Messages in this thread | | | From | Nick Desaulniers <> | Date | Tue, 13 Mar 2018 16:33:48 +0000 | Subject | Re: [PATCH v3 2/2] kbuild: Don't mess with the .cache.mk when root |
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On Mon, Mar 12, 2018 at 11:23 PM Doug Anderson <dianders@chromium.org> wrote:
> Hi,
> On Mon, Mar 12, 2018 at 11:16 PM, Ingo Molnar <mingo@kernel.org> wrote: > > > > * Douglas Anderson <dianders@chromium.org> wrote: > > > >> +# Don't create Makefile caches if running as root since they can't be deleted > >> +# easily; in the real world we might be root when doing "sudo make install" > >> +ifeq ($(shell id -u),0) > >> +export KBUILD_NOCACHE := 1 > >> +endif > > > > Please don't do this - many prominent kernel developers build their kernels as > > root - this makes the build slower for them, and also bifurcates testing.
> Ah, interesting. I hadn't realized that!
> I'm OK with dropping this patch myself. It was mostly addressing a > potential problem pointed out by Masahiro Yamada when we were talking > about .cache.mk, but I don't think anyone has actually experienced the > problems listed in the CL description.
> /bin/sh: ./.cache.mk: Permission denied
I feel like I've definitely seen that permission error before.
Is there any issue if I:
$ make clean $ make $ sudo make install <hack around> $ make
Or it's only a problem if:
$ make clean $ sudo make install <hack around> $ make -- Thanks, ~Nick Desaulniers
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