illumos-gate
awesome-space
illumos-gate | awesome-space | |
---|---|---|
36 | 31 | |
1,692 | 1,933 | |
1.3% | 1.2% | |
9.6 | 5.8 | |
4 days ago | 6 months ago | |
C | Ruby | |
- | - |
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
illumos-gate
- C stdlib isn't threadsafe and even safe Rust didn't save us
- Oxide Cuts Data Center Power Consumption in Half
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The Last Sun Sparc Workstation
It’s still going, in the form of Illumos: https://illumos.org/
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CVE-2023-2163: How we found and fixed an eBPF Linux Kernel Vulnerability
DTrace and eBPF are "not so different" in the sense that dtrace programs / hooks are also a form of low-level code / instruction set that the kernel (dtrace driver) validates at load. It's an "internal" artifact of dtrace though, https://github.com/illumos/illumos-gate/blob/master/usr/src/... and to my knowledge, nothing like a clang/gcc "dtrace target" exists to translate more-or-less arbitrary higher-level language "to low-level dtrace".
The additional flexibility eBPF gets from this is amazing really. While dtrace is a more-targeted (and for its intended usecases, in some situations still superior to eBPF) but also less-general tool.
(citrus vs. stone fruit ...)
- "Doors" in Solaris: Lightweight RPC Using File Descriptors (1996)
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What Is PID 0?
We can see it is called sched. Why sched? This article talked about the historic role of PID 0 in process swapping. Process swapping is a scheduling problem (like a lot of problems in software). This is why swappers are traditionally called medium-term or memory schedulers. Illumos generally gives most groupings of kernel worker threads their own processes with their own PIDs, but one, called "sched", remains in PID 0, and its responsibility? Process swapping:
https://github.com/illumos/illumos-gate/blob/579c23696ac6891...
The Wikipedia article has now been hastily edited, and replaces a claim that was true only of certain Unixes other than Linux with a claim true only of certain Unixes including Linux. Is this an improvement?
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eBPF Documentary
It may become a footnote on Linux, but Linux isn't the only system out there -- and DTrace remains alive and well in many systems (not least in its reference implementation in illumos[0]).
[0] https://github.com/illumos/illumos-gate
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Oxide Computer releases distribution of illumos intended to power the Oxide Rack
Nobody's paid to have it pass Open Group Unix Branding certification tests
https://www.opengroup.org/openbrand/register/
so it can't use the UNIX™ trade mark.
But it's got the AT&T Unix kernel & userland sources contained in it.
PDP-11 Unix System III: https://www.tuhs.org/cgi-bin/utree.pl?file=SysIII/usr/src/ut...
IllumOS: https://github.com/illumos/illumos-gate/blob/b8169dedfa435c0...
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In OpenZFS and Btrfs, everyone was just guessing
> it seems like this bug might actually date back to the very beginning of ZFS with Sun
Looks like you might be right about that. The oldest commit referenced in the fix [0] was from 2006[1], which was just months after Sun released ZFS.
[0] https://github.com/openzfs/zfs/pull/15571
[1] https://github.com/illumos/illumos-gate/commit/c543ec060d
- Getaddrinfo() on glibc calls getenv(), oh boy
awesome-space
- Space
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Chang'e-6: Moon dark side samples collected and launched into lunar orbit
We'll be covering this in detail in this week's Orbital Index. https://orbitalindex.com
One thing that's unusual about this mission is that it required a loitering communication satellite orbiting beyond the far side of the Moon to relay communications to Earth. https://orbitalindex.com/archive/2024-03-13-Issue-260
- The Orbital Index
- Intuitive Machines successfully lands on the Moon
- Orbital Index
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NY Times Rides in Waymo Robotaxis in SF
Reminds me that SpaceX has now landed rocket boosters successfully over 200 times. Landing just a single rocket was huge news a few years ago.
The US is launching things into space about 20 times as frequently compared to 10 years ago [1]. Now, most rocket launches don't make mainstream news—I only keep up with things by subscribing to a niche newsletter [2].
[1] https://ourworldindata.org/grapher/yearly-number-of-objects-...
[2] https://orbitalindex.com
- New Tatooine-like exoplanet found orbiting twin suns
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Jeff Bezos announces $3.4B NASA contract to land astronauts on lunar surface
NASA needs multiple lander options; putting all their cards on a lunar Starship landing was always a bit ridiculous, even if it seems reasonably likely to happen. So if you want the Artemis program to actually happen, this is likely a good thing. However, with congress in a deadlock around the debt ceiling, and SLS costing $4B per launch, this is only going to add to Artemis's serious funding challenges.
If you're interested in the space industry in general, I'll cover this more next week in the weekly Orbital Index newsletter (https://orbitalindex.com) which I co-author with blach.
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The Starship Startups - H+ Weekly - Issue #408
This week on H+ Weekly - the first guest post! Ben and Andrew from The Orbital Index highlight an exciting development in the space industry - the rise of startups betting hard on SpaceX’s Starship to succeed.
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Show HN: Moonshine – open-source, pretrained ML models for satellite
You should definitely submit this to https://github.com/orbitalindex/awesome-space#earth!
What are some alternatives?
linux - Linux kernel source tree
orbiter - Open-source repository of Orbiter Space Flight Simulator
glibc - GNU Libc
yamcs - A framework for mission control
linux - Kernel source tree for Raspberry Pi-provided kernel builds. Issues unrelated to the linux kernel should be posted on the community forum at https://forums.raspberrypi.com/
celestiary - Astronomical simulator of solar system and local stars
unix-v6 - UNIX 6th Edition Kernel Source Code
Readrops - Android multi-services RSS client
ipd - illumos Project Discussion
awesome-security-newsletters - Periodic cyber security newsletters that capture the latest news, summaries of conference talks, research, best practices, tools, events, vulnerabilities, and analysis of trending threats and attacks
castero - TUI podcast client for the terminal