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Message-ID: <CAAfSe-t7iAomibbCJQJv6d6cig8eESgHCfWCuZkRUr9Jz+aY5Q@mail.gmail.com>
Date: Tue, 29 Oct 2024 16:05:56 +0800
From: Chunyan Zhang <zhang.lyra@...il.com>
To: Andrew Morton <akpm@...ux-foundation.org>
Cc: zhangchunyan@...as.ac.cn, shuah@...nel.org, 
	Paul Walmsley <paul.walmsley@...ive.com>, alex@...ti.fr, 
	Charlie Jenkins <charlie@...osinc.com>, linux-mm@...ck.org, linux-kselftest@...r.kernel.org, 
	linux-riscv@...ts.infradead.org, linux-kernel@...r.kernel.org, 
	Palmer Dabbelt <palmer@...belt.com>
Subject: Re: [PATCH V2 4/4] selftests/mm: skip virtual_address_range tests on riscv

Hi Andrew,

On Fri, 25 Oct 2024 at 02:00, Palmer Dabbelt <palmer@...belt.com> wrote:
>
> On Tue, 08 Oct 2024 02:41:41 PDT (-0700), zhangchunyan@...as.ac.cn wrote:
> > RISC-V doesn't currently have the behavior of restricting the virtual
> > address space which virtual_address_range tests check, this will
> > cause the tests fail. So lets disable the whole test suite for riscv64
> > for now, not build it and run_vmtests.sh will skip it if it is not present.
> >
> > Reviewed-by: Charlie Jenkins <charlie@...osinc.com>
> > Signed-off-by: Chunyan Zhang <zhangchunyan@...as.ac.cn>
> > ---
> > V1: https://lore.kernel.org/linux-mm/ZuOuedBpS7i3T%2Fo0@ghost/T/
> > ---
> >  tools/testing/selftests/mm/Makefile       |  2 ++
> >  tools/testing/selftests/mm/run_vmtests.sh | 10 ++++++----
> >  2 files changed, 8 insertions(+), 4 deletions(-)
> >
> > diff --git a/tools/testing/selftests/mm/Makefile b/tools/testing/selftests/mm/Makefile
> > index 02e1204971b0..76a378c5c141 100644
> > --- a/tools/testing/selftests/mm/Makefile
> > +++ b/tools/testing/selftests/mm/Makefile
> > @@ -115,7 +115,9 @@ endif
> >
> >  ifneq (,$(filter $(ARCH),arm64 mips64 parisc64 powerpc riscv64 s390x sparc64 x86_64 s390))
> >  TEST_GEN_FILES += va_high_addr_switch
> > +ifneq ($(ARCH),riscv64)
> >  TEST_GEN_FILES += virtual_address_range
> > +endif
> >  TEST_GEN_FILES += write_to_hugetlbfs
> >  endif
> >
> > diff --git a/tools/testing/selftests/mm/run_vmtests.sh b/tools/testing/selftests/mm/run_vmtests.sh
> > index c5797ad1d37b..4493bfd1911c 100755
> > --- a/tools/testing/selftests/mm/run_vmtests.sh
> > +++ b/tools/testing/selftests/mm/run_vmtests.sh
> > @@ -347,10 +347,12 @@ if [ $VADDR64 -ne 0 ]; then
> >       # allows high virtual address allocation requests independent
> >       # of platform's physical memory.
> >
> > -     prev_policy=$(cat /proc/sys/vm/overcommit_memory)
> > -     echo 1 > /proc/sys/vm/overcommit_memory
> > -     CATEGORY="hugevm" run_test ./virtual_address_range
> > -     echo $prev_policy > /proc/sys/vm/overcommit_memory
> > +     if [ -x ./virtual_address_range ]; then
> > +             prev_policy=$(cat /proc/sys/vm/overcommit_memory)
> > +             echo 1 > /proc/sys/vm/overcommit_memory
> > +             CATEGORY="hugevm" run_test ./virtual_address_range
> > +             echo $prev_policy > /proc/sys/vm/overcommit_memory
> > +     fi
> >
> >       # va high address boundary switch test
> >       ARCH_ARM64="arm64"
>
> Acked-by: Palmer Dabbelt <palmer@...osinc.com>
>
> (I'm taking the first two as they're RISC-V bits)

Could you please pick up the last two through your tree?

Thanks,
Chunyan

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