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

Guenter Roeck
2019-12-06T16:10:18Z

On 12/6/19 7:35 AM, shuah wrote:
> 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.
>

What version of gcc are you using ? I currently use gcc 8.3.0 for all
qemu boot tests (except for 3.16 which doesn't support it, or at least
it didn't when I last checked), and have not observed any problems.

Thanks,
Guenter