lwn.net / .lwn-net / Page 4

Sam James has sent an announcement to the OSS Security mailing list about another local-privile [...]

When Brendan Jackman proposed a session for the 2026 Linux Storage, Filesystem, Memory Management, and BPF Summit, his topic was "a pagetable library for the kernel". During the actual memory-management-track session, though, he stated that the idea ...

Linux can share memory between processes, but each process (almost always) has its own set of page tables. In situations where vast numbers of processes are sharing a memory region, the combined size of the page tables can exceed that of the shared ...

The KDE project has announced that it has been awarded over 1 million from the Sovereign Tech [...]

The kernel's dma-buf subsystem provides a way for drivers to share memory buffers, usually in order to support efficient device-to-device I/O. At the 2026 Linux Storage, Filesystem, Memory Management, and BPF Summit, Pavel Begunkov, assisted by ...

As a general rule, when developers talk about huge pages, they are referring to PMD-level pages that are 1MB or 2MB in size, depending on the CPU architecture. Most CPUs can support other huge-page sizes, though. On x86 systems, PUD-level huge pages ...

Daniel Stenberg has published a lengthy article on his thoughts on Anthropic's Mythos, which th [...]

Greg Kroah-Hartman has released the 7.0.6 and 6.18.29 stable kernels with Hyunwoo Kim's patch f [...]

Some CPU architectures are able to run with a number of different base-page sizes; using a larger size can often result in better performance at the cost of increased memory use. Other architectures are more limited. At the 2026 Linux Storage,

Paul Gevers has slipped an interesting bit of news into a 'bits from the release team' message: [...]