Re: linux-next: build failure after merge of almost all the trees

From: Stephen Rothwell
Date: Thu Oct 28 2021 - 08:38:50 EST


Hi all,

On Thu, 28 Oct 2021 21:26:51 +1100 Stephen Rothwell <sfr@xxxxxxxxxxxxxxxx> wrote:
>
> Today's linux-next build (powerpc allyesconfig) failed like this:
>
> fs/ntfs/aops.c: In function 'ntfs_write_mst_block':
> fs/ntfs/aops.c:1311:1: error: the frame size of 2304 bytes is larger than 2048 bytes [-Werror=frame-larger-than=]
> 1311 | }
> | ^
> cc1: all warnings being treated as errors
>
> I have no idea what has caused this.

With a nudge from Arnd, it seems the immediate case was commit

f22969a66041 ("powerpc/64s: Default to 64K pages for 64 bit book3s")

from the powerpc tree switching the allyesconfig build from 4k pages to
64k pages which expanded a few arrays on the stack in that function.

--
Cheers,
Stephen Rothwell

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