fatal error: runtime: netpollBreak write failed

runtime stack:
D0729 05:33:38.344246       1 urpc.go:577] urpc: unmarshal success.
D0729 05:33:38.344788       1 controller.go:504] containerManager.Signal &{CID:ci-gvisor-kvm-direct-sandbox-3 Signo:0 PID:0 Mode:Process}
D0729 05:33:38.345143       1 urpc.go:534] urpc: successfully marshalled 37 bytes.
D0729 05:33:38.347376       1 urpc.go:577] urpc: unmarshal success.
D0729 05:33:38.640657       1 task_exit.go:221] [ 6149] Transitioning from exit state TaskExitZombie to TaskExitDead
D0729 05:33:38.642351       1 task_block.go:223] [ 6153] Interrupt queued
runtime.throw(0x99c5bf, 0x22)
D0729 05:33:38.758655       1 task_block.go:223] [ 6163] Interrupt queued
D0729 05:33:38.758810       1 task_signals.go:470] [ 6153] No task notified of signal 9
D0729 05:33:38.758868       1 task_exit.go:221] [ 6151] Transitioning from exit state TaskExitZombie to TaskExitDead
D0729 05:33:38.758884       1 task_signals.go:189] [ 6153] Signal 9: terminating thread group
I0729 05:33:38.758922       1 compat.go:135] Uncaught signal: "killed" (9), PID: 6153, TID: 6153, fault addr: 0x0
D0729 05:33:38.758945       1 task_exit.go:221] [ 6153] Transitioning from exit state TaskExitNone to TaskExitInitiated
D0729 05:33:38.760532       1 task_block.go:223] [ 6153] Interrupt queued
D0729 05:33:38.760566       1 task_signals.go:447] [ 6153] Discarding duplicate signal 9
	/syzkaller/go/src/runtime/panic.go:1116 +0x72
runtime.netpollBreak()
	/syzkaller/go/src/runtime/netpoll_epoll.go:90 +0xc6
D0729 05:33:38.809930       1 urpc.go:534] urpc: successfully marshalled 1488448 bytes.
runtime.findrunnable(0xc000026000, 0x0)
	/syzkaller/go/src/runtime/proc.go:2357 +0xa51
runtime.schedule()
D0729 05:33:38.917835       1 urpc.go:577] urpc: unmarshal success.
D0729 05:33:38.917907       1 controller.go:198] containerManager.Processes: "ci-gvisor-kvm-direct-sandbox-3"
	/syzkaller/go/src/runtime/proc.go:2520 +0x2fc
runtime.goexit0(0xc002556780)
	/syzkaller/go/src/runtime/proc.go:2849 +0x1d6
D0729 05:33:38.962285       1 task_exit.go:221] [ 6153] Transitioning from exit state TaskExitInitiated to TaskExitZombie
D0729 05:33:38.962415       1 task_signals.go:432] [  61] Discarding ignored signal 17
D0729 05:33:38.966578       1 task_exit.go:221] [ 6153] Transitioning from exit state TaskExitZombie to TaskExitDead
D0729 05:33:38.973755       1 urpc.go:534] urpc: successfully marshalled 7742 bytes.
runtime.mcall(0x0)
	/syzkaller/go/src/runtime/asm_amd64.s:318 +0x5b