roachtest: gossip/chaos/nodes=9 failed

[cockroach-teamcity]

(roachtest).gossip/chaos/nodes=9 failed on provisional_202006230817_v20.1.3@7fd454f880f386cdd0eda6b21b12f6532c14f0db:

The test failed on branch=provisional_202006230817_v20.1.3, cloud=gce:
test artifacts and logs in: /home/agent/work/.go/src/github.com/cockroachdb/cockroach/artifacts/gossip/chaos/nodes=9/run_1
	gossip.go:50,gossip.go:71,gossip.go:102,gossip.go:114,gossip.go:124,test_runner.go:753: dial tcp 34.70.82.23:26257: connect: connection timed out

	cluster.go:1512,context.go:135,cluster.go:1501,test_runner.go:825: dead node detection: /home/agent/work/.go/src/github.com/cockroachdb/cockroach/bin/roachprod monitor teamcity-2032995-1592933600-33-n9cpu4 --oneshot --ignore-empty-nodes: exit status 1 7: 7886
		9: dead
		4: 8643
		3: 6902
		5: 6877
		1: 7259
		6: 6258
		2: 7176
		8: 7193
		Error: UNCLASSIFIED_PROBLEM: 9: dead
		(1) UNCLASSIFIED_PROBLEM
		Wraps: (2) attached stack trace
		  | main.glob..func13
		  | 	/home/agent/work/.go/src/github.com/cockroachdb/cockroach/pkg/cmd/roachprod/main.go:1115
		  | main.wrap.func1
		  | 	/home/agent/work/.go/src/github.com/cockroachdb/cockroach/pkg/cmd/roachprod/main.go:266
		  | github.com/cockroachdb/cockroach/vendor/github.com/spf13/cobra.(*Command).execute
		  | 	/home/agent/work/.go/src/github.com/cockroachdb/cockroach/vendor/github.com/spf13/cobra/command.go:766
		  | github.com/cockroachdb/cockroach/vendor/github.com/spf13/cobra.(*Command).ExecuteC
		  | 	/home/agent/work/.go/src/github.com/cockroachdb/cockroach/vendor/github.com/spf13/cobra/command.go:852
		  | github.com/cockroachdb/cockroach/vendor/github.com/spf13/cobra.(*Command).Execute
		  | 	/home/agent/work/.go/src/github.com/cockroachdb/cockroach/vendor/github.com/spf13/cobra/command.go:800
		  | main.main
		  | 	/home/agent/work/.go/src/github.com/cockroachdb/cockroach/pkg/cmd/roachprod/main.go:1789
		  | runtime.main
		  | 	/usr/local/go/src/runtime/proc.go:203
		  | runtime.goexit
		  | 	/usr/local/go/src/runtime/asm_amd64.s:1357
		Wraps: (3) 3 safe details enclosed
		Wraps: (4) 9: dead
		Error types: (1) errors.Unclassified (2) *withstack.withStack (3) *safedetails.withSafeDetails (4) *errors.errorString

More

Artifacts: /gossip/chaos/nodes=9
Related:

• roachtest: gossip/chaos/nodes=9 failed #49493 roachtest: gossip/chaos/nodes=9 failed C-test-failure O-roachtest O-robot branch-release-19.1 release-blocker

See this test on roachdash
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[asubiotto]

Signed off as an infra flake in #50528