panic: WARNING: circular locking detected: kernel.signalHandlersMutex -> kernfs.filesystemRWMutex:
goroutine 1398938 [running]:
gvisor.dev/gvisor/pkg/sync/locking.(*ancestorsAtomicPtrMap).RangeRepeatable(0xc0002ee0b0, 0xc002ec47e0)
	bazel-out/k8-fastbuild-ST-3dcbe13c9b87/bin/pkg/sync/locking/atomicptrmap_ancestors_unsafe.go:441 +0x1dc
gvisor.dev/gvisor/pkg/sync/locking.checkLock(0xc000362fc0, 0xc0002ee090, {0x0, 0x0, 0x0})
	pkg/sync/locking/lockdep.go:98 +0x373
gvisor.dev/gvisor/pkg/sync/locking.AddGLock(0xc000362fc0, 0xffffffffffffffff)
	pkg/sync/locking/lockdep.go:126 +0x28c
gvisor.dev/gvisor/pkg/sentry/fsimpl/kernfs.(*filesystemRWMutex).Lock(0xc0003be710)
	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(0xc001950cf0, {0x79b3d0, 0xc0002177d0})
	pkg/sentry/fsimpl/kernfs/kernfs.go:286 +0x7e
gvisor.dev/gvisor/pkg/sentry/kernel.(*Cgroup).decRef(0xc0073659b0)
	pkg/sentry/kernel/cgroup.go:121 +0x5c
gvisor.dev/gvisor/pkg/sentry/kernel.(*TaskSet).newTask(0xc00020e070, {0x79b898, 0xc002ff6000}, 0xc002ec5310)
	pkg/sentry/kernel/task_start.go:244 +0x159b
gvisor.dev/gvisor/pkg/sentry/kernel.(*TaskSet).NewTask(0xc002ff6000?, {0x79b898, 0xc002ff6000}, 0xc002ec5310)
	pkg/sentry/kernel/task_start.go:127 +0xeb
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Clone(0xc002ff6000, 0xc002ec53f0)
	pkg/sentry/kernel/task_clone.go:219 +0x1e06
gvisor.dev/gvisor/pkg/sentry/syscalls/linux.clone(0x112c6f7?, 0x3d0f00, 0x7fa5e0dae2f0, 0x7fa5e0dae9d0, 0x7fa5e0dae9d0, 0x7fa5e0dae700)
	pkg/sentry/syscalls/linux/sys_thread.go:217 +0x145
gvisor.dev/gvisor/pkg/sentry/syscalls/linux.Clone(0xc002ec5578?, {{0x3d0f00}, {0x7fa5e0dae2f0}, {0x7fa5e0dae9d0}, {0x7fa5e0dae9d0}, {0x7fa5e0dae700}, {0x7fa5e0dae700}})
	pkg/sentry/syscalls/linux/sys_clone_amd64.go:36 +0x4e
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).executeSyscall(0xc002ff6000, 0x38, {{0x3d0f00}, {0x7fa5e0dae2f0}, {0x7fa5e0dae9d0}, {0x7fa5e0dae9d0}, {0x7fa5e0dae700}, {0x7fa5e0dae700}})
	pkg/sentry/kernel/task_syscall.go:142 +0x9b9
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke(0xc002ff6000, 0x0?, {{0x3d0f00}, {0x7fa5e0dae2f0}, {0x7fa5e0dae9d0}, {0x7fa5e0dae9d0}, {0x7fa5e0dae700}, {0x7fa5e0dae700}})
	pkg/sentry/kernel/task_syscall.go:322 +0x7d
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter(0xc0006ce840?, 0xc0070e2ea0?, {{0x3d0f00}, {0x7fa5e0dae2f0}, {0x7fa5e0dae9d0}, {0x7fa5e0dae9d0}, {0x7fa5e0dae700}, {0x7fa5e0dae700}})
	pkg/sentry/kernel/task_syscall.go:282 +0x8f
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall(0xc002ff6000)
	pkg/sentry/kernel/task_syscall.go:257 +0x4c5
gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute(0xc002ff6000?, 0xc002ff6000)
	pkg/sentry/kernel/task_run.go:253 +0x1965
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0xc002ff6000, 0xe69c)
	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