Re: gcc-10: kernel stack is corrupted and fails to boot

[Borislav Petkov]

On Wed, May 13, 2020 at 11:49:49PM +0200, Arnd Bergmann wrote:
> Right, in particular since Linus started building with gcc-10 already and
> would likely soon run into that problem if he hasn't already ;-)

Oh noo, we don't want Linus' kernel broken. ;-)

We will send him the fix this weekend.

Looking at that branch:

https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git/log/?h=x86/build

I think we can send the whole thing even.

Linus, shout if you'd prefer only the last three commits there:

950a37078aa0 x86/build: Use $(CONFIG_SHELL)
f670269a42bf x86: Fix early boot crash on gcc-10, next try
73da86741e7f x86/build: Check whether the compiler is sane

but the other three from Masahiro are simple cleanups:

675a59b7dec6 x86/boot/build: Add phony targets in arch/x86/boot/Makefile to PHONY
30ce434e44d7 x86/boot/build: Make 'make bzlilo' not depend on vmlinux or $(obj)/bzImage
e3c7c1052271 x86/boot/build: Add cpustr.h to targets and remove clean-files

which should be ok to take now too AFAICT.

Thx.

-- 
Regards/Gruss,
    Boris.

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