From: Mike Kravetz <mike.kravetz@oracle.com>
To: kernel test robot <yujie.liu@intel.com>
Cc: lkp@lists.01.org, lkp@intel.com,
Andrew Morton <akpm@linux-foundation.org>,
Miaohe Lin <linmiaohe@huawei.com>,
Andrea Arcangeli <aarcange@redhat.com>,
"Aneesh Kumar K.V" <aneesh.kumar@linux.vnet.ibm.com>,
Axel Rasmussen <axelrasmussen@google.com>,
David Hildenbrand <david@redhat.com>,
Davidlohr Bueso <dave@stgolabs.net>,
James Houghton <jthoughton@google.com>,
"Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>,
Michal Hocko <mhocko@suse.com>,
Mina Almasry <almasrymina@google.com>,
Muchun Song <songmuchun@bytedance.com>,
Naoya Horiguchi <naoya.horiguchi@linux.dev>,
Pasha Tatashin <pasha.tatashin@soleen.com>,
Peter Xu <peterx@redhat.com>,
Prakash Sangappa <prakash.sangappa@oracle.com>,
Sven Schnelle <svens@linux.ibm.com>,
linux-kernel@vger.kernel.org, linux-mm@kvack.org,
regressions@lists.linux.dev
Subject: Re: [hugetlbfs] 3a47c54f09: kernel-selftests.vm.run_vmtests.sh../userfaultfd_hugetlb_256_32.fail
Date: Fri, 21 Oct 2022 11:57:00 -0700 [thread overview]
Message-ID: <Y1LrfJ6ZECI0kniN@monkey> (raw)
In-Reply-To: <202210211425.92ab6e9-yujie.liu@intel.com>
On 10/21/22 16:04, kernel test robot wrote:
> Hi Mike,
>
> We noticed below commit reverts some hugetlb related code in fault path,
> and we happened to catch a "userfaultfd hugetlb" selftests failure on
> this commit. Could you please help check if this is an expected result?
>
> The commit message mentions about:
>
> "In subsequent patches, a new synchronization mechanism will be added to
> coordinate pmd sharing and eliminate this race."
>
> We noticed this failure still exists on the latest mainline head
> e35184f321518 ("Merge tag 'drm-fixes-2022-10-21' of git://anongit.freedesktop.org/drm/drm")
>
> Please kindly let us know if you'd like us to keep tracking this issue on
> mainline, or please feel free to ignore this report if this issue is not
> that important.
Fixed with commit 2ea7ff1e39cb "mm/hugetlb: fix race condition of uffd
missing/minor handling"
--
Mike Kravetz
prev parent reply other threads:[~2022-10-21 18:57 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-10-21 8:04 [hugetlbfs] 3a47c54f09: kernel-selftests.vm.run_vmtests.sh../userfaultfd_hugetlb_256_32.fail kernel test robot
2022-10-21 18:57 ` Mike Kravetz [this message]
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