The patch titled
Subject: selftests/mm: va_high_addr_switch should skip unsupported arm64 configs
has been added to the -mm mm-unstable branch. Its filename is
selftests-mm-va_high_addr_switch-should-skip-unsupported-arm64-configs.patch
This patch will shortly appear at
https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/selftests-mm-va_high_addr_switch-should-skip-unsupported-arm64-configs.patch
This patch will later appear in the mm-unstable branch at
git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
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------------------------------------------------------
From: Ryan Roberts <ryan.roberts@xxxxxxx>
Subject: selftests/mm: va_high_addr_switch should skip unsupported arm64 configs
Date: Mon, 24 Jul 2023 09:25:19 +0100
va_high_addr_switch has a mechanism to determine if the tests should be
run or skipped (supported_arch()). This currently returns unconditionally
true for arm64. However, va_high_addr_switch also requires a large
virtual address space for the tests to run, otherwise they spuriously
fail.
Since arm64 can only support VA > 48 bits when the page size is 64K, let's
decide whether we should skip the test suite based on the page size. This
reduces noise when running on 4K and 16K kernels.
Link: https://lkml.kernel.org/r/20230724082522.1202616-6-ryan.roberts@xxxxxxx
Signed-off-by: Ryan Roberts <ryan.roberts@xxxxxxx>
Reviewed-by: David Hildenbrand <david@xxxxxxxxxx>
Cc: Florent Revest <revest@xxxxxxxxxxxx>
Cc: Jérôme Glisse <jglisse@xxxxxxxxxx>
Cc: John Hubbard <jhubbard@xxxxxxxxxx>
Cc: Mark Brown <broonie@xxxxxxxxxx>
Cc: Peter Xu <peterx@xxxxxxxxxx>
Cc: Shuah Khan <shuah@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
tools/testing/selftests/mm/va_high_addr_switch.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/tools/testing/selftests/mm/va_high_addr_switch.c~selftests-mm-va_high_addr_switch-should-skip-unsupported-arm64-configs
+++ a/tools/testing/selftests/mm/va_high_addr_switch.c
@@ -292,7 +292,7 @@ static int supported_arch(void)
#elif defined(__x86_64__)
return 1;
#elif defined(__aarch64__)
- return 1;
+ return getpagesize() == PAGE_SIZE;
#else
return 0;
#endif
_
Patches currently in -mm which might be from ryan.roberts@xxxxxxx are
mm-allow-deferred-splitting-of-arbitrary-large-anon-folios.patch
mm-implement-folio_remove_rmap_range.patch
mm-batch-zap-large-anonymous-folio-pte-mappings.patch
selftests-line-buffer-test-programs-stdout.patch
selftests-mm-skip-soft-dirty-tests-on-arm64.patch
selftests-mm-enable-mrelease_test-for-arm64.patch
selftests-mm-fix-thuge-gen-test-bugs.patch
selftests-mm-va_high_addr_switch-should-skip-unsupported-arm64-configs.patch
selftests-mm-make-migration-test-robust-to-failure.patch
selftests-mm-optionally-pass-duration-to-transhuge-stress.patch
selftests-mm-run-all-tests-from-run_vmtestssh.patch
