linux-kernel - md raid6 oops in 6.6.4 stable

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Date:   Thu, 7 Dec 2023 08:10:04 -0500
From:   Genes Lists <lists@...ience.com>
To:     snitzer@...nel.org, song@...nel.org, yukuai3@...wei.com,
        axboe@...nel.dk, mpatocka@...hat.com, heinzm@...hat.com,
        linux-kernel@...r.kernel.org
Subject: md raid6 oops in 6.6.4 stable

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@...nel.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.

gene
View attachment "raid6-crash" of type "text/plain" (4134 bytes)