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Date:   Sat, 25 Sep 2021 11:47:08 -0700
From:   Linus Torvalds <torvalds@...ux-foundation.org>
To:     Aditya Garg <gargaditya08@...e.com>
Cc:     "kbusch@...nel.org" <kbusch@...nel.org>,
        "axboe@...com" <axboe@...com>, "hch@....de" <hch@....de>,
        "sagi@...mberg.me" <sagi@...mberg.me>,
        "linux-nvme@...ts.infradead.org" <linux-nvme@...ts.infradead.org>,
        "james.smart@...adcom.com" <james.smart@...adcom.com>,
        "chaitanya.kulkarni@....com" <chaitanya.kulkarni@....com>,
        "akpm@...ux-foundation.org" <akpm@...ux-foundation.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "trivial@...nel.org" <trivial@...nel.org>
Subject: Re: [PATCH] Urgent bug fix causing Apple SSDs to not work.

On Fri, Sep 24, 2021 at 9:02 PM Aditya Garg <gargaditya08@...e.com> wrote:
>
> From: Aditya Garg <gargaditya08@...e.com>
> Date: Fri, 24 Sep 2021 15:36:45 +0530
> Subject: [PATCH] Revert nvme to 5.14.5 to fix incompatibility arised in Apple SSDs.
> Fixes: e7006de6c238 (nvme: code command_id with a genctr for use-after-free validation)

I think we need to hear more about the problem than just revert a
commit like this randomly. That commit has already been picked up for
-stable,

What are the exact symptoms, and which Apple SSD is this?

I do find this:

  https://lore.kernel.org/all/cjJiSFV77WM51ciS8EuBcdeBcv9T83PUB-Kw3yi8PuC_LwrrUUnQ3w5RC1PbKvSYE72KryXp3wOJhv4Ov_WWIe2gKWOOo5uwuUjbbFA8HDM=@protonmail.com/

which instead of a revert has an actual patch. Can you try that one?

Keith Busch replied to that one, saying that the Apple SSD might not
be spec compliant, but hey, what else is new? If we start demanding
that hardware comply with specs, we'd have to scrap the whole notion
of working in the real world. Plus it would be very hypocritical of
us, since we ignore all specs when we deem them too limiting (whether
they be language specs, POSIX OS specs, or whatever).

           Linus

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