linux-kernel - Re: [PATCH 4.14 000/209] 4.14.158-stable review

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Date:   Fri, 6 Dec 2019 08:35:49 -0700
From:   shuah <shuah@...nel.org>
To:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc:     linux-kernel@...r.kernel.org, torvalds@...ux-foundation.org,
        akpm@...ux-foundation.org, linux@...ck-us.net,
        patches@...nelci.org, ben.hutchings@...ethink.co.uk,
        lkft-triage@...ts.linaro.org, stable@...r.kernel.org,
        shuah <shuah@...nel.org>
Subject: Re: [PATCH 4.14 000/209] 4.14.158-stable review

On 12/6/19 8:28 AM, Greg Kroah-Hartman wrote:
> On Fri, Dec 06, 2019 at 08:24:36AM -0700, shuah wrote:
>> On 12/4/19 10:53 AM, Greg Kroah-Hartman wrote:
>>> This is the start of the stable review cycle for the 4.14.158 release.
>>> There are 209 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, 06 Dec 2019 17:50:10 +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/v4.x/stable-review/patch-4.14.158-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-4.14.y
>>> and the diffstat can be found below.
>>>
>>> thanks,
>>>
>>> greg k-h
>>>
>>
>> Starting with Linux 4.14.157, 4.9.204, and 4.4.204 stables stopped
>> booting on my system. It can't find the root disk. No config changes
>> in between.
>>
>> I have been bisecting 4.14 and 4.9 with no luck so far. I updated
>> to Ubuntu 19.10 in between.
>>
>> The only other thing I see is CONFIG_GCC_VERSION which is supported
>> starting 4.18. I don't this boot failing issue on 4.19 + up. I am
>> also chasing any links between this config and scripts and tools
>> that generate the initramfs.
> 
> Did you also upgrade your version of gcc?  I know I build those older
> kernels with the latest version of gcc for build tests, but I do not
> boot them.  I think everyone who still uses them uses older versions of
> gcc.

Yes. gcc version changed. That has been my strong suspect since I 
started poking around the CONFIG_GCC_VERSION.

I will try to force it to use older gcc and see if things improve.

> 
>> I am still debugging ... Serious for me since I can no longer test
>> older stables. :(
> 
> Ick, not good, sorry.  If you find anything bisecting, please let me
> know.
> 
Will do.

thanks,
-- Shuah