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Wed, 15 Jul 2026 16:03:19 -0400 (EDT) Message-ID: <1756daaa19952f4a3210700ba4ecfde8aa3724a4.camel@pbarker.dev> Subject: Re: [yocto-patches] [pseudo] [PATCH 2/2] tests: Add close_range() test From: Paul Barker To: yocto-patches@lists.yoctoproject.org Cc: Richard Purdie , Mark Hatle , Randy MacLeod , Vincent Haupert , Babanpreet Singh Date: Wed, 15 Jul 2026 21:03:17 +0100 In-Reply-To: <20260715054142.7-3-bbnpreetsingh@gmail.com> References: <20260715054142.7-1-bbnpreetsingh@gmail.com> <20260715054142.7-3-bbnpreetsingh@gmail.com> Autocrypt: addr=paul@pbarker.dev; prefer-encrypt=mutual; keydata=mQINBGC756sBEADXL6cawsZRrDvICz9Y1SG0/lW1me4xpq36obh7a0IGAzp3ywNRb/4MO DTqP4+DD0cIFuDY41/N17g0sNlp8z+/k/IIDmNPtYQOTVmAkrkdDU4BP8dD3Cp1PUw6nrbInfujAJ NrVM0IVDkwKTbL2Nu1P+xns4MIpF9Kj4XN5celYJ9vEJ2n0Bo0nO5T5vg46dihIaDl+24iNIHSsHq YyEdMBfY8kY2RulpaAyFOuaaHdIeDkejVvO5xLSiYLjB5qrRhgH134lJXsuLOsFQ64ybGECuOasnb auevsPBAaroQW0pqVb9FneGrWHxMCLlQHJRqQJRdVa6bsUdp6NWra8/0msPawSrFwGQdfJBTA3aXJ C2CG1JxEgj6QQjEQA49DSjgzdhInbiIK8Vbp/zedM4aVue7qJnwPMTFQM9lYx63b7wLN4Tu8B9YZ0 UFdSwMCJuqmYGsYRUYdwM3ArjS0VO6WpU+HBKvzLK5GQfUTSM8KaZ5eA2Uo2ain8SSZb+WptUYKpx F9jbtCPbjpZKzGuX4iHFl9eT75TM9iXJNGAjB5xigkADLwVfPoJ5E53S+KdNVuOWHugyLMPNAQHOw pw5Rey+0zxyzPd4wphutc93UIU5g/029ngAc7DuKCq12jl7fhkjqFlFtYPIc1k7nd+RSezmH/qRes bMErHSX1MBSZQARAQABtB5QYXVsIEJhcmtlciA8cGF1bEBwYmFya2VyLmRldj6JAlcEEwEIAEECGw EFCwkIBwIGFQoJCAsCBBYCAwECHgECF4ACGQEWIQSYsqrBAKw/grtdVGd0l1yBt+ZrrAUCaWoNAgU JCxiQFgAKCRB0l1yBt+ZrrLhdD/sH+qTaxCDUg47eW329yJWCDZmO+iuYzNSyHMs1x0DHKNIQQ8zN pA2S/de4jElQuPHjw/IS8B3VmM62Wuq5vHuxNlFv9IMwrwqi6zhCDui8+nCN/AQGGXousJI/SeZjm Y5gS9cqh4vNY+huqEEfdTFXIfTBRkmnvYozSO2uDB3EMuiWgBlw2uLrtmkvPLn/m/GvEouLNox6wv tcJcIbL59a0+3jv/m7pnWoZXOkWmKQnfFWikqjuKCISNU0gzBSL4UOj8gtQ2z+vu7ffi29b6SV5IL m1yzdbkigEn4HL44lz3N+oHZ3wWsRqqeyGSX5fCfx3tGWg6scZQrpsjT5yq+LiffiXVNpjeJ9KzQw 0cbAZ/9uhk1sWBroP+/gMhsWjlbFYXVlRvkNKGPI22eZtOEz4jF6OrOONyOoY3i26niJUyIgdBpca H0hKUSVQ8VnG7qVTNrQk9BbeoSszqRwViN7lfyVtK9b1TCFuGewOETGn0TPvSzruYCtD3CLm7mjuX AMBpIGoRUiCFVmF1hlOgqDyH4F6zRTHhKLpfmNzfQcg+Uo147Q2IHpoh0mJsL4FEZEI8hFyecX1Pq 7HqnvxGD2OhCof1Z6LDxptX0wbgocnYFNxN5S1owcXZUQOFnzYLlLugrcEjlGCm4Gn7k4SiFERSBj UFsQgIhw/7lVVn4o4rQjUGF1bCBCYXJrZXIgPHBhdWxAcGF1bGJhcmtlci5tZS51az6JAlQEEwEIA D4CGwEFCwkIBwIGFQoJCAsCBBYCAwECHgECF4AWIQSYsqrBAKw/grtdVGd0l1yBt+ZrrAUCaWoNAw UJCxiQFgAKCRB0l1yBt+ZrrHy+EADNMt+ewz8H7BUKpEMMhpaA1VxyXO5IqlKXS0gElMgHYXl7L7C 0/qLfRH96vwVD33zM+f0Vl9aWWkom/k8s42tLyPvX7D5zTrj3r5muJ+d9dXWGwBFXxXlE9YjSP26K bYfRusmRHbbEPlLPSnrr9KYS2FGVD6ViRNhhVguflgPv2i18+fNBE3YyByfNCiQgO/SgaSdh172Ql tuYE1Chk6FD45tCUv3dI9lO2PlVwrciiVYvIv/jiTDEwZOISOClTE/Ha18pxDJfLhS8QQnLWuBNX6 HUkLi78fVmVYbcWIkTuSHjfNoGTMaFijMg9Wl6poFrY++Pl0S40681zEIrwZhW5pKoqXoaElt29Yf OwVo6BIsSOLEqKiWsdP7PJTaJYU1ovnshBcOmuXMgc13AjQ4AhEGqI1TaEJ/E1jEDDyTQFeWgrfew YaWdqpgiDmRMTj/tIGVj9iy7qZQICUUtlfm0QK6w6M7qq0GdO2o+S3uVF6y2AxQo8l9LSHiW9O35I juR37zeqv72puYyOteVYJsJaw999HUmhXc/X/J9FQFw8twxPKDLLu+w8MqDo9bhllzR93Zy/OShuG yGybcX3DKO2R+AQ90tXLbxKmHLtrnG/zyDPhLv/LGD480v5hEoT+IS0u9wPD2vP5q36a5DtzqXA/7 t9PCamLoCvZLleg7GY7QbUGF1bCBCYXJrZXIgPHBhdWxAcGJya3IudWs+iQJeBDABCgBIFiEEmLKq wQCsP4K7XVRndJdcgbfma6wFAmlqDRwqHSBwYnJrci51ayBkb21haW4gd2lsbCBiZSBhbGxvd2VkI HRvIGxhcHNlAAoJEHSXXIG35muspk0P/1G08N6zGSdw2p8+8f/1HhaYEb9KdQHT1JmQfZUrIHIpD2 ELNb91Z6Pz197d/igGpox1dzYOwE0WolWo44ZHX2yw+p9V+HJAUKRe0SPc1iNLkTzaAZ7oYJ1DnFh aaqZi4VtKKabKeorJjcDvl2apMwT0agRuDklU97n++ZUuXIEo1Z9uRqEvXz0iTSY7wPxwfoVOQsgf dN1cBLd9OpoOtJRdDJzQUYqjNoQi+5M6KRfBxPLZkmYb4uCGlp1H4AV50eC61j84LBg1ItvU2u+Fx X2JB7lHTswubprD2ZsSwp1VziU6pUj3vtslMWKpBGslpLtnaO561dihGyElayMd4VFg7VR/TsglJv A10EDs2DMhoYPfRQWvwlr5+jPP6s9H8KSTCGFvQt438rP/gk0lcEZUJK0iE2/yq5gQfaCNI5FLN7C q8LVr00oS4doXfmFFxMq6z1rs5SXZorWssjG7v5DILnPxLqYloQK/ebM5Ixbzm0Lq/8vWL7sw7yOH JVYCHCApGzKNii6rYyHdi0K8UwvpD++GCWLyvbgP/H3l5FqL63gAN0Rw1CO5r22+SmG7aOmekJH3N ChZPI3NMLnKZPJC8ZQZ4S8yb5oA3rqTA2DMODvsrEVlaB2cQ6IWHSa/mvBwA8Ias3771cp4fZS7W7 LUewj8JVy0aJsGTwI4invl Content-Type: multipart/signed; micalg="pgp-sha512"; protocol="application/pgp-signature"; boundary="=-gP/lHipdJl7vD9oGCcZf" User-Agent: Evolution 3.52.3-0ubuntu1.1 MIME-Version: 1.0 List-Id: X-Webhook-Received: from 45-33-107-173.ip.linodeusercontent.com [45.33.107.173] by aws-us-west-2-korg-lkml-1.web.codeaurora.org with HTTPS for ; Wed, 15 Jul 2026 20:03:27 -0000 X-Groupsio-URL: https://lists.yoctoproject.org/g/yocto-patches/message/4483 --=-gP/lHipdJl7vD9oGCcZf Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable On Wed, 2026-07-15 at 05:41 +0000, Baban via lists.yoctoproject.org wrote: > Covers the ENOSYS regression itself, that the wrapper agrees with the > kernel about bad arguments, and the part that actually needs the care: > pseudo keeps its own descriptors in the range, including the connection > to its server, and has to come out of a close_range(3, ~0U, 0) still > tracking ownership. >=20 > close_range() needs a 5.9 kernel, so the shell wrapper probes for it > with PSEUDO_DISABLED=3D1 before running anything. Asking with pseudo out > of the way keeps a wrapper which has gone back to returning ENOSYS from > passing itself off as an old kernel and quietly skipping the test it is > supposed to fail. >=20 > [YOCTO #16339] >=20 > AI-Generated: Uses Claude (claude-opus-4-8) > Signed-off-by: Babanpreet Singh Hi, Thanks for including a test case! I have a couple of bits of feedback. The close_range() syscall was added in Linux 5.9, the CLOSE_RANGE_CLOEXEC flag was added in Linux 5.11. So on Linux 5.9/5.10, the probe will succeed but the test will fail. There is also no test coverage for CLOSE_RANGE_UNSHARED. Otherwise this looks pretty good, please send a v2. Best regards, --=20 Paul Barker --=-gP/lHipdJl7vD9oGCcZf Content-Type: application/pgp-signature; name="signature.asc" Content-Description: This is a digitally signed message part -----BEGIN PGP SIGNATURE----- iIcEABYKAC8WIQSzjPXf5Y1BDWhU2iCrY1Tsnbr0bgUCalfnhREccGF1bEBwYmFy a2VyLmRldgAKCRCrY1Tsnbr0bu5OAQC8HUjwdCv6qYYx5lf2u9TmcmglfVqvTFu2 TD+VLWaAKAD+Iy3DyznZFw9/YQoklB2/ezTT8aC4aqOpiO9Ddk/ZHg4= =Fo0L -----END PGP SIGNATURE----- --=-gP/lHipdJl7vD9oGCcZf--