linux-kernel - Re: [REGRESSION] 6.7.1: md: raid5 hang and unresponsive system; successfully bisected

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Date: Tue,  6 Feb 2024 13:56:00 -0700
From: Dan Moulding <dan@...m.net>
To: song@...nel.org
Cc: dan@...m.net,
	gregkh@...uxfoundation.org,
	junxiao.bi@...cle.com,
	linux-kernel@...r.kernel.org,
	linux-raid@...r.kernel.org,
	regressions@...ts.linux.dev,
	stable@...r.kernel.org,
	yukuai1@...weicloud.com
Subject: Re: [REGRESSION] 6.7.1: md: raid5 hang and unresponsive system; successfully bisected

> Dan, could you please run the test on this branch
> (83cbdaf61b1ab9cdaa0321eeea734bc70ca069c8)?

I'm sorry to report that I can still reproduce the problem running the
kernel built from the md-6.9 branch (83cbdaf61b1a).

But the only commit I see on that branch that's not in master and
touches raid5.c is this one:

    test@...rescue:~/src/linux$ git log master..song/md-6.9 drivers/md/raid5.c
    commit 61c90765e131e63ead773b9b99167415e246a945
    Author: Yu Kuai <yukuai3@...wei.com>
    Date:   Thu Dec 28 20:55:51 2023 +0800

        md: remove redundant check of 'mddev->sync_thread'

Is that expected, or were you expecting additional fixes to be in there?

-- Dan