linux-kernel - Re: [PATCH v4 7/7] selftests/mm: skip hugepage-mremap test if userfaultfd unavailable

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [day] [month] [year] [list]

Message-ID: <20250816144621.3d4ocd44slizboxy@master>
Date: Sat, 16 Aug 2025 14:46:21 +0000
From: Wei Yang <richard.weiyang@...il.com>
To: Aboorva Devarajan <aboorvad@...ux.ibm.com>
Cc: akpm@...ux-foundation.org, Liam.Howlett@...cle.com,
	lorenzo.stoakes@...cle.com, shuah@...nel.org, pfalcato@...e.de,
	david@...hat.com, ziy@...dia.com, baolin.wang@...ux.alibaba.com,
	npache@...hat.com, ryan.roberts@....com, dev.jain@....com,
	baohua@...nel.org, richard.weiyang@...il.com, linux-mm@...ck.org,
	linux-kselftest@...r.kernel.org, linux-kernel@...r.kernel.org,
	donettom@...ux.ibm.com, ritesh.list@...il.com
Subject: Re: [PATCH v4 7/7] selftests/mm: skip hugepage-mremap test if
 userfaultfd unavailable

On Sat, Aug 16, 2025 at 09:31:13AM +0530, Aboorva Devarajan wrote:
>Gracefully skip test if userfaultfd is not supported (ENOSYS) or not
>permitted (EPERM), instead of failing.  This avoids misleading failures
>with clear skip messages.
>
>--------------
>Before Patch
>--------------
>~ running ./hugepage-mremap
>...
>~ Bail out! userfaultfd: Function not implemented
>~ Planned tests != run tests (1 != 0)
>~ Totals: pass:0 fail:0 xfail:0 xpass:0 skip:0 error:0
>~ [FAIL]
>not ok 4 hugepage-mremap # exit=1
>
>--------------
>After Patch
>--------------
>~ running ./hugepage-mremap
>...
>~ ok 2 # SKIP userfaultfd is not supported/not enabled.
>~ 1 skipped test(s) detected.
>~ Totals: pass:0 fail:0 xfail:0 xpass:0 skip:1 error:0
>~ [SKIP]
>ok 4 hugepage-mremap # SKIP
>
>Co-developed-by: Donet Tom <donettom@...ux.ibm.com>
>Signed-off-by: Donet Tom <donettom@...ux.ibm.com>
>Acked-by: David Hildenbrand <david@...hat.com>
>Reviewed-by: Zi Yan <ziy@...dia.com>
>Signed-off-by: Aboorva Devarajan <aboorvad@...ux.ibm.com>

Reviewed-by: Wei Yang <richard.weiyang@...il.com>

-- 
Wei Yang
Help you, Help me