runtime: "fatal error: unexpected signal during runtime execution" in cmd/go tests on darwin-amd64-race running macOS 12.0 [1.17 backport] #49729
Description
@bcmills requested issue #49723 to be considered for backport to the next 1.17 minor release.
@gopherbot, please backport to Go 1.16 and 1.17. This works around a regression in macOS 12.0.