panic: WARNING: circular locking detected: kernel.signalHandlersMutex -> kernfs.filesystemRWMutex:
goroutine 327 [running]:
gvisor.dev/gvisor/pkg/sync/locking.(*ancestorsAtomicPtrMap).RangeRepeatable(0xc0002c60b0, 0xc001d7a7e0)
	bazel-out/k8-fastbuild-ST-3dcbe13c9b87/bin/pkg/sync/locking/atomicptrmap_ancestors_unsafe.go:441 +0x1dc
gvisor.dev/gvisor/pkg/sync/locking.checkLock(0xc0002fcfc0, 0xc0002c6090, {0x0, 0x0, 0x0})
	pkg/sync/locking/lockdep.go:98 +0x373
gvisor.dev/gvisor/pkg/sync/locking.AddGLock(0xc0002fcfc0, 0xffffffffffffffff)
	pkg/sync/locking/lockdep.go:126 +0x28c
gvisor.dev/gvisor/pkg/sentry/fsimpl/kernfs.(*filesystemRWMutex).Lock(0xc00037e830)
	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(0xc00275f290, {0x7991b0, 0xc0005a75c0})
	pkg/sentry/fsimpl/kernfs/kernfs.go:286 +0x7e
gvisor.dev/gvisor/pkg/sentry/kernel.(*Cgroup).decRef(0xc000424ed0)
	pkg/sentry/kernel/cgroup.go:121 +0x5c
gvisor.dev/gvisor/pkg/sentry/kernel.(*TaskSet).newTask(0xc000342230, {0x799678, 0xc000bde000}, 0xc001d7b310)
	pkg/sentry/kernel/task_start.go:244 +0x159b
gvisor.dev/gvisor/pkg/sentry/kernel.(*TaskSet).NewTask(0xc000bde000?, {0x799678, 0xc000bde000}, 0xc001d7b310)
	pkg/sentry/kernel/task_start.go:127 +0xeb
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Clone(0xc000bde000, 0xc001d7b3f0)
	pkg/sentry/kernel/task_clone.go:219 +0x1e06
gvisor.dev/gvisor/pkg/sentry/syscalls/linux.clone(0x1127337?, 0x1200011, 0x0, 0x0, 0x558f477d06d0, 0x0)
	pkg/sentry/syscalls/linux/sys_thread.go:216 +0x145
gvisor.dev/gvisor/pkg/sentry/syscalls/linux.Clone(0xc001d7b578?, {{0x1200011}, {0x0}, {0x0}, {0x558f477d06d0}, {0x0}, {0x558f477d0400}})
	pkg/sentry/syscalls/linux/sys_clone_amd64.go:36 +0x4e
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).executeSyscall(0xc000bde000, 0x38, {{0x1200011}, {0x0}, {0x0}, {0x558f477d06d0}, {0x0}, {0x558f477d0400}})
	pkg/sentry/kernel/task_syscall.go:142 +0x9b9
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke(0xc000bde000, 0x0?, {{0x1200011}, {0x0}, {0x0}, {0x558f477d06d0}, {0x0}, {0x558f477d0400}})
	pkg/sentry/kernel/task_syscall.go:322 +0x7d
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter(0xc0007ec060?, 0xc0008f9110?, {{0x1200011}, {0x0}, {0x0}, {0x558f477d06d0}, {0x0}, {0x558f477d0400}})
	pkg/sentry/kernel/task_syscall.go:282 +0x8f
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall(0xc000bde000)
	pkg/sentry/kernel/task_syscall.go:257 +0x4c5
gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute(0xc000bde000?, 0xc000bde000)
	pkg/sentry/kernel/task_run.go:253 +0x1965
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0xc000bde000, 0x2c)
	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