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Date:   Tue, 5 Sep 2023 09:14:38 -0600
From:   Keith Busch <kbusch@kernel.org>
To:     Linux regressions mailing list <regressions@lists.linux.dev>
Cc:     Bagas Sanjaya <bagasdotme@gmail.com>, Jens Axboe <axboe@kernel.dk>,
        Christoph Hellwig <hch@lst.de>,
        Sagi Grimberg <sagi@grimberg.me>,
        Claudio Sampaio <patola@gmail.com>,
        Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
        Linux NVMe <linux-nvme@lists.infradead.org>,
        Linux Stable <stable@vger.kernel.org>
Subject: Re: Fwd: Lexar NM790 SSDs are not recognized anymore after 6.1.50 LTS
Message-ID: <ZPdF3uqbJNSZADzv@kbusch-mbp>
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On Tue, Sep 05, 2023 at 04:49:11PM +0200, Linux regression tracking (Thorsten Leemhuis) wrote:
> But what can Claudio do to find the root cause? Check hardware
> (especially the connectors), update firmware, ...? And if that doesn't
> lead to anything, bisect the issue?

Try the current 6.5.1 as-is where the failure was previously seen and
verify if this observation is indeed 100% reproducible with the "device
not ready" kernel message. Full system power cycle between tests, too.

If this is truly a regression, my only guess is some platform power
setting that a newer kernel changed. I am currently suspicious of that
right now since 6.5.1 was reported to fail but succeed with a "quirk"
that doesn't accomplish anything. I'm more leaning toward my "device is
not reliable" theory.