panic: WARNING: circular locking detected: kernel.signalHandlersMutex -> kernfs.filesystemRWMutex:
goroutine 136156 [running]:
gvisor.dev/gvisor/pkg/sync/locking.(*ancestorsAtomicPtrMap).RangeRepeatable(0xc0001a40b0, 0xc000f827e0)
	bazel-out/k8-fastbuild-ST-3dcbe13c9b87/bin/pkg/sync/locking/atomicptrmap_ancestors_unsafe.go:441 +0x1dc
gvisor.dev/gvisor/pkg/sync/locking.checkLock(0xc0002f6fc0, 0xc0001a4090, {0x0, 0x0, 0x0})
	pkg/sync/locking/lockdep.go:98 +0x373
gvisor.dev/gvisor/pkg/sync/locking.AddGLock(0xc0002f6fc0, 0xffffffffffffffff)
	pkg/sync/locking/lockdep.go:126 +0x28c
gvisor.dev/gvisor/pkg/sentry/fsimpl/kernfs.(*filesystemRWMutex).Lock(0xc002c60a70)
	bazel-out/k8-fastbuild-ST-3dcbe13c9b87/bin/pkg/sentry/fsimpl/kernfs/filesystem_mutex.go:31 +0x45
gvisor.dev/gvisor/pkg/sentry/fsimpl/kernfs.(*Dentry).DecRef(0xc006bb2990, {0x79b3d0, 0xc0001b41e0})
	pkg/sentry/fsimpl/kernfs/kernfs.go:286 +0x7e
gvisor.dev/gvisor/pkg/sentry/kernel.(*Cgroup).decRef(0xc0056adcc8)
	pkg/sentry/kernel/cgroup.go:121 +0x5c
gvisor.dev/gvisor/pkg/sentry/kernel.(*TaskSet).newTask(0xc0002de0e0, {0x79b898, 0xc005bf1500}, 0xc000f83310)
	pkg/sentry/kernel/task_start.go:244 +0x159b
gvisor.dev/gvisor/pkg/sentry/kernel.(*TaskSet).NewTask(0xc005bf1500?, {0x79b898, 0xc005bf1500}, 0xc000f83310)
	pkg/sentry/kernel/task_start.go:127 +0xeb
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Clone(0xc005bf1500, 0xc000f833f0)
	pkg/sentry/kernel/task_clone.go:219 +0x1e06
gvisor.dev/gvisor/pkg/sentry/syscalls/linux.clone(0x112c6f7?, 0x3d0f00, 0x7f896258d2f0, 0x7f896258d9d0, 0x7f896258d9d0, 0x7f896258d700)
	pkg/sentry/syscalls/linux/sys_thread.go:217 +0x145
gvisor.dev/gvisor/pkg/sentry/syscalls/linux.Clone(0xc000f83578?, {{0x3d0f00}, {0x7f896258d2f0}, {0x7f896258d9d0}, {0x7f896258d9d0}, {0x7f896258d700}, {0x7f896258d700}})
	pkg/sentry/syscalls/linux/sys_clone_amd64.go:36 +0x4e
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).executeSyscall(0xc005bf1500, 0x38, {{0x3d0f00}, {0x7f896258d2f0}, {0x7f896258d9d0}, {0x7f896258d9d0}, {0x7f896258d700}, {0x7f896258d700}})
	pkg/sentry/kernel/task_syscall.go:142 +0x9b9
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke(0xc005bf1500, 0x0?, {{0x3d0f00}, {0x7f896258d2f0}, {0x7f896258d9d0}, {0x7f896258d9d0}, {0x7f896258d700}, {0x7f896258d700}})
	pkg/sentry/kernel/task_syscall.go:322 +0x7d
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter(0xc0010fa330?, 0xc004639e10?, {{0x3d0f00}, {0x7f896258d2f0}, {0x7f896258d9d0}, {0x7f896258d9d0}, {0x7f896258d700}, {0x7f896258d700}})
	pkg/sentry/kernel/task_syscall.go:282 +0x8f
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall(0xc005bf1500)
	pkg/sentry/kernel/task_syscall.go:257 +0x4c5
gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute(0xc005bf1500?, 0xc005bf1500)
	pkg/sentry/kernel/task_run.go:253 +0x1965
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0xc005bf1500, 0x179a)
	pkg/sentry/kernel/task_run.go:94 +0x3a2
created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start
	pkg/sentry/kernel/task_start.go:380 +0x1ad