fatal error: D0310 15:16:17.923587 64318 task_run.go:181] [ 31] Restarting syscall 202 after errno 512: not interrupted by handled signal
DIAGNOSIS:
I0310 15:16:17.958166 17709 main.go:305] ***************************
I0310 15:16:17.958278 17709 main.go:306] Args: [/syzkaller/managers/ptrace-direct-overlay-host-race/current/image -root /syzkaller/managers/ptrace-direct-overlay-host-race/workdir/gvisor_root -watchdog-action=panic -network=none -debug -alsologtostderr -platform=ptrace -file-access=exclusive -overlay -network=host -TESTONLY-unsafe-nonroot debug -stacks --ps ci-gvisor-ptrace-direct-overlay-host-race-0]
I0310 15:16:17.958441 17709 main.go:307] Version release-20200219.0-105-gb1576e533223
I0310 15:16:17.958550 17709 main.go:308] PID: 17709
I0310 15:16:17.958627 17709 main.go:309] UID: 0, GID: 0
I0310 15:16:17.958697 17709 main.go:310] Configuration:
I0310 15:16:17.958757 17709 main.go:311] RootDir: /syzkaller/managers/ptrace-direct-overlay-host-race/workdir/gvisor_root
I0310 15:16:17.958838 17709 main.go:312] Platform: ptrace
I0310 15:16:17.958904 17709 main.go:313] FileAccess: exclusive, overlay: true
I0310 15:16:17.959008 17709 main.go:314] Network: host, logging: false
I0310 15:16:17.959097 17709 main.go:315] Strace: false, max size: 1024, syscalls: []
I0310 15:16:17.959174 17709 main.go:316] ***************************
W0310 15:16:17.959228 17709 main.go:321] Block the TERM signal. This is only safe in tests!
D0310 15:16:17.959477 17709 container.go:159] Load container "/syzkaller/managers/ptrace-direct-overlay-host-race/workdir/gvisor_root" "ci-gvisor-ptrace-direct-overlay-host-race-0"
D0310 15:16:17.972158 17709 container.go:592] Signal container "ci-gvisor-ptrace-direct-overlay-host-race-0": signal 0
D0310 15:16:17.972306 17709 sandbox.go:806] Signal sandbox "ci-gvisor-ptrace-direct-overlay-host-race-0"
D0310 15:16:17.972388 17709 sandbox.go:318] Connecting to sandbox "ci-gvisor-ptrace-direct-overlay-host-race-0"
D0310 15:16:17.972741 17709 urpc.go:534] urpc: successfully marshalled 123 bytes.
I0310 15:16:23.759647 17709 debug.go:122] Found sandbox "ci-gvisor-ptrace-direct-overlay-host-race-0", PID: 64318
I0310 15:16:23.759796 17709 debug.go:131] Retrieving sandbox stacks
D0310 15:16:23.759854 17709 sandbox.go:924] Stacks sandbox "ci-gvisor-ptrace-direct-overlay-host-race-0"
D0310 15:16:23.759926 17709 sandbox.go:318] Connecting to sandbox "ci-gvisor-ptrace-direct-overlay-host-race-0"
W0310 15:16:23.760089 17709 error.go:48] FATAL ERROR: retrieving stacks: connecting to control server at PID 64318: connection refused
retrieving stacks: connecting to control server at PID 64318: connection refused
W0310 15:16:23.760414 17709 main.go:338] Failure to execute command, err: 1