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

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Message-ID: <42f50a48-10da-4739-9e51-f865fbf04bdd@linux.dev>
Date: Wed, 16 Apr 2025 10:46:34 +0800
From: Ye Liu <ye.liu@...ux.dev>
To: Andrew Morton <akpm@...ux-foundation.org>
Cc: linux-kernel@...r.kernel.org, linux-toolchains@...r.kernel.org,
 linux-mm@...ck.org, Ye Liu <liuye@...inos.cn>
Subject: Re: [PATCH] tools/drgn: Add script to display page state for a given
 PID and VADDR


在 2025/4/16 10:14, Andrew Morton 写道:
> On Tue, 15 Apr 2025 15:50:24 +0800 Ye Liu <ye.liu@...ux.dev> wrote:
>
>> From: Ye Liu <liuye@...inos.cn>
>>
>> Introduces a new drgn script, `show_page_info.py`, which allows users
>> to analyze the state of a page given a process ID (PID) and a virtual
>> address (VADDR). This can help kernel developers or debuggers easily
>> inspect page-related information in a live kernel or vmcore.
>>
>> The script extracts information such as the page flags, mapping, and
>> other metadata relevant to diagnosing memory issues.
>>
>> Currently, there is no specific maintainer entry for `tools/drgn/` in the
>> MAINTAINERS file. Therefore, this patch is sent to the general kernel and
>> tools mailing lists for review.
> Help.  My copy of linux has no tools/drgn/
I noticed that the current upstream Linux tree doesn't contain a
`tools/drgn/` directory.

I'm interested in contributing a drgn script tool as well.
Given that this directory does not yet exist in mainline, where would
be the appropriate place to add new drgn scripts? Would it make sense
to create a new `tools/drgn/` directory, or is there a preferred
location for such debugging scripts?

Thanks,
Ye