linux-kernel - Re: [linux-next:master] [mm] bbcbf2a3f0: kernel_BUG_at

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Date: Thu, 21 Dec 2023 22:13:36 +0000
From: Matthew Wilcox <willy@...radead.org>
To: David Hildenbrand <david@...hat.com>
Cc: Andrew Morton <akpm@...ux-foundation.org>,
	Oliver Sang <oliver.sang@...el.com>, oe-lkp@...ts.linux.dev,
	lkp@...el.com, Linux Memory Management List <linux-mm@...ck.org>,
	linux-kernel@...r.kernel.org
Subject: Re: [linux-next:master] [mm] bbcbf2a3f0: kernel_BUG_at_mm/memory.c

On Thu, Dec 21, 2023 at 11:07:21PM +0100, David Hildenbrand wrote:
> Subject: [PATCH] Fixup: mm: convert ksm_might_need_to_copy() to work on folios
> 
> We must only adjust the page if the folio changed. Otherwise, if we
> had a large folio in the swapcache and the folio didn't change, we'd
> suddenly change the page to-be-mapped.

Heh, I was expecting you to be done for the day ;-)