Hírolvasó
Generatív videószerkesztővel bővül a Google Workspace
Tuningolt mobilnet és Netflix a Telekomnál
Gázra lépett az Intel, de még nem kapta el az Nvidiát
The "branch history injection" hardware vulnerability
Branch History Injection (BHI) attacks may allow a malicious application to influence indirect branch prediction in kernel by poisoning the branch history. eIBRS isolates indirect branch targets in ring0. The BHB can still influence the choice of indirect branch predictor entry, and although branch predictor entries are isolated between modes when eIBRS is enabled, the BHB itself is not isolated between modes.
See this commit for documentation on the command-line parameter that controls this mitigation. There are stable kernel releases (6.8.5, 6.6.26, 6.1.85, and 5.15.154) in the works that also contain the mitigations.
[$] The first Linaro Forum for Arm Linux kernel topics
OpenSSL 3.3.0 released
[$] Diagnosing workqueues
There are many mechanisms for deferred work in the Linux kernel. One of them, workqueues, has seen increasing use as part of the move away from software interrupts. Alison Chaiken gave a talk at SCALE about how they compare to software interrupts, the new challenges they pose for system administrators, and what tools are available to kernel developers wishing to diagnose problems with workqueues as they become increasingly prevalent.
Security updates for Tuesday
A kikapcsolt mobilokat is mutatja a Google új készülékkeresője
A természeti jelenség, amiért fél Amerika lemondott a netről
Facebookon taroltak a Midjourney nevével visszaélő csalók
Egymillió órányi YouTube-videóval taníthatta modelljét az OpenAI
2024 az Arm-os PC-k éve lesz
Két év után először nőtt a PC-piac
20 years since "and we're just starting": undeadly.org turns 20 (2024-04-09)
At that point in our history, we had been enjoying frequent updates to the OpenBSD Journal at the deadly.org site for more than four years, and most of us thought it was an April's Fool prank when the the editors announced that they were ceasing publication, effective immediately on April 1st, 2004.
Fortunately, Daniel Hartmeier quickly realized the announcement was not a joke, and went to work on a functionally equivalent CGI binary written in C and negotiated to take over the archive of existing articles. The rescued (resurrected?) site went live at undeadly.org on April 9th, 2004.
At the time, the eagerly anticipated upcoming release was OpenBSD 3.5 (which we covered on April 30th of that year). As the release song strongly hints, the introduction of the CARP redundancy protocol was a major item in that release. The release also introduced the OpenBSD/amd64 platform, and included a number of improvements in hardware support and security, with privilege separation introduced in several daemons and important utilities. All the details can be had at the OpenBSD 3.5 release page.
It's been 20 years, what have we got to show for it?
We hope you have been enjoying the site's updates, and we hope that undeadly.org has been a positive factor in promoting all things OpenBSD. The site and its editors have every intention of going on running the site.
If you want to help out, please submit items about OpenBSD that you find noteworthy.
We value your submissions even more than your comments.
All the best from the undeadly.org editors.
Rivendell v4.2.0 released
Version 4.2.0 of the Rivendell radio automation system has been released. Changes include a new data feed for 'next' data objects, improvements to its podcast system, numerous bug fixes, and more.
Introducing Jpegli: A New JPEG Coding Library (Google Open Source Blog)
Jpegli can be encoded with 10+ bits per component. Traditional JPEG coding solutions offer only 8 bit per component dynamics causing visible banding artifacts in slow gradients. Jpegli's 10+ bits coding happens in the original 8-bit formalism and the resulting images are fully interoperable with 8-bit viewers. 10+ bit dynamics are available as an API extension and application code changes are needed to benefit from it.
The library is BSD-licensed.
[$] The PostgreSQL community debates ALTER SYSTEM
GNU Stow 2.4.0 released
Version 2.4.0 of the GNU Stow symbolic-link manager has been released. This marks the first release for GNU Stow since 2019. Maintainer Adam Spires wrote:
I would like to sincerely apologise to all Stow users for this incredibly overdue release, the cadence of which is perhaps vaguely reminiscent of releases by the great Donald Knuth, except with none of the grace and deliberate planning.Spires notes that this release "makes considerable efforts to make the internals more understandable and easy to maintain", and has put out a call for a co-maintainer.