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

[Jens Axboe]

On 3/15/24 8:42 AM, Sasha Levin wrote:
> 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@xxxxxx>
>>>>>> 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@xxxxxxxxxx>
>>>>> 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 didn't see e33b93650fc5 in there, but maybe it was part of the series
that this is about.

> 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.

Sounds reasonable.

-- 
Jens Axboe