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Date: Mon, 27 Apr 2026 18:51:21 +0200
From: Mike Rapoport <rppt@kernel.org>
To: Luiz Capitulino <luizcap@redhat.com>
Cc: Andrew Morton <akpm@linux-foundation.org>,
	David Hildenbrand <david@kernel.org>,
	Baolin Wang <baolin.wang@linux.alibaba.com>,
	Barry Song <baohua@kernel.org>, Dev Jain <dev.jain@arm.com>,
	Donet Tom <donettom@linux.ibm.com>, Jason Gunthorpe <jgg@ziepe.ca>,
	John Hubbard <jhubbard@nvidia.com>,
	"Liam R. Howlett" <Liam.Howlett@oracle.com>,
	Lance Yang <lance.yang@linux.dev>,
	Leon Romanovsky <leon@kernel.org>, Lorenzo Stoakes <ljs@kernel.org>,
	Mark Brown <broonie@kernel.org>, Michal Hocko <mhocko@suse.com>,
	Nico Pache <npache@redhat.com>, Peter Xu <peterx@redhat.com>,
	Ryan Roberts <ryan.roberts@arm.com>,
	Sarthak Sharma <sarthak.sharma@arm.com>,
	Shuah Khan <shuah@kernel.org>,
	Suren Baghdasaryan <surenb@google.com>,
	Vlastimil Babka <vbabka@kernel.org>, Zi Yan <ziy@nvidia.com>,
	linux-kernel@vger.kernel.org, linux-kselftest@vger.kernel.org,
	linux-mm@kvack.org
Subject: Re: [PATCH v2 43/53] selftests/mm: migration: add setup of HugeTLB
 pages
Message-ID: <ae-UCVba16jg3-gR@kernel.org>
References: <20260418105539.1261536-1-rppt@kernel.org>
 <20260418105539.1261536-44-rppt@kernel.org>
 <a8510cbd-4a30-460c-b870-a250ceb8a522@redhat.com>
 <ae3v1cyMLbcvJtYW@kernel.org>
 <67d7b067-97a8-4600-a9a6-46f3e797ffed@redhat.com>
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In-Reply-To: <67d7b067-97a8-4600-a9a6-46f3e797ffed@redhat.com>

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.

-- 
Sincerely yours,
Mike.