goleak: goroutine in state sync.Cond.Wait, 5 minutes, with sync.runtime_notifyListWait on top of the stack #41777
Description
A goroutine leak is found in test: https://do.pingcap.net/jenkins/blue/organizations/jenkins/pingcap%2Ftidb%2Fghpr_check2/detail/ghpr_check2/15046/pipeline
goleak: Errors on successful test run: found unexpected goroutines:
[Goroutine 454293 in state sync.Cond.Wait, 5 minutes, with sync.runtime_notifyListWait on top of the stack:
goroutine 454293 [sync.Cond.Wait, 5 minutes]:
sync.runtime_notifyListWait(0xc0105b5210, 0x0)
GOROOT/src/runtime/sema.go:527 +0x14c
sync.(*Cond).Wait(0xc002341f70?)
GOROOT/src/sync/cond.go:70 +0x8c
google.golang.org/grpc/internal/transport.(*http2Client).keepalive(0xc00c758b40)
external/org_golang_google_grpc/internal/transport/http2_client.go:1693 +0x245
created by google.golang.org/grpc/internal/transport.newHTTP2Client
external/org_golang_google_grpc/internal/transport/http2_client.go:386 +0x1dcc
]