What happened:

Multisocket tests in test/multisocket_test.go are flaky:

2025-05-20T04:26:15.0519565Z panic: test timed out after 10m0s
2025-05-20T04:26:15.0520031Z 	running tests:
2025-05-20T04:26:15.0520469Z 		TestMultisocket_Restart (9m59s)
2025-05-20T04:26:15.0520988Z 		TestMultisocket_Restart/decrease (9m59s)

See this job log for an example of full runner logs, with stack trace.

This apparently has been going on for some time. I found one remark about this same issue from Nov 2024: #6974 (comment)

What you expected to happen:

Tests to pass all the time.

How to reproduce it (as minimally and precisely as possible):

Seems to happen on a daily basis on CI.

Anything else we need to know?:

Environment:

See runner logs from above for an example.