Hi I have a problem with the go backend and the ` ltrace` do Pants #general

Hi, I have a problem with the go backend and the `...

lemon-yak-80782

10/12/2023, 7:30 AM

Hi, I have a problem with the go backend and the

-ltrace

does not provide any information. If I run

pants test src/go/module/some_test.go

the execution stops at

Prepare Go test binary

. Did anyone have a similar issue. For me it seems like it has something to do with certain dependencies being imported. In my case the open policy agent sdk. If I run the tests directly with the go cli everything works as expected.

gorgeous-winter-99296

10/12/2023, 8:00 AM

Anything in

pants.d/exceptions.log

? When you say "stops at", does it seem to crash?

lemon-yak-80782

10/12/2023, 8:39 AM

No it does not crash. It just runs the timer up. No logs. The

exceptions.log

file is also empty.

gorgeous-winter-99296

10/12/2023, 8:46 AM

I'd try running with

--keep-sandboxes=always

and looking in the last sandbox it points at. There should be a

__run.sh

in there that you could try running and see what it outputs. There's also

--no-pantsd --no-local-cache

in case there's a cache issue, but it'll give you massive amounts of logs and make things very slow.

gorgeous-winter-99296

10/12/2023, 8:47 AM

Oh, just to double-check: What version of Pants are you running on?

lemon-yak-80782

10/12/2023, 8:50 AM

I run on

2.17

What I saw in the log file of the run is:

Copy code

10:47:45.93 [DEBUG] Launching 1 roots (poll=true).
10:47:46.45 [DEBUG] Launching 1 roots (poll=true).
10:47:46.98 [DEBUG] Launching 1 roots (poll=true).
10:47:47.28 [35m[TRACE][0m Canceled: select
10:47:47.28 [32m[DEBUG][0m Canceled: `test` goal

I will try your hints.

gorgeous-winter-99296

10/12/2023, 8:52 AM

Interesting, wonder why it cancels the test goal. If you run

pants test src/go/module::

does it run any tests?

lemon-yak-80782

10/12/2023, 8:52 AM

Sry that was me

lemon-yak-80782

10/12/2023, 8:53 AM

I just repeats the

[Debug]

line until I cancel

gorgeous-winter-99296

10/12/2023, 8:53 AM

Ah, right

gorgeous-winter-99296

10/12/2023, 8:54 AM

So it doesn't actually exit either, it just stops doing work?

lemon-yak-80782

10/12/2023, 8:56 AM

It is launching 1 roots, I guess. No idea what that means.

lemon-yak-80782

10/12/2023, 10:57 AM

I ran:

pants --print-stacktrace --keep-sandboxes=always --no-pantsd --no-local-cache test

The last sandbox created is:

12:56:21.81 [INFO] Preserving local process execution dir /private/var/folders/tz/fnc3x59j4f9fhq4q09yk_fl00000gn/T/pants-sandbox-4tR6hc for Create embed mapping for crypto/internal/nistec

The output of `__run.sh`is :

{"EmbedConfig":{"Patterns":{"p256_asm_table.bin":["p256_asm_table.bin"]},"Files":{"p256_asm_table.bin":"/usr/local/go/src/crypto/internal/nistec/p256_asm_table.bin"}}}

lemon-yak-80782

10/12/2023, 10:59 AM

Running

go test -v ./...

in the module works perfectly fine. I am not sure how to further debug this. I guess I need to create a repo to reproduce this issue.

gorgeous-winter-99296

10/12/2023, 11:01 AM

That's always helpful, and an issue on Pants GitHub too. I'm not too familiar with the go test support in Pants so don't have much more to add beyond these generic steps.

✅ 1

lemon-yak-80782

10/12/2023, 3:00 PM

For completeness: https://github.com/pantsbuild/pants/issues/20025

🙏 1

happy-kitchen-89482

10/12/2023, 9:55 PM

Thanks for the repro repo, that is gold standard

2 Views

Open in Slack

Previous Next