There was a regression by:

Re: [rfc, v3] Fix frame_id_inner comparison false positives
http://sourceware.org/ml/gdb-patches/2008-08/msg00578.html
http://sourceware.org/ml/gdb-cvs/2008-08/msg00182.html
916dde5d38b45a659514e47942ece70aec04cd78

the part:
	* stack.c (return_command): Directly pop the selected frame.

Reproducible on:
hp-diablo-01.rhts.eng.bos.redhat.com
RHEL5.5-Server-20100216.nightly
kernel-2.6.18-187.el5.ia64

Not reproducible on:
hp-bl860c-03.rhts.eng.bos.redhat.com
RHEL-4.8
kernel-2.6.9-89.EL.ia64

To make ia64-tdep.c compilable +/- this stack.c check-in one must apply:

Re: [RFC] Remove addr, endaddr, offset from obj_section
http://sourceware.org/ml/gdb-patches/2008-09/msg00011.html
http://sourceware.org/ml/gdb-cvs/2008-09/msg00009.html
99072369ec3c8f94c9a596e5ce30bf1f1c4bf20e

It is reproducible by:
	gdb.base/call-signal-resume.exp
although one must first remove the gdb_assert by:
	gdb-infcall-sp-underflow.patch

Reproducer:
	set confirm no
	set breakpoint pending on
	set height 0
	set width 0
	# testcase from: gdb-6.8-37.el5.src
	file gdb.base/call-signals
	break stop_one
	run
	call gen_signal ()
	bt
	frame 3
	return
	p/x $sp
	break stop_two
	info break
	p/x $pc
	p/x $sp
	bt
	set debug infrun 1
	delete 1
	continue
	bt
	p/x $pc
	echo Bug is reproduced if sp is now 0:\n
	p/x $sp
	kill
	quit


--- ./gdb/frame.c	2010-02-23 21:35:35.000000000 +0100
+++ ./gdb/frame.c	2010-02-23 21:46:34.000000000 +0100
@@ -517,7 +517,7 @@ frame_id_eq (struct frame_id l, struct f
    a stack overflow strategy that cause the handler to be run on a
    different stack.  */
 
-static int
+int
 frame_id_inner (struct gdbarch *gdbarch, struct frame_id l, struct frame_id r)
 {
   int inner;
--- ./gdb/frame.h	2009-09-13 18:28:28.000000000 +0200
+++ ./gdb/frame.h	2010-02-23 21:46:10.000000000 +0100
@@ -708,4 +708,7 @@ extern struct frame_info *create_new_fra
 extern int frame_unwinder_is (struct frame_info *fi,
 			      const struct frame_unwind *unwinder);
 
+extern int frame_id_inner (struct gdbarch *gdbarch, struct frame_id l,
+			   struct frame_id r);
+
 #endif /* !defined (FRAME_H)  */
--- ./gdb/stack.c	2010-02-23 21:35:34.000000000 +0100
+++ ./gdb/stack.c	2010-02-23 21:44:39.000000000 +0100
@@ -1967,8 +1967,29 @@ If you continue, the return value that y
 	error (_("Not confirmed"));
     }
 
-  /* Discard the selected frame and all frames inner-to it.  */
-  frame_pop (get_selected_frame (NULL));
+  /* NOTE: cagney/2003-01-18: Is this silly?  Rather than pop each
+     frame in turn, should this code just go straight to the relevant
+     frame and pop that?  */
+
+  /* First discard all frames inner-to the selected frame (making the
+     selected frame current).  */
+  {
+    struct frame_id selected_id = get_frame_id (get_selected_frame (NULL));
+    while (!frame_id_eq (selected_id, get_frame_id (get_current_frame ())))
+      {
+	struct frame_info *frame = get_current_frame ();
+	if (frame_id_inner (get_frame_arch (frame), selected_id,
+			    get_frame_id (frame)))
+	  /* Caught in the safety net, oops!  We've gone way past the
+             selected frame.  */
+	  error (_("Problem while popping stack frames (corrupt stack?)"));
+	frame_pop (get_current_frame ());
+      }
+  }
+
+  /* Second discard the selected frame (which is now also the current
+     frame).  */
+  frame_pop (get_current_frame ());
 
   /* Store RETURN_VALUE in the just-returned register set.  */
   if (return_value != NULL)