This is an auto-filled bug because net-misc/openvswitch fails tests.
The issue was originally discovered on x86, but it may be reproducible on other arches as well.
If you think that a different summary clarifies the issue better, feel free to change it.
Attached build log and emerge --info.
Created attachment 638264 [details]
build log and emerge --info
I guess tests/testsuite.log might help. Looks like only 1 failed, hopefully an easy one...
It is weird but tests pass for me now. Let's keep it open if someone else can reproduce.