Random failure on dependency generation 3 test

[pmatilai]

Every once in a blue moon, the dependency generation 3 test fails with

+++ /srv/build/tests/rpmtests.dir/at-groups/423/stderr	2023-04-05 15:24:52.461321239 +0000

@@ -1,2 +1 @@

-error: Illegal char '*' (0x2a) in: *

 

/rpmbuild.at:810: exit code was 141, expected 1

423. rpmbuild.at:808: 423. Dependency generation 3 (rpmbuild.at:808): FAILED (rpmbuild.at:810)

I'm quite certain I've seen this multiple times in recent years.

[pmatilai]

It's worth noting that the bug is not the error message but the lack of it, and a weird return code.

[pmatilai]

Still happening after switching to GH Actions. But I'm quite certain I've never seen this locally.

[dmnks]

What's common between the previous SemaphoreCI setup and the current GH Actions one is that we 1) run in an Ubuntu VM (18.04 -> 22.04) and 2) we run in a Docker container. My guess would be the latter (Docker) causing this but we yet have to figure it out 😄

[dmnks]

Then there's the intermittent failure with bwrap's mounting table parsing that we discussed in the chat and that only happens with podman/docker too. I'm thinking we should have a Known issues sections somewhere (in the tests/README perhaps) listing these. I'll probably add that later.

[dmnks]

Just FTR, I just got this failure locally so apparently it's not limited to the CI/Ubuntu environment.

[pmatilai]

I have a feeling there's a connection between our first local instance of this failure and switching over to containers. Which backend was it on?

[dmnks]

Wasn't the first encounter with the fakechroot backend and in the Semaphore CI though?

Anyway, I think this last one I saw was actually on the "native" backend that uses bwrap (but I'm not entirely sure as I'm currently tweaking all this as part of #2643 😄 )

[pmatilai]

It was originally spotted with fakechroot and Semaphore of course, but that was still a Fedora container running on top of Ubuntu. Getting it locally eliminates Ubuntu from the picture (unless you've switched to the dark side 😆 ) but we now have containers locally too. Okay there was 'make ci' but I doubt it got used a lot.

Not that we can draw any firm conclusions from this, but it may be a relevant data point.

[dmnks]

Oh, gotcha. Yep, in that case, Ubuntu can be eliminated for sure now 😄 Whether or not I was running the tests on Fedora through podman + bwrap or just bwrap is another matter but Ubuntu was not involved at all, yup 😄