[Bug gdb/14766] New: vfork child exit with "set follow-fork-mode child" broken

["palves at redhat dot com" <sourceware-bugzilla@sourceware.org>]

http://sourceware.org/bugzilla/show_bug.cgi?id=14766

             Bug #: 14766
           Summary: vfork child exit with "set follow-fork-mode child"
                    broken
           Product: gdb
           Version: HEAD
            Status: NEW
          Severity: normal
          Priority: P2
         Component: gdb
        AssignedTo: unassigned@sourceware.org
        ReportedBy: palves@redhat.com
    Classification: Unclassified


#include <stdio.h>
#include <unistd.h>

int
main ()
{
  int pid;

  pid = vfork ();
  if (pid == 0)
    {
      printf ("I'm the child!\n");
      _exit (0);
    }
  else
    {
      printf ("I'm the proud parent of child #%d!\n", pid);
    }

  return 0;
}

$ ./gdb ./testsuite/gdb.base/foll-vfork-exit -ex "set follow-fork-mode child"
GNU gdb (GDB) 7.5.50.20121008-cvs
...
(gdb) r
Starting program:
/home/pedro/gdb/mygit/build/gdb/testsuite/gdb.base/foll-vfork-exit 
[New process 4673]
I'm the child!
I'm the proud parent of child #4673!
Couldn't get registers: No such process.
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Couldn't get registers: No such process.
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Couldn't get registers: No such process.
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
(gdb)

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