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Thu, 12 Mar 2026 11:40:52 +0000 (UTC) Received: from dell-per7425-02.rhts.eng.pek2.redhat.com (dell-per7425-02.rhts.eng.pek2.redhat.com [10.73.116.18]) by mx-prod-int-08.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTPS id 1694A180035F; Thu, 12 Mar 2026 11:40:41 +0000 (UTC) From: Chunyu Hu To: akpm@linux-foundation.org, david@kernel.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, chuhu@redhat.com, Li Wang Subject: [RESEND PATCH 1/4] selftests/mm/guard-regions: skip collapse test when thp not enabled Date: Thu, 12 Mar 2026 19:40:24 +0800 Message-ID: <20260312114027.634559-2-chuhu@redhat.com> In-Reply-To: <20260312114027.634559-1-chuhu@redhat.com> References: <20260312114027.634559-1-chuhu@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 3.4.1 on 10.30.177.111 X-Mimecast-MFC-PROC-ID: V1VzOrbDTxooMyoCaJUxmi4Mqio4UJ9Nqra1kys3KWE_1773315652 X-Mimecast-Originator: redhat.com Content-Transfer-Encoding: 8bit content-type: text/plain; charset="US-ASCII"; x-default=true X-Rspamd-Server: rspam01 X-Rspamd-Queue-Id: E3F7618000D X-Stat-Signature: e3o74k16nh87gbtugy5i9o98hkmok6im X-Rspam-User: X-HE-Tag: 1773315658-761392 X-HE-Meta: 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 I6XubfT2 AgByDIkWkG8oHvP+n94eWkc1EiAEMQXOExNlR6EQSJMLVm9wtoFtllb+AqrUZ+Hefx5Ri8/mf6DrfNFjQuylUnV+HPNOhi9XRE/jworX0pJTiRxmC+HsvmfaUntx/SkT0h0rY0sbJsKyHXEiKO9uvZuT+MrhSXxYMQxRqNXrF0J40kyOyWJ96Z8Er+h7X587FRPCWK5NEEfA3wQdDl9yvjPbEN7uFr1MQCEvKO2UI3brvljmMjbHAGr3aHvjzhZIFKGlRZkSteHPeHHR/Ha4Lihp6ZTglK+pLyrLpq+jXwEkNtaOZ2eupjol0KNUVARxsbuhEGIWnJGqtmKZ4OAZXC5KLzxRvcjQl8Rw42dhv5jRzy0Vm/WjeN6+kFA== Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: 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 # # 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 # 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 Signed-off-by: Chunyu Hu --- tools/testing/selftests/mm/guard-regions.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/tools/testing/selftests/mm/guard-regions.c b/tools/testing/selftests/mm/guard-regions.c index dbd21d66d383..897af9c512f9 100644 --- a/tools/testing/selftests/mm/guard-regions.c +++ b/tools/testing/selftests/mm/guard-regions.c @@ -21,6 +21,7 @@ #include #include #include "vm_util.h" +#include "thp_settings.h" #include "../pidfd/pidfd.h" @@ -2195,6 +2196,9 @@ TEST_F(guard_regions, collapse) char *ptr; int i; + if (!thp_is_enabled()) + SKIP(return, "Transparent Hugepages not available\n"); + /* Need file to be correct size for tests for non-anon. */ if (variant->backing != ANON_BACKED) ASSERT_EQ(ftruncate(self->fd, size), 0); -- 2.53.0