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SubjectRe: [PATCH 4.14 000/209] 4.14.158-stable review
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On 12/6/19 9:10 AM, Guenter Roeck wrote:
> 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.
>

With the upgrade gcc version went from 8.3.0 to 9.2.1

Interestingly enough all the older 4.14, 4.9, and 4.4 kernel I have
on the system boot just fine. It fails when build newer rcs with new
gcc, boot fails.

I would really like to understand it just in case something in our
kbuild scrips is the issue.

thanks,
-- Shuah

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