[racingmars]

> I would like to note that Linux is the only kernel which will allow you to do this!

I'm pretty sure that MVS syscalls (that is, the numbers you use with the SVC opcode) have remained backward-compatible at least as far back as MVS 3.8 in the 1970s and those binaries making those "raw" syscalls will still work on the latest z/OS releases.

There are a _lot_ more operating systems than Linux, Windows, and the BSDs... making a statement that the Linux kernel is the only kernel to do something a certain way is a risky proposition :-)

[matheusmoreira]

That's awesome. I didn't know about that system and never thought to look for it. Can you point me towards documentation where the vendor promises the interface will remain stable and backwards compatible? I'll remember it.

The Linux promise:

https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/lin...