2023/12/21 17:01:02 SYZFATAL: BUG: got no fallback coverage:
D1221 17:01:02.276559  851801 task_signals.go:204] [   8:  16] Signal 9, PID: 8, TID: 16, fault addr: 0x0: terminating thread group
D1221 17:01:02.282285  851801 task_exit.go:204] [   8:  14] Transitioning from exit state TaskExitInitiated to TaskExitZombie
D1221 17:01:02.283512  851801 task_exit.go:204] [   8:  14] Transitioning from exit state TaskExitZombie to TaskExitDead
D1221 17:01:02.285329  851801 task_exit.go:204] [   8:  16] Transitioning from exit state TaskExitNone to TaskExitInitiated
D1221 17:01:02.293169  851801 task_exit.go:204] [   8:  16] Transitioning from exit state TaskExitInitiated to TaskExitZombie
D1221 17:01:02.293263  851801 task_exit.go:204] [   8:  16] Transitioning from exit state TaskExitZombie to TaskExitDead
D1221 17:01:02.293320  851801 task_exit.go:204] [   8:   8] Transitioning from exit state TaskExitZombie to TaskExitDead
D1221 17:01:02.305331  851801 loader.go:1252] updated processes (removal): map[{ci-gvisor-arm64-systrap-1-race-test-0 0}:0xc000224cf0]
D1221 17:01:02.306067  851801 controller.go:523] containerManager.Wait, cid: ci-gvisor-arm64-systrap-1-race-test-0, pid: 8, waitStatus: 0x100, err: <nil>
D1221 17:01:02.310381  852000 urpc.go:611] urpc: unmarshal success.
I1221 17:01:02.310541  852000 main.go:224] Exiting with status: 256
D1221 17:01:02.327406  851801 urpc.go:568] urpc: successfully marshalled 38 bytes.
D1221 17:01:02.419074  851801 urpc.go:611] urpc: unmarshal success.
D1221 17:01:02.484923  851801 urpc.go:568] urpc: successfully marshalled 62944 bytes.
D1221 17:01:02.525615  851801 urpc.go:611] urpc: unmarshal success.
D1221 17:01:02.525797  851801 controller.go:232] containerManager.Processes, cid: ci-gvisor-arm64-systrap-1-race-test-0
D1221 17:01:02.526567  851801 urpc.go:568] urpc: successfully marshalled 261 bytes.
D1221 17:01:04.518348  851801 sampler.go:191] Time: Adjusting syscall overhead down to 8
D1221 17:01:05.518360  851801 sampler.go:191] Time: Adjusting syscall overhead down to 7
I1221 17:01:13.422005  851801 watchdog.go:295] Watchdog starting loop, tasks: 8, discount: 0s