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Switch, PS5 ou Xbox Series : quelle console acheter en 2025 ?

Microsoft, Sony ou Nintendo ? Choisir son camp n'est pas toujours évident. D'autant plus que les consoles PS5, Xbox et Switch ont toutes leurs propres déclinaisons. Pour vous aider à y voir plus clair, Numerama a fait le tri des informations essentielles (prix, catalogues de jeux, performances…) afin de vous guider vers LA console de salon qui vous fera vibrer.

[$] The state of guest_memfd

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Par : corbet
A typical cloud-computing host will share some of its memory with each guest that it runs. The host retains its access to that memory, though, meaning that it can readily dig through that memory in search of data that the guest would prefer to keep private. The guest_memfd subsystem removes (most of) the host's access to guest memory, making the guest's data more secure. In the memory-management track of the 2025 Linux Storage, Filesystem, Memory-Management, and BPF Summit, David Hildenbrand ran a discussion on the state and future of this feature.

[$] The future of ZONE_DEVICE

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Par : corbet
Alistair Popple started his session at the 2025 Linux Storage, Filesystem, Memory-Management, and BPF Summit by proclaiming that ZONE_DEVICE is "the ugly stepchild" of the kernel's memory-management subsystem. Ugly or not, the ability to manage memory that is attached to a peripheral device rather than a CPU is increasingly important on current hardware. Popple hoped to cover some of the challenges with ZONE_DEVICE and find ways to make the stepchild a bit more attractive, if not bring it into the family entirely.

« Le monstre, il est vrai » : Guillaume Labbé nous parle d’Anaon, le Stranger Things à la française

Prime Video dévoile sa première série fantastique française, mise en ligne ce 4 avril 2025 : Anaon. Une production dans laquelle Guillaume Labbé (Super Mâles, Escort Boys) tient le rôle principal. Dans une interview inédite accordée à Numerama, le comédien revient sur le genre fantastique en France et... sur sa nudité.

[$] Supporting untorn buffered writes

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Par : jake
At last year's Linux Storage, Filesystem, Memory-Management, and BPF Summit (LSFMM+BPF), there was a discussion about atomic writes that was accompanied by patches to support the feature in the block layer, and for direct I/O on XFS. That work was merged, but another piece of that discussion concerned adding the feature for buffered I/O, in part because the PostgreSQL database currently has to jump through hoops to ensure that its writes are not "torn" (partially written) when there is an error or crash. Luis Chamberlain led a combined storage and filesystem track at this year's summit to revisit the idea of providing atomic (or untorn) writes for buffered I/O.

[$] A strange BPF error message

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Par : daroc

Yonghong Song brought a story about tracking down the cause of a strange verifier error message to the 2025 Linux Storage, Filesystem, Memory-Management, and BPF Summit. He then presented some possible ways to improve Clang's user experience for anyone running into the same class of error in the future. Toward the end of his allotted time, he also discussed the problems with optimizations that change the signature of functions — a problem that José Marchesi had also brought up in the previous session.

Security updates for Friday

✇LWN
Par : daroc
Security updates have been issued by AlmaLinux (firefox), Debian (atop and thunderbird), Fedora (webkitgtk), Mageia (microcode), Oracle (expat), SUSE (apparmor, assimp-devel, aws-efs-utils, expat, firefox, ghostscript, go1.23, gotosocial, govulncheck-vulndb, GraphicsMagick, headscale, libmozjs-128-0, libsaml-devel, openvpn, perl-Data-Entropy, and xz), and Ubuntu (gnupg2, kernel, linux-azure-fips, linux-iot, openvpn, ruby-saml, and xz-utils).
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