linux-kernel - Re: [PATCH v3] tools/mm: Add script to display page state for a given PID and VADDR

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Message-Id: <20250424034918.48530-1-sj@kernel.org>
Date: Wed, 23 Apr 2025 20:49:18 -0700
From: SeongJae Park <sj@...nel.org>
To: Ye Liu <ye.liu@...ux.dev>
Cc: SeongJae Park <sj@...nel.org>,
	akpm@...ux-foundation.org,
	linux-debuggers@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	linux-mm@...ck.org,
	linux-toolchains@...r.kernel.org,
	osandov@...ndov.com,
	paulmck@...nel.org,
	sweettea-kernel@...miny.me,
	liuye@...inos.cn
Subject: Re: [PATCH v3] tools/mm: Add script to display page state for a given PID and VADDR

On Thu, 24 Apr 2025 11:24:33 +0800 Ye Liu <ye.liu@...ux.dev> wrote:

[...]
> Regarding compatibility across versions, this is definitely something worth
> paying attention to. Currently, the script is being adapted based on the
> latest drgn and kernel versions. If future changes to kernel structures
> occur, I plan to patch the script accordingly to maintain compatibility.
> 
> That said, I’m very open to suggestions — do you have any ideas on how
> we could better detect or guard against these kinds of breakages
> proactively?                                                               

No, unfortunately :'(  I'm a drgn newbie user and trying to learn ways to use
it better.  I therefore thought this problem could also happen to me, and asked
the question to know if you or others have a good solution.

> 
> Thanks again for raising this!

I'm so glad to hear this. :)


Thanks,
SJ

[...]