panic: Stack for running G's are skipped while panicking. Sentry detected 2 stuck task(s): Task tid: 1433 (0x599), entered RunSys state 3m11.59s ago. Task tid: 1432 (0x598), entered RunSys state 3m11.54s ago. Search for '(*Task).run(0x..., 0x)' in the stack dump to find the offending goroutine DIAGNOSIS: I0208 19:51:07.270953 20971 log.go:209] *************************** I0208 19:51:07.271011 20971 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-3] I0208 19:51:07.271050 20971 log.go:209] Version release-20200127.0-91-gbfa4a235f401 I0208 19:51:07.271063 20971 log.go:209] PID: 20971 I0208 19:51:07.271086 20971 log.go:209] UID: 0, GID: 0 I0208 19:51:07.271097 20971 log.go:209] Configuration: I0208 19:51:07.271123 20971 log.go:209] RootDir: /syzkaller/managers/kvm-direct-sandbox/workdir/gvisor_root I0208 19:51:07.271149 20971 log.go:209] Platform: kvm I0208 19:51:07.271167 20971 log.go:209] FileAccess: exclusive, overlay: false I0208 19:51:07.271189 20971 log.go:209] Network: sandbox, logging: false I0208 19:51:07.271213 20971 log.go:209] Strace: false, max size: 1024, syscalls: [] I0208 19:51:07.271226 20971 log.go:209] *************************** D0208 19:51:07.271264 20971 log.go:202] Load container "/syzkaller/managers/kvm-direct-sandbox/workdir/gvisor_root" "ci-gvisor-kvm-direct-sandbox-3" D0208 19:51:07.272783 20971 log.go:202] Signal container "ci-gvisor-kvm-direct-sandbox-3": signal 0 D0208 19:51:07.272828 20971 log.go:202] Signal sandbox "ci-gvisor-kvm-direct-sandbox-3" D0208 19:51:07.272846 20971 log.go:202] Connecting to sandbox "ci-gvisor-kvm-direct-sandbox-3" D0208 19:51:07.273060 20971 log.go:202] urpc: successfully marshalled 110 bytes. I0208 19:51:10.608107 20971 log.go:209] Found sandbox "ci-gvisor-kvm-direct-sandbox-3", PID: 40740 I0208 19:51:10.608152 20971 log.go:209] Retrieving sandbox stacks D0208 19:51:10.608479 20971 log.go:202] Stacks sandbox "ci-gvisor-kvm-direct-sandbox-3" D0208 19:51:10.608496 20971 log.go:202] Connecting to sandbox "ci-gvisor-kvm-direct-sandbox-3" D0208 19:51:10.608552 20971 log.go:202] urpc: successfully marshalled 36 bytes. W0208 19:51:10.679911 20971 log.go:216] FATAL ERROR: retrieving stacks: getting sandbox "ci-gvisor-kvm-direct-sandbox-3" stacks: urpc method "debug.Stacks" failed: connection reset by peer retrieving stacks: getting sandbox "ci-gvisor-kvm-direct-sandbox-3" stacks: urpc method "debug.Stacks" failed: connection reset by peer W0208 19:51:10.680022 20971 log.go:216] Failure to execute command, err: 1