Mercurial > hg > graal-jvmci-8
comparison src/share/vm/compiler/compileBroker.cpp @ 2187:986b2844f7a2
6789220: CMS: intermittent timeout running nsk/regression/b4796926
Summary: The reference handler java thread and the GC could dead lock
Reviewed-by: never, johnc, jcoomes
author | brutisso |
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date | Tue, 01 Feb 2011 14:05:46 +0100 |
parents | 3582bf76420e |
children | 0cd39a385a72 850b2295a494 |
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2186:e49cfa28f585 | 2187:986b2844f7a2 |
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1 /* | 1 /* |
2 * Copyright (c) 1999, 2010, Oracle and/or its affiliates. All rights reserved. | 2 * Copyright (c) 1999, 2011, Oracle and/or its affiliates. All rights reserved. |
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. | 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
4 * | 4 * |
5 * This code is free software; you can redistribute it and/or modify it | 5 * This code is free software; you can redistribute it and/or modify it |
6 * under the terms of the GNU General Public License version 2 only, as | 6 * under the terms of the GNU General Public License version 2 only, as |
7 * published by the Free Software Foundation. | 7 * published by the Free Software Foundation. |
1208 // CompileBroker::is_compile_blocking | 1208 // CompileBroker::is_compile_blocking |
1209 // | 1209 // |
1210 // Should the current thread be blocked until this compilation request | 1210 // Should the current thread be blocked until this compilation request |
1211 // has been fulfilled? | 1211 // has been fulfilled? |
1212 bool CompileBroker::is_compile_blocking(methodHandle method, int osr_bci) { | 1212 bool CompileBroker::is_compile_blocking(methodHandle method, int osr_bci) { |
1213 return !BackgroundCompilation; | 1213 if (!BackgroundCompilation) { |
1214 Symbol* class_name = method->method_holder()->klass_part()->name(); | |
1215 if (class_name->starts_with("java/lang/ref/Reference", 23)) { | |
1216 // The reference handler thread can dead lock with the GC if compilation is blocking, | |
1217 // so we avoid blocking compiles for anything in the java.lang.ref.Reference class, | |
1218 // including inner classes such as ReferenceHandler. | |
1219 return false; | |
1220 } | |
1221 return true; | |
1222 } | |
1223 return false; | |
1214 } | 1224 } |
1215 | 1225 |
1216 | 1226 |
1217 // ------------------------------------------------------------------ | 1227 // ------------------------------------------------------------------ |
1218 // CompileBroker::preload_classes | 1228 // CompileBroker::preload_classes |