WSL VS illumos-gate

I have found some documentation here https://github.com/MicrosoftDocs/WSL/issues/536 and here https://learn.microsoft.com/en-us/windows/wsl/faq#will-i-be-able-to-run-wsl-2-and-other-3rd-party-virtualization-tools-such-as-vmware--or-VirtualBox and intend to read them fully including the links inside them tomorrow or the day after when I have time.

Off the top of my head was this bug that caused a lot of people using vbox to swap to vmware. Just a bunch of really annoying compatibility bugs that made it a nightmare if you were trying to use it like a native linux instance.

>and I’m almost certain that when you run multiple wsl distros they are all in one VM, though that may be wrong

Yes, they run as containers.

From https://github.com/MicrosoftDocs/WSL/issues/1573#issuecommen...:

WSL distributions (instances) are not VMs. They are best described as "containers" running inside the WSL2 VM. Each WSL2 distribution/instance has its own isolated:

PID namespace

(As I've understood, Hyper-V Management Tools should not be needed when using WSL2, based on: https://github.com/MicrosoftDocs/WSL/issues/899)

Here https://github.com/MicrosoftDocs/WSL/issues/536

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

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...

> 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

It could be good for in memory stores / log-structured merged trees / other data store applications although it isn't used much now-days. I find them simpler to implement and understand than red-black trees -- although that's a matter of taste I suppose. They beat red-black trees in read-heavy loads (i.e. writes / updates are more costly for AVL trees than for Red-Black trees although they beat R-B trees for read-heavy loads). You can find another implementation in Illumos (an open source Unix operating system) available here: https://github.com/illumos/illumos-gate/blob/master/usr/src/...

It's high time that the Illumos developers patched https://github.com/illumos/illumos-gate/blob/master/usr/src/... and https://github.com/illumos/illumos-gate/blob/master/usr/src/... to just set the error flag and return, and made the #ifndef TIOCSTI path in https://github.com/illumos/illumos-gate/blob/master/usr/src/... the only path.

Because by the looks of https://github.com/illumos/illumos-gate/blob/7c478bd95313f5f... the C shell was fixed years ago.

People are still actively working on Illumos. The last change was yesterday morning.

* https://illumos.org

People are still actively working on MirBSD. There's a CVS commit account that can be followed on the FediVerse.

* http://www.mirbsd.org

It's DragonFly BSD, not Dragon BSD, and the irony of that is that you missed FreeBSD, which is of course still going.

* https://dragonflybsd.org

* https://freebsd.org

As is GhostBSD, which tracks FreeBSD.

* https://ghostbsd.org

HardenedBSD is still going. Shawn Webb regularly talks about it on the FediVerse.

* https://hardenedbsd.org

Its successor is still out there: Illumos. Though it seems to be mainly focused on backwards compatibility for existing custom applications as it still enforces things like an 8 character username limit.

> Since then, illumos has rewritten all those components

But apparently kept the same license?

>> Most of the existing code is licensed under the CDDL and we expect new code will generally be under this license as well.[0]

[0] https://github.com/illumos/illumos-gate