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LWN.net

[$] Removing a pointer dereference from slab allocations

Al Viro does not often stray outside of the core virtual filesystem area; when he does, it is usually worthy of note. Recently, he wandered into memory management with this patch series to the slab allocator and some of its users. Kernel developers will often put considerable effort into small optimizations, but it is still interesting to look at just how much effort has gone toward the purpose of avoiding a single pointer dereference in some memory-allocation hot paths.

LPI

Orchestra Brought To Life: How A Linux Server Plays Its Symphony

Have you ever thought about what happens behind the scenes when you press the power button of your Linux machine? When your server is powered off, itโ€™s a grand concert hall, silent and dark. The stage is empty and the ... Read more The post Orchestra Brought To Life: How A Linux Server Plays Its Symphony appeared first on Linux Professional Institute (LPI).

LWN.net

A note for MXroute users

We have recently noticed that email from LWN.net seems to be blocked by MXroute. Unfortunately, the company also does not seem to have a way for non-customers to report problems in mail delivery, so we have no good way to get ourselves unblocked. As a result, readers who have subscribed to an LWN mailing list from a domain hosted with MXroute will probably not receive our mailings. We have not yet unsubscribed addresses that are being blocked by MXroute, but will soon if the problem persists. Please accept our apologies for the inconvenience; it is unfortunate that it is becoming so difficult to send legitimate email as a small business.

Phoronix

Lenovo ThinkPad P1 Gen 8: A High-End, Intel + NVIDIA Mobile Workstation Great For Linux Use

For those shopping for an AI-ready mobile workstation with NVIDIA RTX PRO Blackwell graphics, the Lenovo ThinkPad P1 Gen 8 offers a lot of potential for developers, AI researchers, content creators, and others. This Linux-friendly mobile workstation is well built and aligns with ThinkPad P-Series expectations while being ready to be tasked with demanding workloads.

LWN.net

Security updates for Thursday

Security updates have been issued by Debian (chromium, gnupg2, and mongo-c-driver), Fedora (firefox, gpsd, linux-firmware, and seamonkey), Mageia (net-snmp), Oracle (kernel, podman, postgresql16, postgresql:13, postgresql:15, postgresql:16, and uek-kernel), Red Hat (libpq, net-snmp, and transfig), Slackware (libpng and mozilla), SUSE (avahi, bluez, capstone, curl, dpdk, firefox, firefox-esr, fluidsynth, glib2, kernel, kernel-devel, libmicrohttpd, libpcap, libpng16, libsoup, libsoup-3_0-0, libtasn1, libvirt, mcphost, openvswitch, ovmf, podman, poppler, python-tornado6, python311, qemu, rsync, and valkey), and Ubuntu (erlang, klibc, libpng1.6, and ruby-rack).

Phoronix

Linux 7.0 To Expand Temperature Reporting For Intel Graphics Cards

The upcoming Linux 6.20~7.0 kernel cycle will provide expanded GPU temperature reporting capabilities for Intel graphics cards. Additional temperature sensors will now be exposed under Linux with the Intel Xe driver using the hardware monitoring (HWMON) interface for easy consumption by different Linux user-space software...

Phoronix

D7VK 1.2 Released For Improving Direct3D 6 Front-End

Started last year was D7VK as a project bringing Direct3D 7 implemented over the Vulkan API for enjoying better performance and support for legacy Windows games on Linux, akin to DXVK and VKD3D-Proton for newer versions of Direct3D over Vulkan that is used by Valve's Steam Play (Proton). Back in December D7VK added a Direct3D 6 front-end for allowing even older game titles to be accelerated using the modern Vulkan API. Today D7VK 1.2 is out for furthering the D3D6 support...