.

wcfs/internal/wcfs_virtmem.cpp

@@ -199,6 +199,20 @@ error _Conn::_pinner(context::Context ctx) {  // XXX error -> where?
     _Conn& wconn = *this;
 
     // XXX panic/exc -> log.CRITICAL
+#if 0
+    // if pinner fails, wcfs will kill us.
+    // log pinner exception so the error is not hidden.
+    // print to stderr as well as by default log does not print to there.
+    def _():
+        exc = sys.exc_info()[1]
+        if exc in (None, context.canceled): # canceled = .close asks pinner to stop
+            return
+        log.critical('pinner failed:', exc_info=1)
+        print('CRITICAL: pinner failed:', file=sys.stderr)
+        traceback.print_exc(file=sys.stderr)
+        print('\nCRITICAL: wcfs server will likely kill us soon.', file=sys.stderr)
+    defer(_)
+#endif
 
     PinReq req;
     error  err;
@@ -219,9 +233,22 @@ error _Conn::_pinner(context::Context ctx) {  // XXX error -> where?
 void _Conn::_pin1(PinReq *req) {
     _Conn& wconn = *this;
 
-    // XXX defer: reply either ack or nak on error
     // XXX return error?
 
+    // XXX defer: reply either ack or nak on error
+#if 0
+    // reply either ack or nak on error
+    def _():
+        ack = "ack"
+        exc = sys.exc_info()[1]
+        if exc is not None:
+            ack = "nak: %s" % exc
+        #req.reply(ack)
+        ctx = context.background()  # XXX ok?
+        wconn._wlink.replyReq(ctx, req, ack)
+    defer(_)
+#endif
+
     _File *f;
     bool  ok;
     wconn._filemu.lock();