panic: Stack for running G's are skipped while panicking. Sentry detected 1 stuck task(s): Task tid: 5778 (0x1692), entered RunSys state 3m34.76s ago. Search for '(*Task).run(0x..., 0x)' in the stack dump to find the offending goroutine goroutine 152 [running]: gvisor.dev/gvisor/pkg/sentry/watchdog.(*Watchdog).doAction(0xc000134100, 0x1, 0x1, 0xc0007ddd70) DIAGNOSIS: I0208 22:03:16.179647 41941 log.go:209] *************************** I0208 22:03:16.179685 41941 log.go:209] 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-1] I0208 22:03:16.179710 41941 log.go:209] Version release-20200127.0-91-gbfa4a235f401 I0208 22:03:16.179720 41941 log.go:209] PID: 41941 I0208 22:03:16.179731 41941 log.go:209] UID: 0, GID: 0 I0208 22:03:16.179744 41941 log.go:209] Configuration: I0208 22:03:16.179752 41941 log.go:209] RootDir: /syzkaller/managers/kvm-direct-sandbox/workdir/gvisor_root I0208 22:03:16.179761 41941 log.go:209] Platform: kvm I0208 22:03:16.179769 41941 log.go:209] FileAccess: exclusive, overlay: false I0208 22:03:16.179792 41941 log.go:209] Network: sandbox, logging: false I0208 22:03:16.179810 41941 log.go:209] Strace: false, max size: 1024, syscalls: [] I0208 22:03:16.179820 41941 log.go:209] *************************** D0208 22:03:16.181746 41941 log.go:202] Load container "/syzkaller/managers/kvm-direct-sandbox/workdir/gvisor_root" "ci-gvisor-kvm-direct-sandbox-1" D0208 22:03:16.187457 41941 log.go:202] Signal container "ci-gvisor-kvm-direct-sandbox-1": signal 0 D0208 22:03:16.188657 41941 log.go:202] Signal sandbox "ci-gvisor-kvm-direct-sandbox-1" D0208 22:03:16.188672 41941 log.go:202] Connecting to sandbox "ci-gvisor-kvm-direct-sandbox-1" D0208 22:03:16.189886 41941 log.go:202] urpc: successfully marshalled 110 bytes. I0208 22:03:16.592169 41941 log.go:209] Found sandbox "ci-gvisor-kvm-direct-sandbox-1", PID: 19576 I0208 22:03:16.592223 41941 log.go:209] Retrieving sandbox stacks D0208 22:03:16.592238 41941 log.go:202] Stacks sandbox "ci-gvisor-kvm-direct-sandbox-1" D0208 22:03:16.592254 41941 log.go:202] Connecting to sandbox "ci-gvisor-kvm-direct-sandbox-1" D0208 22:03:16.592320 41941 log.go:202] urpc: successfully marshalled 36 bytes. W0208 22:03:16.624587 41941 log.go:216] FATAL ERROR: retrieving stacks: getting sandbox "ci-gvisor-kvm-direct-sandbox-1" stacks: urpc method "debug.Stacks" failed: connection reset by peer retrieving stacks: getting sandbox "ci-gvisor-kvm-direct-sandbox-1" stacks: urpc method "debug.Stacks" failed: connection reset by peer W0208 22:03:16.624750 41941 log.go:216] Failure to execute command, err: 1