From: Dave Hansen <dave.hansen@intel.com>
To: John Hubbard <jhubbard@nvidia.com>,
Andrew Morton <akpm@linux-foundation.org>,
Jeff Xu <jeffxu@chromium.org>, Shuah Khan <shuah@kernel.org>
Cc: Andrei Vagin <avagin@google.com>,
Axel Rasmussen <axelrasmussen@google.com>,
Christian Brauner <brauner@kernel.org>,
David Hildenbrand <david@redhat.com>, Kees Cook <kees@kernel.org>,
Kent Overstreet <kent.overstreet@linux.dev>,
"Liam R . Howlett" <Liam.Howlett@oracle.com>,
Muhammad Usama Anjum <usama.anjum@collabora.com>,
Peter Xu <peterx@redhat.com>, Rich Felker <dalias@libc.org>,
linux-mm@kvack.org, linux-kselftest@vger.kernel.org,
LKML <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH v2 6/6] selftests/mm: remove local __NR_* definitions
Date: Thu, 13 Feb 2025 07:00:55 -0800 [thread overview]
Message-ID: <4dc1c0b8-c38a-455c-8dd2-dab25f912498@intel.com> (raw)
In-Reply-To: <76770ce2-f6a6-4af0-b29c-0070933a1dfb@nvidia.com>
On 2/13/25 00:04, John Hubbard wrote:
>
> 2) I'm unable to reproduce what you saw, because in ALL cases (before
> or after the commit, and with or without a revert), I get the same
> results on my Intel test machine:
>
> $ ./protection_keys_64
> has pkeys: 0
> running PKEY tests for unsupported CPU/OS
>
> ...so that's why I'm attaching a patch, in case you can verify that a
> revert fixes it.
The revert fixes it for me, thanks!
You probably just have hardware without pkey support. This isn't 100%
definitive, but you can check:
cat /proc/cpuinfo | grep ospke
If that doesn't match the "flags" line, then your hardware doesn't have
support in the first place and the message is totally expected.
prev parent reply other threads:[~2025-02-13 15:00 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-06-14 2:30 [PATCH v2 0/6] cleanups, fixes, and progress towards avoiding "make headers" John Hubbard
2024-06-14 2:30 ` [PATCH v2 1/6] selftests/mm: mseal, self_elf: fix missing __NR_mseal John Hubbard
2024-06-14 12:28 ` David Hildenbrand
2024-06-14 12:41 ` David Hildenbrand
2024-06-14 18:02 ` John Hubbard
2024-06-17 18:11 ` David Hildenbrand
2024-06-18 1:52 ` John Hubbard
2024-06-14 2:30 ` [PATCH v2 2/6] selftests/mm: mseal, self_elf: factor out test macros and other duplicated items John Hubbard
2024-06-14 12:28 ` David Hildenbrand
2024-06-14 14:56 ` Jeff Xu
2024-06-14 2:30 ` [PATCH v2 3/6] selftests/mm: mseal, self_elf: rename TEST_END_CHECK to REPORT_TEST_PASS John Hubbard
2024-06-14 12:29 ` David Hildenbrand
2024-06-14 2:30 ` [PATCH v2 4/6] selftests/mm: fix vm_util.c build failures: add snapshot of fs.h John Hubbard
2024-06-14 12:29 ` David Hildenbrand
2024-06-14 2:30 ` [PATCH v2 5/6] selftests/mm: kvm, mdwe fixes to avoid requiring "make headers" John Hubbard
2024-06-14 12:31 ` David Hildenbrand
2024-06-15 0:09 ` John Hubbard
2024-06-14 2:30 ` [PATCH v2 6/6] selftests/mm: remove local __NR_* definitions John Hubbard
2024-06-14 12:32 ` David Hildenbrand
2025-02-12 20:34 ` Dave Hansen
2025-02-12 22:31 ` John Hubbard
2025-02-13 11:32 ` Li Wang
2025-02-13 20:47 ` John Hubbard
2025-02-13 8:04 ` John Hubbard
2025-02-13 15:00 ` Dave Hansen [this message]
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