panic: nested locking: kernfs.filesystemRWMutex:
goroutine 3421880 [running]:
gvisor.dev/gvisor/pkg/sentry/fsimpl/kernfs.(*filesystemRWMutex).Lock(0xc00056ccd0)
	bazel-out/k8-fastbuild-ST-3dcbe13c9b87/bin/pkg/sentry/fsimpl/kernfs/filesystem_mutex.go:31 +0x58
gvisor.dev/gvisor/pkg/sentry/fsimpl/kernfs.(*Dentry).DecRef(0xc0040901b0, {0x770500, 0xc001204a80})
	pkg/sentry/fsimpl/kernfs/kernfs.go:286 +0xcf
gvisor.dev/gvisor/pkg/sentry/vfs.(*Dentry).DecRef(0xc0040901b0, {0x770500, 0xc001204a80})
	pkg/sentry/vfs/dentry.go:155 +0x71
gvisor.dev/gvisor/pkg/sentry/vfs.VirtualDentry.DecRef({0xc000237e00?, 0xc0040901b0?}, {0x770500, 0xc001204a80})
	pkg/sentry/vfs/vfs.go:1019 +0x6a
gvisor.dev/gvisor/pkg/sentry/vfs.(*VirtualFilesystem).forgetDeadMountpoint(0xc0005728e0, {0x770500, 0xc001204a80}, 0xc0040901b0)
	pkg/sentry/vfs/dentry.go:344 +0x2fa
gvisor.dev/gvisor/pkg/sentry/vfs.(*VirtualFilesystem).InvalidateDentry(0xc013293f50?, {0x770500, 0xc001204a80}, 0xc0040901b0)
	pkg/sentry/vfs/dentry.go:249 +0xae
gvisor.dev/gvisor/pkg/sentry/fsimpl/kernfs.(*Filesystem).revalidateChildLocked(0x311b20?, {0x770500, 0xc001204a80}, 0x4?, 0xc0003ab7a0, {0xc0048c679c, 0x4}, 0xc0040901b0)
	pkg/sentry/fsimpl/kernfs/filesystem.go:121 +0x1c9
gvisor.dev/gvisor/pkg/sentry/fsimpl/kernfs.(*Filesystem).stepExistingLocked(0xc004374000?, {0x770500, 0xc001204a80}, 0xc004374000, 0xc0003ab7a0)
	pkg/sentry/fsimpl/kernfs/filesystem.go:75 +0x525
gvisor.dev/gvisor/pkg/sentry/fsimpl/kernfs.(*Filesystem).walkExistingLocked(0xc00056ccd0?, {0x770500, 0xc001204a80}, 0xc004374000)
	pkg/sentry/fsimpl/kernfs/filesystem.go:160 +0x11b
gvisor.dev/gvisor/pkg/sentry/fsimpl/kernfs.(*Filesystem).OpenAt(0xc00056cc80, {0x770500, 0xc001204a80}, 0xc004374000, {0x8001, 0x0, 0x0})
	pkg/sentry/fsimpl/kernfs/filesystem.go:483 +0x18d
gvisor.dev/gvisor/pkg/sentry/vfs.(*VirtualFilesystem).OpenAt(0xc20c1e1840?, {0x770500, 0xc001204a80}, 0xc000644900?, 0xc003895428, 0xc0038952f8)
	pkg/sentry/vfs/vfs.go:460 +0x6bc
gvisor.dev/gvisor/pkg/sentry/syscalls/linux.openat(0xc001204a80, 0x2868f44?, 0x1?, 0x80001, 0x0)
	pkg/sentry/syscalls/linux/sys_file.go:112 +0x365
gvisor.dev/gvisor/pkg/sentry/syscalls/linux.Openat(0x0?, 0xc0038955d0?, {{0xffffff9c}, {0x55ae1af49d29}, {0x80001}, {0x0}, {0x0}, {0x7f2eb6c29030}})
	pkg/sentry/syscalls/linux/sys_file.go:91 +0xcb
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).executeSyscall(0xc001204a80, 0x101, {{0xffffff9c}, {0x55ae1af49d29}, {0x80001}, {0x0}, {0x0}, {0x7f2eb6c29030}})
	pkg/sentry/kernel/task_syscall.go:142 +0xabf
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke(0xc001204a80, 0x1?, {{0xffffff9c}, {0x55ae1af49d29}, {0x80001}, {0x0}, {0x0}, {0x7f2eb6c29030}})
	pkg/sentry/kernel/task_syscall.go:322 +0x8e
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter(0xc003e0b770?, 0xc003895b37?, {{0xffffff9c}, {0x55ae1af49d29}, {0x80001}, {0x0}, {0x0}, {0x7f2eb6c29030}})
	pkg/sentry/kernel/task_syscall.go:282 +0xc5
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall(0xc001204a80)
	pkg/sentry/kernel/task_syscall.go:257 +0x53b
gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute(0xc001204a80?, 0xc001204a80)
	pkg/sentry/kernel/task_run.go:269 +0x22b4
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0xc001204a80, 0x253a)
	pkg/sentry/kernel/task_run.go:98 +0x35b
created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start
	pkg/sentry/kernel/task_start.go:377 +0x1da