missing separator. Stop. after rebuild

[Nick Desaulniers]

On Tue, Aug 8, 2023 at 11:02 AM Masahiro Yamada <masahiroy at kernel.org> wrote:
>
> On Wed, Aug 9, 2023 at 2:31 AM Nick Desaulniers <ndesaulniers at google.com> wrote:
> >
> > $ wget https://download.01.org/0day-ci/archive/20230808/202308081050.sZEw4cQ5-lkp@intel.com/config
> > -O .config
> > $ make LLVM=1 ARCH=um -j128 arch/um/drivers/port_kern.o
> > $ make LLVM=1 ARCH=um -j128 arch/um/drivers/port_kern.o
> > arch/um/drivers/.hostaudio_kern.o.cmd:843: *** missing separator.  Stop.
> > $ sed -n -e 842p -e 843p arch/um/drivers/.hostaudio_kern.o.cmd
> > $(deps_arch/um/drivers/hostaudio_kern.o):
> > o)
> >
> > Any idea if this is some form of malformed Makefile rule, or actually
> > a compiler bug generating these .cmd files?
>
>
> Presumably, this is the same symptom as Jiri Slaby reported
> some time ago.
>
> If you run a single build for arch/um/drivers/*, bad things may happen.
>
> He reported.
>   This leads often to corrupted arch/um/arch/um/drivers/.ssl.o.cmd.
>
> https://lore.kernel.org/linux-kbuild/92f4dfe9-eb87-766b-271a-e57ada3a7dbd@kernel.org/
>
>
> A patch exists in ML.
>
> https://lore.kernel.org/all/20230721171857.3612639-2-masahiroy@kernel.org/

Thanks. That resolves the issue for me. Can you pick it up if the UML
folks don't?  It's been nearly 3 weeks.

>
>
>
> I really want to stop using core-y or drivers-y in arch/*/Makefile.
>
>
>
> --
> Best Regards
> Masahiro Yamada



-- 
Thanks,
~Nick Desaulniers