ASSEMBLY_EXCEPTION

Tue, 30 Sep 2014 09:44:36 +0200

author
tschatzl
date
Tue, 30 Sep 2014 09:44:36 +0200
changeset 7218
6948da6d7c13
parent 1907
c18cbe5936b8
child 6876
710a3c8b516e
child 8636
f973811078b9
permissions
-rw-r--r--

8052172: Evacuation failure handling in G1 does not evacuate all objects if -XX:-G1DeferredRSUpdate is set
Summary: Remove -XX:-G1DeferredRSUpdate functionality as it is racy. During evacuation failure handling, threads where evacuation failure handling occurred may try to add remembered sets to regions which remembered sets are currently being scanned. The iterator to handle the remembered set scan does not support addition of entries during scan and so may skip valid references.
Reviewed-by: iveresov, brutisso, mgerdin

duke@435 1
duke@435 2 OPENJDK ASSEMBLY EXCEPTION
duke@435 3
trims@1907 4 The OpenJDK source code made available by Oracle at openjdk.java.net and
duke@435 5 openjdk.dev.java.net ("OpenJDK Code") is distributed under the terms of the
duke@435 6 GNU General Public License <http://www.gnu.org/copyleft/gpl.html> version 2
duke@435 7 only ("GPL2"), with the following clarification and special exception.
duke@435 8
duke@435 9 Linking this OpenJDK Code statically or dynamically with other code
duke@435 10 is making a combined work based on this library. Thus, the terms
duke@435 11 and conditions of GPL2 cover the whole combination.
duke@435 12
trims@1907 13 As a special exception, Oracle gives you permission to link this
trims@1907 14 OpenJDK Code with certain code licensed by Oracle as indicated at
duke@435 15 http://openjdk.java.net/legal/exception-modules-2007-05-08.html
duke@435 16 ("Designated Exception Modules") to produce an executable,
duke@435 17 regardless of the license terms of the Designated Exception Modules,
duke@435 18 and to copy and distribute the resulting executable under GPL2,
duke@435 19 provided that the Designated Exception Modules continue to be
trims@1907 20 governed by the licenses under which they were offered by Oracle.
duke@435 21
trims@1907 22 As such, it allows licensees and sublicensees of Oracle's GPL2 OpenJDK Code to
trims@1907 23 build an executable that includes those portions of necessary code that Oracle
trims@1907 24 could not provide under GPL2 (or that Oracle has provided under GPL2 with the
duke@435 25 Classpath exception). If you modify or add to the OpenJDK code, that new
duke@435 26 GPL2 code may still be combined with Designated Exception Modules if the
duke@435 27 new code is made subject to this exception by its copyright holder.

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