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-rw-r--r--erts/doc/src/notes.xml32
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diff --git a/erts/doc/src/notes.xml b/erts/doc/src/notes.xml
index 008d43b51a..367d6d4d0a 100644
--- a/erts/doc/src/notes.xml
+++ b/erts/doc/src/notes.xml
@@ -31,6 +31,38 @@
</header>
<p>This document describes the changes made to the ERTS application.</p>
+<section><title>Erts 9.0.4</title>
+
+ <section><title>Fixed Bugs and Malfunctions</title>
+ <list>
+ <item>
+ <p>
+ A timer internal bit-field used for storing scheduler id
+ was too small. As a result, VM internal timer data
+ structures could become inconsistent when using 1024
+ schedulers on the system. Note that systems with less
+ than 1024 schedulers are not effected by this bug.</p>
+ <p>
+ This bug was introduced in ERTS version 7.0 (OTP 18.0).</p>
+ <p>
+ Own Id: OTP-14548 Aux Id: OTP-11997, ERL-468 </p>
+ </item>
+ <item>
+ <p>
+ Automatic cleanup of a BIF timer, when the owner process
+ terminated, could race with the timeout of the timer.
+ This could cause the VM internal data structures to
+ become inconsistent which very likely caused a VM crash.</p>
+ <p>
+ This bug was introduced in ERTS version 9.0 (OTP 20.0).</p>
+ <p>
+ Own Id: OTP-14554 Aux Id: OTP-14356, ERL-468 </p>
+ </item>
+ </list>
+ </section>
+
+</section>
+
<section><title>Erts 9.0.3</title>
<section><title>Fixed Bugs and Malfunctions</title>