W0429 14:07:14.327883   39497 x:0] FATAL ERROR: waiting on pid 17: waiting on PID 17 in sandbox "ci-gvisor-ptrace-proxy-sandbox-race-0": urpc method "containerManager.WaitPID" failed: EOF
waiting on pid 17: waiting on PID 17 in sandbox "ci-gvisor-ptrace-proxy-sandbox-race-0": urpc method "containerManager.WaitPID" failed: EOF
DIAGNOSIS:
I0429 14:07:14.380150   42158 x:0] ***************************
I0429 14:07:14.380406   42158 x:0] Args: [/syzkaller/managers/ptrace-proxy-sandbox-race/current/image -root /syzkaller/managers/ptrace-proxy-sandbox-race/workdir/gvisor_root -watchdog-action=panic -network=none -debug -platform=ptrace -file-access=shared -network=sandbox debug -stacks ci-gvisor-ptrace-proxy-sandbox-race-0]
I0429 14:07:14.380922   42158 x:0] Version release-20190304.1-154-g66bca6fc2213
I0429 14:07:14.380985   42158 x:0] PID: 42158
I0429 14:07:14.381246   42158 x:0] UID: 0, GID: 0
I0429 14:07:14.381279   42158 x:0] Configuration:
I0429 14:07:14.381325   42158 x:0] 		RootDir: /syzkaller/managers/ptrace-proxy-sandbox-race/workdir/gvisor_root
I0429 14:07:14.381347   42158 x:0] 		Platform: ptrace
I0429 14:07:14.381399   42158 x:0] 		FileAccess: shared, overlay: false
I0429 14:07:14.381468   42158 x:0] 		Network: sandbox, logging: false
I0429 14:07:14.381509   42158 x:0] 		Strace: false, max size: 1024, syscalls: []
I0429 14:07:14.381577   42158 x:0] ***************************
D0429 14:07:14.381649   42158 x:0] Load container "/syzkaller/managers/ptrace-proxy-sandbox-race/workdir/gvisor_root" "ci-gvisor-ptrace-proxy-sandbox-race-0"
D0429 14:07:14.389575   42158 x:0] Signal container "ci-gvisor-ptrace-proxy-sandbox-race-0": signal 0
D0429 14:07:14.389664   42158 x:0] Signal sandbox "ci-gvisor-ptrace-proxy-sandbox-race-0"
D0429 14:07:14.389716   42158 x:0] Connecting to sandbox "ci-gvisor-ptrace-proxy-sandbox-race-0"
D0429 14:07:14.390151   42158 x:0] urpc: successfully marshalled 117 bytes.
I0429 14:07:14.438971   42158 x:0] Found sandbox "ci-gvisor-ptrace-proxy-sandbox-race-0", PID: 37608
I0429 14:07:14.439068   42158 x:0] Retrieving sandbox stacks
D0429 14:07:14.439151   42158 x:0] Stacks sandbox "ci-gvisor-ptrace-proxy-sandbox-race-0"
D0429 14:07:14.439200   42158 x:0] Connecting to sandbox "ci-gvisor-ptrace-proxy-sandbox-race-0"
W0429 14:07:14.439359   42158 x:0] FATAL ERROR: retrieving stacks: connecting to control server at PID 37608: connection refused
retrieving stacks: connecting to control server at PID 37608: connection refused