From e038b56530804a3e59cc8832db64e021b4b33d25 Mon Sep 17 00:00:00 2001
From: Dan Gudmundsson <dgud@erlang.org>
Date: Mon, 18 Dec 2017 15:30:39 +0100
Subject: mnesia: Fix checkpoint crash

Bad timing can cause retain messages to go to a new process if
checkpoint name is reused directly and the checkpoints contain
different tables.

Ignore those messages instead of crash.
---
 lib/mnesia/src/mnesia_checkpoint.erl | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

(limited to 'lib')

diff --git a/lib/mnesia/src/mnesia_checkpoint.erl b/lib/mnesia/src/mnesia_checkpoint.erl
index 2ff77326a9..8112378ffd 100644
--- a/lib/mnesia/src/mnesia_checkpoint.erl
+++ b/lib/mnesia/src/mnesia_checkpoint.erl
@@ -857,9 +857,9 @@ retainer_loop(Cp = #checkpoint_args{is_activated=false, name=Name}) ->
 retainer_loop(Cp = #checkpoint_args{name=Name}) ->
     receive
 	{_From, {retain, Tid, Tab, Key, OldRecs}} ->
-	    R = val({Tab, {retainer, Name}}),
+	    R = ?catch_val({Tab, {retainer, Name}}),
 	    PendingTab = Cp#checkpoint_args.pending_tab,
-	    case R#retainer.really_retain of
+            case is_record(R, retainer) andalso R#retainer.really_retain of
 		true ->
 		    Store = R#retainer.store,
 		    try true = ets:member(PendingTab, Tid),
-- 
cgit v1.2.3


From 848cf56ef8a5ccc1807bda67d29edaa0743089fb Mon Sep 17 00:00:00 2001
From: Erlang/OTP <otp@erlang.org>
Date: Mon, 18 Dec 2017 15:36:39 +0100
Subject: Prepare release

---
 lib/mnesia/doc/src/notes.xml | 28 +++++++++++++++++++++++++++-
 lib/mnesia/vsn.mk            |  2 +-
 2 files changed, 28 insertions(+), 2 deletions(-)

(limited to 'lib')

diff --git a/lib/mnesia/doc/src/notes.xml b/lib/mnesia/doc/src/notes.xml
index ebab612b58..ba94e913f5 100644
--- a/lib/mnesia/doc/src/notes.xml
+++ b/lib/mnesia/doc/src/notes.xml
@@ -39,7 +39,33 @@
     thus constitutes one section in this document. The title of each
     section is the version number of Mnesia.</p>
 
-  <section><title>Mnesia 4.15.2</title>
+  <section><title>Mnesia 4.15.3</title>
+
+    <section><title>Fixed Bugs and Malfunctions</title>
+      <list>
+        <item>
+          <p>
+	    Removed a quadratic behavior in startup. This change
+	    implies that backend plugins (if used) must be set when
+	    the schema is created or via configuration parameters
+	    before mnesia is started.</p>
+          <p>
+	    Own Id: OTP-14829 Aux Id: ERIERL-84 </p>
+        </item>
+        <item>
+          <p>
+	    Bad timing could crash mnesia after a checkpoint was
+	    deactivated and reactivated with the same checkpoint name
+	    on different tables.</p>
+          <p>
+	    Own Id: OTP-14841 Aux Id: ERIERL-113 </p>
+        </item>
+      </list>
+    </section>
+
+</section>
+
+<section><title>Mnesia 4.15.2</title>
 
     <section><title>Fixed Bugs and Malfunctions</title>
       <list>
diff --git a/lib/mnesia/vsn.mk b/lib/mnesia/vsn.mk
index 67afbdc0de..45f811846d 100644
--- a/lib/mnesia/vsn.mk
+++ b/lib/mnesia/vsn.mk
@@ -1 +1 @@
-MNESIA_VSN = 4.15.2
+MNESIA_VSN = 4.15.3
-- 
cgit v1.2.3