diff --git a/gdb/gdbserver/ChangeLog b/gdb/gdbserver/ChangeLog
index 37d192aade1..7a7afcc61a1 100644
--- a/gdb/gdbserver/ChangeLog
+++ b/gdb/gdbserver/ChangeLog
@@ -1,3 +1,7 @@
+2008-05-29  Ulrich Weigand  <uweigand@de.ibm.com>
+
+	* linux-ppc-low.c (ppc_collect_ptrace_register): Clear buffer.
+
 2008-05-09  Doug Evans  <dje@google.com>
 
 	* server.h (decode_search_memory_packet): Declare.
diff --git a/gdb/gdbserver/linux-ppc-low.c b/gdb/gdbserver/linux-ppc-low.c
index 84f9d374e92..c03b50a2cf1 100644
--- a/gdb/gdbserver/linux-ppc-low.c
+++ b/gdb/gdbserver/linux-ppc-low.c
@@ -149,6 +149,9 @@ static void
 ppc_collect_ptrace_register (int regno, char *buf)
 {
   int size = register_size (regno);
+
+  memset (buf, 0, sizeof (long));
+
   if (size < sizeof (long))
     collect_register (regno, buf + sizeof (long) - size);
   else