diff --git a/addons/mrp/mrp.py b/addons/mrp/mrp.py
index aac2e725f96..f1fa08f9fe9 100644
--- a/addons/mrp/mrp.py
+++ b/addons/mrp/mrp.py
@@ -781,7 +781,8 @@ class mrp_production(osv.osv):
         proc_obj = self.pool.get("procurement.order")
         procs = proc_obj.search(cr, uid, [('production_id', 'in', ids)], context=context)
         if procs:
-            proc_obj.message_post(cr, uid, procs, body=_('Manufacturing order cancelled.'), context=context)
+            for proc in procs:
+                proc_obj.message_post(cr, uid, proc, body=_('Manufacturing order cancelled.'), context=context)
             proc_obj.write(cr, uid, procs, {'state': 'exception'}, context=context)
         return True
 
diff --git a/doc/cla/individual/igallart.md b/doc/cla/individual/igallart.md
new file mode 100644
index 00000000000..3bf5a8f735c
--- /dev/null
+++ b/doc/cla/individual/igallart.md
@@ -0,0 +1,11 @@
+Spain, 2017-02-27
+
+I hereby agree to the terms of the Odoo Individual Contributor License
+Agreement v1.0.
+
+I declare that I am authorized and able to make this agreement and sign this
+declaration.
+
+Signed,
+
+Isaac Gallart Bochons igallart@puntsistemes.es https://github.com/igallart
diff --git a/openerp/addons/base/ir/ir_cron.py b/openerp/addons/base/ir/ir_cron.py
index c4fb701f0c7..fde751ba491 100644
--- a/openerp/addons/base/ir/ir_cron.py
+++ b/openerp/addons/base/ir/ir_cron.py
@@ -188,20 +188,20 @@ class ir_cron(osv.osv):
         """
         db = openerp.sql_db.db_connect(db_name)
         threading.current_thread().dbname = db_name
-        cr = db.cursor()
         jobs = []
         try:
-            # Make sure the database we poll has the same version as the code of base
-            cr.execute("SELECT 1 FROM ir_module_module WHERE name=%s AND latest_version=%s", ('base', BASE_VERSION))
-            if cr.fetchone():
-                # Careful to compare timestamps with 'UTC' - everything is UTC as of v6.1.
-                cr.execute("""SELECT * FROM ir_cron
-                              WHERE numbercall != 0
-                                  AND active AND nextcall <= (now() at time zone 'UTC')
-                              ORDER BY priority""")
-                jobs = cr.dictfetchall()
-            else:
-                _logger.warning('Skipping database %s as its base version is not %s.', db_name, BASE_VERSION)
+            with db.cursor() as cr:
+                # Make sure the database we poll has the same version as the code of base
+                cr.execute("SELECT 1 FROM ir_module_module WHERE name=%s AND latest_version=%s", ('base', BASE_VERSION))
+                if cr.fetchone():
+                    # Careful to compare timestamps with 'UTC' - everything is UTC as of v6.1.
+                    cr.execute("""SELECT * FROM ir_cron
+                                  WHERE numbercall != 0
+                                      AND active AND nextcall <= (now() at time zone 'UTC')
+                                  ORDER BY priority""")
+                    jobs = cr.dictfetchall()
+                else:
+                    _logger.warning('Skipping database %s as its base version is not %s.', db_name, BASE_VERSION)
         except psycopg2.ProgrammingError, e:
             if e.pgcode == '42P01':
                 # Class 42 — Syntax Error or Access Rule Violation; 42P01: undefined_table
@@ -211,8 +211,6 @@ class ir_cron(osv.osv):
                 raise
         except Exception:
             _logger.warning('Exception in cron:', exc_info=True)
-        finally:
-            cr.close()
 
         for job in jobs:
             lock_cr = db.cursor()
diff --git a/openerp/service/server.py b/openerp/service/server.py
index ead7aab9935..9223d7b157e 100644
--- a/openerp/service/server.py
+++ b/openerp/service/server.py
@@ -217,8 +217,12 @@ class ThreadedServer(CommonServer):
             _logger.debug('cron%d polling for jobs', number)
             for db_name, registry in registries.iteritems():
                 while registry.ready:
-                    acquired = openerp.addons.base.ir.ir_cron.ir_cron._acquire_job(db_name)
-                    if not acquired:
+                    try:
+                        acquired = openerp.addons.base.ir.ir_cron.ir_cron._acquire_job(db_name)
+                        if not acquired:
+                            break
+                    except Exception:
+                        _logger.warning('cron%d encountered an Exception:', number, exc_info=True)
                         break
 
     def cron_spawn(self):