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-rw-r--r--synapse/__init__.py6
-rw-r--r--synapse/handlers/room_member.py2
-rw-r--r--synapse/storage/_base.py7
3 files changed, 11 insertions, 4 deletions
diff --git a/synapse/__init__.py b/synapse/__init__.py
index 2d52d26af5..1055f54e00 100644
--- a/synapse/__init__.py
+++ b/synapse/__init__.py
@@ -17,8 +17,11 @@
 """ This is a reference implementation of a Matrix home server.
 """
 
+import os
 import sys
 
+from tests.patch_inline_callbacks import do_patch
+
 # Check that we're not running on an unsupported Python version.
 if sys.version_info < (3, 5):
     print("Synapse requires Python 3.5 or above.")
@@ -36,3 +39,6 @@ except ImportError:
     pass
 
 __version__ = "1.4.0"
+
+if bool(os.environ.get("SYNAPSE_TEST_PATCH_LOG_CONTEXTS", False)):
+    do_patch()
diff --git a/synapse/handlers/room_member.py b/synapse/handlers/room_member.py
index 95a244d86c..1edc657f8a 100644
--- a/synapse/handlers/room_member.py
+++ b/synapse/handlers/room_member.py
@@ -213,7 +213,7 @@ class RoomMemberHandler(object):
 
             if predecessor:
                 # It is an upgraded room. Copy over old tags
-                self.copy_room_tags_and_direct_to_room(
+                yield self.copy_room_tags_and_direct_to_room(
                     predecessor["room_id"], room_id, user_id
                 )
                 # Copy over push rules
diff --git a/synapse/storage/_base.py b/synapse/storage/_base.py
index abe16334ec..06cc14fcd1 100644
--- a/synapse/storage/_base.py
+++ b/synapse/storage/_base.py
@@ -30,7 +30,7 @@ from prometheus_client import Histogram
 from twisted.internet import defer
 
 from synapse.api.errors import StoreError
-from synapse.logging.context import LoggingContext, PreserveLoggingContext
+from synapse.logging.context import LoggingContext, make_deferred_yieldable
 from synapse.metrics.background_process_metrics import run_as_background_process
 from synapse.storage.engines import PostgresEngine, Sqlite3Engine
 from synapse.types import get_domain_from_id
@@ -550,8 +550,9 @@ class SQLBaseStore(object):
 
                 return func(conn, *args, **kwargs)
 
-        with PreserveLoggingContext():
-            result = yield self._db_pool.runWithConnection(inner_func, *args, **kwargs)
+        result = yield make_deferred_yieldable(
+            self._db_pool.runWithConnection(inner_func, *args, **kwargs)
+        )
 
         return result