Le 03/05/2022 à 15:10, Christophe Leroy a écrit :

Le 29/04/2022 à 16:45, Naresh Kamboju a écrit :

...

Following powerpc builds failed on Linux next-20220428 and next-20220429.

Regressions found on powerpc:     - gcc-11-ppc64e_defconfig     - gcc-10-ppc64e_defconfig     - gcc-9-ppc64e_defconfig     - gcc-8-ppc64e_defconfig     - clang-14-ppc64e_defconfig     - clang-nightly-ppc64e_defconfig     - clang-13-ppc64e_defconfig

Build error:

Error: Section .bss not empty in prom_init.c make[3]: *** [arch/powerpc/kernel/Makefile:191: arch/powerpc/kernel/prom_init_check] Error 1 make[3]: Target '__build' not remade because of errors. make[2]: *** [scripts/Makefile.build:595: arch/powerpc/kernel] Error 2 make[2]: Target '__build' not remade because of errors. make[1]: *** [Makefile:1996: arch/powerpc] Error 2 powerpc64le-linux-gnu-ld: sound/core/oss/pcm_plugin.o:(.bss+0x0): multiple definition of `____cacheline_aligned'; sound/core/oss/pcm_oss.o:(.bss+0x40): first defined here make[4]: *** [scripts/Makefile.build:530: sound/core/oss/snd-pcm-oss.o] Error 1 make[4]: Target '__build' not remade because of errors. make[3]: *** [scripts/Makefile.build:595: sound/core/oss] Error 2 powerpc64le-linux-gnu-ld: sound/core/seq/seq_clientmgr.o:(.bss+0x900): multiple definition of `____cacheline_aligned'; sound/core/seq/seq_lock.o:(.bss+0x0): first defined here powerpc64le-linux-gnu-ld: sound/core/seq/seq_memory.o:(.bss+0x0): multiple definition of `____cacheline_aligned'; sound/core/seq/seq_lock.o:(.bss+0x0): first defined here powerpc64le-linux-gnu-ld: sound/core/seq/seq_queue.o:(.bss+0x140): multiple definition of `____cacheline_aligned'; sound/core/seq/seq_lock.o:(.bss+0x0): first defined here powerpc64le-linux-gnu-ld: sound/core/seq/seq_fifo.o:(.bss+0x0): multiple definition of `____cacheline_aligned'; sound/core/seq/seq_lock.o:(.bss+0x0): first defined here powerpc64le-linux-gnu-ld: sound/core/seq/seq_timer.o:(.bss+0x0): multiple definition of `____cacheline_aligned'; sound/core/seq/seq_lock.o:(.bss+0x0): first defined here powerpc64le-linux-gnu-ld: sound/core/seq/seq_system.o:(.bss+0x0): multiple definition of `____cacheline_aligned'; sound/core/seq/seq_lock.o:(.bss+0x0): first defined here powerpc64le-linux-gnu-ld: sound/core/seq/seq_ports.o:(.bss+0x0): multiple definition of `____cacheline_aligned'; sound/core/seq/seq_lock.o:(.bss+0x0): first defined here powerpc64le-linux-gnu-ld: sound/core/seq/seq_info.o:(.bss+0x40): multiple definition of `____cacheline_aligned'; sound/core/seq/seq_lock.o:(.bss+0x0): first defined here make[4]: *** [scripts/Makefile.build:530: sound/core/seq/snd-seq.o] Error 1 make[4]: Target '__build' not remade because of errors.

Reported-by: Linux Kernel Functional Testing lkft@linaro.org

steps to reproduce:

# To install tuxmake on your system globally: # sudo pip3 install -U tuxmake

tuxmake --runtime podman --target-arch powerpc --toolchain gcc-11 --kconfig ppc64e_defconfig

-- Linaro LKFT https://lkft.linaro.org

[1] https://builds.tuxbuild.com/28Sn15hB2la1PweieGMLrUdbFMQ/

Bisected to:

366e7b61ca1f115d38138236467068d8aacabcbc is the first bad commit commit 366e7b61ca1f115d38138236467068d8aacabcbc Author: Peter Collingbourne pcc@google.com Date:   Fri Apr 29 14:42:51 2022 -0700

printk: stop including cache.h from printk.h

An inclusion of cache.h in printk.h was added in 2014 in commit     c28aa1f0a847 ("printk/cache: mark printk_once test variable     __read_mostly") in order to bring in the definition of __read_mostly.  The     usage of __read_mostly was later removed in commit 3ec25826ae33 ("printk:     Tie printk_once / printk_deferred_once into .data.once for reset") which     made the inclusion of cache.h unnecessary, so remove it.

We have a small amount of code that depended on the inclusion of cache.h     from printk.h; fix that code to include the appropriate header.

This fixes a circular inclusion on arm64 (linux/printk.h -> linux/cache.h     -> asm/cache.h -> linux/kasan-enabled.h -> linux/static_key.h ->     linux/jump_label.h -> linux/bug.h -> asm/bug.h -> linux/printk.h) that     would otherwise be introduced by the next patch.

Build tested using {allyesconfig,defconfig} x {arm64,x86_64}.

Link: https://linux-review.googlesource.com/id/I8fd51f72c9ef1f2d6afd3b2cbc875aa479...

Link: https://lkml.kernel.org/r/20220427195820.1716975-1-pcc@google.com     Signed-off-by: Peter Collingbourne pcc@google.com     Cc: Alexander Potapenko glider@google.com     Cc: Andrey Konovalov andreyknvl@gmail.com     Cc: Andrey Ryabinin ryabinin.a.a@gmail.com     Cc: Catalin Marinas catalin.marinas@arm.com     Cc: David Rientjes rientjes@google.com     Cc: Dmitry Vyukov dvyukov@google.com     Cc: Eric W. Biederman ebiederm@xmission.com     Cc: Herbert Xu herbert@gondor.apana.org.au     Cc: Hyeonggon Yoo 42.hyeyoo@gmail.com     Cc: Joonsoo Kim iamjoonsoo.kim@lge.com     Cc: Kees Cook keescook@chromium.org     Cc: Pekka Enberg penberg@kernel.org     Cc: Roman Gushchin roman.gushchin@linux.dev     Cc: Vlastimil Babka vbabka@suse.cz     Signed-off-by: Andrew Morton akpm@linux-foundation.org

arch/arm64/include/asm/mte-kasan.h | 1 +  arch/arm64/include/asm/percpu.h    | 1 +  arch/csky/include/asm/processor.h  | 2 +-  drivers/firmware/smccc/kvm_guest.c | 1 +  include/linux/printk.h             | 1 -  kernel/bpf/bpf_lru_list.h          | 1 +  6 files changed, 5 insertions(+), 2 deletions(-)

I think you need to fix all files that use ____cacheline_aligned without including linux/cache.h

You can locate them with:

git grep -L linux/cache.h `git grep -l ____cacheline_aligned `

Christophe