linux-kernel - Re: Fwd: Lexar NM790 SSDs are not recognized anymore after 6.1.50 LTS

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Message-ID: <ZPdF3uqbJNSZADzv@kbusch-mbp>
Date:   Tue, 5 Sep 2023 09:14:38 -0600
From:   Keith Busch <kbusch@...nel.org>
To:     Linux regressions mailing list <regressions@...ts.linux.dev>
Cc:     Bagas Sanjaya <bagasdotme@...il.com>, Jens Axboe <axboe@...nel.dk>,
        Christoph Hellwig <hch@....de>,
        Sagi Grimberg <sagi@...mberg.me>,
        Claudio Sampaio <patola@...il.com>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Linux NVMe <linux-nvme@...ts.infradead.org>,
        Linux Stable <stable@...r.kernel.org>
Subject: Re: Fwd: Lexar NM790 SSDs are not recognized anymore after 6.1.50 LTS

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.