panic: Stack for running G's are skipped while panicking.
Sentry detected 1 stuck task(s):
	Task tid: 9089 (0x2381), entered RunSys state 3m35.69s ago.
Search for '(*Task).run(0x..., 0x<tid>)' in the stack dump to find the offending goroutine

DIAGNOSIS:
I0227 10:47:07.181090   64689 main.go:296] ***************************
I0227 10:47:07.181233   64689 main.go:297] 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 -alsologtostderr -platform=ptrace -file-access=shared -network=sandbox -TESTONLY-unsafe-nonroot debug -stacks --ps ci-gvisor-ptrace-proxy-sandbox-race-1]
I0227 10:47:07.181429   64689 main.go:298] Version release-20200219.0-47-gde0b2ebf8635
I0227 10:47:07.181518   64689 main.go:299] PID: 64689
I0227 10:47:07.181600   64689 main.go:300] UID: 0, GID: 0
I0227 10:47:07.181714   64689 main.go:301] Configuration:
I0227 10:47:07.181796   64689 main.go:302] 		RootDir: /syzkaller/managers/ptrace-proxy-sandbox-race/workdir/gvisor_root
I0227 10:47:07.181900   64689 main.go:303] 		Platform: ptrace
I0227 10:47:07.181972   64689 main.go:304] 		FileAccess: shared, overlay: false
I0227 10:47:07.182071   64689 main.go:305] 		Network: sandbox, logging: false
I0227 10:47:07.182219   64689 main.go:306] 		Strace: false, max size: 1024, syscalls: []
I0227 10:47:07.182300   64689 main.go:307] ***************************
W0227 10:47:07.182381   64689 main.go:312] Block the TERM signal. This is only safe in tests!
D0227 10:47:07.183390   64689 container.go:158] Load container "/syzkaller/managers/ptrace-proxy-sandbox-race/workdir/gvisor_root" "ci-gvisor-ptrace-proxy-sandbox-race-1"
D0227 10:47:07.190947   64689 container.go:591] Signal container "ci-gvisor-ptrace-proxy-sandbox-race-1": signal 0
D0227 10:47:07.191085   64689 sandbox.go:788] Signal sandbox "ci-gvisor-ptrace-proxy-sandbox-race-1"
D0227 10:47:07.191191   64689 sandbox.go:318] Connecting to sandbox "ci-gvisor-ptrace-proxy-sandbox-race-1"
D0227 10:47:07.191632   64689 urpc.go:534] urpc: successfully marshalled 117 bytes.
I0227 10:47:10.332714   64689 debug.go:122] Found sandbox "ci-gvisor-ptrace-proxy-sandbox-race-1", PID: 20827
I0227 10:47:10.332926   64689 debug.go:131] Retrieving sandbox stacks
D0227 10:47:10.333059   64689 sandbox.go:906] Stacks sandbox "ci-gvisor-ptrace-proxy-sandbox-race-1"
D0227 10:47:10.333189   64689 sandbox.go:318] Connecting to sandbox "ci-gvisor-ptrace-proxy-sandbox-race-1"
D0227 10:47:10.333414   64689 urpc.go:534] urpc: successfully marshalled 36 bytes.
W0227 10:47:10.418127   64689 error.go:48] FATAL ERROR: retrieving stacks: getting sandbox "ci-gvisor-ptrace-proxy-sandbox-race-1" stacks: urpc method "debug.Stacks" failed: connection reset by peer
retrieving stacks: getting sandbox "ci-gvisor-ptrace-proxy-sandbox-race-1" stacks: urpc method "debug.Stacks" failed: connection reset by peer
W0227 10:47:10.418523   64689 main.go:329] Failure to execute command, err: 1