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Howlett" , Vlastimil Babka , Suren Baghdasaryan , Michal Hocko , Shuah Khan , Aishwarya TCV , linux-mm@kvack.org, linux-kselftest@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH] selftests/mm: Specify requirement for PROC_MEM_ALWAYS_FORCE=y Message-ID: References: <20260416-selftests-mm-proc-mem-always-force-v1-1-3f5865153c67@kernel.org> <17ea54b2-d43f-49a9-9dd4-d2330a8daa92@kernel.org> <5357ef55-15c0-4c66-867d-898fa7f51414@sirena.org.uk> <8260f624-7ed8-4766-8f80-0d0d4dbb5cb1@sirena.org.uk> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="WvM8zwGvYrTLpcPO" Content-Disposition: inline In-Reply-To: X-Cookie: Uh-oh!! I'm having TOO MUCH FUN!! X-Stat-Signature: ijk6dog59xkqixhzkoomzngdgxgoawpc X-Rspam-User: X-Rspamd-Server: rspam02 X-Rspamd-Queue-Id: C68F91A0011 X-HE-Tag: 1776429472-851701 X-HE-Meta: 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 yrYtVyub KLt0oqDepy0R/bP84h0zki2dWyUWJvFRkwGbtO/6vzWzDv5IvYubaYrndUb+ouQ1by/bl9NNb5zDFWODskXdF/7u1/OV3VrWHZFq4OXMSB0DuJivtNh3o2bDkLx0a6iPwOQk6JOEiUBQVtcYXS2O/wX9gZwMlYj0BMGdPbiGMKkNy1jbyuMNjWLbZU8QC0pe+uINJGkak2/Cx82ZQHToiRDIuQtmNRH1ROpOgtj1sVL+vgah3TnFMrWhqskG4zVwUYW8gLIn+T79ngt++nPx/8ryzdRCmUfdm29agXjoxv3jX+hqg2ojoFw7t9MZlNw1c8sUPgH4WqcGi/TwhFKcOImAj5akdl2NIxN+eQDn49tfi+DE= Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: --WvM8zwGvYrTLpcPO Content-Type: text/plain; charset=us-ascii Content-Disposition: inline On Fri, Apr 17, 2026 at 03:33:32PM +0300, Mike Rapoport wrote: > On Fri, Apr 17, 2026 at 12:24:25PM +0100, Mark Brown wrote: > > > { > > > - mem_fd = open("/proc/self/mem", O_RDWR); > > > - if (mem_fd < 0) > > > - ksft_exit_fail_msg("opening /proc/self/mem failed\n"); > > Yes, this is a preexisting bug in the test which I see there are more > > instances of :( > Do you mean that ksft_exit_fail_msg() should also print the test name and > the actual failure message should be ksft_perror() before? Oh, I hadn't read that closely enough - if bombing out of the entire program it's not an issue. --WvM8zwGvYrTLpcPO Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iQEzBAABCgAdFiEEreZoqmdXGLWf4p/qJNaLcl1Uh9AFAmniKZkACgkQJNaLcl1U h9CUXQf/b4HKtAKgUlKmw4k5mcM9h3raGw+Kp/OhcI3iGExLzD7Z6MM3OSS0aqf7 52XBXkTSFt3BVCT6G3dEW9nC7tc3cWzO1G4RKjk5wLX5x7Nu/Eeic2lcqqeOVawz V2i6VT90YaC4MKf+x0ydPYntbYFIYSpSMCNo88kPQKrgkOiFb9jcy85eOabL9/62 iaK9S8M9Wk8MwiAHblPbEUPqU4+9xJWvkje1e+R5RdOYjSaCWgzs3c6SdaxaG4SR M2lHD9WmhBl7Pp+OeUiOxU7jyMuWADBJQatPN7CL9bwkcXS+osuMKdb8Fw7GTqG7 FGHHo2Gy3yz9rI8i8hVdJNQqHtqrjw== =Mej+ -----END PGP SIGNATURE----- --WvM8zwGvYrTLpcPO--