panic: Stack for running G's are skipped while panicking.
Watchdog goroutine is stuck:


DIAGNOSIS:
I0302 10:39:36.832232   55246 main.go:296] ***************************
I0302 10:39:36.832288   55246 main.go:297] Args: [/syzkaller/managers/kvm-direct-sandbox/current/image -root /syzkaller/managers/kvm-direct-sandbox/workdir/gvisor_root -watchdog-action=panic -network=none -debug -alsologtostderr -platform=kvm -file-access=exclusive -network=sandbox debug -stacks --ps ci-gvisor-kvm-direct-sandbox-3]
I0302 10:39:36.832333   55246 main.go:298] Version release-20200219.0-52-gabf7ebcd38e8
I0302 10:39:36.832353   55246 main.go:299] PID: 55246
I0302 10:39:36.832375   55246 main.go:300] UID: 0, GID: 0
I0302 10:39:36.832394   55246 main.go:301] Configuration:
I0302 10:39:36.832413   55246 main.go:302] 		RootDir: /syzkaller/managers/kvm-direct-sandbox/workdir/gvisor_root
I0302 10:39:36.832440   55246 main.go:303] 		Platform: kvm
I0302 10:39:36.832459   55246 main.go:304] 		FileAccess: exclusive, overlay: false
I0302 10:39:36.832494   55246 main.go:305] 		Network: sandbox, logging: false
I0302 10:39:36.832517   55246 main.go:306] 		Strace: false, max size: 1024, syscalls: []
I0302 10:39:36.832537   55246 main.go:307] ***************************
D0302 10:39:36.832582   55246 container.go:158] Load container "/syzkaller/managers/kvm-direct-sandbox/workdir/gvisor_root" "ci-gvisor-kvm-direct-sandbox-3"
D0302 10:39:36.834271   55246 container.go:591] Signal container "ci-gvisor-kvm-direct-sandbox-3": signal 0
D0302 10:39:36.834320   55246 sandbox.go:788] Signal sandbox "ci-gvisor-kvm-direct-sandbox-3"
D0302 10:39:36.834333   55246 sandbox.go:318] Connecting to sandbox "ci-gvisor-kvm-direct-sandbox-3"
D0302 10:39:36.834453   55246 urpc.go:534] urpc: successfully marshalled 110 bytes.
I0302 10:39:37.713008   55246 debug.go:122] Found sandbox "ci-gvisor-kvm-direct-sandbox-3", PID: 64692
I0302 10:39:37.713088   55246 debug.go:131] Retrieving sandbox stacks
D0302 10:39:37.713870   55246 sandbox.go:906] Stacks sandbox "ci-gvisor-kvm-direct-sandbox-3"
D0302 10:39:37.713894   55246 sandbox.go:318] Connecting to sandbox "ci-gvisor-kvm-direct-sandbox-3"
W0302 10:39:37.713940   55246 error.go:48] FATAL ERROR: retrieving stacks: connecting to control server at PID 64692: connection refused
retrieving stacks: connecting to control server at PID 64692: connection refused
W0302 10:39:37.714095   55246 main.go:329] Failure to execute command, err: 1