linux-kernel - Re: [PATCH 6.1 00/71] 6.1.82-rc1 review

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Date: Fri, 15 Mar 2024 10:42:55 -0400
From: Sasha Levin <sashal@...nel.org>
To: Jens Axboe <axboe@...nel.dk>
Cc: Mateusz Jończyk <mat.jonczyk@...pl>,
	linux-kernel@...r.kernel.org, stable@...r.kernel.org,
	Christoph Hellwig <hch@....de>, torvalds@...ux-foundation.org,
	akpm@...ux-foundation.org, linux@...ck-us.net, shuah@...nel.org,
	patches@...nelci.org, lkft-triage@...ts.linaro.org, pavel@...x.de,
	Andreas Herrmann <aherrmann@...e.de>, Tejun Heo <tj@...nel.org>
Subject: Re: [PATCH 6.1 00/71] 6.1.82-rc1 review

On Fri, Mar 15, 2024 at 08:14:57AM -0400, Sasha Levin wrote:
>On Thu, Mar 14, 2024 at 04:40:53PM -0600, Jens Axboe wrote:
>>On 3/14/24 4:35 PM, Sasha Levin wrote:
>>>On Thu, Mar 14, 2024 at 04:04:59PM -0600, Jens Axboe wrote:
>>>>On 3/14/24 3:12 PM, Mateusz Jo?czyk wrote:
>>>>>W dniu 13.03.2024 o 22:27, Mateusz Jo?czyk pisze:
>>>>>>W dniu 13.03.2024 o 21:13, Mateusz Jo?czyk pisze:
>>>>>>>W dniu 13.03.2024 o 17:38, Sasha Levin pisze:
>>>>>>>>This is the start of the stable review cycle for the 6.1.82 release.
>>>>>>>>There are 71 patches in this series, all will be posted as a response
>>>>>>>>to this one.  If anyone has any issues with these being applied, please
>>>>>>>>let me know.
>>>>>>>>
>>>>>>>>Responses should be made by Fri Mar 15 04:39:56 PM UTC 2024.
>>>>>>>>Anything received after that time might be too late.
>>>>>>>>
>>>>>>>>The whole patch series can be found in one patch at:
>>>>>>>>        https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git/patch/?id=linux-6.1.y&id2=v6.1.81
>>>>>>>>or in the git tree and branch at:
>>>>>>>>        git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git linux-6.1.y
>>>>>>>>and the diffstat can be found below.
>>>>>>>>
>>>>>>>>Thanks,
>>>>>>>>Sasha
>>>>>>>>
>>>>>>>Hello,
>>>>>>>
>>>>>>>Kernel hangs during early boot. No console messages, nothing in pstore.
>>>>>>>
>>>>>>>Tested on a HP 17-by0001nw laptop with an Intel Kaby Lake CPU (Intel i3-7020U) and Ubuntu 20.04.
>>>>>>>
>>>>>>>This CPU is not affected by RFDS (at least according to the Kconfig message), so I have set
>>>>>>>
>>>>>>>CONFIG_MITIGATION_RFDS=n
>>>>>>>
>>>>>>>in Kconfig. I do not have any updated microcode (if any will be provided at all for this CPU).
>>>>>>>
>>>>>>>Greetings,
>>>>>>>
>>>>>>>Mateusz
>>>>>>>
>>>>>>[snip]
>>>>>
>>>>>Bisected down to
>>>>>
>>>>>commit d3d517a95e83a7d89e1ff511da1a0a31c9234155
>>>>>Author: Christoph Hellwig <hch@....de>
>>>>>Date:   Fri Feb 3 16:03:54 2023 +0100
>>>>>
>>>>>    blk-rq-qos: make rq_qos_add and rq_qos_del more useful
>>>>
>>>>Do you have:
>>>>
>>>>commit e33b93650fc5364f773985a3e961e24349330d97
>>>>Author: Breno Leitao <leitao@...ian.org>
>>>>Date:   Tue Feb 28 03:16:54 2023 -0800
>>>>
>>>>   blk-iocost: Pass gendisk to ioc_refresh_params
>>>>
>>>>in there?
>>>
>>>It's not in the 6.1 tree, do we need it?
>>
>>If the bisected commit is in there, then yes we need it. It's marked as
>>fixes that, so puzzled why it isn't in there?
>
>Sorry, I take it back - both e33b93650fc5 ("blk-iocost: Pass gendisk to
>ioc_refresh_params") and d3d517a95e83 ("blk-rq-qos: make rq_qos_add and
>rq_qos_del more useful") are currently in the 6.1 tree.

I'll go ahead and drop the backport of f814bdda774c ("blk-wbt: Fix
detection of dirty-throttled tasks") as well as the dependencies (which
is where this issue bisected to), and all follow-up fixes.

We can revisit this for the next release.

-- 
Thanks,
Sasha