Re: [PATCH 05/12] selftests/mm: fix invocation of tests that are run via shell scripts

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On 02.06.23 03:33, John Hubbard wrote:
We cannot depend upon git to reliably retain the executable bit on shell
scripts, or so I was told several years ago while working on this same
run_vmtests.sh script. And sure enough, things such as test_hmm.sh are
lately failing to run, due to lacking execute permissions.

A nice clean way to fix this would have been to use TEST_PROGS instead
of TEST_FILES for the .sh scripts here. That tells the selftest
framework to run these (and emit a warning if the files are not
executable, but still run them anyway).

Unfortunately, run_vmtests.sh has its own run_test() routine, which does
*not* do the right thing for shell scripts.

Fix this by explicitly adding "bash" to each of the shell script
invocations. Leave fixing the overall approach to another day.

Signed-off-by: John Hubbard <jhubbard@xxxxxxxxxx>
---
  tools/testing/selftests/mm/run_vmtests.sh | 6 +++---
  1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/tools/testing/selftests/mm/run_vmtests.sh b/tools/testing/selftests/mm/run_vmtests.sh
index 4893eb60d96d..8f81432e4bac 100644
--- a/tools/testing/selftests/mm/run_vmtests.sh
+++ b/tools/testing/selftests/mm/run_vmtests.sh
@@ -242,18 +242,18 @@ if [ $VADDR64 -ne 0 ]; then
  	if [ "$ARCH" == "$ARCH_ARM64" ]; then
  		echo 6 > /proc/sys/vm/nr_hugepages
  	fi
-	CATEGORY="hugevm" run_test ./va_high_addr_switch.sh
+	CATEGORY="hugevm" run_test bash ./va_high_addr_switch.sh
  	if [ "$ARCH" == "$ARCH_ARM64" ]; then
  		echo $prev_nr_hugepages > /proc/sys/vm/nr_hugepages
  	fi
  fi # VADDR64
# vmalloc stability smoke test
-CATEGORY="vmalloc" run_test ./test_vmalloc.sh smoke
+CATEGORY="vmalloc" run_test bash ./test_vmalloc.sh smoke
CATEGORY="mremap" run_test ./mremap_dontunmap -CATEGORY="hmm" run_test ./test_hmm.sh smoke
+CATEGORY="hmm" run_test bash ./test_hmm.sh smoke
# MADV_POPULATE_READ and MADV_POPULATE_WRITE tests
  CATEGORY="madv_populate" run_test ./madv_populate

Sounds hacky, but if it gets the job done

Acked-by: David Hildenbrand <david@xxxxxxxxxx>

--
Thanks,

David / dhildenb





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