Re: [PATCH -next 5/7] mm: memory: convert wp_page_copy() to use folios

From: David Hildenbrand
Date: Fri Jan 13 2023 - 08:20:55 EST


On 13.01.23 14:01, Marek Szyprowski wrote:
Hi

On 12.01.2023 09:30, Kefeng Wang wrote:
The old_page/new_page are converted to old_folio/new_folio in
wp_page_copy(), then replaced related page functions to folio
functions.

Signed-off-by: Kefeng Wang <wangkefeng.wang@xxxxxxxxxx>

This patch, merged into today's linux-next as commit 9ebae00c8e30 ("mm:
memory: convert wp_page_copy() to use folios"), causes serious stability
issues on my ARM based test boards. Here is the example of such crash:

syzbot is also not happy:

https://lkml.kernel.org/r/000000000000807c7805f2205df1@xxxxxxxxxx

--
Thanks,

David / dhildenb