linux-kernel - Re: [PATCH] nvme-pci: add NVME_QUIRK_BOGUS

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Message-id: <8be4e657-53c3-45f5-eec9-c80379cf7ad8@augustwikerfors.se>
Date:   Thu, 17 Nov 2022 10:09:54 +0100
From:   August Wikerfors <git@...ustwikerfors.se>
To:     Kanchan Joshi <joshi.k@...sung.com>
Cc:     Christoph Hellwig <hch@....de>, Keith Busch <kbusch@...nel.org>,
        Jens Axboe <axboe@...com>, Sagi Grimberg <sagi@...mberg.me>,
        linux-nvme@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] nvme-pci: add NVME_QUIRK_BOGUS_NID for Samsung PM9B1 256G
 and 512G

On 2022-11-17 08:13, Kanchan Joshi wrote:
> On Wed, Nov 16, 2022 at 06:42:43PM +0100, August Wikerfors wrote:
>> On 2022-11-16 18:19, Christoph Hellwig wrote:
>>> On Wed, Nov 16, 2022 at 06:17:27PM +0100, August Wikerfors wrote:
>>>> The Samsung PM9B1 512G SSD found in some Lenovo Yoga 7 14ARB7 laptop 
>>>> units
>>>> reports eui as 0001000200030004 when resuming from s2idle, causing the
>>>> device to be removed with this error in dmesg:
>>>>
>>>> nvme nvme0: identifiers changed for nsid 1
>>>
>>> What EUI did it report before? Is the identifier stable after
>>> multiple resume cycles?
>> The original EUI is "002538e621b440e5". Using the patches from [1] and 
>> [2] for debugging I consistently get this output on every resume:
>>> eui changed from 002538e621b440e5 to 0001000200030004
> 
> Can you please share the firmware version of this SSD?

The firmware version is 7L1QHXC7.