I1213 23:09:08.796675 17734 x:0] *************************** I1213 23:09:08.796751 17734 x:0] Args: [/syzkaller/managers/kvm-direct-overlay-host-race/current/image -root /syzkaller/managers/kvm-direct-overlay-host-race/workdir/gvisor_root -watchdog-action=panic -trace-signal=12 -network=none -debug -platform=ptrace -file-access=exclusive -overlay -network=host exec -user=0:0 -cap CAP_CHOWN -cap CAP_DAC_OVERRIDE -cap CAP_DAC_READ_SEARCH -cap CAP_FOWNER -cap CAP_FSETID -cap CAP_KILL -cap CAP_SETGID -cap CAP_SETUID -cap CAP_SETPCAP -cap CAP_LINUX_IMMUTABLE -cap CAP_NET_BIND_SERVICE -cap CAP_NET_BROADCAST -cap CAP_NET_ADMIN -cap CAP_NET_RAW -cap CAP_IPC_LOCK -cap CAP_IPC_OWNER -cap CAP_SYS_MODULE -cap CAP_SYS_RAWIO -cap CAP_SYS_CHROOT -cap CAP_SYS_PTRACE -cap CAP_SYS_PACCT -cap CAP_SYS_ADMIN -cap CAP_SYS_BOOT -cap CAP_SYS_NICE -cap CAP_SYS_RESOURCE -cap CAP_SYS_TIME -cap CAP_SYS_TTY_CONFIG -cap CAP_MKNOD -cap CAP_LEASE -cap CAP_AUDIT_WRITE -cap CAP_AUDIT_CONTROL -cap CAP_SETFCAP -cap CAP_MAC_OVERRIDE -cap CAP_MAC_ADMIN -cap CAP_SYSLOG -cap CAP_WAKE_ALARM -cap CAP_BLOCK_SUSPEND -cap CAP_AUDIT_READ ci-gvisor-kvm-direct-overlay-host-race-0 /syz-fuzzer -executor=/syz-executor -name=vm-0 -arch=amd64 -manager=stdin -sandbox=none -procs=4 -v=0 -cover=false -debug=false -test=false] I1213 23:09:08.796928 17734 x:0] Git Revision: 6253d32cc932e76608be5c57a4870b3d61464487 I1213 23:09:08.796942 17734 x:0] PID: 17734 I1213 23:09:08.796956 17734 x:0] UID: 0, GID: 0 I1213 23:09:08.796977 17734 x:0] Configuration: I1213 23:09:08.796987 17734 x:0] RootDir: /syzkaller/managers/kvm-direct-overlay-host-race/workdir/gvisor_root I1213 23:09:08.797011 17734 x:0] Platform: ptrace I1213 23:09:08.797034 17734 x:0] FileAccess: exclusive, overlay: true I1213 23:09:08.797053 17734 x:0] Network: host, logging: false I1213 23:09:08.797067 17734 x:0] Strace: false, max size: 1024, syscalls: [] I1213 23:09:08.797085 17734 x:0] *************************** D1213 23:09:08.797308 17734 x:0] Load container "/syzkaller/managers/kvm-direct-overlay-host-race/workdir/gvisor_root" "ci-gvisor-kvm-direct-overlay-host-race-0" D1213 23:09:08.799321 17734 x:0] Signal container "ci-gvisor-kvm-direct-overlay-host-race-0": signal 0 D1213 23:09:08.799377 17734 x:0] Signal sandbox "ci-gvisor-kvm-direct-overlay-host-race-0" D1213 23:09:08.799417 17734 x:0] Connecting to sandbox "ci-gvisor-kvm-direct-overlay-host-race-0" D1213 23:09:08.799719 17734 x:0] urpc: successfully marshalled 120 bytes. D1213 23:09:08.800106 17447 x:0] urpc: unmarshal success. D1213 23:09:08.800334 17447 x:0] containerManager.Signal &{CID:ci-gvisor-kvm-direct-overlay-host-race-0 Signo:0 PID:0 Mode:Process} D1213 23:09:08.800497 17447 x:0] urpc: successfully marshalled 37 bytes. D1213 23:09:08.800662 17734 x:0] urpc: unmarshal success. D1213 23:09:08.800757 17734 x:0] Execute in container "ci-gvisor-kvm-direct-overlay-host-race-0", args: /syz-fuzzer -executor=/syz-executor -name=vm-0 -arch=amd64 -manager=stdin -sandbox=none -procs=4 -v=0 -cover=false -debug=false -test=false D1213 23:09:08.800819 17734 x:0] Executing new process in container "ci-gvisor-kvm-direct-overlay-host-race-0" in sandbox "ci-gvisor-kvm-direct-overlay-host-race-0" D1213 23:09:08.800855 17734 x:0] Connecting to sandbox "ci-gvisor-kvm-direct-overlay-host-race-0" D1213 23:09:08.801808 17734 x:0] urpc: successfully marshalled 549 bytes. D1213 23:09:08.802050 17447 x:0] urpc: unmarshal success. D1213 23:09:08.802703 17447 x:0] containerManager.ExecuteAsync: /syz-fuzzer -executor=/syz-executor -name=vm-0 -arch=amd64 -manager=stdin -sandbox=none -procs=4 -v=0 -cover=false -debug=false -test=false I1213 23:09:08.802989 17447 x:0] EXEC: [/syz-fuzzer -executor=/syz-executor -name=vm-0 -arch=amd64 -manager=stdin -sandbox=none -procs=4 -v=0 -cover=false -debug=false -test=false] D1213 23:09:08.803337 17447 x:0] send [FD 6] [Tag 000001] Twalkgetattr{FID: 1, NewFID: 4, Names: [syz-fuzzer]} D1213 23:09:08.804459 17447 x:0] recv [FD 6] [Tag 000001] Rwalkgetattr{Valid: AttrMask{with: Mode NLink UID GID RDev ATime MTime CTime Size Blocks}, Attr: Attr{Mode: 0o100755, UID: 0, GID: 0, NLink: 1, RDev: 0, Size: 18290144, BlockSize: 4096, Blocks: 35728, ATime: {Sec: 1544716303, NanoSec: 827895343}, MTime: {Sec: 1544716303, NanoSec: 827895343}, CTime: {Sec: 1544742548, NanoSec: 767425003}, BTime: {Sec: 0, NanoSec: 0}, Gen: 0, DataVersion: 0}, QIDs: [QID{Type: 0, Version: 0, Path: 9044070}]} D1213 23:09:08.804738 17447 x:0] send [FD 6] [Tag 000001] Twalk{FID: 4, NewFID: 5, Names: []} D1213 23:09:08.805322 17447 x:0] recv [FD 6] [Tag 000001] Rwalk{QIDs: [QID{Type: 0, Version: 0, Path: 9044070}]} D1213 23:09:08.805410 17447 x:0] send [FD 6] [Tag 000001] Tlopen{FID: 5, Flags: ReadOnly} D1213 23:09:08.805970 17447 x:0] recv [FD 6] [Tag 000001] Rlopen{QID: QID{Type: 0, Version: 0, Path: 9044070}, IoUnit: 0, File: &{{29}}} D1213 23:09:08.811148 17447 x:0] Allocating stack with size of 8388608 bytes D1213 23:09:08.811993 17447 x:0] updated processes: map[{ci-gvisor-kvm-direct-overlay-host-race-0 0}:0xc000129770 {ci-gvisor-kvm-direct-overlay-host-race-0 15}:0xc0001295c0] D1213 23:09:08.812269 17447 x:0] urpc: successfully marshalled 37 bytes. D1213 23:09:08.812384 17734 x:0] urpc: unmarshal success. D1213 23:09:08.812436 17734 x:0] Wait on PID 15 in container "ci-gvisor-kvm-direct-overlay-host-race-0" D1213 23:09:08.812469 17734 x:0] Waiting for PID 15 in sandbox "ci-gvisor-kvm-direct-overlay-host-race-0" D1213 23:09:08.812495 17734 x:0] Connecting to sandbox "ci-gvisor-kvm-direct-overlay-host-race-0" D1213 23:09:08.812650 17734 x:0] urpc: successfully marshalled 122 bytes. D1213 23:09:08.813046 17447 x:0] urpc: unmarshal success. D1213 23:09:08.813248 17447 x:0] containerManager.Wait D1213 23:09:08.813902 17447 x:0] [ 15] Interrupt queued W1213 23:09:09.005234 17734 x:0] FATAL ERROR: error waiting on pid 15: error waiting on PID 15 in sandbox "ci-gvisor-kvm-direct-overlay-host-race-0": urpc method "containerManager.WaitPID" failed: EOF error waiting on pid 15: error waiting on PID 15 in sandbox "ci-gvisor-kvm-direct-overlay-host-race-0": urpc method "containerManager.WaitPID" failed: EOF W1213 23:09:09.008364 17421 x:0] Wait RPC to container "ci-gvisor-kvm-direct-overlay-host-race-0" failed: urpc method "containerManager.Wait" failed: EOF. Will try waiting on the sandbox process instead. D1213 23:09:09.008573 17421 x:0] Destroy container "ci-gvisor-kvm-direct-overlay-host-race-0" D1213 23:09:09.008615 17421 x:0] Destroying container "ci-gvisor-kvm-direct-overlay-host-race-0" D1213 23:09:09.008645 17421 x:0] Destroying root container "ci-gvisor-kvm-direct-overlay-host-race-0" by destroying sandbox D1213 23:09:09.008688 17421 x:0] Destroy sandbox "ci-gvisor-kvm-direct-overlay-host-race-0" D1213 23:09:09.008710 17421 x:0] Killing sandbox "ci-gvisor-kvm-direct-overlay-host-race-0" D1213 23:09:09.009022 17421 x:0] Killing gofer for container "ci-gvisor-kvm-direct-overlay-host-race-0", PID: 17443 I1213 23:09:14.009632 17421 x:0] Exiting with status: 9