linux-kernel - Re: [PATCH 5.8 000/177] 5.8.10-rc1 review

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Message-ID: <09de87b0-8055-26ef-cc31-0c63e63e5d2a@linuxfoundation.org>
Date:   Wed, 16 Sep 2020 09:34:52 -0600
From:   Shuah Khan <skhan@...uxfoundation.org>
To:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc:     Prateek Sood <prsood@...eaurora.org>, Takashi Iwai <tiwai@...e.de>,
        linux-kernel@...r.kernel.org, torvalds@...ux-foundation.org,
        akpm@...ux-foundation.org, linux@...ck-us.net, shuah@...nel.org,
        patches@...nelci.org, ben.hutchings@...ethink.co.uk,
        lkft-triage@...ts.linaro.org, pavel@...x.de,
        stable@...r.kernel.org, Shuah Khan <skhan@...uxfoundation.org>
Subject: Re: [PATCH 5.8 000/177] 5.8.10-rc1 review

On 9/16/20 9:26 AM, Greg Kroah-Hartman wrote:
> On Wed, Sep 16, 2020 at 08:26:48AM -0600, Shuah Khan wrote:
>> On 9/16/20 12:29 AM, Greg Kroah-Hartman wrote:
>>> On Tue, Sep 15, 2020 at 08:54:24PM -0600, Shuah Khan wrote:
>>>> On 9/15/20 3:06 PM, Shuah Khan wrote:
>>>>> On 9/15/20 8:11 AM, Greg Kroah-Hartman wrote:
>>>>>> This is the start of the stable review cycle for the 5.8.10 release.
>>>>>> There are 177 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 Thu, 17 Sep 2020 14:06:12 +0000.
>>>>>> Anything received after that time might be too late.
>>>>>>
>>>>>> The whole patch series can be found in one patch at:
>>>>>>       https://www.kernel.org/pub/linux/kernel/v5.x/stable-review/patch-5.8.10-rc1.gz
>>>>>>
>>>>>> or in the git tree and branch at:
>>>>>>       git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git
>>>>>> linux-5.8.y
>>>>>> and the diffstat can be found below.
>>>>>>
>>>>>> thanks,
>>>>>>
>>>>>> greg k-h
>>>>>>
>>>>>
>>>>> Compiled and booted fine. wifi died:
>>>>>
>>>>> ath10k_pci 0000:02:00.0: could not init core (-110)
>>>>> ath10k_pci 0000:02:00.0: could not probe fw (-110)
>>>>>
>>>>> This is regression from 5.8.9 and 5.9-rc5 works just fine.
>>>>>
>>>>> I will try to bisect later this evening to see if I can isolate the
>>>>> commit.
>>>>>
>>>>
>>>> The following commit is what caused ath10k_pci driver problem
>>>> that killed wifi.
>>>>
>>>> Prateek Sood <prsood@...eaurora.org>
>>>>       firmware_loader: fix memory leak for paged buffer
>>>>
>>>> https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git/commit/?h=linux-5.8.y&id=ec0a59266c9c9f46037efd3dcc0323973e102271
>>>
>>> Ugh, that's not good, is this also a problem in 5.9-rc5 as well?  For
>>> reference, this is commit 4965b8cd1bc1 ("firmware_loader: fix memory
>>> leak for paged buffer") in Linus's tree.
>>>
>>
>> I am not seeing this on Linux 5.9-rc5 for sure.
>>
>>> And it should be showing up in 5.4.y at the moment too, as this patch is
>>> in that tree right now...
>>>
>>
>> I don't see this patch in  4.19.146-rc1
> 
> It's not there, it's in 5.4.66-rc1, which worked for you somehow, right?
> 
>> Linus's tree works for with this patch in. I compared the two files
>> for differences in commit between Linus's tree and 5.8.10-rc1
>>
>> Couldn't find anything obvious.
> 
> Again, really odd...
> 
> I don't have a problem dropping it, but I should drop it from both 5.4.y
> and 5.8.y, right?
> 

Sorry. Yes. Dropping from 5.8 and 5.4 would be great until we figure out
why this patch causes problems.

I will continue debugging and let you know what I find.

thanks,
-- Shuah