I0921 00:17:21.271694 16838 x:0] *************************** I0921 00:17:21.271736 16838 x:0] Args: [/syzkaller/managers/kvm-proxy-overlay-sandbox/latest.tmp/image -root /syzkaller/managers/kvm-proxy-overlay-sandbox/latest.tmp/workdir/gvisor_root -watchdog-action=panic -panic-signal=12 -network=none -platform=kvm -file-access=exclusive -overlay -network=sandbox run -bundle /syzkaller/managers/kvm-proxy-overlay-sandbox/latest.tmp/workdir/instance-2/bundle ci-gvisor-kvm-proxy-overlay-sandbox-test-1] I0921 00:17:21.271745 16838 x:0] Git Revision: 8a938a3f9df631667c5f9e5d4a2185207e492a0d I0921 00:17:21.271749 16838 x:0] PID: 16838 I0921 00:17:21.271756 16838 x:0] UID: 0, GID: 0 I0921 00:17:21.271758 16838 x:0] Configuration: I0921 00:17:21.271760 16838 x:0] RootDir: /syzkaller/managers/kvm-proxy-overlay-sandbox/latest.tmp/workdir/gvisor_root I0921 00:17:21.271763 16838 x:0] Platform: kvm I0921 00:17:21.271769 16838 x:0] FileAccess: exclusive, overlay: true I0921 00:17:21.271773 16838 x:0] Network: sandbox, logging: false I0921 00:17:21.271776 16838 x:0] Strace: false, max size: 1024, syscalls: [] I0921 00:17:21.271780 16838 x:0] *************************** I0921 00:17:21.272045 16838 x:0] Remounting root as readonly: "/syzkaller/managers/kvm-proxy-overlay-sandbox/latest.tmp/workdir/instance-2/image" W0921 00:17:21.272086 16838 x:0] FATAL ERROR: error running container: error creating container: failed to setup mounts: failed to remount root as readonly with source: "/syzkaller/managers/kvm-proxy-overlay-sandbox/latest.tmp/workdir/instance-2/image", target: "/syzkaller/managers/kvm-proxy-overlay-sandbox/latest.tmp/workdir/instance-2/image", flags: 0x5021, err: invalid argument error running container: error creating container: failed to setup mounts: failed to remount root as readonly with source: "/syzkaller/managers/kvm-proxy-overlay-sandbox/latest.tmp/workdir/instance-2/image", target: "/syzkaller/managers/kvm-proxy-overlay-sandbox/latest.tmp/workdir/instance-2/image", flags: 0x5021, err: invalid argument