panic: Stack for running G's are skipped while panicking. Sentry detected 1 stuck task(s): Task tid: 1732 (0x6c4), entered RunSys state 3m13.85s ago. Search for '(*Task).run(0x..., 0x)' in the stack dump to find the offending goroutine goroutine 125 [running]: DIAGNOSIS: I0211 05:19:35.216410 14126 log.go:209] *************************** I0211 05:19:35.216451 14126 log.go:209] 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-1] I0211 05:19:35.216486 14126 log.go:209] Version release-20200127.0-100-g724bafa094c7 I0211 05:19:35.216509 14126 log.go:209] PID: 14126 I0211 05:19:35.216529 14126 log.go:209] UID: 0, GID: 0 I0211 05:19:35.216541 14126 log.go:209] Configuration: I0211 05:19:35.216552 14126 log.go:209] RootDir: /syzkaller/managers/kvm-proxy-overlay-sandbox/workdir/gvisor_root I0211 05:19:35.216564 14126 log.go:209] Platform: kvm I0211 05:19:35.216596 14126 log.go:209] FileAccess: exclusive, overlay: true I0211 05:19:35.216631 14126 log.go:209] Network: sandbox, logging: false I0211 05:19:35.216653 14126 log.go:209] Strace: false, max size: 1024, syscalls: [] I0211 05:19:35.216672 14126 log.go:209] *************************** D0211 05:19:35.218374 14126 log.go:202] Load container "/syzkaller/managers/kvm-proxy-overlay-sandbox/workdir/gvisor_root" "ci-gvisor-kvm-proxy-overlay-sandbox-1" D0211 05:19:35.221718 14126 log.go:202] Signal container "ci-gvisor-kvm-proxy-overlay-sandbox-1": signal 0 D0211 05:19:35.221889 14126 log.go:202] Signal sandbox "ci-gvisor-kvm-proxy-overlay-sandbox-1" D0211 05:19:35.222103 14126 log.go:202] Connecting to sandbox "ci-gvisor-kvm-proxy-overlay-sandbox-1" D0211 05:19:35.222274 14126 log.go:202] urpc: successfully marshalled 117 bytes. I0211 05:19:35.548501 14126 log.go:209] Found sandbox "ci-gvisor-kvm-proxy-overlay-sandbox-1", PID: 4753 I0211 05:19:35.548536 14126 log.go:209] Retrieving sandbox stacks D0211 05:19:35.548833 14126 log.go:202] Stacks sandbox "ci-gvisor-kvm-proxy-overlay-sandbox-1" D0211 05:19:35.548878 14126 log.go:202] Connecting to sandbox "ci-gvisor-kvm-proxy-overlay-sandbox-1" D0211 05:19:35.548945 14126 log.go:202] urpc: successfully marshalled 36 bytes. W0211 05:19:35.595201 14126 log.go:216] FATAL ERROR: retrieving stacks: getting sandbox "ci-gvisor-kvm-proxy-overlay-sandbox-1" stacks: urpc method "debug.Stacks" failed: connection reset by peer retrieving stacks: getting sandbox "ci-gvisor-kvm-proxy-overlay-sandbox-1" stacks: urpc method "debug.Stacks" failed: connection reset by peer W0211 05:19:35.595314 14126 log.go:216] Failure to execute command, err: 1