linux-kernel - Re: maple_tree.c:3738:1: error: the frame size of 1040 bytes is larger than 1024 bytes

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Message-ID: <dbx8wm3dogjn.fsf@ynaffit-andsys.c.googlers.com>
Date: Tue, 25 Nov 2025 15:09:48 -0800
From: Tiffany Yang <ynaffit@...gle.com>
To: Christian Kujau <lists@...dbynature.de>
Cc: David Laight <david.laight.linux@...il.com>, linux-kernel@...r.kernel.org, 
	"Liam R. Howlett" <Liam.Howlett@...cle.com>, Arnd Bergmann <arnd@...db.de>
Subject: Re: maple_tree.c:3738:1: error: the frame size of 1040 bytes is
 larger than 1024 bytes

Hi Christian,

Sorry to resurrect this old thread, but I wanted to reply in case you
were still thinking about this for whatever reason. I was running into a
similar issue with building UML, and then I found Geert's reply [1] in a
related thread.

Christian Kujau <lists@...dbynature.de> writes:

> On Thu, 30 Oct 2025, David Laight wrote:
>> It is horrendous - best part of 4k code, the stack frame is 0x408.
>> Which means I must be building with a larger stack frame limit.
>> Is one of your debug options reducing it?

> No that I know of. I've attached the config to my initial posting.

I'm not sure how you set your config initially, but what jumps out at me
is that CONFIG_STACK_WARN=1024 even though
CONFIG_64BIT=y. CONFIG_STACK_WARN defaults to 2048 for 64-bit builds,
which is why other people don't seem to be running into this issue (at
least from glancing over the mailing list).

Obviously, this doesn't solve the actual problem, but from Liam's reply
further up in the thread, it looks like he's working on a fix, so now
you can keep your eye out for that!

[1]  
https://lore.kernel.org/all/CAMuHMdVqOR2kPy7V+N5oCFrKZA0R7JHC_+QsjFc5c43F1KFFiw@mail.gmail.com/

-- 
Tiffany Y. Yang