From d97247860a39faaf3bf83beabd3fbb9f136e4999 Mon Sep 17 00:00:00 2001
From: Cyprien Noel <cyprien.noel@gmail.com>
Date: Sun, 25 Sep 2016 14:39:14 -0700
Subject: [PATCH] Handle filesystems without lock support. NFS can be setup
 this way.

---
 src/caffe/util/db_lmdb.cpp | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/caffe/util/db_lmdb.cpp b/src/caffe/util/db_lmdb.cpp
index fb1d4956aa1..bde4bc798f6 100644
--- a/src/caffe/util/db_lmdb.cpp
+++ b/src/caffe/util/db_lmdb.cpp
@@ -20,8 +20,8 @@ void LMDB::Open(const string& source, Mode mode) {
 #ifndef ALLOW_LMDB_NOLOCK
   MDB_CHECK(rc);
 #else
-  if (rc == EACCES) {
-    LOG(WARNING) << "Permission denied. Trying with MDB_NOLOCK ...";
+  if (rc == EACCES || rc == ENOLCK) {
+    LOG(WARNING) << "Permission denied or no locks. Trying with MDB_NOLOCK ...";
     // Close and re-open environment handle
     mdb_env_close(mdb_env_);
     MDB_CHECK(mdb_env_create(&mdb_env_));