Abort integration tests if sendmmsg is enabled

added tests label

Another option that might work better than https://gitlab.labs.nic.cz/labs/socket_wrapper/-/commit/7a4d4087b is to just return ENOSYS. Pedantic callers should fall back on working syscalls after getting that.

libuv does that already, and it wouldn't be hard to add in kresd, though I don't expect practical improvement outside Deckard. For example, *mmsg was included in RHEL 5.7 and FreeBSD don't seem like porting across significantly different releases.

I would prefer to keep kresd code as simple as possible, eventually eliminating our sendmmsg hack and relying on libuv.

Eventually... around the time CentOS 8 is getting EOLd?

OK. I believe we can start with this way. I would say that over long term this libuv situation might make it uncomfortable for some of us to run deckard tests locally, but:

• it seems not so easy already (various dependencies, etc.)
• we have GitLab CI :-)
• deckard is expected to migrate away from socket wrapper anyway
• (and in the worst case we can improve this later)

I haven't thought much about details in the MR, but I don't think it's necessary, if it behaved OK for you.

changed milestone to %5.1.0

merged

mentioned in commit ae812d2c

This MR has had 4 unsuccessful deckard runs and not even a single successful one. That's clearly a reason to block this MR since it actually updates deckard and changes its behaviour.

Please don't ignore the important and relevant CI jobs to avoid breaking master in the future.

Yes, I agree it was a mistake that I merged it. (The additional runs were done after that.)