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From: "David Hildenbrand (Arm)" <david@kernel.org>
To: Chunyu Hu <chuhu@redhat.com>,
	akpm@linux-foundation.org, shuah@kernel.org, linux-mm@kvack.org,
	ljs@kernel.org
Cc: linux-kselftest@vger.kernel.org, linux-kernel@vger.kernel.org,
	lorenzo.stoakes@oracle.com, Liam.Howlett@oracle.com,
	vbabka@suse.cz, rppt@kernel.org, surenb@google.com,
	mhocko@suse.com, ziy@nvidia.com, baolin.wang@linux.alibaba.com,
	npache@redhat.com, ryan.roberts@arm.com, dev.jain@arm.com,
	baohua@kernel.org, lance.yang@linux.dev,
	Li Wang <liwang@redhat.com>
Subject: Re: [RESEND PATCH 1/4] selftests/mm/guard-regions: skip collapse test when thp not enabled
Date: Thu, 12 Mar 2026 20:48:52 +0100	[thread overview]
Message-ID: <afd70015-bdda-40a2-a842-a2d1dd6f4a20@kernel.org> (raw)
In-Reply-To: <20260312114027.634559-2-chuhu@redhat.com>

On 3/12/26 12:40, Chunyu Hu wrote:
> When thp is not available, just skip the collape tests to avoid the false
> positive.
> 
> Without the change, run with a thp disabled kernel:
>   ./run_vmtests.sh -t madv_guard
>   <snip/>
>   # #  RUN           guard_regions.file.multi_vma ...
>   # #            OK  guard_regions.file.multi_vma
>   # ok 89 guard_regions.file.multi_vma
>   # #  RUN           guard_regions.file.basic ...
>   # #            OK  guard_regions.file.basic
>   # ok 90 guard_regions.file.basic
>   # # FAILED: 87 / 90 tests passed.
>   # # 17 skipped test(s) detected. Consider enabling relevant config options to improve coverage.
>   # # Totals: pass:70 fail:3 xfail:0 xpass:0 skip:17 error:0
>   # [FAIL]
>   not ok 1 guard-regions # exit=1
>   hwpoison_inject
>   # SUMMARY: PASS=0 SKIP=0 FAIL=1
> 
> With this change, run with thp disabled kernel:
>   ./run_vmtests.sh -t madv_guard
>   <snip/>
>   # ok 90 guard_regions.file.basic
>   # # PASSED: 90 / 90 tests passed.
>   # # 20 skipped test(s) detected. Consider enabling relevant config options to improve coverage.
>   # # Totals: pass:70 fail:0 xfail:0 xpass:0 skip:20 error:0
>   # [PASS]
>   ok 1 guard-regions
>   hwpoison_inject
>   # SUMMARY: PASS=1 SKIP=0 FAIL=0
>   1..1
> CC: Li Wang <liwang@redhat.com>
> Signed-off-by: Chunyu Hu <chuhu@redhat.com>
> ---

Acked-by: David Hildenbrand (Arm) <david@kernel.org>

-- 
Cheers,

David


  parent reply	other threads:[~2026-03-12 19:49 UTC|newest]

Thread overview: 32+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-03-12 11:40 [PATCH 0/4] selftests/mm: skip several tests when thp is not available Chunyu Hu
2026-03-12 11:40 ` [RESEND PATCH 1/4] selftests/mm/guard-regions: skip collapse test when thp not enabled Chunyu Hu
2026-03-12 13:58   ` Zi Yan
2026-03-12 19:48   ` David Hildenbrand (Arm) [this message]
2026-03-13 15:35   ` Lorenzo Stoakes (Oracle)
2026-03-12 11:40 ` [RESEND PATCH 2/4] selftests/mm: soft-dirty: skip two tests when thp is not available Chunyu Hu
2026-03-12 14:00   ` Zi Yan
2026-03-12 19:43   ` David Hildenbrand (Arm)
2026-03-13 17:37   ` Lorenzo Stoakes (Oracle)
2026-03-12 11:40 ` [RESEND PATCH 3/4] selftests/mm: split_huge_page_test: skip the test " Chunyu Hu
2026-03-12 14:11   ` Zi Yan
2026-03-13  2:29     ` Chunyu Hu
2026-03-13 15:15     ` Mike Rapoport
2026-03-13 15:27       ` Zi Yan
2026-03-13 18:00         ` Lorenzo Stoakes (Oracle)
2026-03-16  3:51         ` Chunyu Hu
2026-03-16  3:46       ` Chunyu Hu
2026-03-12 19:44   ` David Hildenbrand (Arm)
2026-03-13  2:25     ` Chunyu Hu
2026-03-12 11:40 ` [RESEND PATCH 4/4] selftests/mm: transhuge_stress: skip the test when thp " Chunyu Hu
2026-03-12 14:11   ` Zi Yan
2026-03-12 19:46   ` David Hildenbrand (Arm)
2026-03-13  2:43     ` Chunyu Hu
2026-03-13 18:01       ` Lorenzo Stoakes (Oracle)
2026-03-12 14:03 ` [PATCH 0/4] selftests/mm: skip several tests when thp is " Mike Rapoport
2026-03-13  0:26   ` Chunyu Hu
2026-03-13 15:19     ` Mike Rapoport
2026-03-13 15:40       ` Lorenzo Stoakes (Oracle)
2026-03-14  0:22         ` Chunyu Hu
2026-03-14  0:27       ` Chunyu Hu
2026-03-12 19:39 ` David Hildenbrand (Arm)
2026-03-13  2:21   ` Chunyu Hu

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