Hírolvasó

Min: sched_ext: a BPF-extensible scheduler class (Part 1)

1 év 8 hónap óta
Changwoo Min provides an introduction to the sched_ext scheduling class:

Sched_ext was proposed to address the problems mentioned above. It allows users to write a custom scheduling policy using BPF without modifying the kernel code. You don't need to struggle to maintain the out-of-tree custom scheduler. In addition, BPF provides a safe kernel programming environment. In particular, the BPF verifier ensures that your custom scheduler has neither a memory bug nor an infinite loop. Also, if your custom scheduler misbehaves -- like failing to schedule a task for too long (say 30 seconds), the kernel portion of sched_ext kills your custom scheduler and falls back to the default kernel scheduler (CFS or EEVDF). Last but not least, you can update the BPF scheduler without reinstalling the kernel and rebooting a server.

(LWN looked at sched_ext in February 2023).

corbet

DeMaio: Insights from the openSUSE Logo Contest

1 év 8 hónap óta
In response to the expressed unhappiness over the recent logo-selection process in the openSUSE project (covered in this article), the project has announced that there will be a new vote:

During the community meeting this week where the results were discussed, participants expressed the view that members of the openSUSE Project have an opportunity to participate in the selection of our new logo, and that SUSE, which holds the trademark to the openSUSE logo, be involved with the process for selecting a branding decision with regard to the results. After all, this decision impacts the collective identity.

To facilitate this, there is a plan to organize a vote between the current logo and the proposed new design, allowing our community to have a say in this important decision. Furthermore, members of the project are collaborating with SUSE on the implications of the branding initiatives and some have expressed the desire for SUSE’s input to ensure there is an aligned vision for the future of openSUSE.

corbet

Security updates for Friday

1 év 8 hónap óta
Security updates have been issued by Debian (bluez and haproxy), Fedora (curl, dotnet6.0, dotnet7.0, tigervnc, and xorg-x11-server), Red Hat (avahi and gstreamer1-plugins-bad-free), Slackware (bluez), SUSE (cdi-apiserver-container, cdi-cloner-container, cdi- controller-container, cdi-importer-container, cdi-operator-container, cdi- uploadproxy-container, cdi-uploadserver-container, cont, cosign, curl, gstreamer-plugins-bad, haproxy, ImageMagick, kernel, kernel-firmware, libreoffice, tiff, traceroute, tracker-miners, webkit2gtk3, and xrdp), and Ubuntu (audiofile, budgie-extras, libreoffice, strongswan, vim, and yajl).
jake

Béralku és teljesítményértékelés

1 év 8 hónap óta
Cége válogatja, de akárcsak a szaloncukornak, jellemzően most van szezonja a teljesítményértékeléseknek és a béralkuknak is. Aktuális témát feszegettünk.
HWSW

25 years of Postfix

1 év 8 hónap óta
Wietse Venema posted a note to the postfix-users mailing list about the 25th anniversary of the Postfix mail server. As can be seen, it had a pivotal role in bringing more awareness of open-source software to IBM. Beyond that, of course, it is an excellent piece of software in its own right. As a few on this list may recall, it is 25 years ago today that the "IBM secure mailer" had its public beta release. This was accompanied by a nice article in the New York Times business section.

There is some literature at https://www.postfix.org/press.html that attests how this project accelerated open-source adoption by a very large company.

That release was even noticed by a small publication in its first year of operation.

(Thanks to Kees van Vloten.)

jake

[$] Ext4 data corruption hits the stable kernels

1 év 8 hónap óta
The kernel's stable-update process is intended to produce kernels that are, well, stable; when that promise is lived up to, users can update to newer stable updates without fear. By any account, a bug that corrupts data on ext4 filesystems constitutes a failure to hold to that promise. As is so often the case, this problem is the result of a chain of failures in a system that works well most of the time.
corbet

Security updates for Thursday

1 év 8 hónap óta
Security updates have been issued by Debian (chromium and rabbitmq-server), Fedora (chromium, kernel, perl-CryptX, and python-jupyter-server), Mageia (curl), Oracle (curl and postgresql), Red Hat (gstreamer1-plugins-bad-free, linux-firmware, postgresql, postgresql:10, and postgresql:15), Slackware (xorg), SUSE (catatonit, containerd, runc, container-suseconnect, gimp, kernel, openvswitch, poppler, python-cryptography, python-Twisted, python3-cryptography, qemu, squid, tiff, webkit2gtk3, xorg-x11-server, and xwayland), and Ubuntu (xorg-server and xorg-server, xwayland).
jake