linux-kernel - [PATCH v1 1/3] selftests/mm: fix va_high_addr

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Message-ID: <20251207122239.3228920-1-chuhu@redhat.com>
Date: Sun,  7 Dec 2025 20:22:37 +0800
From: Chunyu Hu <chuhu@...hat.com>
To: akpm@...ux-foundation.org,
	david@...nel.org,
	shuah@...nel.org,
	linux-mm@...ck.org
Cc: linux-kselftest@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	lorenzo.stoakes@...cle.com,
	Liam.Howlett@...cle.com,
	vbabka@...e.cz,
	rppt@...nel.org,
	surenb@...gle.com,
	mhocko@...e.com,
	chuhu@...hat.com,
	Luiz Capitulino <luizcap@...hat.com>
Subject: [PATCH v1 1/3] selftests/mm: fix va_high_addr_switch.sh return value

Patch series "Fix va_high_addr_switch.sh test failure - again", v1.

There are two issues exist for the  va_high_addr_switch test. One issue is
the test return value is ignored in va_high_addr_switch.sh. The second is
the va_high_addr_switch requires 6 hugepages but it requires 5.

Besides that, the nr_hugepages setup in run_vmtests.sh for arm64 can be
done in va_high_addr_switch.sh too.

This patch: (of 3)

The return value should be return value of va_high_addr_switch, otherwise
a test failure would be silently ignored.

Fixes: d9d957bd7b61 ("selftests/mm: alloc hugepages in va_high_addr_switch test")
CC: Luiz Capitulino <luizcap@...hat.com>
Signed-off-by: Chunyu Hu <chuhu@...hat.com>
---
 tools/testing/selftests/mm/va_high_addr_switch.sh | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/tools/testing/selftests/mm/va_high_addr_switch.sh b/tools/testing/selftests/mm/va_high_addr_switch.sh
index a7d4b02b21dd..f89fe078a8e6 100755
--- a/tools/testing/selftests/mm/va_high_addr_switch.sh
+++ b/tools/testing/selftests/mm/va_high_addr_switch.sh
@@ -114,4 +114,6 @@ save_nr_hugepages
 # 4 keep_mapped pages, and one for tmp usage
 setup_nr_hugepages 5
 ./va_high_addr_switch --run-hugetlb
+retcode=$?
 restore_nr_hugepages
+exit $retcode
-- 
2.49.0