diff --git a/lib/commands/admin-rpc.js b/lib/commands/admin-rpc.js
index 13d6a8c36..7b4334c24 100644
--- a/lib/commands/admin-rpc.js
+++ b/lib/commands/admin-rpc.js
@@ -2,11 +2,23 @@
 const nThen = require("nthen");
 const getFolderSize = require("get-folder-size");
 const Util = require("../common-util");
+const Ulimit = require("ulimit");
 
 var Fs = require("fs");
 
 var Admin = module.exports;
 
+var getFileDescriptorCount = function (Env, server, cb) {
+    Fs.readdir('/proc/self/fd', function(err, list) {
+        if (err) { return void cb(err); }
+        cb(void 0, list.length);
+    });
+};
+
+var getFileDescriptorLimit = function (env, server, cb) {
+    Ulimit(cb);
+};
+
 var getActiveSessions = function (Env, Server, cb) {
     var stats = Server.getSessionStats();
     cb(void 0, [
@@ -105,6 +117,8 @@ var commands = {
     DISK_USAGE: getDiskUsage,
     FLUSH_CACHE: flushCache,
     SHUTDOWN: shutdown,
+    GET_FILE_DESCRIPTOR_COUNT: getFileDescriptorCount,
+    GET_FILE_DESCRIPTOR_LIMIT: getFileDescriptorLimit,
 };
 
 Admin.command = function (Env, safeKey, data, _cb, Server) {
diff --git a/lib/commands/pin-rpc.js b/lib/commands/pin-rpc.js
index 2888f1e61..c15d64e30 100644
--- a/lib/commands/pin-rpc.js
+++ b/lib/commands/pin-rpc.js
@@ -546,6 +546,8 @@ const deferResponse = function (Env, channel, cb) {
 };
 
 Pinning.isChannelPinned = function (Env, channel, cb) {
+    return void cb(void 0, true); // XXX
+/*
     // if the pins are fully loaded then you can answer yes/no definitively
     if (Env.pinsLoaded) {
         return void cb(void 0, !isEmpty(Env.pinnedPads[channel]));
@@ -559,5 +561,6 @@ Pinning.isChannelPinned = function (Env, channel, cb) {
     // as you learn that one account has pinned a file.
     // negative responses have to wait until the end
     deferResponse(Env, channel, cb);
+*/
 };
 
diff --git a/lib/hk-util.js b/lib/hk-util.js
index 3f0aed360..cb9e9b8ef 100644
--- a/lib/hk-util.js
+++ b/lib/hk-util.js
@@ -436,7 +436,8 @@ const storeMessage = function (Env, channel, msg, isCp, optionalMessageHash) {
       * -1 if you didn't find it
 
 */
-const getHistoryOffset = (Env, channelName, lastKnownHash, cb) => {
+const getHistoryOffset = (Env, channelName, lastKnownHash, _cb) => {
+    const cb = Util.once(Util.mkAsync(_cb));
     const store = Env.store;
     const Log = Env.Log;
 
diff --git a/lib/rpc.js b/lib/rpc.js
index c54edf31d..241f77d41 100644
--- a/lib/rpc.js
+++ b/lib/rpc.js
@@ -198,7 +198,7 @@ RPC.create = function (Env, cb) {
     updateLimitDaily();
     Env.intervals.dailyLimitUpdate = setInterval(updateLimitDaily, 24*3600*1000);
 
-    Pinning.loadChannelPins(Env);
+    //Pinning.loadChannelPins(Env); // XXX
 
     // expire old sessions once per minute
     Env.intervals.sessionExpirationInterval = setInterval(function () {
diff --git a/lib/storage/file.js b/lib/storage/file.js
index 6d2c672a5..053ecc9c7 100644
--- a/lib/storage/file.js
+++ b/lib/storage/file.js
@@ -101,6 +101,9 @@ var getMetadataAtPath = function (Env, path, _cb) {
         if (i++ > 0) {
             console.log("aborting");
             abort();
+            try { stream.close(); } catch (err) {
+                console.log("could not close stream");
+            }
             return void cb();
         }
         var metadata;
@@ -890,7 +893,7 @@ var trimChannel = function (env, channelName, hash, _cb) {
         var retain = false;
 
         var handler = function (msgObj, readMore, abort) {
-            if (ABORT) { return void abort(); }
+            if (ABORT) { return void abort(); } // XXX
             // the first message might be metadata... ignore it if so
             if (i++ === 0 && msgObj.buff.indexOf('{') === 0) {
                 return readMore();
diff --git a/lib/stream-file.js b/lib/stream-file.js
index dc44aaf50..c3130365b 100644
--- a/lib/stream-file.js
+++ b/lib/stream-file.js
@@ -67,7 +67,15 @@ Stream.readFileBin = (stream, msgHandler, cb) => {
         mkBufferSplit(),
         mkOffsetCounter(),
         Pull.asyncMap((data, moreCb) => {
-            msgHandler(data, moreCb, () => { keepReading = false; moreCb(); });
+            msgHandler(data, moreCb, () => {
+                try {
+                    stream.close();
+                } catch (err) {
+                    console.error("READ_FILE_BIN_ERR", err);
+                }
+                keepReading = false;
+                moreCb();
+            });
         }),
         Pull.drain(() => (keepReading), (err) => {
             cb((keepReading) ? err : undefined);
diff --git a/www/kanban/inner.js b/www/kanban/inner.js
index ade42f271..ab7b98066 100644
--- a/www/kanban/inner.js
+++ b/www/kanban/inner.js
@@ -102,6 +102,8 @@ define([
         }
         html += cursor.name + '</span>';
 
+        // XXX breaks on "😶"
+        // https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/charAt#Getting_whole_characters
         var l = (cursor.name || Messages.anonymous).slice(0,1).toUpperCase();
 
         var text = '';
@@ -786,6 +788,7 @@ define([
             var boardExists = function (b) { return b.id === "board" + counter; };
             while (kanban.options.boards.some(boardExists)) { counter++; }
             */
+            // XXX confirm that it doesn't collide with an existing id? unlikely but possible
             var id = Util.createRandomInteger();
 
             kanban.addBoard({