W0430 18:47:29.339436   64776 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:
I0430 18:47:29.369438   54998 x:0] ***************************
I0430 18:47:29.369808   54998 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]
I0430 18:47:29.369902   54998 x:0] Version release-20190304.1-162-g81ecd8b6eab7
I0430 18:47:29.369937   54998 x:0] PID: 54998
I0430 18:47:29.369964   54998 x:0] UID: 0, GID: 0
I0430 18:47:29.369995   54998 x:0] Configuration:
I0430 18:47:29.370029   54998 x:0] 		RootDir: /syzkaller/managers/ptrace-proxy-sandbox-race/workdir/gvisor_root
I0430 18:47:29.370059   54998 x:0] 		Platform: ptrace
I0430 18:47:29.370084   54998 x:0] 		FileAccess: shared, overlay: false
I0430 18:47:29.370122   54998 x:0] 		Network: sandbox, logging: false
I0430 18:47:29.370147   54998 x:0] 		Strace: false, max size: 1024, syscalls: []
I0430 18:47:29.370184   54998 x:0] ***************************
D0430 18:47:29.370656   54998 x:0] Load container "/syzkaller/managers/ptrace-proxy-sandbox-race/workdir/gvisor_root" "ci-gvisor-ptrace-proxy-sandbox-race-0"
D0430 18:47:29.377543   54998 x:0] Signal container "ci-gvisor-ptrace-proxy-sandbox-race-0": signal 0
D0430 18:47:29.377627   54998 x:0] Signal sandbox "ci-gvisor-ptrace-proxy-sandbox-race-0"
D0430 18:47:29.377697   54998 x:0] Connecting to sandbox "ci-gvisor-ptrace-proxy-sandbox-race-0"
D0430 18:47:29.378116   54998 x:0] urpc: successfully marshalled 117 bytes.
I0430 18:47:29.388880   54998 x:0] Found sandbox "ci-gvisor-ptrace-proxy-sandbox-race-0", PID: 64528
I0430 18:47:29.388967   54998 x:0] Retrieving sandbox stacks
D0430 18:47:29.389336   54998 x:0] Stacks sandbox "ci-gvisor-ptrace-proxy-sandbox-race-0"
D0430 18:47:29.389417   54998 x:0] Connecting to sandbox "ci-gvisor-ptrace-proxy-sandbox-race-0"
W0430 18:47:29.389545   54998 x:0] FATAL ERROR: retrieving stacks: connecting to control server at PID 64528: connection refused
retrieving stacks: connecting to control server at PID 64528: connection refused