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Subject: Re: md raid6 oops in 6.6.4 stable
To: Genes Lists <lists@sapience.com>, Bagas Sanjaya <bagasdotme@gmail.com>,
 snitzer@kernel.org, song@kernel.org, yukuai3@huawei.com, axboe@kernel.dk,
 mpatocka@redhat.com, heinzm@redhat.com,
 Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
 Linux RAID <linux-raid@vger.kernel.org>,
 Linux Regressions <regressions@lists.linux.dev>
Cc: Bhanu Victor DiCara <00bvd0+linux@gmail.com>, Xiao Ni <xni@redhat.com>,
 Greg Kroah-Hartman <gregkh@linuxfoundation.org>
References: <6e6816dd-2ec5-4bca-9558-60cfde46ef8c@sapience.com>
 <ZXHJEkwIJ5zKTMjV@archie.me>
 <be56b5df-fef8-4dbe-bb98-f6370a692d6e@sapience.com>
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From: Guoqing Jiang <guoqing.jiang@linux.dev>
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Hi,

On 12/7/23 21:55, Genes Lists wrote:
> On 12/7/23 08:30, Bagas Sanjaya wrote:
>> On Thu, Dec 07, 2023 at 08:10:04AM -0500, Genes Lists wrote:
>>> I have not had chance to git bisect this but since it happened in 
>>> stable I
>>> thought it was important to share sooner than later.
>>>
>>> One possibly relevant commit between 6.6.3 and 6.6.4 could be:
>>>
>>>    commit 2c975b0b8b11f1ffb1ed538609e2c89d8abf800e
>>>    Author: Song Liu <song@kernel.org>
>>>    Date:   Fri Nov 17 15:56:30 2023 -0800
>>>
>>>      md: fix bi_status reporting in md_end_clone_io
>>>
>>> log attached shows page_fault_oops.
>>> Machine was up for 3 days before crash happened.

Could you decode the oops (I can't find it in lore for some reason) 
([1])? And
can it be reproduced reliably? If so, pls share the reproduce step.

[1]. https://lwn.net/Articles/592724/

Thanks,
Guoqing