Arch Linux: Recent news updates
kea >= 1:3.0.3-6 update requires manual intervention
The
Users upgrading from an existing
Accounts that need to interact with
source
(author: Robin Candau)
kea >= 1:3.0.3-6 update requires manual intervention
The
kea package has moved all services to run as a dedicated kea user (instead of root) for improved security. This change requires permission updates to the runtime files created by the kea services.Users upgrading from an existing
kea installation should therefore run the following commands after the upgrade:chown kea: /var/lib/kea/* /var/log/kea/* /run/lock/kea/logger_lockfilesystemctl try-restart kea-ctrl-agent.service kea-dhcp{4,6,-ddns}.serviceAccounts that need to interact with
kea services files (e.g. lease files under /var/lib/kea, log files under /var/log/kea or configuration files under /etc/kea) should be added to the kea group.source
(author: Robin Candau)
Arch Linux: Recent news updates
iptables now defaults to the nft backend
The old iptables-nft package name is replaced by iptables, and the legacy backend is available as iptables-legacy.
When switching packages (among iptables-nft, iptables, iptables-legacy), check for .pacsave files in /etc/iptables/ and restore your rules if needed:
● /etc/iptables/iptables.rules.pacsave
● /etc/iptables/ip6tables.rules.pacsave
Most setups should work unchanged, but users relying on uncommon xtables extensions or legacy-only behavior should test carefully and use iptables-legacy if required.
source
(author: Felix Yan)
iptables now defaults to the nft backend
The old iptables-nft package name is replaced by iptables, and the legacy backend is available as iptables-legacy.
When switching packages (among iptables-nft, iptables, iptables-legacy), check for .pacsave files in /etc/iptables/ and restore your rules if needed:
● /etc/iptables/iptables.rules.pacsave
● /etc/iptables/ip6tables.rules.pacsave
Most setups should work unchanged, but users relying on uncommon xtables extensions or legacy-only behavior should test carefully and use iptables-legacy if required.
source
(author: Felix Yan)
Daniel Lemire's blog
The fastest way to match characters on ARM processors?
source
The fastest way to match characters on ARM processors?
source
Daniel Lemire's blog
The fastest way to match characters on ARM processors?
Consider the following problem. Given a string, you must match all of the ASCII white-space characters (\t, \n, \r, and the space) and some characters important in JSON (:, ,, [, ], {, }). JSON is a text-based data format used for web services. A toy JSON…
Daniel Lemire's blog
Can your AI rewrite your code in assembly?
source
Can your AI rewrite your code in assembly?
source
Daniel Lemire's blog
Can your AI rewrite your code in assembly?
Suppose you have several strings and you want to count the number of instances of the character ! in your strings. In C++, you might solve the problem as follows if you are an old-school programmer. size_t c = 0; for (const auto &str : strings) { c += st…
Chips and Cheese
Investigating Split Locks on x86-64
#ChipAndCheese
Telegraph | source
(author: Chester Lam)
Investigating Split Locks on x86-64
#ChipAndCheese
Telegraph | source
(author: Chester Lam)
Matt Keeter
A tail-call interpreter in nightly Rust
source
(author: Matt Keeter (matt.j.keeter@gmail.com))
A tail-call interpreter in nightly Rust
source
(author: Matt Keeter (matt.j.keeter@gmail.com))
Harry Chen’s Blog
在 RTX 5090 (SM120) 上补全 NVFP4 量化相关 kernel
source
(author: Shengqi Chen (i@harrychen.xyz))
在 RTX 5090 (SM120) 上补全 NVFP4 量化相关 kernel
source
(author: Shengqi Chen (i@harrychen.xyz))
