mkdir /tmp/X
touch /tmp/X/a
ln /tmp/X/a /tmp/X/b
ln -s /tmp/X/a /tmp/y
setattr --iunlink /tmp/X/a
echo 255 >/proc/sys/vserver/debug_misc

echo "test" >/tmp/y


[  131.878040] vxD: break link »/tmp/y«
[  131.880106] vxD: path_lookup(old): 0
[  131.880465] vxD: temp copy »/tmp/y©«
[  131.880782] vxD: path_lookup(new): 0
[  131.882558] vxD: lookup_create(new): 8f447f68
[  131.886694] vxD: vfs_create(new): 0
[  131.889464] vxD: dentry_open(old): 8f6ebf5c
[  131.891472] vxD: dentry_open(new): 8f441f5c
[  131.892202] vxD: file@b 8f441f5c,8f6ebf5c
[  131.892781] vxD: vfs_sendfile: 0
[  131.893051] vxD: file@a 8f441f5c,8f6ebf5c
[  131.893871] ------------[ cut here ]------------
[  131.894295] kernel BUG at fs/namei.c:1235!