2011-08-01 Tristan Gingold <gingold@adacore.com>

* darwin-nat.c (darwin_decode_exception_message): Adjust assertion.

gdb/ChangeLog

@@ -1,3 +1,7 @@
+2011-08-01  Tristan Gingold  <gingold@adacore.com>
+
+	* darwin-nat.c (darwin_decode_exception_message): Adjust assertion.
+
 2011-07-31  Thiago Jung Bauermann  <bauerman@br.ibm.com>
 
 	* breakpoint.c (insert_bp_location): Document return value.

gdb/darwin-nat.c

@@ -615,8 +615,11 @@ darwin_decode_exception_message (mach_msg_header_t *hdr,
     return -1;
   *pthread = thread;
 
+  /* The thread should be running.  However we have observed cases where a thread
+     got a SIGTTIN message after being stopped.  */
+  gdb_assert (thread->msg_state != DARWIN_MESSAGE);
+
   /* Finish decoding.  */
-  gdb_assert (thread->msg_state == DARWIN_RUNNING);
   thread->event.header = *hdr;
   thread->event.thread_port = thread_port;
   thread->event.task_port = task_port;