panic: nested locking: kernel.taskSetRWMutex:
goroutine 338 [running]:
gvisor.dev/gvisor/pkg/sentry/kernel.(*taskSetRWMutex).RLock(0xc0004d01c0)
	bazel-out/k8-fastbuild-ST-3dcbe13c9b87/bin/pkg/sentry/kernel/taskset_mutex.go:59 +0x45
gvisor.dev/gvisor/pkg/sentry/kernel.(*ThreadGroup).Leader(0xc000534000)
	pkg/sentry/kernel/threads.go:403 +0x6b
gvisor.dev/gvisor/pkg/sentry/kernel/fasync.(*FileAsync).NotifyEvent(0xc0004604d0, 0x1)
	pkg/sentry/kernel/fasync/fasync.go:102 +0x1a5
gvisor.dev/gvisor/pkg/waiter.(*Queue).Notify(0xc0009247c0, 0x1)
	pkg/waiter/waiter.go:237 +0xae
gvisor.dev/gvisor/pkg/sentry/fsimpl/signalfd.(*SignalFileDescription).NotifyEvent(0xc000924750, 0x10e4752?)
	pkg/sentry/fsimpl/signalfd/signalfd.go:147 +0x3a
gvisor.dev/gvisor/pkg/waiter.(*Queue).Notify(0xc00064d170, 0x400)
	pkg/waiter/waiter.go:237 +0xae
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).canReceiveSignalLocked(0xc00064ca80, 0xb)
	pkg/sentry/kernel/task_signals.go:526 +0xeb
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).sendSignalTimerLocked(0xc00064ca80, 0xc000692600, 0x0, 0x0)
	pkg/sentry/kernel/task_signals.go:469 +0x496
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).sendSignalLocked(...)
	pkg/sentry/kernel/task_signals.go:407
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).SendSignal(0xc00064ca80, 0x4b9f33?)
	pkg/sentry/kernel/task_signals.go:384 +0x209
gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute(0xc00064ca80?, 0xc00064ca80)
	pkg/sentry/kernel/task_run.go:316 +0x18cd
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0xc00064ca80, 0xe)
	pkg/sentry/kernel/task_run.go:94 +0x3a2
created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start
	pkg/sentry/kernel/task_start.go:377 +0x1ad