panic: nested locking: kernfs.filesystemRWMutex:
goroutine 3869227 [running]:
gvisor.dev/gvisor/pkg/sentry/fsimpl/kernfs.(*filesystemRWMutex).Lock(0xc000216eb0)
	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(0xc006c94000, {0x82b658, 0xc00782aa80})
	pkg/sentry/fsimpl/kernfs/kernfs.go:286 +0x7e
gvisor.dev/gvisor/pkg/sentry/vfs.(*Dentry).DecRef(...)
	pkg/sentry/vfs/dentry.go:155
gvisor.dev/gvisor/pkg/sentry/vfs.VirtualDentry.DecRef({0xc000203980?, 0xc006c94000?}, {0x82b658, 0xc00782aa80})
	pkg/sentry/vfs/vfs.go:1019 +0x78
gvisor.dev/gvisor/pkg/sentry/vfs.(*VirtualFilesystem).forgetDeadMountpoint(0xc00022a1e0, {0x82b658, 0xc00782aa80}, 0xc006c94000)
	pkg/sentry/vfs/dentry.go:344 +0x293
gvisor.dev/gvisor/pkg/sentry/vfs.(*VirtualFilesystem).InvalidateDentry(0xc00798e318?, {0x82b658, 0xc00782aa80}, 0xc006c94000)
	pkg/sentry/vfs/dentry.go:249 +0x94
gvisor.dev/gvisor/pkg/sentry/fsimpl/kernfs.(*Filesystem).revalidateChildLocked(0x30ea40?, {0x82b658, 0xc00782aa80}, 0x4?, 0xc0001be000, {0xc00fa31e6c, 0x4}, 0xc006c94000)
	pkg/sentry/fsimpl/kernfs/filesystem.go:121 +0x15f
gvisor.dev/gvisor/pkg/sentry/fsimpl/kernfs.(*Filesystem).stepExistingLocked(0x12a7e39?, {0x82b658, 0xc00782aa80}, 0xc006c7cd80, 0xc0001be000)
	pkg/sentry/fsimpl/kernfs/filesystem.go:75 +0x3ea
gvisor.dev/gvisor/pkg/sentry/fsimpl/kernfs.(*Filesystem).walkExistingLocked(0xc000216eb0?, {0x82b658, 0xc00782aa80}, 0xc006c7cd80)
	pkg/sentry/fsimpl/kernfs/filesystem.go:160 +0xdf
gvisor.dev/gvisor/pkg/sentry/fsimpl/kernfs.(*Filesystem).OpenAt(0xc000216e60, {0x82b658, 0xc00782aa80}, 0xc006c7cd80, {0x8001, 0x0, 0x0})
	pkg/sentry/fsimpl/kernfs/filesystem.go:483 +0x1c5
gvisor.dev/gvisor/pkg/sentry/vfs.(*VirtualFilesystem).OpenAt(0xc006e05ac0?, {0x82b658, 0xc00782aa80}, 0xc00003bb00?, 0xc0024d5370, 0xc0024d5268)
	pkg/sentry/vfs/vfs.go:460 +0x517
gvisor.dev/gvisor/pkg/sentry/syscalls/linux.openat(0xc00782aa80, 0x1?, 0x12d2505?, 0x80001, 0x0)
	pkg/sentry/syscalls/linux/sys_file.go:112 +0x2b2
gvisor.dev/gvisor/pkg/sentry/syscalls/linux.Openat(0xc00782aa80?, 0x12d0919?, {{0xffffff9c}, {0x55a6dc8e0d29}, {0x80001}, {0x0}, {0x0}, {0x7f8763d08030}})
	pkg/sentry/syscalls/linux/sys_file.go:91 +0x45
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).executeSyscall(0xc00782aa80, 0x101, {{0xffffff9c}, {0x55a6dc8e0d29}, {0x80001}, {0x0}, {0x0}, {0x7f8763d08030}})
	pkg/sentry/kernel/task_syscall.go:142 +0x9c2
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke(0xc00782aa80, 0x0?, {{0xffffff9c}, {0x55a6dc8e0d29}, {0x80001}, {0x0}, {0x0}, {0x7f8763d08030}})
	pkg/sentry/kernel/task_syscall.go:322 +0x7d
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter(0xc0021ad110?, 0xc00594a960?, {{0xffffff9c}, {0x55a6dc8e0d29}, {0x80001}, {0x0}, {0x0}, {0x7f8763d08030}})
	pkg/sentry/kernel/task_syscall.go:282 +0x8f
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall(0xc00782aa80)
	pkg/sentry/kernel/task_syscall.go:257 +0x4c5
gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute(0xc00782aa80?, 0xc00782aa80)
	pkg/sentry/kernel/task_run.go:269 +0x1d4b
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0xc00782aa80, 0x70e)
	pkg/sentry/kernel/task_run.go:98 +0x41b
created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start
	pkg/sentry/kernel/task_start.go:377 +0x1ad