> I have been scouring patches from around 2005-2008 related to kgdboe
> (kgdb over ethernet) and I am interested in taking a shot at getting it
> into the mainline kernel.
> 
> I found an implementation from Tom Rini in 2005[1] and an out of tree
> implementation[2].
> 
> So I have a couple questions before I dive in:
> 
> 1. Is anyone actively working on this? From lkml archives it appears no
> but I thought I'd ask.
> 2. Does anyone have an objection to this feature? From my reading it
> seems that the reason it was never merged was due to reliability issues
> but I just want to double check that people don't see some larger issue.

Like Jason said, I can't see any objections on the kgdb side but
integrating even with simple peripherals (UARTs for example) has it's
share of pitfalls so it may take a fair bit of work to make the net
developers comfortable!


Daniel.