Mercurial > hg > graal-compiler
annotate src/cpu/x86/vm/vmStructs_x86.hpp @ 1842:6e0aac35bfa9
6980838: G1: guarantee(false) failed: thread has an unexpected active value in its SATB queue
Summary: Under certain circumstances a safepoint could happen between a JavaThread object being created and that object being added to the Java threads list. This could cause the active field of that thread's SATB queue to get out-of-sync with respect to the other Java threads. The solution is to activate the SATB queue, when necessary, before adding the thread to the Java threads list, not when the JavaThread object is created. The changeset also includes a small fix to rename the surrogate locker thread from "Surrogate Locker Thread (CMS)" to "Surrogate Locker Thread (Concurrent GC)" since it's also used in G1.
Reviewed-by: iveresov, ysr, johnc, jcoomes
| author | tonyp |
|---|---|
| date | Fri, 01 Oct 2010 16:43:05 -0400 |
| parents | c18cbe5936b8 |
| children | f95d63e2154a |
| rev | line source |
|---|---|
| 0 | 1 /* |
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
| 0 | 22 * |
| 23 */ | |
| 24 | |
| 25 // These are the CPU-specific fields, types and integer | |
| 26 // constants required by the Serviceability Agent. This file is | |
| 27 // referenced by vmStructs.cpp. | |
| 28 | |
| 29 #define VM_STRUCTS_CPU(nonstatic_field, static_field, unchecked_nonstatic_field, volatile_nonstatic_field, nonproduct_nonstatic_field, c2_nonstatic_field, unchecked_c1_static_field, unchecked_c2_static_field, last_entry) \ | |
| 30 \ | |
| 31 /******************************/ \ | |
| 32 /* JavaCallWrapper */ \ | |
| 33 /******************************/ \ | |
| 34 /******************************/ \ | |
| 35 /* JavaFrameAnchor */ \ | |
| 36 /******************************/ \ | |
| 37 volatile_nonstatic_field(JavaFrameAnchor, _last_Java_fp, intptr_t*) \ | |
| 38 \ | |
| 39 | |
| 40 /* NOTE that we do not use the last_entry() macro here; it is used */ | |
| 41 /* in vmStructs_<os>_<cpu>.hpp's VM_STRUCTS_OS_CPU macro (and must */ | |
| 42 /* be present there) */ | |
| 43 | |
| 44 | |
| 45 #define VM_TYPES_CPU(declare_type, declare_toplevel_type, declare_oop_type, declare_integer_type, declare_unsigned_integer_type, declare_c1_toplevel_type, declare_c2_type, declare_c2_toplevel_type, last_entry) \ | |
| 46 | |
| 47 /* NOTE that we do not use the last_entry() macro here; it is used */ | |
| 48 /* in vmStructs_<os>_<cpu>.hpp's VM_TYPES_OS_CPU macro (and must */ | |
| 49 /* be present there) */ | |
| 50 | |
| 51 | |
| 52 #define VM_INT_CONSTANTS_CPU(declare_constant, declare_preprocessor_constant, declare_c1_constant, declare_c2_constant, declare_c2_preprocessor_constant, last_entry) \ | |
| 53 | |
| 54 /* NOTE that we do not use the last_entry() macro here; it is used */ | |
| 55 /* in vmStructs_<os>_<cpu>.hpp's VM_INT_CONSTANTS_OS_CPU macro (and must */ | |
| 56 /* be present there) */ | |
| 57 | |
| 58 #define VM_LONG_CONSTANTS_CPU(declare_constant, declare_preprocessor_constant, declare_c1_constant, declare_c2_constant, declare_c2_preprocessor_constant, last_entry) \ | |
| 59 | |
| 60 /* NOTE that we do not use the last_entry() macro here; it is used */ | |
| 61 /* in vmStructs_<os>_<cpu>.hpp's VM_LONG_CONSTANTS_OS_CPU macro (and must */ | |
| 62 /* be present there) */ |