Re: kernel 4.14.15 compilation using GCC 8 in unstable.......

On 27 January 2018 at 13:38, Michael Lange <klappnase@freenet.de> wrote:

Hi,

On Sat, 27 Jan 2018 13:12:13 +0000
Michael Fothergill <michael.fothergill@gmail.com> wrote:

> I think I will sign up on the gcc gnu help page and ask people if they
> have a test case file I can run to 100% confirm the GCC 8 compiler is
> running properly.
> Once I am convinced it is then the next stage is to try to talk to the
> developers who maintain the make-kpkg program.

are you still using gcc-8? Here this one didn't work at all for me,
compiling always aborted early with compiler errors. It worked
immediately though after I removed ggc-8 and upgraded gcc-7 to v. 7.3
from sid.

Regards

Michael

I have sent the kernel-source package maintainer the following email:

******************************************

Dear Sir,

I understand that you are the package maintainer for kernel-source ie make-kpkg etc. within debian.

I am running debian unstable (Sid)on an amd64 kaveri box.

I installed GCC 8 from the experimental repository. I am trying to use it to compile the kernel 4.14.15 using make-kpkg to use the fixes for the meltdown and spectre vulnerabilities.

The output from doing this is here:

https://pastebin.com/sgrhdCKW

Make-kpkg did not create any linux-image file ......?!

I copied over the config file from/boot and ran make-clean and the command: yes "" | make oldconfig before running make-kpkg.

Kernel compilations I do in gentoo (I am a gentoo user as well as a debian user) usually take a while.

This ran too quickly I think.

Something is not quite right here I think.

It might be that more dependent packages needed to be installed to make GCC8 run happily.

As a result I have sent an email to the gnu gcc help site (gcc-help@gcc.gnu.org) asking them for a test file to check that GCC8 is running correctly.

But, maybe you might say that make-kpkg needs to be upgraded in some way to work correctly here and GCC 8 ran OK.......

The discussions on these two threads are relevant to this case:

https://lists.debian.org/debian-user/2018/01/msg01159.html

https://lists.debian.org/debian-user/2018/01/msg01002.html

We are all trying to compile kernels that defeat the meltdown and spectre vulnerabilities.

Comments appreciated.

Regards

etc

*************************

Maybe will end up having to quit with GCC8 but it I am giving it one last attempt here.

Cheers

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