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

From: shuah
Date: Fri Dec 06 2019 - 11:24:02 EST


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:
ÂÂÂÂhttps://www.kernel.org/pub/linux/kernel/v4.x/stable-review/patch-4.14.158-rc1.gz
or in the git tree and branch at:
ÂÂÂÂgit://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