panic: Stack for running G's are skipped while panicking. Watchdog goroutine is stuck: goroutine 135 [running]: DIAGNOSIS: I0227 23:49:40.168309 21935 main.go:296] *************************** I0227 23:49:40.168355 21935 main.go:297] Args: [/syzkaller/managers/kvm-proxy-overlay-sandbox/current/image -root /syzkaller/managers/kvm-proxy-overlay-sandbox/workdir/gvisor_root -watchdog-action=panic -network=none -debug -alsologtostderr -platform=kvm -file-access=exclusive -overlay -network=sandbox debug -stacks --ps ci-gvisor-kvm-proxy-overlay-sandbox-3] I0227 23:49:40.168389 21935 main.go:298] Version release-20200219.0-52-gabf7ebcd38e8 I0227 23:49:40.168408 21935 main.go:299] PID: 21935 I0227 23:49:40.168426 21935 main.go:300] UID: 0, GID: 0 I0227 23:49:40.168442 21935 main.go:301] Configuration: I0227 23:49:40.168457 21935 main.go:302] RootDir: /syzkaller/managers/kvm-proxy-overlay-sandbox/workdir/gvisor_root I0227 23:49:40.168495 21935 main.go:303] Platform: kvm I0227 23:49:40.168511 21935 main.go:304] FileAccess: exclusive, overlay: true I0227 23:49:40.168543 21935 main.go:305] Network: sandbox, logging: false I0227 23:49:40.168561 21935 main.go:306] Strace: false, max size: 1024, syscalls: [] I0227 23:49:40.168578 21935 main.go:307] *************************** D0227 23:49:40.168821 21935 container.go:158] Load container "/syzkaller/managers/kvm-proxy-overlay-sandbox/workdir/gvisor_root" "ci-gvisor-kvm-proxy-overlay-sandbox-3" D0227 23:49:40.170838 21935 container.go:591] Signal container "ci-gvisor-kvm-proxy-overlay-sandbox-3": signal 0 D0227 23:49:40.170893 21935 sandbox.go:788] Signal sandbox "ci-gvisor-kvm-proxy-overlay-sandbox-3" D0227 23:49:40.170925 21935 sandbox.go:318] Connecting to sandbox "ci-gvisor-kvm-proxy-overlay-sandbox-3" D0227 23:49:40.171147 21935 urpc.go:534] urpc: successfully marshalled 117 bytes.