2023/04/24 18:37:39 SYZFATAL: BUG: got no fallback coverage:
D0424 18:37:39.483474  669658 task_signals.go:220] [   6:  10] Signal 23: delivering to handler
D0424 18:37:39.615309  669658 task_exit.go:204] [   6:  10] Transitioning from exit state TaskExitNone to TaskExitInitiated
D0424 18:37:39.615552  669658 task_exit.go:204] [   6:  10] Transitioning from exit state TaskExitInitiated to TaskExitZombie
D0424 18:37:39.615605  669658 task_exit.go:204] [   6:  10] Transitioning from exit state TaskExitZombie to TaskExitDead
D0424 18:37:39.615788  669658 task_signals.go:204] [   6:  13] Signal 6, PID: 13, TID: 0, fault addr: 0x9: terminating thread group
D0424 18:37:39.615868  669658 task_exit.go:204] [   6:  13] Transitioning from exit state TaskExitNone to TaskExitInitiated
D0424 18:37:39.616003  669658 task_exit.go:204] [   6:  13] Transitioning from exit state TaskExitInitiated to TaskExitZombie
D0424 18:37:39.616044  669658 task_exit.go:204] [   6:  13] Transitioning from exit state TaskExitZombie to TaskExitDead
D0424 18:37:39.616197  669658 task_signals.go:204] [   6:   6] Signal 6, PID: 6, TID: 0, fault addr: 0x9: terminating thread group
D0424 18:37:39.616257  669658 task_exit.go:204] [   6:   6] Transitioning from exit state TaskExitNone to TaskExitInitiated
D0424 18:37:39.616376  669658 task_exit.go:204] [   6:   6] Transitioning from exit state TaskExitInitiated to TaskExitZombie
D0424 18:37:39.616499  669658 task_signals.go:204] [   6:   8] Signal 6, PID: 8, TID: 0, fault addr: 0x9: terminating thread group
D0424 18:37:39.616579  669658 task_exit.go:204] [   6:   8] Transitioning from exit state TaskExitNone to TaskExitInitiated
D0424 18:37:39.616679  669658 task_exit.go:204] [   6:   8] Transitioning from exit state TaskExitInitiated to TaskExitZombie
D0424 18:37:39.616710  669658 task_exit.go:204] [   6:   8] Transitioning from exit state TaskExitZombie to TaskExitDead
D0424 18:37:39.616831  669658 task_signals.go:204] [   6:  11] Signal 6, PID: 11, TID: 0, fault addr: 0x9: terminating thread group
D0424 18:37:39.616933  669658 task_exit.go:204] [   6:  11] Transitioning from exit state TaskExitNone to TaskExitInitiated
D0424 18:37:39.617054  669658 task_exit.go:204] [   6:  11] Transitioning from exit state TaskExitInitiated to TaskExitZombie
D0424 18:37:39.617096  669658 task_exit.go:204] [   6:  11] Transitioning from exit state TaskExitZombie to TaskExitDead
D0424 18:37:39.617223  669658 task_signals.go:204] [   6:   9] Signal 6, PID: 9, TID: 0, fault addr: 0x9: terminating thread group
D0424 18:37:39.617289  669658 task_exit.go:204] [   6:   9] Transitioning from exit state TaskExitNone to TaskExitInitiated
D0424 18:37:39.617393  669658 task_exit.go:204] [   6:   9] Transitioning from exit state TaskExitInitiated to TaskExitZombie
D0424 18:37:39.617423  669658 task_exit.go:204] [   6:   9] Transitioning from exit state TaskExitZombie to TaskExitDead
D0424 18:37:39.617549  669658 task_signals.go:204] [   6:  12] Signal 6, PID: 12, TID: 0, fault addr: 0x9: terminating thread group
D0424 18:37:39.617614  669658 task_exit.go:204] [   6:  12] Transitioning from exit state TaskExitNone to TaskExitInitiated
D0424 18:37:39.617728  669658 task_exit.go:204] [   6:  12] Transitioning from exit state TaskExitInitiated to TaskExitZombie
D0424 18:37:39.617764  669658 task_exit.go:204] [   6:  12] Transitioning from exit state TaskExitZombie to TaskExitDead
D0424 18:37:39.617900  669658 task_signals.go:204] [   6:  14] Signal 6, PID: 14, TID: 0, fault addr: 0x9: terminating thread group
D0424 18:37:39.617961  669658 task_exit.go:204] [   6:  14] Transitioning from exit state TaskExitNone to TaskExitInitiated
D0424 18:37:39.618089  669658 task_exit.go:204] [   6:  14] Transitioning from exit state TaskExitInitiated to TaskExitZombie
D0424 18:37:39.618121  669658 task_exit.go:204] [   6:  14] Transitioning from exit state TaskExitZombie to TaskExitDead
D0424 18:37:39.618268  669658 task_signals.go:204] [   6:  15] Signal 6, PID: 15, TID: 0, fault addr: 0x9: terminating thread group
D0424 18:37:39.618337  669658 task_exit.go:204] [   6:  15] Transitioning from exit state TaskExitNone to TaskExitInitiated
D0424 18:37:39.618458  669658 task_exit.go:204] [   6:  15] Transitioning from exit state TaskExitInitiated to TaskExitZombie
D0424 18:37:39.618500  669658 task_exit.go:204] [   6:  15] Transitioning from exit state TaskExitZombie to TaskExitDead
D0424 18:37:39.638079  669658 urpc.go:611] urpc: unmarshal success.
D0424 18:37:39.688029  669658 task_signals.go:204] [   6:   7] Signal 6, PID: 7, TID: 0, fault addr: 0x9: terminating thread group
D0424 18:37:39.688211  669658 task_exit.go:204] [   6:   7] Transitioning from exit state TaskExitNone to TaskExitInitiated
D0424 18:37:39.771149  669658 urpc.go:568] urpc: successfully marshalled 57328 bytes.
D0424 18:37:39.771445  669658 urpc.go:611] urpc: unmarshal success.
D0424 18:37:39.771650  669658 controller.go:226] containerManager.Processes, cid: ci-gvisor-arm64-systrap-1-race-test-0
D0424 18:37:39.772491  669658 urpc.go:568] urpc: successfully marshalled 367 bytes.
D0424 18:37:39.773619  669658 task_exit.go:204] [   6:   7] Transitioning from exit state TaskExitInitiated to TaskExitZombie
D0424 18:37:39.773717  669658 task_exit.go:204] [   6:   7] Transitioning from exit state TaskExitZombie to TaskExitDead
D0424 18:37:39.773787  669658 task_exit.go:204] [   6:   6] Transitioning from exit state TaskExitZombie to TaskExitDead
D0424 18:37:39.782630  670912 urpc.go:611] urpc: unmarshal success.
I0424 18:37:39.782730  670912 main.go:260] Exiting with status: 256
D0424 18:37:39.782247  669658 loader.go:1133] updated processes (removal): map[{ci-gvisor-arm64-systrap-1-race-test-0 0}:0xc0000feed0]
D0424 18:37:39.782396  669658 controller.go:555] containerManager.Wait, cid: ci-gvisor-arm64-systrap-1-race-test-0, pid: 6, waitStatus: 0x100, err: <nil>
D0424 18:37:39.782514  669658 urpc.go:568] urpc: successfully marshalled 38 bytes.