Hírolvasó

Fedora moves towards Forgejo (Fedora Magazine)

9 hónap 1 hét óta

Fedora Project Leader Matthew Miller reports that the project's search to replace Pagure as its git forge is almost complete, with the Fedora Council strongly in favor of Forgejo:

The Council, currently, has a clear preference for Forgejo. This is a big decision and we don't want it to feel rushed. Therefore, we're opening this up one last time to everyone's comments. After two weeks, we'll take our formal vote — and then get on with the work!

LWN looked at Forgejo in February.

jzb

Walleij: New ARM32 Security Features in v6.10

9 hónap 1 hét óta
Linus Walleij writes about a pair of security features for 32-bit Arm systems; these landed in 6.10, but, he says, have now stabilized to the point that distributors may want to enable them.

PAN is an abbreviation for the somewhat grammatically incorrect Privileged Access Never. [...]

For modern ARM32 systems with large memories configured to use LPAE nothing like PAN was available: this version of the MMU simply did not implement a PAN option.

As of the patch originally developed by Catalin Marinas, we deploy a scheme that will use the fact that LPAE has two separate translation table base registers (TTBR:s): one for userspace (TTBR0) and one for kernelspace (TTBR1).

corbet

[$] The return of RWF_UNCACHED

9 hónap 1 hét óta
Linux offers two broad ways of performing I/O to files. Buffered I/O, which is the usual way of accessing a file, stores a copy of the transferred data in the kernel's page cache to speed future accesses. Direct I/O, instead, moves data directly between the storage device and a user-space buffer, avoiding the page cache. Both modes have their advantages and disadvantages. In 2019, Jens Axboe proposed an uncached buffered mode to get some of the advantages of both, but that effort stalled at the time. Now, uncached buffered I/O is back with some impressive performance results behind it.
corbet

Hurl 6.0.0 released

9 hónap 1 hét óta

Version 6.0.0 of the Hurl command-line tool has been released. Hurl is a curl-powered utility that runs HTTP requests and tests defined in a plain-text Hurl file. Notable features in this release include the ability to generate dynamic values with functions, shorter syntax, and an option to export Hurl files to a list of curl commands. See the release notes for a full list of changes and downloads.

jzb

Security updates for Wednesday

9 hónap 1 hét óta
Security updates have been issued by Red Hat (go-toolset:rhel8, grafana, kernel, kernel-rt, kernel:4.18.0, pam, pam:1.5.1, pcs, postgresql:12, postgresql:15, postgresql:16, python3:3.6.8, qemu-kvm, rhc, rhc-worker-playbook, and virt:rhel and virt-devel:rhel) and SUSE (ansible-10, ansible-core, avahi, bpftool, python, python3, python36, webkit2gtk3, and xen).
jzb

[$] Rust's incremental compiler architecture

9 hónap 1 hét óta

The traditional structure of a compiler forms a pipeline — parsing, type-checking, optimization, and code-generation, usually in that order. But modern programming languages have requirements that are ill-suited to such a design. Increasingly, compilers are moving toward other designs in order to support incremental compilation and low-latency responses for uses like integration into IDEs. Rust has, for the last eight years, been pursuing a particularly unusual design; in that time compile times have substantially improved, but there's still more work to be done.

daroc

Security updates for Tuesday

9 hónap 1 hét óta
Security updates have been issued by AlmaLinux (container-tools:rhel8, kernel, kernel-rt:4.18.0, kernel:4.18.0, pam, pam:1.5.1, perl-App-cpanminus, perl-App-cpanminus:1.7044, python-tornado, tigervnc, tuned, and webkit2gtk3), Debian (needrestart and webkit2gtk), Mageia (firefox, glib2.0, krb5, and thunderbird), Red Hat (firefox, postgresql, postgresql:12, postgresql:13, postgresql:15, postgresql:16, and thunderbird), SUSE (editorconfig-core-c, kernel, php7, php8, python, python-tornado6, python3-virtualenv, python310, python39, thunderbird, wget, and wireshark), and Ubuntu (firefox and haproxy).
corbet