panic: nested locking: kernfs.filesystemRWMutex:
goroutine 2890693 [running]:
gvisor.dev/gvisor/pkg/sentry/fsimpl/kernfs.(*filesystemRWMutex).Lock(0xc00064ac30)
	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(0xc003186870, {0x7727a0, 0xc00b819500})
	pkg/sentry/fsimpl/kernfs/kernfs.go:286 +0xcf
gvisor.dev/gvisor/pkg/sentry/vfs.(*Dentry).DecRef(0xc003186870, {0x7727a0, 0xc00b819500})
	pkg/sentry/vfs/dentry.go:155 +0x71
gvisor.dev/gvisor/pkg/sentry/vfs.VirtualDentry.DecRef({0xc000207880?, 0xc003186870?}, {0x7727a0, 0xc00b819500})
	pkg/sentry/vfs/vfs.go:1015 +0x6a
gvisor.dev/gvisor/pkg/sentry/vfs.(*VirtualFilesystem).forgetDeadMountpoint(0xc000273de0, {0x7727a0, 0xc00b819500}, 0xc003186870)
	pkg/sentry/vfs/dentry.go:344 +0x2fa
gvisor.dev/gvisor/pkg/sentry/vfs.(*VirtualFilesystem).InvalidateDentry(0xc0017a9ba8?, {0x7727a0, 0xc00b819500}, 0xc003186870)
	pkg/sentry/vfs/dentry.go:249 +0xae
gvisor.dev/gvisor/pkg/sentry/fsimpl/kernfs.(*Filesystem).revalidateChildLocked(0x312560?, {0x7727a0, 0xc00b819500}, 0x4?, 0xc0006fc5a0, {0xc00a23e58c, 0x4}, 0xc003186870)
	pkg/sentry/fsimpl/kernfs/filesystem.go:121 +0x1c9
gvisor.dev/gvisor/pkg/sentry/fsimpl/kernfs.(*Filesystem).stepExistingLocked(0xc00a22a480?, {0x7727a0, 0xc00b819500}, 0xc00a22a480, 0xc0006fc5a0)
	pkg/sentry/fsimpl/kernfs/filesystem.go:75 +0x525
gvisor.dev/gvisor/pkg/sentry/fsimpl/kernfs.(*Filesystem).walkExistingLocked(0xc00064ac30?, {0x7727a0, 0xc00b819500}, 0xc00a22a480)
	pkg/sentry/fsimpl/kernfs/filesystem.go:160 +0x11b
gvisor.dev/gvisor/pkg/sentry/fsimpl/kernfs.(*Filesystem).OpenAt(0xc00064abe0, {0x7727a0, 0xc00b819500}, 0xc00a22a480, {0x8001, 0x0, 0x0})
	pkg/sentry/fsimpl/kernfs/filesystem.go:483 +0x18d
gvisor.dev/gvisor/pkg/sentry/vfs.(*VirtualFilesystem).OpenAt(0xc00e2ba680?, {0x7727a0, 0xc00b819500}, 0xc00072bb00?, 0xc008c25428, 0xc008c252f8)
	pkg/sentry/vfs/vfs.go:460 +0x6bc
gvisor.dev/gvisor/pkg/sentry/syscalls/linux.openat(0xc00b819500, 0x2876f04?, 0x1?, 0x80001, 0x0)
	pkg/sentry/syscalls/linux/sys_file.go:112 +0x365
gvisor.dev/gvisor/pkg/sentry/syscalls/linux.Openat(0x0?, 0xc008c255d0?, {{0xffffff9c}, {0x55f943be2d29}, {0x80001}, {0x0}, {0x0}, {0x7fcf10a71030}})
	pkg/sentry/syscalls/linux/sys_file.go:91 +0xcb
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).executeSyscall(0xc00b819500, 0x101, {{0xffffff9c}, {0x55f943be2d29}, {0x80001}, {0x0}, {0x0}, {0x7fcf10a71030}})
	pkg/sentry/kernel/task_syscall.go:142 +0xabf
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke(0xc00b819500, 0x1?, {{0xffffff9c}, {0x55f943be2d29}, {0x80001}, {0x0}, {0x0}, {0x7fcf10a71030}})
	pkg/sentry/kernel/task_syscall.go:322 +0x8e
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter(0xc01289bd10?, 0xc008c25b37?, {{0xffffff9c}, {0x55f943be2d29}, {0x80001}, {0x0}, {0x0}, {0x7fcf10a71030}})
	pkg/sentry/kernel/task_syscall.go:282 +0xc5
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall(0xc00b819500)
	pkg/sentry/kernel/task_syscall.go:257 +0x53b
gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute(0xc00b819500?, 0xc00b819500)
	pkg/sentry/kernel/task_run.go:269 +0x22b4
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0xc00b819500, 0x81b)
	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