info locals gives error

[Nick Roberts <nickrob at snap dot net dot nz>]

I've just upgraded to Fedora Core 5 (kernel 2.6.15-1.2054_FC5) and with the
program below I get errors which didn't occur before (Fedora Core 3).  This
error might relate to Vladimir Prus's earlier report
(http://sources.redhat.com/ml/gdb-patches/2006-03/msg00225.html) and
value_print.


/* -*- compile-command: "cc -g -o simple simple.c"; -*- */

main(int argc, char **argv) {
  int i;
  i = 1;
}

Fedora's GDB:

  nickrob/160 gdb simple
  GNU gdb Red Hat Linux (6.3.0.0-1.122rh)
  Copyright 2004 Free Software Foundation, Inc.
  GDB is free software, covered by the GNU General Public License, and you are
  welcome to change it and/or distribute copies of it under certain conditions.
  Type "show copying" to see the conditions.
  There is absolutely no warranty for GDB.  Type "show warranty" for details.
  This GDB was configured as "i386-redhat-linux-gnu"...Using host libthread_db library "/lib/libthread_db.so.1".

  (gdb) b main
  Breakpoint 1 at 0x8048354: file simple.c, line 3.
  (gdb) r
  Starting program: /home/nickrob/simple
  Reading symbols from shared object read from target memory...done.
  Loaded system supplied DSO at 0x80e000
  
  Breakpoint 1, main () at simple.c:3
  3       main(int argc, char **argv) {
  (gdb) info locals
  argc = Cannot access memory at address 0x0
  (gdb) The program is running.  Exit anyway? (y or n) y


With current GDB:

  nickrob/161 ~/src/gdb/gdb simple
  GNU gdb 6.4.50.20060327-cvs
  Copyright (C) 2006 Free Software Foundation, Inc.
  GDB is free software, covered by the GNU General Public License, and you are
  welcome to change it and/or distribute copies of it under certain conditions.
  Type "show copying" to see the conditions.
  There is absolutely no warranty for GDB.  Type "show warranty" for details.
  This GDB was configured as "i686-pc-linux-gnu"...Using host libthread_db library "/lib/libthread_db.so.1".
  
  (gdb) b main
  Breakpoint 1 at 0x8048365: file simple.c, line 5.
  (gdb) r
  Starting program: /home/nickrob/simple
  
  Breakpoint 1, main () at simple.c:5
  5         i = 1;
  (gdb) info locals
  argc = Cannot access memory at address 0x0
  (gdb)


gcc --version gives "gcc (GCC) 4.1.0 20060304 (Red Hat 4.1.0-3)".