Mercurial > hg > truffle
view src/share/vm/utilities/vmError.hpp @ 1994:6cd6d394f280
7001033: assert(gch->gc_cause() == GCCause::_scavenge_alot || !gch->incremental_collection_failed())
7002546: regression on SpecJbb2005 on 7b118 comparing to 7b117 on small heaps
Summary: Relaxed assertion checking related to incremental_collection_failed flag to allow for ExplicitGCInvokesConcurrent behaviour where we do not want a failing scavenge to bail to a stop-world collection. Parameterized incremental_collection_will_fail() so we can selectively use, or not use, as appropriate, the statistical prediction at specific use sites. This essentially reverts the scavenge bail-out logic to what it was prior to some recent changes that had inadvertently started using the statistical prediction which can be noisy in the presence of bursty loads. Added some associated verbose non-product debugging messages.
Reviewed-by: johnc, tonyp
author | ysr |
---|---|
date | Tue, 07 Dec 2010 21:55:53 -0800 |
parents | f95d63e2154a |
children | 36c186bcc085 |
line wrap: on
line source
/* * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation. * * This code is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. * */ #ifndef SHARE_VM_UTILITIES_VMERROR_HPP #define SHARE_VM_UTILITIES_VMERROR_HPP #include "utilities/globalDefinitions.hpp" class VM_ReportJavaOutOfMemory; class VMError : public StackObj { friend class VM_ReportJavaOutOfMemory; enum ErrorType { internal_error = 0xe0000000, oom_error = 0xe0000001 }; int _id; // Solaris/Linux signals: 0 - SIGRTMAX // Windows exceptions: 0xCxxxxxxx system errors // 0x8xxxxxxx system warnings const char * _message; const char * _detail_msg; Thread * _thread; // NULL if it's native thread // additional info for crashes address _pc; // faulting PC void * _siginfo; // ExceptionRecord on Windows, // siginfo_t on Solaris/Linux void * _context; // ContextRecord on Windows, // ucontext_t on Solaris/Linux // additional info for VM internal errors const char * _filename; int _lineno; // used by fatal error handler int _current_step; const char * _current_step_info; int _verbose; // First error, and its thread id. We must be able to handle native thread, // so use thread id instead of Thread* to identify thread. static VMError* volatile first_error; static volatile jlong first_error_tid; // used by reporting about OOM size_t _size; // set signal handlers on Solaris/Linux or the default exception filter // on Windows, to handle recursive crashes. void reset_signal_handlers(); // handle -XX:+ShowMessageBoxOnError. buf is used to format the message string void show_message_box(char* buf, int buflen); // generate an error report void report(outputStream* st); // generate a stack trace static void print_stack_trace(outputStream* st, JavaThread* jt, char* buf, int buflen, bool verbose = false); // accessor const char* message() const { return _message; } const char* detail_msg() const { return _detail_msg; } public: // Constructor for crashes VMError(Thread* thread, int sig, address pc, void* siginfo, void* context); // Constructor for VM internal errors VMError(Thread* thread, const char* filename, int lineno, const char* message, const char * detail_msg); // Constructor for VM OOM errors VMError(Thread* thread, const char* filename, int lineno, size_t size, const char* message); // Constructor for non-fatal errors VMError(const char* message); // return a string to describe the error char *error_string(char* buf, int buflen); // main error reporting function void report_and_die(); // reporting OutOfMemoryError void report_java_out_of_memory(); // returns original flags for signal, if it was resetted, or -1 if // signal was not changed by error reporter static int get_resetted_sigflags(int sig); // returns original handler for signal, if it was resetted, or NULL if // signal was not changed by error reporter static address get_resetted_sighandler(int sig); // check to see if fatal error reporting is in progress static bool fatal_error_in_progress() { return first_error != NULL; } }; #endif // SHARE_VM_UTILITIES_VMERROR_HPP