diff --git a/winsup/cygwin/pinfo.cc b/winsup/cygwin/pinfo.cc
index f5a659d86..a504828fe 100644
--- a/winsup/cygwin/pinfo.cc
+++ b/winsup/cygwin/pinfo.cc
@@ -319,6 +319,19 @@ pinfo::init (pid_t n, DWORD flag, HANDLE h0)
 	  /* Fetching process info for /proc or ps?  just ignore this one. */
 	  if (flag & PID_NOREDIR)
 	    break;
+	  /* FIXME: Do we ever hit this case?  And if so, in what situation? */
+	  system_printf ("This shouldn't happen:\n"
+			 "    me: (%d, %d, %d, %W)\n"
+			 "    pid %d\n"
+			 "    process_state %y\n"
+			 "    cygstarted %d\n"
+			 "    dwProcessId %d\n"
+			 "    name %W",
+			 myself->pid, myself->dwProcessId, myself->cygstarted,
+			 myself->progname,
+			 procinfo->pid, procinfo->process_state,
+			 procinfo->cygstarted, procinfo->dwProcessId,
+			 procinfo->progname);
 	  /* If not populated, wait 2 seconds for procinfo to become populated.
 	     Would like to wait with finer granularity but that is not easily
 	     doable.  */