#lwn — Public Fediverse posts
Live and recent posts from across the Fediverse tagged #lwn, aggregated by home.social.
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[$] Buffered atomic writes, writethrough, and more
In back-to-back sessions at the start of the 2026 Linux Storage, Filesystem, Memory Management, and BPF Summit (which spilled over into a third slot), the atomic-buffered-writes fe [...]
https://lwn.net/Articles/1072019/ #LWN #Linux #kernel #PostgreSQL #BPF #io_uring
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[$] Buffered atomic writes, writethrough, and more
In back-to-back sessions at the start of the 2026 Linux Storage, Filesystem, Memory Management, and BPF Summit (which spilled over into a third slot), the atomic-buffered-writes fe [...]
https://lwn.net/Articles/1072019/ #LWN #Linux #kernel #PostgreSQL #BPF #io_uring
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[$] Buffered atomic writes, writethrough, and more
In back-to-back sessions at the start of the 2026 Linux Storage, Filesystem, Memory Management, and BPF Summit (which spilled over into a third slot), the atomic-buffered-writes fe [...]
https://lwn.net/Articles/1072019/ #LWN #Linux #kernel #PostgreSQL #BPF #io_uring
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[$] Buffered atomic writes, writethrough, and more
In back-to-back sessions at the start of the 2026 Linux Storage, Filesystem, Memory Management, and BPF Summit (which spilled over into a third slot), the atomic-buffered-writes fe [...]
https://lwn.net/Articles/1072019/ #LWN #Linux #kernel #PostgreSQL #BPF #io_uring
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[$] Buffered atomic writes, writethrough, and more
In back-to-back sessions at the start of the 2026 Linux Storage, Filesystem, Memory Management, and BPF Summit (which spilled over into a third slot), the atomic-buffered-writes fe [...]
https://lwn.net/Articles/1072019/ #LWN #Linux #kernel #PostgreSQL #BPF #io_uring
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Three stable kernels for Thursday
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[$] Keeping COWs in context (a.k.a. anonymous reverse mapping)
The kernel's reverse-mapping machinery is charged with locating the page-table entries that refer to a given page in memory. The reverse mapping of anonymous pages is handled diff [...]
https://lwn.net/Articles/1072378/ #LWN #Linux #kernel #Git #BPF
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[$] Keeping COWs in context (a.k.a. anonymous reverse mapping)
The kernel's reverse-mapping machinery is charged with locating the page-table entries that refer to a given page in memory. The reverse mapping of anonymous pages is handled diff [...]
https://lwn.net/Articles/1072378/ #LWN #Linux #kernel #Git #BPF
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[$] Keeping COWs in context (a.k.a. anonymous reverse mapping)
The kernel's reverse-mapping machinery is charged with locating the page-table entries that refer to a given page in memory. The reverse mapping of anonymous pages is handled diff [...]
https://lwn.net/Articles/1072378/ #LWN #Linux #kernel #Git #BPF
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[$] Keeping COWs in context (a.k.a. anonymous reverse mapping)
The kernel's reverse-mapping machinery is charged with locating the page-table entries that refer to a given page in memory. The reverse mapping of anonymous pages is handled diff [...]
https://lwn.net/Articles/1072378/ #LWN #Linux #kernel #Git #BPF
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Security updates for Thursday
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[$] LWN.net Weekly Edition for May 14, 2026
The LWN.net Weekly Edition for May 14, 2026 is available.
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[$] Friction in Fedora over AI developer desktop initiative
A push by Red Hat employees to create a Fedora "AI Developer Desktop" with support for out-of-tree kernel drivers and AI toolkits has been met with objections from some long-time m [...]
https://lwn.net/Articles/1071949/ #LWN #Linux #RedHat #Bazzite #Git
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[$] Friction in Fedora over AI developer desktop initiative
A push by Red Hat employees to create a Fedora "AI Developer Desktop" with support for out-of-tree kernel drivers and AI toolkits has been met with objections from some long-time m [...]
https://lwn.net/Articles/1071949/ #LWN #Linux #RedHat #Bazzite #Git
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[$] Friction in Fedora over AI developer desktop initiative
A push by Red Hat employees to create a Fedora "AI Developer Desktop" with support for out-of-tree kernel drivers and AI toolkits has been met with objections from some long-time m [...]
https://lwn.net/Articles/1071949/ #LWN #Linux #RedHat #Bazzite #Git
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[$] Friction in Fedora over AI developer desktop initiative
A push by Red Hat employees to create a Fedora "AI Developer Desktop" with support for out-of-tree kernel drivers and AI toolkits has been met with objections from some long-time m [...]
https://lwn.net/Articles/1071949/ #LWN #Linux #RedHat #Bazzite #Git
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[$] Friction in Fedora over AI developer desktop initiative
A push by Red Hat employees to create a Fedora "AI Developer Desktop" with support for out-of-tree kernel drivers and AI toolkits has been met with objections from some long-time m [...]
https://lwn.net/Articles/1071949/ #LWN #Linux #RedHat #Bazzite #Git
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[$] Managing pages outside of the direct map
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 a [...]
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[$] Managing pages outside of the direct map
When Brendan Jackman proposed a session for the 2026 Linux Storage, Filesystem, Memory Management, and BPF Summit, his topic was "a pagetable library for the kernel". During the a [...]
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[$] Managing pages outside of the direct map
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 a [...]
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[$] Managing pages outside of the direct map
When Brendan Jackman proposed a session for the 2026 Linux Storage, Filesystem, Memory Management, and BPF Summit, his topic was "a pagetable library for the kernel". During the a [...]
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Security updates for Wednesday
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Sovereign Tech Fund invests in KDE
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[$] Using dma-bufs for read and write operations
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, Filesyste [...]
https://lwn.net/Articles/1072317/ #LWN #Linux #kernel #Git #BPF #io_uring
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[$] Using dma-bufs for read and write operations
The kernel's dma-buf subsystem provides a way for drivers to share memory buffers, usually in order to support efficient device-to-device I/O. At the 2026 Linux Storage, Filesyste [...]
https://lwn.net/Articles/1072317/ #LWN #Linux #kernel #Git #BPF #io_uring
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[$] Using dma-bufs for read and write operations
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, Filesyste [...]
https://lwn.net/Articles/1072317/ #LWN #Linux #kernel #Git #BPF #io_uring
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[$] Using dma-bufs for read and write operations
The kernel's dma-buf subsystem provides a way for drivers to share memory buffers, usually in order to support efficient device-to-device I/O. At the 2026 Linux Storage, Filesyste [...]
https://lwn.net/Articles/1072317/ #LWN #Linux #kernel #Git #BPF #io_uring
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[$] Scaling transparent huge pages to 1GB
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 suppo [...]
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[$] Scaling transparent huge pages to 1GB
As a general rule, when developers talk about huge pages, they are referring to PMD-level pages that are 1MB or 2MB in size, depending on the CPU architecture. Most CPUs can suppo [...]
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[$] Scaling transparent huge pages to 1GB
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 suppo [...]
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[$] Scaling transparent huge pages to 1GB
As a general rule, when developers talk about huge pages, they are referring to PMD-level pages that are 1MB or 2MB in size, depending on the CPU architecture. Most CPUs can suppo [...]
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Security updates for Tuesday
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Stenberg: Mythos finds a curl vulnerability
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[$] Providing 64KB base pages with 4KB kernels, two different ways
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. [...]
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[$] Providing 64KB base pages with 4KB kernels, two different ways
Some CPU architectures are able to run with a number of different base-page sizes; using a larger size can often result in better performance at the cost of increased memory use. [...]
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[$] Providing 64KB base pages with 4KB kernels, two different ways
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. [...]
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[$] Providing 64KB base pages with 4KB kernels, two different ways
Some CPU architectures are able to run with a number of different base-page sizes; using a larger size can often result in better performance at the cost of increased memory use. [...]
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Debian to require reproducible builds
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Security updates for Monday
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Kernel prepatch 7.1-rc3
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More stable kernels with partial Dirty Frag fixes
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[$] Forgejo "carrot disclosure" raises security questions
An unusual, some might say hostile, approach to disclosing an alleged remote-code-execution (RCE) flaw in the Forgejo software-collaboration platform has sparked a multifaceted con [...]
https://lwn.net/Articles/1071499/ #LWN #Linux #security #Python
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killswitch for short-term emergency vulnerability mitigation
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[$] A 2026 DAMON update
The kernel's DAMON subsystem provides user-space monitoring and management of system memory. DAMON is developing rapidly, so an update on its progress has become a regular feature [...]