diff -urN linux-2.6.38.2-orig/fs/proc/base.c linux-2.6.38.2/fs/proc/base.c
--- linux-2.6.38.2-orig/fs/proc/base.c	2011-03-28 03:37:20 +0900
+++ linux-2.6.38.2/fs/proc/base.c	2011-04-10 22:22:18 +0900
@@ -1757,7 +1757,7 @@
  * due to the way we treat inodes.
  *
  * Rewrite the inode's ownerships here because the owning task may have
- * performed a setuid(), etc.
+ * performed a setuid(), etc.  Also update file position for FD entries.
  *
  * Before the /proc/pid/status file was created the only way to read
  * the effective uid of a /process was to stat /proc/pid.  Reading
@@ -1947,6 +1947,7 @@
 	struct task_struct *task;
 	int fd;
 	struct files_struct *files;
+	struct file *file;
 	const struct cred *cred;
 
 	if (nd && nd->flags & LOOKUP_RCU)
@@ -1960,7 +1961,9 @@
 		files = get_files_struct(task);
 		if (files) {
 			rcu_read_lock();
-			if (fcheck_files(files, fd)) {
+			file = fcheck_files(files, fd);
+			if (file) {
+				inode->i_size = file->f_pos;
 				rcu_read_unlock();
 				put_files_struct(files);
 				if (task_dumpable(task)) {
@@ -2029,7 +2032,7 @@
 	put_files_struct(files);
 
 	inode->i_op = &proc_pid_link_inode_operations;
-	inode->i_size = 64;
+	inode->i_size = file->f_pos;
 	ei->op.proc_get_link = proc_fd_link;
 	d_set_d_op(dentry, &tid_fd_dentry_operations);
 	d_add(dentry, inode);