Mercurial > hg > graal-jvmci-8
annotate src/os/linux/vm/osThread_linux.hpp @ 12176:88c255656030
8016155: SIGBUS when running Kitchensink with ParallelScavenge and ParallelOld
Summary: When using NUMA and large pages we need to ease the requirement on which node the memory should be allocated on. To avoid the SIGBUS we now use the memory policy MPOL_PREFERRED, which prefers a certain node, instead of MPOL_BIND, which requires a certain node.
Reviewed-by: jmasa, pliden
Contributed-by: stefan.johansson@oracle.com
| author | mgerdin |
|---|---|
| date | Thu, 22 Aug 2013 10:50:41 +0200 |
| parents | f2110083203d |
| children |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 10405 | 2 * Copyright (c) 1999, 2013, Oracle and/or its affiliates. All rights reserved. |
| 0 | 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| 4 * | |
| 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 | |
| 7 * published by the Free Software Foundation. | |
| 8 * | |
| 9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
| 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 12 * version 2 for more details (a copy is included in the LICENSE file that | |
| 13 * accompanied this code). | |
| 14 * | |
| 15 * You should have received a copy of the GNU General Public License version | |
| 16 * 2 along with this work; if not, write to the Free Software Foundation, | |
| 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
| 18 * | |
|
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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 | |
| 1972 | 25 #ifndef OS_LINUX_VM_OSTHREAD_LINUX_HPP |
| 26 #define OS_LINUX_VM_OSTHREAD_LINUX_HPP | |
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27 public: |
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28 typedef pid_t thread_id_t; |
| 1972 | 29 |
| 0 | 30 private: |
| 31 int _thread_type; | |
| 32 | |
| 33 public: | |
| 34 | |
| 35 int thread_type() const { | |
| 36 return _thread_type; | |
| 37 } | |
| 38 void set_thread_type(int type) { | |
| 39 _thread_type = type; | |
| 40 } | |
| 41 | |
| 42 // _pthread_id is the pthread id, which is used by library calls | |
| 43 // (e.g. pthread_kill). | |
| 44 pthread_t _pthread_id; | |
| 45 | |
| 46 sigset_t _caller_sigmask; // Caller's signal mask | |
| 47 | |
| 48 public: | |
| 49 | |
| 50 // Methods to save/restore caller's signal mask | |
| 51 sigset_t caller_sigmask() const { return _caller_sigmask; } | |
| 52 void set_caller_sigmask(sigset_t sigmask) { _caller_sigmask = sigmask; } | |
| 53 | |
| 54 #ifndef PRODUCT | |
| 55 // Used for debugging, return a unique integer for each thread. | |
| 56 int thread_identifier() const { return _thread_id; } | |
| 57 #endif | |
| 58 #ifdef ASSERT | |
| 59 // We expect no reposition failures so kill vm if we get one. | |
| 60 // | |
| 61 bool valid_reposition_failure() { | |
| 62 return false; | |
| 63 } | |
| 64 #endif // ASSERT | |
| 65 pthread_t pthread_id() const { | |
| 66 return _pthread_id; | |
| 67 } | |
| 68 void set_pthread_id(pthread_t tid) { | |
| 69 _pthread_id = tid; | |
| 70 } | |
| 71 | |
| 72 // *************************************************************** | |
| 73 // suspension support. | |
| 74 // *************************************************************** | |
| 75 | |
| 76 public: | |
| 77 // flags that support signal based suspend/resume on Linux are in a | |
| 78 // separate class to avoid confusion with many flags in OSThread that | |
| 79 // are used by VM level suspend/resume. | |
| 10405 | 80 os::SuspendResume sr; |
| 0 | 81 |
| 82 // _ucontext and _siginfo are used by SR_handler() to save thread context, | |
| 83 // and they will later be used to walk the stack or reposition thread PC. | |
| 84 // If the thread is not suspended in SR_handler() (e.g. self suspend), | |
| 85 // the value in _ucontext is meaningless, so we must use the last Java | |
| 86 // frame information as the frame. This will mean that for threads | |
| 87 // that are parked on a mutex the profiler (and safepoint mechanism) | |
| 88 // will see the thread as if it were still in the Java frame. This | |
| 89 // not a problem for the profiler since the Java frame is a close | |
| 90 // enough result. For the safepoint mechanism when the give it the | |
| 91 // Java frame we are not at a point where the safepoint needs the | |
| 92 // frame to that accurate (like for a compiled safepoint) since we | |
| 93 // should be in a place where we are native and will block ourselves | |
| 94 // if we transition. | |
| 95 private: | |
| 96 void* _siginfo; | |
| 97 ucontext_t* _ucontext; | |
| 98 int _expanding_stack; /* non zero if manually expanding stack */ | |
| 99 address _alt_sig_stack; /* address of base of alternate signal stack */ | |
| 100 | |
| 101 public: | |
| 102 void* siginfo() const { return _siginfo; } | |
| 103 void set_siginfo(void* ptr) { _siginfo = ptr; } | |
| 104 ucontext_t* ucontext() const { return _ucontext; } | |
| 105 void set_ucontext(ucontext_t* ptr) { _ucontext = ptr; } | |
| 106 void set_expanding_stack(void) { _expanding_stack = 1; } | |
| 107 void clear_expanding_stack(void) { _expanding_stack = 0; } | |
| 108 int expanding_stack(void) { return _expanding_stack; } | |
| 109 | |
| 110 void set_alt_sig_stack(address val) { _alt_sig_stack = val; } | |
| 111 address alt_sig_stack(void) { return _alt_sig_stack; } | |
| 112 | |
| 113 private: | |
| 114 Monitor* _startThread_lock; // sync parent and child in thread creation | |
| 115 | |
| 116 public: | |
| 117 | |
| 118 Monitor* startThread_lock() const { | |
| 119 return _startThread_lock; | |
| 120 } | |
| 121 | |
| 122 // *************************************************************** | |
| 123 // Platform dependent initialization and cleanup | |
| 124 // *************************************************************** | |
| 125 | |
| 126 private: | |
| 127 | |
| 128 void pd_initialize(); | |
| 129 void pd_destroy(); | |
| 130 | |
| 131 // Reconciliation History | |
| 132 // osThread_solaris.hpp 1.24 99/08/27 13:11:54 | |
| 133 // End | |
| 1972 | 134 |
| 135 #endif // OS_LINUX_VM_OSTHREAD_LINUX_HPP |