panic: ptrace status unexpected: got 31, wanted stopped stubStart = 00007fffffff0000 DIAGNOSIS: I0730 20:38:00.608684 62910 x:0] *************************** I0730 20:38:00.608733 62910 x:0] Args: [/syzkaller/managers/main/current/image -root /syzkaller/managers/main/workdir/gvisor_root -watchdog-action=panic -network=none -debug -alsologtostderr -platform=ptrace -file-access=shared -network=none debug -stacks ci-gvisor-main-0] I0730 20:38:00.608751 62910 x:0] Version release-20190529.1-286-ge511c0e05f82 I0730 20:38:00.608757 62910 x:0] PID: 62910 I0730 20:38:00.608881 62910 x:0] UID: 0, GID: 0 I0730 20:38:00.608955 62910 x:0] Configuration: I0730 20:38:00.609049 62910 x:0] RootDir: /syzkaller/managers/main/workdir/gvisor_root I0730 20:38:00.609142 62910 x:0] Platform: ptrace I0730 20:38:00.609459 62910 x:0] FileAccess: shared, overlay: false I0730 20:38:00.609480 62910 x:0] Network: none, logging: false I0730 20:38:00.609489 62910 x:0] Strace: false, max size: 1024, syscalls: [] I0730 20:38:00.609496 62910 x:0] *************************** D0730 20:38:00.610107 62910 x:0] Load container "/syzkaller/managers/main/workdir/gvisor_root" "ci-gvisor-main-0" D0730 20:38:00.611533 62910 x:0] Signal container "ci-gvisor-main-0": signal 0 D0730 20:38:00.611563 62910 x:0] Signal sandbox "ci-gvisor-main-0" D0730 20:38:00.611570 62910 x:0] Connecting to sandbox "ci-gvisor-main-0" D0730 20:38:00.612555 62910 x:0] urpc: successfully marshalled 96 bytes. I0730 20:38:01.021293 62910 x:0] Found sandbox "ci-gvisor-main-0", PID: 47673 I0730 20:38:01.021340 62910 x:0] Retrieving sandbox stacks D0730 20:38:01.021349 62910 x:0] Stacks sandbox "ci-gvisor-main-0" D0730 20:38:01.021358 62910 x:0] Connecting to sandbox "ci-gvisor-main-0" D0730 20:38:01.021620 62910 x:0] urpc: successfully marshalled 36 bytes. W0730 20:38:01.121156 62910 x:0] FATAL ERROR: retrieving stacks: getting sandbox "ci-gvisor-main-0" stacks: urpc method "debug.Stacks" failed: connection reset by peer retrieving stacks: getting sandbox "ci-gvisor-main-0" stacks: urpc method "debug.Stacks" failed: connection reset by peer W0730 20:38:01.121341 62910 x:0] Failure to execute command, err: 1