linux-kernel - Re: [next] riscv: Linux next-20220404 riscv defconfig builds failed.

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Date:   Wed, 6 Apr 2022 09:13:15 +0800
From:   Guo Ren <guoren@...nel.org>
To:     Palmer Dabbelt <palmer@...osinc.com>
Cc:     Nathan Chancellor <nathan@...nel.org>,
        Naresh Kamboju <naresh.kamboju@...aro.org>,
        Linux Next Mailing List <linux-next@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        linux-riscv <linux-riscv@...ts.infradead.org>,
        lkft-triage@...ts.linaro.org, regressions@...ts.linux.dev,
        Stephen Rothwell <sfr@...b.auug.org.au>,
        Guo Ren <guoren@...ux.alibaba.com>,
        Heiko Stübner <heiko@...ech.de>,
        Arnd Bergmann <arnd@...db.de>,
        Paul Walmsley <paul.walmsley@...ive.com>,
        Albert Ou <aou@...s.berkeley.edu>
Subject: Re: [next] riscv: Linux next-20220404 riscv defconfig builds failed.

On Wed, Apr 6, 2022 at 12:15 AM Palmer Dabbelt <palmer@...osinc.com> wrote:
>
> On Mon, 04 Apr 2022 22:17:24 PDT (-0700), guoren@...nel.org wrote:
> > On Tue, Apr 5, 2022 at 12:57 AM Nathan Chancellor <nathan@...nel.org> wrote:
> >>
> >> On Mon, Apr 04, 2022 at 03:28:41PM +0530, Naresh Kamboju wrote:
> >> > Linux next-20220404 riscv defconfig builds failed.
> >> >
> >> > Regressions found on riscv:
> >> >    - riscv-riscv-clang-14-defconfig
> >> >    - riscv-riscv-gcc-10-defconfig
> >> >    - riscv-riscv-clang-13-defconfig
> >> >    - riscv-riscv-clang-12-defconfig
> >> >    - riscv-riscv-clang-11-defconfig
> >> >    - riscv-riscv-gcc-11-defconfig
> >> >    - riscv-riscv-gcc-8-defconfig
> >> >    - riscv-riscv-gcc-9-defconfig
> >> >    - riscv-riscv-clang-nightly-defconfig
> >> >
> >> >
> >> > arch/riscv/kernel/compat_signal.c:7:10: fatal error:
> >> > linux/tracehook.h: No such file or directory
> >> >   7 | #include <linux/tracehook.h>
> >> >     |          ^~~~~~~~~~~~~~~~~~~
> >> > compilation terminated.
> >> > make[3]: *** [scripts/Makefile.build:289:
> >> > arch/riscv/kernel/compat_signal.o] Error 1
> >>
> >> For what it's worth, I also see:
> >>
> >> $ make -skj"$(nproc)" ARCH=riscv CROSS_COMPILE=riscv64-linux-gnu- defconfig all
> >> arch/riscv/kernel/compat_vdso/compat_vdso.lds.S:3:10: fatal error: ../vdso/vdso.lds.S: No such file or directory
> >>     3 | #include <../vdso/vdso.lds.S>
> >>       |          ^~~~~~~~~~~~~~~~~~~~
> >> compilation terminated.
> >> make[2]: *** [scripts/Makefile.build:462: arch/riscv/kernel/compat_vdso/compat_vdso.lds] Error 1
> >> arch/riscv/kernel/compat_vdso/rt_sigreturn.S:3:10: fatal error: ../vdso/rt_sigreturn.S: No such file or directory
> >>     3 | #include <../vdso/rt_sigreturn.S>
> >>       |          ^~~~~~~~~~~~~~~~~~~~~~~~
> >> compilation terminated.
> >> arch/riscv/kernel/compat_vdso/note.S:3:10: fatal error: ../vdso/note.S: No such file or directory
> >>     3 | #include <../vdso/note.S>
> >>       |          ^~~~~~~~~~~~~~~~
> >> compilation terminated.
> >> arch/riscv/kernel/compat_vdso/getcpu.S:3:10: fatal error: ../vdso/getcpu.S: No such file or directory
> >>     3 | #include <../vdso/getcpu.S>
> >>       |          ^~~~~~~~~~~~~~~~~~
> >> compilation terminated.
> >> make[2]: *** [arch/riscv/kernel/compat_vdso/Makefile:43: arch/riscv/kernel/compat_vdso/rt_sigreturn.o] Error 1
> >> make[2]: *** [arch/riscv/kernel/compat_vdso/Makefile:43: arch/riscv/kernel/compat_vdso/note.o] Error 1
> >> make[2]: *** [arch/riscv/kernel/compat_vdso/Makefile:43: arch/riscv/kernel/compat_vdso/getcpu.o] Error 1
> >> arch/riscv/kernel/compat_vdso/flush_icache.S:3:10: fatal error: ../vdso/flush_icache.S: No such file or directory
> >>     3 | #include <../vdso/flush_icache.S>
> >>       |          ^~~~~~~~~~~~~~~~~~~~~~~~
> >> compilation terminated.
> >> make[2]: *** [arch/riscv/kernel/compat_vdso/Makefile:43: arch/riscv/kernel/compat_vdso/flush_icache.o] Error 1
> >>
> >> I am guessing this code was never tested with $(srctree) == $(objtree).
> > Thx for pointing it out:
> > I always use:
> > make -skj"$(nproc)" ARCH=riscv
> > CROSS_COMPILE=riscv64-unknown-linux-gnu- EXTRA_CFLAGS+=-g
> > O=../build-riscv/ defconfig all
> >
> > When I change to:
> > make -skj"$(nproc)" ARCH=riscv
> > CROSS_COMPILE=riscv64-unknown-linux-gnu- EXTRA_CFLAGS+=-g defconfig
> > all
> >
> > I got your problem.
>
> Just to be clear: this one wasn't supposed to go in via the csky tree,
> and had other build issues that were being found by the autobuilders
> (which is why it hadn't gone in via the riscv tree).  I do in-tree
> builds somewhat regularly so that probably would have caught it if
> nothing else did, but my guess is that some other autobuilder would have
> found it first (some of the earlier patches
The problem and other build issues (arm64 & 5.18-rc1 conflict) all
have been solved in v12:
https://lore.kernel.org/linux-riscv/20220405071314.3225832-1-guoren@kernel.org/

>
> Guo: please stop pushing things to linux-next that break the builds
> and/or aren't aimed at your tree.  This just makes things unnecessarly
> complicated.  If you don't want to deal with the build issues that's OK,
> just LMK when you send the patch sets out and I'll deal with them, but
> having linux-next's build break causes fallout for a lot of users.
Yesterday, I made my
https://github.com/c-sky/csky-linux/commits/linux-next with
linux-5.18-rc1 tag commit version.
So this only affected linux-next-20220404.


-- 
Best Regards
 Guo Ren

ML: https://lore.kernel.org/linux-csky/