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[69.159.169.238]) by smtp.gmail.com with ESMTPSA id d75a77b69052e-50fc91de051sm130914531cf.2.2026.04.27.10.19.07 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Mon, 27 Apr 2026 10:19:08 -0700 (PDT) Message-ID: <0e2ef2c0-d74e-4aff-bba0-6dd91dbd4e41@redhat.com> Date: Mon, 27 Apr 2026 13:19:07 -0400 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v2 43/53] selftests/mm: migration: add setup of HugeTLB pages To: Mike Rapoport Cc: Andrew Morton , David Hildenbrand , Baolin Wang , Barry Song , Dev Jain , Donet Tom , Jason Gunthorpe , John Hubbard , "Liam R. Howlett" , Lance Yang , Leon Romanovsky , Lorenzo Stoakes , Mark Brown , Michal Hocko , Nico Pache , Peter Xu , Ryan Roberts , Sarthak Sharma , Shuah Khan , Suren Baghdasaryan , Vlastimil Babka , Zi Yan , linux-kernel@vger.kernel.org, linux-kselftest@vger.kernel.org, linux-mm@kvack.org References: <20260418105539.1261536-1-rppt@kernel.org> <20260418105539.1261536-44-rppt@kernel.org> <67d7b067-97a8-4600-a9a6-46f3e797ffed@redhat.com> From: Luiz Capitulino In-Reply-To: X-Mimecast-Spam-Score: 0 X-Mimecast-MFC-PROC-ID: mkmwbCq-22dBkw4jeUfbWWr02NjphnMcO5tDW18Feb8_1777310350 X-Mimecast-Originator: redhat.com Content-Language: en-US, en-CA Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-Rspamd-Server: rspam09 X-Rspamd-Queue-Id: 1136A80003 X-Rspam-User: X-Stat-Signature: 71wih3ifx13wmqys866ozzn47pkfeemr X-HE-Tag: 1777310354-339494 X-HE-Meta: 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 kMKHv4fW EZ9HaTMc+z5oEle1C90tAdmRXweyRazejVfQpibX2luZ1zeh4GRtqNJcQaXoR3nXgKutt5dADmvJdPo+Ow8eyywo83R0U75bbZKpq4pUVMX7ZbFknEM0gBYcSDztepi3q1ZnvBtboNgQx68dPCs7BwYTfHAURSw/wdxbOnqGdpS6ImIi0QOaXJlOmsOkoUxGM73vpD3U1Ib5wZtm0yyh6H9qU9a40KAKJmUmY/wD0JuDL0gkntd/PekItJYD+jwGXoSqWJmQ2vzHezGMSWoqvoM53FU2A4nnQlkEpi4k/DXEzd6lkxRzUveEqQTrgEPQZgI1zRvDpocgWWkVoSUdDivR1S14CJlQwjaFcLEVZL/ev988pmpM8RXPpB2neGMdmQGJntslwuNeUH9/V0ASfUK61ehk5e/Da3gsof9ZMTq3XHjDiIxVnokol8KAJuzYPLoBuMSOUzSck82Y= Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On 2026-04-27 12:51, Mike Rapoport wrote: > On Mon, Apr 27, 2026 at 08:56:27AM -0400, Luiz Capitulino wrote: >> On 2026-04-26 06:58, Mike Rapoport wrote: >>>> And there's another issue: when running the migration test individually, >>>> private_anon_htlb gets skipped. I guess it's because the previous test >>>> is restoring the HugeTLB state: >>> >>> It could be. >>> >>> I pushed the updated version that has the fixes for both zombie and >>> signal issues: >>> >>> https://git.kernel.org/pub/scm/linux/kernel/git/rppt/linux.git/log/?h=mm-selftest/v3 >>> >>> Would be great if you can test it in your setup. >> >> This works! Both issues are fixed: the migration test completes w/o >> hanging and when I run it individually all tests run. > > Thanks for confirming! > >> One last question: should we munmap() the mappings in this test? Though >> I understand this goes beyond your series goal. > > We could, but the tests _exit() anyway as a part of kselftest_harness, so > it does not really matter. OK. Just to clarify that I meant exercising the munmap() path, not that we're not freeing resources. But if we know that _exit() is sufficient for this, then it's fine.