linux-kernel - Re: Possible nvme regression in 6.4.11

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Message-ID: <d544fac1-ed2b-4417-8edd-1a81ed8a41d6@leemhuis.info>
Date:   Mon, 11 Sep 2023 10:02:19 +0200
From:   "Linux regression tracking (Thorsten Leemhuis)" 
        <regressions@...mhuis.info>
To:     Genes Lists <lists@...ience.com>, Ricky WU <ricky_wu@...ltek.com>,
        Keith Busch <kbusch@...nel.org>
Cc:     "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "axboe@...nel.dk" <axboe@...nel.dk>,
        "sagi@...mberg.me" <sagi@...mberg.me>,
        "linux-nvme@...ts.infradead.org" <linux-nvme@...ts.infradead.org>,
        "hch@....de" <hch@....de>, "arnd@...db.de" <arnd@...db.de>,
        "gregkh@...uxfoundation.org" <gregkh@...uxfoundation.org>,
        Linux kernel regressions list <regressions@...ts.linux.dev>
Subject: Re: Possible nvme regression in 6.4.11

Hi, Thorsten here, the Linux kernel's regression tracker.

On 30.08.23 23:09, Genes Lists wrote:
> ...
>> I think maybe it is a system power saving issue....
>> In the past if the BIOS(config space) not set L1-substate, our driver
>> will keep drive low CLKREQ# when HOST want to enter power saving state
>> that make whole system not enter the power saving state.
>> But this patch we release the CLKREQ# to HOST, make whole system can
>> enter power saving state success when the HOST want to enter the power
>> saving state, but I don't  know why your system can not wake out
>> success from power saving stat on the platform
> 
>    Thanks for continuing to look into this. Can you share your thoughts
> on best way to proceed going forward - do you plan to revert or
> something else?

Hmmm. This looks like it fell through the cracks. Or am I missing something?

Anyway, 6.4.y will likely be EOL in a week or two. Which bears the
question: are 6.5.y and 6.6-rc1 working better for you? From the
bugzilla ticket (https://bugzilla.kernel.org/show_bug.cgi?id=217802) and
comments from others that are affected it sounds like that's not the
case. If that's how it is I guess it overdue that the 101bd907b4244a
("misc: rtsx: judge ASPM Mode to set PETXCFG Reg") is reverted. Or am I
missing something?

Ciao, Thorsten (wearing his 'the Linux kernel's regression tracker' hat)
--
Everything you wanna know about Linux kernel regression tracking:
https://linux-regtracking.leemhuis.info/about/#tldr
If I did something stupid, please tell me, as explained on that page.

#regzbot poke