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Message-ID: <8bbc5629-b89a-83f3-41a4-0083ea2468c1@redhat.com>
Date:   Fri, 13 Jan 2023 14:08:36 +0100
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Subject: Re: [PATCH -next 5/7] mm: memory: convert wp_page_copy() to use
 folios
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To:     Marek Szyprowski <m.szyprowski@samsung.com>,
        Kefeng Wang <wangkefeng.wang@huawei.com>,
        akpm@linux-foundation.org, willy@infradead.org, linux-mm@kvack.org
Cc:     linux-kernel@vger.kernel.org
References: <20230112083006.163393-1-wangkefeng.wang@huawei.com>
 <20230112083006.163393-6-wangkefeng.wang@huawei.com>
 <CGME20230113130136eucas1p18a54a3812792e500a02079ee890e5ecb@eucas1p1.samsung.com>
 <32fefce6-e25d-106d-12ec-8fc612843cfb@samsung.com>
From:   David Hildenbrand <david@redhat.com>
Organization: Red Hat
In-Reply-To: <32fefce6-e25d-106d-12ec-8fc612843cfb@samsung.com>
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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@huawei.com>
> 
> 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@google.com

-- 
Thanks,

David / dhildenb