linux-kernel - Re: lib/maple_tree.c:4056:1: error: the frame size of 1144 bytes is larger than 1024 bytes

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Message-ID: <20250131122801.rb3bid7peznbgxwg@master>
Date: Fri, 31 Jan 2025 12:28:01 +0000
From: Wei Yang <richard.weiyang@...il.com>
To: Scall <scall@...semail.net>
Cc: "Liam R. Howlett" <Liam.Howlett@...cle.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	maple-tree@...ts.infradead.org, linux-mm@...ck.org,
	linux-kernel@...r.kernel.org, Wei Yang <richard.weiyang@...il.com>
Subject: Re: lib/maple_tree.c:4056:1: error: the frame size of 1144 bytes is
 larger than 1024 bytes

Hi, Scall

On Thu, Jan 30, 2025 at 11:31:50PM +0100, Scall wrote:
>On 1/30/25 5:13 PM, Liam R. Howlett wrote:
>> Do you have KASAN or lock debugging on?
>
>No, I don't.
>
>> Does the issue go away when reverting 8c7904a8cd0df ("maple_tree: i is
>> always less than or equal to mas_end") ?
>
>That commit has not been backported to the kernel version I tried to build
>(6.12.11, currently the latest stable version).

Is there a public git tree to get the code you do build?

>
>Good news: I learned that the issue has already been solved in the mainline
>version with commit 5059aa6334fcf ("maple_tree: memset maple_big_node as a
>whole") and backporting it is the solution.

Or, is it possible to list the last several commits of file lib/maple_tree.c
so that I can reproduce it on my side.

I guess maybe I can try to reproduce this with:

   * set CONFIG_FRAM_WARN to 1024
   * set KCFLAGS="-O3"

I would try to take a look first.

Is the GCC version matters? I don't have the exact version at hand. Have you
tried other version?

-- 
Wei Yang
Help you, Help me