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android / toolchain / jdk / jdk9_hotspot / 6fc3f1042586aa5d16bd91cf3a7cbfdf94ef7ebe / . / src / share / vm / utilities / vmError.cpp
blob: a8bad01d65063103b6774cd8eb9c0fab35fce2e0 [file] [log] [blame]
/*
* Copyright (c) 2003, 2016, 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.
*
*/
#include <fcntl.h>
#include "precompiled.hpp"
#include "code/codeCache.hpp"
#include "compiler/compileBroker.hpp"
#include "compiler/disassembler.hpp"
#include "gc/shared/collectedHeap.hpp"
#include "logging/logConfiguration.hpp"
#include "prims/whitebox.hpp"
#include "runtime/arguments.hpp"
#include "runtime/atomic.hpp"
#include "runtime/frame.inline.hpp"
#include "runtime/init.hpp"
#include "runtime/os.hpp"
#include "runtime/thread.inline.hpp"
#include "runtime/vmThread.hpp"
#include "runtime/vm_operations.hpp"
#include "services/memTracker.hpp"
#include "trace/traceMacros.hpp"
#include "utilities/debug.hpp"
#include "utilities/decoder.hpp"
#include "utilities/defaultStream.hpp"
#include "utilities/errorReporter.hpp"
#include "utilities/events.hpp"
#include "utilities/vmError.hpp"
// List of environment variables that should be reported in error log file.
const char *env_list[] = {
// All platforms
"JAVA_HOME", "JRE_HOME", "JAVA_TOOL_OPTIONS", "_JAVA_OPTIONS", "CLASSPATH",
"JAVA_COMPILER", "PATH", "USERNAME",
// Env variables that are defined on Solaris/Linux/BSD
"LD_LIBRARY_PATH", "LD_PRELOAD", "SHELL", "DISPLAY",
"HOSTTYPE", "OSTYPE", "ARCH", "MACHTYPE",
// defined on Linux
"LD_ASSUME_KERNEL", "_JAVA_SR_SIGNUM",
// defined on Darwin
"DYLD_LIBRARY_PATH", "DYLD_FALLBACK_LIBRARY_PATH",
"DYLD_FRAMEWORK_PATH", "DYLD_FALLBACK_FRAMEWORK_PATH",
"DYLD_INSERT_LIBRARIES",
// defined on Windows
"OS", "PROCESSOR_IDENTIFIER", "_ALT_JAVA_HOME_DIR",
(const char *)0
};
// A simple parser for -XX:OnError, usage:
// ptr = OnError;
// while ((cmd = next_OnError_command(buffer, sizeof(buffer), &ptr) != NULL)
// ... ...
static char* next_OnError_command(char* buf, int buflen, const char** ptr) {
if (ptr == NULL || *ptr == NULL) return NULL;
const char* cmd = *ptr;
// skip leading blanks or ';'
while (*cmd == ' ' || *cmd == ';') cmd++;
if (*cmd == '\0') return NULL;
const char * cmdend = cmd;
while (*cmdend != '\0' && *cmdend != ';') cmdend++;
Arguments::copy_expand_pid(cmd, cmdend - cmd, buf, buflen);
*ptr = (*cmdend == '\0' ? cmdend : cmdend + 1);
return buf;
}
static void print_bug_submit_message(outputStream *out, Thread *thread) {
if (out == NULL) return;
out->print_raw_cr("# If you would like to submit a bug report, please visit:");
out->print_raw ("# ");
out->print_raw_cr(Arguments::java_vendor_url_bug());
// If the crash is in native code, encourage user to submit a bug to the
// provider of that code.
if (thread && thread->is_Java_thread() &&
!thread->is_hidden_from_external_view()) {
JavaThread* jt = (JavaThread*)thread;
if (jt->thread_state() == _thread_in_native) {
out->print_cr("# The crash happened outside the Java Virtual Machine in native code.\n# See problematic frame for where to report the bug.");
}
}
out->print_raw_cr("#");
}
bool VMError::coredump_status;
char VMError::coredump_message[O_BUFLEN];
void VMError::record_coredump_status(const char* message, bool status) {
coredump_status = status;
strncpy(coredump_message, message, sizeof(coredump_message));
coredump_message[sizeof(coredump_message)-1] = 0;
}
// Return a string to describe the error
char* VMError::error_string(char* buf, int buflen) {
char signame_buf[64];
const char *signame = os::exception_name(_id, signame_buf, sizeof(signame_buf));
if (signame) {
jio_snprintf(buf, buflen,
"%s (0x%x) at pc=" PTR_FORMAT ", pid=%d, tid=" UINTX_FORMAT,
signame, _id, _pc,
os::current_process_id(), os::current_thread_id());
} else if (_filename != NULL && _lineno > 0) {
// skip directory names
char separator = os::file_separator()[0];
const char *p = strrchr(_filename, separator);
int n = jio_snprintf(buf, buflen,
"Internal Error at %s:%d, pid=%d, tid=" UINTX_FORMAT,
p ? p + 1 : _filename, _lineno,
os::current_process_id(), os::current_thread_id());
if (n >= 0 && n < buflen && _message) {
if (strlen(_detail_msg) > 0) {
jio_snprintf(buf + n, buflen - n, "%s%s: %s",
os::line_separator(), _message, _detail_msg);
} else {
jio_snprintf(buf + n, buflen - n, "%sError: %s",
os::line_separator(), _message);
}
}
} else {
jio_snprintf(buf, buflen,
"Internal Error (0x%x), pid=%d, tid=" UINTX_FORMAT,
_id, os::current_process_id(), os::current_thread_id());
}
return buf;
}
void VMError::print_stack_trace(outputStream* st, JavaThread* jt,
char* buf, int buflen, bool verbose) {
#ifdef ZERO
if (jt->zero_stack()->sp() && jt->top_zero_frame()) {
// StackFrameStream uses the frame anchor, which may not have
// been set up. This can be done at any time in Zero, however,
// so if it hasn't been set up then we just set it up now and
// clear it again when we're done.
bool has_last_Java_frame = jt->has_last_Java_frame();
if (!has_last_Java_frame)
jt->set_last_Java_frame();
st->print("Java frames:");
// If the top frame is a Shark frame and the frame anchor isn't
// set up then it's possible that the information in the frame
// is garbage: it could be from a previous decache, or it could
// simply have never been written. So we print a warning...
StackFrameStream sfs(jt);
if (!has_last_Java_frame && !sfs.is_done()) {
if (sfs.current()->zeroframe()->is_shark_frame()) {
st->print(" (TOP FRAME MAY BE JUNK)");
}
}
st->cr();
// Print the frames
for(int i = 0; !sfs.is_done(); sfs.next(), i++) {
sfs.current()->zero_print_on_error(i, st, buf, buflen);
st->cr();
}
// Reset the frame anchor if necessary
if (!has_last_Java_frame)
jt->reset_last_Java_frame();
}
#else
if (jt->has_last_Java_frame()) {
st->print_cr("Java frames: (J=compiled Java code, j=interpreted, Vv=VM code)");
for(StackFrameStream sfs(jt); !sfs.is_done(); sfs.next()) {
sfs.current()->print_on_error(st, buf, buflen, verbose);
st->cr();
}
}
#endif // ZERO
}
static void print_oom_reasons(outputStream* st) {
st->print_cr("# Possible reasons:");
st->print_cr("# The system is out of physical RAM or swap space");
if (UseCompressedOops) {
st->print_cr("# The process is running with CompressedOops enabled, and the Java Heap may be blocking the growth of the native heap");
}
if (LogBytesPerWord == 2) {
st->print_cr("# In 32 bit mode, the process size limit was hit");
}
st->print_cr("# Possible solutions:");
st->print_cr("# Reduce memory load on the system");
st->print_cr("# Increase physical memory or swap space");
st->print_cr("# Check if swap backing store is full");
if (LogBytesPerWord == 2) {
st->print_cr("# Use 64 bit Java on a 64 bit OS");
}
st->print_cr("# Decrease Java heap size (-Xmx/-Xms)");
st->print_cr("# Decrease number of Java threads");
st->print_cr("# Decrease Java thread stack sizes (-Xss)");
st->print_cr("# Set larger code cache with -XX:ReservedCodeCacheSize=");
if (UseCompressedOops) {
switch (Universe::narrow_oop_mode()) {
case Universe::UnscaledNarrowOop:
st->print_cr("# JVM is running with Unscaled Compressed Oops mode in which the Java heap is");
st->print_cr("# placed in the first 4GB address space. The Java Heap base address is the");
st->print_cr("# maximum limit for the native heap growth. Please use -XX:HeapBaseMinAddress");
st->print_cr("# to set the Java Heap base and to place the Java Heap above 4GB virtual address.");
break;
case Universe::ZeroBasedNarrowOop:
st->print_cr("# JVM is running with Zero Based Compressed Oops mode in which the Java heap is");
st->print_cr("# placed in the first 32GB address space. The Java Heap base address is the");
st->print_cr("# maximum limit for the native heap growth. Please use -XX:HeapBaseMinAddress");
st->print_cr("# to set the Java Heap base and to place the Java Heap above 32GB virtual address.");
break;
}
}
st->print_cr("# This output file may be truncated or incomplete.");
}
static const char* gc_mode() {
if (UseG1GC) return "g1 gc";
if (UseParallelGC) return "parallel gc";
if (UseConcMarkSweepGC) return "concurrent mark sweep gc";
if (UseSerialGC) return "serial gc";
return "ERROR in GC mode";
}
static void report_vm_version(outputStream* st, char* buf, int buflen) {
// VM version
st->print_cr("#");
JDK_Version::current().to_string(buf, buflen);
const char* runtime_name = JDK_Version::runtime_name() != NULL ?
JDK_Version::runtime_name() : "";
const char* runtime_version = JDK_Version::runtime_version() != NULL ?
JDK_Version::runtime_version() : "";
const char* jdk_debug_level = Abstract_VM_Version::printable_jdk_debug_level() != NULL ?
Abstract_VM_Version::printable_jdk_debug_level() : "";
st->print_cr("# JRE version: %s (%s) (%sbuild %s)", runtime_name, buf,
jdk_debug_level, runtime_version);
// This is the long version with some default settings added
st->print_cr("# Java VM: %s (%s%s, %s%s%s%s%s, %s, %s)",
Abstract_VM_Version::vm_name(),
jdk_debug_level,
Abstract_VM_Version::vm_release(),
Abstract_VM_Version::vm_info_string(),
TieredCompilation ? ", tiered" : "",
#if INCLUDE_JVMCI
EnableJVMCI ? ", jvmci" : "",
UseJVMCICompiler ? ", jvmci compiler" : "",
#else
"", "",
#endif
UseCompressedOops ? ", compressed oops" : "",
gc_mode(),
Abstract_VM_Version::vm_platform_string()
);
}
// This is the main function to report a fatal error. Only one thread can
// call this function, so we don't need to worry about MT-safety. But it's
// possible that the error handler itself may crash or die on an internal
// error, for example, when the stack/heap is badly damaged. We must be
// able to handle recursive errors that happen inside error handler.
//
// Error reporting is done in several steps. If a crash or internal error
// occurred when reporting an error, the nested signal/exception handler
// can skip steps that are already (or partially) done. Error reporting will
// continue from the next step. This allows us to retrieve and print
// information that may be unsafe to get after a fatal error. If it happens,
// you may find nested report_and_die() frames when you look at the stack
// in a debugger.
//
// In general, a hang in error handler is much worse than a crash or internal
// error, as it's harder to recover from a hang. Deadlock can happen if we
// try to grab a lock that is already owned by current thread, or if the
// owner is blocked forever (e.g. in os::infinite_sleep()). If possible, the
// error handler and all the functions it called should avoid grabbing any
// lock. An important thing to notice is that memory allocation needs a lock.
//
// We should avoid using large stack allocated buffers. Many errors happen
// when stack space is already low. Making things even worse is that there
// could be nested report_and_die() calls on stack (see above). Only one
// thread can report error, so large buffers are statically allocated in data
// segment.
int VMError::_current_step;
const char* VMError::_current_step_info;
void VMError::report(outputStream* st, bool _verbose) {
# define BEGIN if (_current_step == 0) { _current_step = __LINE__;
# define STEP(s) } if (_current_step < __LINE__) { _current_step = __LINE__; _current_step_info = s;
# define END }
// don't allocate large buffer on stack
static char buf[O_BUFLEN];
BEGIN
STEP("printing fatal error message")
st->print_cr("#");
if (should_report_bug(_id)) {
st->print_cr("# A fatal error has been detected by the Java Runtime Environment:");
} else {
st->print_cr("# There is insufficient memory for the Java "
"Runtime Environment to continue.");
}
#ifndef PRODUCT
// Error handler self tests
// test secondary error handling. Test it twice, to test that resetting
// error handler after a secondary crash works.
STEP("test secondary crash 1")
if (_verbose && TestCrashInErrorHandler != 0) {
st->print_cr("Will crash now (TestCrashInErrorHandler=" UINTX_FORMAT ")...",
TestCrashInErrorHandler);
controlled_crash(TestCrashInErrorHandler);
}
STEP("test secondary crash 2")
if (_verbose && TestCrashInErrorHandler != 0) {
st->print_cr("Will crash now (TestCrashInErrorHandler=" UINTX_FORMAT ")...",
TestCrashInErrorHandler);
controlled_crash(TestCrashInErrorHandler);
}
STEP("test safefetch in error handler")
// test whether it is safe to use SafeFetch32 in Crash Handler. Test twice
// to test that resetting the signal handler works correctly.
if (_verbose && TestSafeFetchInErrorHandler) {
st->print_cr("Will test SafeFetch...");
if (CanUseSafeFetch32()) {
int* const invalid_pointer = (int*) get_segfault_address();
const int x = 0x76543210;
int i1 = SafeFetch32(invalid_pointer, x);
int i2 = SafeFetch32(invalid_pointer, x);
if (i1 == x && i2 == x) {
st->print_cr("SafeFetch OK."); // Correctly deflected and returned default pattern
} else {
st->print_cr("??");
}
} else {
st->print_cr("not possible; skipped.");
}
}
#endif // PRODUCT
STEP("printing type of error")
switch(static_cast<unsigned int>(_id)) {
case OOM_MALLOC_ERROR:
case OOM_MMAP_ERROR:
if (_size) {
st->print("# Native memory allocation ");
st->print((_id == (int)OOM_MALLOC_ERROR) ? "(malloc) failed to allocate " :
"(mmap) failed to map ");
jio_snprintf(buf, sizeof(buf), SIZE_FORMAT, _size);
st->print("%s", buf);
st->print(" bytes");
if (strlen(_detail_msg) > 0) {
st->print(" for ");
st->print("%s", _detail_msg);
}
st->cr();
} else {
if (strlen(_detail_msg) > 0) {
st->print("# ");
st->print_cr("%s", _detail_msg);
}
}
// In error file give some solutions
if (_verbose) {
print_oom_reasons(st);
} else {
return; // that's enough for the screen
}
break;
case INTERNAL_ERROR:
default:
break;
}
STEP("printing exception/signal name")
st->print_cr("#");
st->print("# ");
// Is it an OS exception/signal?
if (os::exception_name(_id, buf, sizeof(buf))) {
st->print("%s", buf);
st->print(" (0x%x)", _id); // signal number
st->print(" at pc=" PTR_FORMAT, p2i(_pc));
} else {
if (should_report_bug(_id)) {
st->print("Internal Error");
} else {
st->print("Out of Memory Error");
}
if (_filename != NULL && _lineno > 0) {
#ifdef PRODUCT
// In product mode chop off pathname?
char separator = os::file_separator()[0];
const char *p = strrchr(_filename, separator);
const char *file = p ? p+1 : _filename;
#else
const char *file = _filename;
#endif
st->print(" (%s:%d)", file, _lineno);
} else {
st->print(" (0x%x)", _id);
}
}
STEP("printing current thread and pid")
// process id, thread id
st->print(", pid=%d", os::current_process_id());
st->print(", tid=" UINTX_FORMAT, os::current_thread_id());
st->cr();
STEP("printing error message")
if (should_report_bug(_id)) { // already printed the message.
// error message
if (strlen(_detail_msg) > 0) {
st->print_cr("# %s: %s", _message ? _message : "Error", _detail_msg);
} else if (_message) {
st->print_cr("# Error: %s", _message);
}
}
STEP("printing Java version string")
report_vm_version(st, buf, sizeof(buf));
STEP("printing problematic frame")
// Print current frame if we have a context (i.e. it's a crash)
if (_context) {
st->print_cr("# Problematic frame:");
st->print("# ");
frame fr = os::fetch_frame_from_context(_context);
fr.print_on_error(st, buf, sizeof(buf));
st->cr();
st->print_cr("#");
}
STEP("printing core file information")
st->print("# ");
if (CreateCoredumpOnCrash) {
if (coredump_status) {
st->print("Core dump will be written. Default location: %s", coredump_message);
} else {
st->print("No core dump will be written. %s", coredump_message);
}
} else {
st->print("CreateCoredumpOnCrash turned off, no core file dumped");
}
st->cr();
st->print_cr("#");
STEP("printing bug submit message")
if (should_report_bug(_id) && _verbose) {
print_bug_submit_message(st, _thread);
}
STEP("printing summary")
if (_verbose) {
st->cr();
st->print_cr("--------------- S U M M A R Y ------------");
st->cr();
}
STEP("printing VM option summary")
if (_verbose) {
// VM options
Arguments::print_summary_on(st);
st->cr();
}
STEP("printing summary machine and OS info")
if (_verbose) {
os::print_summary_info(st, buf, sizeof(buf));
}
STEP("printing date and time")
if (_verbose) {
os::print_date_and_time(st, buf, sizeof(buf));
}
STEP("printing thread")
if (_verbose) {
st->cr();
st->print_cr("--------------- T H R E A D ---------------");
st->cr();
}
STEP("printing current thread")
// current thread
if (_verbose) {
if (_thread) {
st->print("Current thread (" PTR_FORMAT "): ", p2i(_thread));
_thread->print_on_error(st, buf, sizeof(buf));
st->cr();
} else {
st->print_cr("Current thread is native thread");
}
st->cr();
}
STEP("printing current compile task")
if (_verbose && _thread && _thread->is_Compiler_thread()) {
CompilerThread* t = (CompilerThread*)_thread;
if (t->task()) {
st->cr();
st->print_cr("Current CompileTask:");
t->task()->print_line_on_error(st, buf, sizeof(buf));
st->cr();
}
}
STEP("printing stack bounds")
if (_verbose) {
st->print("Stack: ");
address stack_top;
size_t stack_size;
if (_thread) {
stack_top = _thread->stack_base();
stack_size = _thread->stack_size();
} else {
stack_top = os::current_stack_base();
stack_size = os::current_stack_size();
}
address stack_bottom = stack_top - stack_size;
st->print("[" PTR_FORMAT "," PTR_FORMAT "]", p2i(stack_bottom), p2i(stack_top));
frame fr = _context ? os::fetch_frame_from_context(_context)
: os::current_frame();
if (fr.sp()) {
st->print(", sp=" PTR_FORMAT, p2i(fr.sp()));
size_t free_stack_size = pointer_delta(fr.sp(), stack_bottom, 1024);
st->print(", free space=" SIZE_FORMAT "k", free_stack_size);
}
st->cr();
}
STEP("printing native stack")
if (_verbose) {
if (os::platform_print_native_stack(st, _context, buf, sizeof(buf))) {
// We have printed the native stack in platform-specific code
// Windows/x64 needs special handling.
} else {
frame fr = _context ? os::fetch_frame_from_context(_context)
: os::current_frame();
print_native_stack(st, fr, _thread, buf, sizeof(buf));
}
}
STEP("printing Java stack")
if (_verbose && _thread && _thread->is_Java_thread()) {
print_stack_trace(st, (JavaThread*)_thread, buf, sizeof(buf));
}
STEP("printing target Java thread stack")
// printing Java thread stack trace if it is involved in GC crash
if (_verbose && _thread && (_thread->is_Named_thread())) {
JavaThread* jt = ((NamedThread *)_thread)->processed_thread();
if (jt != NULL) {
st->print_cr("JavaThread " PTR_FORMAT " (nid = %d) was being processed", p2i(jt), jt->osthread()->thread_id());
print_stack_trace(st, jt, buf, sizeof(buf), true);
}
}
STEP("printing siginfo")
// signal no, signal code, address that caused the fault
if (_verbose && _siginfo) {
st->cr();
os::print_siginfo(st, _siginfo);
st->cr();
}
STEP("CDS archive access warning")
// Print an explicit hint if we crashed on access to the CDS archive.
if (_verbose && _siginfo) {
check_failing_cds_access(st, _siginfo);
st->cr();
}
STEP("printing register info")
// decode register contents if possible
if (_verbose && _context && Universe::is_fully_initialized()) {
os::print_register_info(st, _context);
st->cr();
}
STEP("printing registers, top of stack, instructions near pc")
// registers, top of stack, instructions near pc
if (_verbose && _context) {
os::print_context(st, _context);
st->cr();
}
STEP("printing code blob if possible")
if (_verbose && _context) {
CodeBlob* cb = CodeCache::find_blob(_pc);
if (cb != NULL) {
if (Interpreter::contains(_pc)) {
// The interpreter CodeBlob is very large so try to print the codelet instead.
InterpreterCodelet* codelet = Interpreter::codelet_containing(_pc);
if (codelet != NULL) {
codelet->print_on(st);
Disassembler::decode(codelet->code_begin(), codelet->code_end(), st);
}
} else {
StubCodeDesc* desc = StubCodeDesc::desc_for(_pc);
if (desc != NULL) {
desc->print_on(st);
Disassembler::decode(desc->begin(), desc->end(), st);
} else {
Disassembler::decode(cb, st);
st->cr();
}
}
}
}
STEP("printing VM operation")
if (_verbose && _thread && _thread->is_VM_thread()) {
VMThread* t = (VMThread*)_thread;
VM_Operation* op = t->vm_operation();
if (op) {
op->print_on_error(st);
st->cr();
st->cr();
}
}
STEP("printing process")
if (_verbose) {
st->cr();
st->print_cr("--------------- P R O C E S S ---------------");
st->cr();
}
STEP("printing all threads")
// all threads
if (_verbose && _thread) {
Threads::print_on_error(st, _thread, buf, sizeof(buf));
st->cr();
}
STEP("printing VM state")
if (_verbose) {
// Safepoint state
st->print("VM state:");
if (SafepointSynchronize::is_synchronizing()) st->print("synchronizing");
else if (SafepointSynchronize::is_at_safepoint()) st->print("at safepoint");
else st->print("not at safepoint");
// Also see if error occurred during initialization or shutdown
if (!Universe::is_fully_initialized()) {
st->print(" (not fully initialized)");
} else if (VM_Exit::vm_exited()) {
st->print(" (shutting down)");
} else {
st->print(" (normal execution)");
}
st->cr();
st->cr();
}
STEP("printing owned locks on error")
// mutexes/monitors that currently have an owner
if (_verbose) {
print_owned_locks_on_error(st);
st->cr();
}
STEP("printing number of OutOfMemoryError and StackOverflow exceptions")
if (_verbose && Exceptions::has_exception_counts()) {
st->print_cr("OutOfMemory and StackOverflow Exception counts:");
Exceptions::print_exception_counts_on_error(st);
st->cr();
}
STEP("printing compressed oops mode")
if (_verbose && UseCompressedOops) {
Universe::print_compressed_oops_mode(st);
if (UseCompressedClassPointers) {
Metaspace::print_compressed_class_space(st);
}
st->cr();
}
STEP("printing heap information")
if (_verbose && Universe::is_fully_initialized()) {
Universe::heap()->print_on_error(st);
st->cr();
st->print_cr("Polling page: " INTPTR_FORMAT, p2i(os::get_polling_page()));
st->cr();
}
STEP("printing code cache information")
if (_verbose && Universe::is_fully_initialized()) {
// print code cache information before vm abort
CodeCache::print_summary(st);
st->cr();
}
STEP("printing ring buffers")
if (_verbose) {
Events::print_all(st);
st->cr();
}
STEP("printing dynamic libraries")
if (_verbose) {
// dynamic libraries, or memory map
os::print_dll_info(st);
st->cr();
}
STEP("printing VM options")
if (_verbose) {
// VM options
Arguments::print_on(st);
st->cr();
}
STEP("printing warning if internal testing API used")
if (WhiteBox::used()) {
st->print_cr("Unsupported internal testing APIs have been used.");
st->cr();
}
STEP("printing log configuration")
if (_verbose){
st->print_cr("Logging:");
LogConfiguration::describe_current_configuration(st);
st->cr();
}
STEP("printing all environment variables")
if (_verbose) {
os::print_environment_variables(st, env_list);
st->cr();
}
STEP("printing signal handlers")
if (_verbose) {
os::print_signal_handlers(st, buf, sizeof(buf));
st->cr();
}
STEP("Native Memory Tracking")
if (_verbose) {
MemTracker::error_report(st);
}
STEP("printing system")
if (_verbose) {
st->cr();
st->print_cr("--------------- S Y S T E M ---------------");
st->cr();
}
STEP("printing OS information")
if (_verbose) {
os::print_os_info(st);
st->cr();
}
STEP("printing CPU info")
if (_verbose) {
os::print_cpu_info(st, buf, sizeof(buf));
st->cr();
}
STEP("printing memory info")
if (_verbose) {
os::print_memory_info(st);
st->cr();
}
STEP("printing internal vm info")
if (_verbose) {
st->print_cr("vm_info: %s", Abstract_VM_Version::internal_vm_info_string());
st->cr();
}
// print a defined marker to show that error handling finished correctly.
STEP("printing end marker")
if (_verbose) {
st->print_cr("END.");
}
END
# undef BEGIN
# undef STEP
# undef END
}
// Report for the vm_info_cmd. This prints out the information above omitting
// crash and thread specific information. If output is added above, it should be added
// here also, if it is safe to call during a running process.
void VMError::print_vm_info(outputStream* st) {
char buf[O_BUFLEN];
report_vm_version(st, buf, sizeof(buf));
// STEP("printing summary")
st->cr();
st->print_cr("--------------- S U M M A R Y ------------");
st->cr();
// STEP("printing VM option summary")
// VM options
Arguments::print_summary_on(st);
st->cr();
// STEP("printing summary machine and OS info")
os::print_summary_info(st, buf, sizeof(buf));
// STEP("printing date and time")
os::print_date_and_time(st, buf, sizeof(buf));
// Skip: STEP("printing thread")
// STEP("printing process")
st->cr();
st->print_cr("--------------- P R O C E S S ---------------");
st->cr();
// STEP("printing number of OutOfMemoryError and StackOverflow exceptions")
if (Exceptions::has_exception_counts()) {
st->print_cr("OutOfMemory and StackOverflow Exception counts:");
Exceptions::print_exception_counts_on_error(st);
st->cr();
}
// STEP("printing compressed oops mode")
if (UseCompressedOops) {
Universe::print_compressed_oops_mode(st);
if (UseCompressedClassPointers) {
Metaspace::print_compressed_class_space(st);
}
st->cr();
}
// STEP("printing heap information")
if (Universe::is_fully_initialized()) {
MutexLocker hl(Heap_lock);
Universe::heap()->print_on_error(st);
st->cr();
st->print_cr("Polling page: " INTPTR_FORMAT, p2i(os::get_polling_page()));
st->cr();
}
// STEP("printing code cache information")
if (Universe::is_fully_initialized()) {
// print code cache information before vm abort
CodeCache::print_summary(st);
st->cr();
}
// STEP("printing ring buffers")
Events::print_all(st);
st->cr();
// STEP("printing dynamic libraries")
// dynamic libraries, or memory map
os::print_dll_info(st);
st->cr();
// STEP("printing VM options")
// VM options
Arguments::print_on(st);
st->cr();
// STEP("printing warning if internal testing API used")
if (WhiteBox::used()) {
st->print_cr("Unsupported internal testing APIs have been used.");
st->cr();
}
// STEP("printing log configuration")
st->print_cr("Logging:");
LogConfiguration::describe(st);
st->cr();
// STEP("printing all environment variables")
os::print_environment_variables(st, env_list);
st->cr();
// STEP("printing signal handlers")
os::print_signal_handlers(st, buf, sizeof(buf));
st->cr();
// STEP("Native Memory Tracking")
MemTracker::error_report(st);
// STEP("printing system")
st->cr();
st->print_cr("--------------- S Y S T E M ---------------");
st->cr();
// STEP("printing OS information")
os::print_os_info(st);
st->cr();
// STEP("printing CPU info")
os::print_cpu_info(st, buf, sizeof(buf));
st->cr();
// STEP("printing memory info")
os::print_memory_info(st);
st->cr();
// STEP("printing internal vm info")
st->print_cr("vm_info: %s", Abstract_VM_Version::internal_vm_info_string());
st->cr();
// print a defined marker to show that error handling finished correctly.
// STEP("printing end marker")
st->print_cr("END.");
}
volatile intptr_t VMError::first_error_tid = -1;
// An error could happen before tty is initialized or after it has been
// destroyed.
// Please note: to prevent large stack allocations, the log- and
// output-stream use a global scratch buffer for format printing.
// (see VmError::report_and_die(). Access to those streams is synchronized
// in VmError::report_and_die() - there is only one reporting thread at
// any given time.
fdStream VMError::out(defaultStream::output_fd());
fdStream VMError::log; // error log used by VMError::report_and_die()
/** Expand a pattern into a buffer starting at pos and open a file using constructed path */
static int expand_and_open(const char* pattern, char* buf, size_t buflen, size_t pos) {
int fd = -1;
if (Arguments::copy_expand_pid(pattern, strlen(pattern), &buf[pos], buflen - pos)) {
// the O_EXCL flag will cause the open to fail if the file exists
fd = open(buf, O_RDWR | O_CREAT | O_EXCL, 0666);
}
return fd;
}
/**
* Construct file name for a log file and return it's file descriptor.
* Name and location depends on pattern, default_pattern params and access
* permissions.
*/
static int prepare_log_file(const char* pattern, const char* default_pattern, char* buf, size_t buflen) {
int fd = -1;
// If possible, use specified pattern to construct log file name
if (pattern != NULL) {
fd = expand_and_open(pattern, buf, buflen, 0);
}
// Either user didn't specify, or the user's location failed,
// so use the default name in the current directory
if (fd == -1) {
const char* cwd = os::get_current_directory(buf, buflen);
if (cwd != NULL) {
size_t pos = strlen(cwd);
int fsep_len = jio_snprintf(&buf[pos], buflen-pos, "%s", os::file_separator());
pos += fsep_len;
if (fsep_len > 0) {
fd = expand_and_open(default_pattern, buf, buflen, pos);
}
}
}
// try temp directory if it exists.
if (fd == -1) {
const char* tmpdir = os::get_temp_directory();
if (tmpdir != NULL && strlen(tmpdir) > 0) {
int pos = jio_snprintf(buf, buflen, "%s%s", tmpdir, os::file_separator());
if (pos > 0) {
fd = expand_and_open(default_pattern, buf, buflen, pos);
}
}
}
return fd;
}
int VMError::_id;
const char* VMError::_message;
char VMError::_detail_msg[1024];
Thread* VMError::_thread;
address VMError::_pc;
void* VMError::_siginfo;
void* VMError::_context;
const char* VMError::_filename;
int VMError::_lineno;
size_t VMError::_size;
void VMError::report_and_die(Thread* thread, unsigned int sig, address pc, void* siginfo,
void* context, const char* detail_fmt, ...)
{
va_list detail_args;
va_start(detail_args, detail_fmt);
report_and_die(sig, NULL, detail_fmt, detail_args, thread, pc, siginfo, context, NULL, 0, 0);
va_end(detail_args);
}
void VMError::report_and_die(Thread* thread, unsigned int sig, address pc, void* siginfo, void* context)
{
report_and_die(thread, sig, pc, siginfo, context, "%s", "");
}
void VMError::report_and_die(const char* message, const char* detail_fmt, ...)
{
va_list detail_args;
va_start(detail_args, detail_fmt);
report_and_die(INTERNAL_ERROR, message, detail_fmt, detail_args, NULL, NULL, NULL, NULL, NULL, 0, 0);
va_end(detail_args);
}
void VMError::report_and_die(const char* message)
{
report_and_die(message, "%s", "");
}
void VMError::report_and_die(Thread* thread, const char* filename, int lineno, const char* message,
const char* detail_fmt, va_list detail_args)
{
report_and_die(INTERNAL_ERROR, message, detail_fmt, detail_args, thread, NULL, NULL, NULL, filename, lineno, 0);
}
void VMError::report_and_die(Thread* thread, const char* filename, int lineno, size_t size,
VMErrorType vm_err_type, const char* detail_fmt, va_list detail_args) {
report_and_die(vm_err_type, NULL, detail_fmt, detail_args, thread, NULL, NULL, NULL, filename, lineno, size);
}
void VMError::report_and_die(int id, const char* message, const char* detail_fmt, va_list detail_args,
Thread* thread, address pc, void* siginfo, void* context, const char* filename,
int lineno, size_t size)
{
// Don't allocate large buffer on stack
static char buffer[O_BUFLEN];
out.set_scratch_buffer(buffer, sizeof(buffer));
log.set_scratch_buffer(buffer, sizeof(buffer));
// How many errors occurred in error handler when reporting first_error.
static int recursive_error_count;
// We will first print a brief message to standard out (verbose = false),
// then save detailed information in log file (verbose = true).
static bool out_done = false; // done printing to standard out
static bool log_done = false; // done saving error log
static bool transmit_report_done = false; // done error reporting
if (SuppressFatalErrorMessage) {
os::abort(CreateCoredumpOnCrash);
}
intptr_t mytid = os::current_thread_id();
if (first_error_tid == -1 &&
Atomic::cmpxchg_ptr(mytid, &first_error_tid, -1) == -1) {
// Initialize time stamps to use the same base.
out.time_stamp().update_to(1);
log.time_stamp().update_to(1);
_id = id;
_message = message;
_thread = thread;
_pc = pc;
_siginfo = siginfo;
_context = context;
_filename = filename;
_lineno = lineno;
_size = size;
jio_vsnprintf(_detail_msg, sizeof(_detail_msg), detail_fmt, detail_args);
// first time
set_error_reported();
if (ShowMessageBoxOnError || PauseAtExit) {
show_message_box(buffer, sizeof(buffer));
// User has asked JVM to abort. Reset ShowMessageBoxOnError so the
// WatcherThread can kill JVM if the error handler hangs.
ShowMessageBoxOnError = false;
}
os::check_dump_limit(buffer, sizeof(buffer));
// reset signal handlers or exception filter; make sure recursive crashes
// are handled properly.
reset_signal_handlers();
TRACE_VM_ERROR();
} else {
// If UseOsErrorReporting we call this for each level of the call stack
// while searching for the exception handler. Only the first level needs
// to be reported.
if (UseOSErrorReporting && log_done) return;
// This is not the first error, see if it happened in a different thread
// or in the same thread during error reporting.
if (first_error_tid != mytid) {
char msgbuf[64];
jio_snprintf(msgbuf, sizeof(msgbuf),
"[thread " INTX_FORMAT " also had an error]",
mytid);
out.print_raw_cr(msgbuf);
// error reporting is not MT-safe, block current thread
os::infinite_sleep();
} else {
if (recursive_error_count++ > 30) {
out.print_raw_cr("[Too many errors, abort]");
os::die();
}
jio_snprintf(buffer, sizeof(buffer),
"[error occurred during error reporting (%s), id 0x%x]",
_current_step_info, _id);
if (log.is_open()) {
log.cr();
log.print_raw_cr(buffer);
log.cr();
} else {
out.cr();
out.print_raw_cr(buffer);
out.cr();
}
}
}
// print to screen
if (!out_done) {
report(&out, false);
out_done = true;
_current_step = 0;
_current_step_info = "";
}
// print to error log file
if (!log_done) {
// see if log file is already open
if (!log.is_open()) {
// open log file
int fd = prepare_log_file(ErrorFile, "hs_err_pid%p.log", buffer, sizeof(buffer));
if (fd != -1) {
out.print_raw("# An error report file with more information is saved as:\n# ");
out.print_raw_cr(buffer);
log.set_fd(fd);
} else {
out.print_raw_cr("# Can not save log file, dump to screen..");
log.set_fd(defaultStream::output_fd());
/* Error reporting currently needs dumpfile.
* Maybe implement direct streaming in the future.*/
transmit_report_done = true;
}
}
report(&log, true);
_current_step = 0;
_current_step_info = "";
// Run error reporting to determine whether or not to report the crash.
if (!transmit_report_done && should_report_bug(_id)) {
transmit_report_done = true;
const int fd2 = ::dup(log.fd());
FILE* const hs_err = ::fdopen(fd2, "r");
if (NULL != hs_err) {
ErrorReporter er;
er.call(hs_err, buffer, O_BUFLEN);
}
::fclose(hs_err);
}
if (log.fd() != defaultStream::output_fd()) {
close(log.fd());
}
log.set_fd(-1);
log_done = true;
}
static bool skip_replay = ReplayCompiles; // Do not overwrite file during replay
if (DumpReplayDataOnError && _thread && _thread->is_Compiler_thread() && !skip_replay) {
skip_replay = true;
ciEnv* env = ciEnv::current();
if (env != NULL) {
int fd = prepare_log_file(ReplayDataFile, "replay_pid%p.log", buffer, sizeof(buffer));
if (fd != -1) {
FILE* replay_data_file = os::open(fd, "w");
if (replay_data_file != NULL) {
fileStream replay_data_stream(replay_data_file, /*need_close=*/true);
env->dump_replay_data_unsafe(&replay_data_stream);
out.print_raw("#\n# Compiler replay data is saved as:\n# ");
out.print_raw_cr(buffer);
} else {
int e = errno;
out.print_raw("#\n# Can't open file to dump replay data. Error: ");
out.print_raw_cr(os::strerror(e));
}
}
}
}
static bool skip_bug_url = !should_report_bug(_id);
if (!skip_bug_url) {
skip_bug_url = true;
out.print_raw_cr("#");
print_bug_submit_message(&out, _thread);
}
static bool skip_OnError = false;
if (!skip_OnError && OnError && OnError[0]) {
skip_OnError = true;
// Flush output and finish logs before running OnError commands.
ostream_abort();
out.print_raw_cr("#");
out.print_raw ("# -XX:OnError=\"");
out.print_raw (OnError);
out.print_raw_cr("\"");
char* cmd;
const char* ptr = OnError;
while ((cmd = next_OnError_command(buffer, sizeof(buffer), &ptr)) != NULL){
out.print_raw ("# Executing ");
#if defined(LINUX) || defined(_ALLBSD_SOURCE)
out.print_raw ("/bin/sh -c ");
#elif defined(SOLARIS)
out.print_raw ("/usr/bin/sh -c ");
#endif
out.print_raw ("\"");
out.print_raw (cmd);
out.print_raw_cr("\" ...");
if (os::fork_and_exec(cmd) < 0) {
out.print_cr("os::fork_and_exec failed: %s (%s=%d)",
os::strerror(errno), os::errno_name(errno), errno);
}
}
// done with OnError
OnError = NULL;
}
if (!UseOSErrorReporting) {
// os::abort() will call abort hooks, try it first.
static bool skip_os_abort = false;
if (!skip_os_abort) {
skip_os_abort = true;
bool dump_core = should_report_bug(_id);
os::abort(dump_core && CreateCoredumpOnCrash, _siginfo, _context);
}
// if os::abort() doesn't abort, try os::die();
os::die();
}
}
/*
* OnOutOfMemoryError scripts/commands executed while VM is a safepoint - this
* ensures utilities such as jmap can observe the process is a consistent state.
*/
class VM_ReportJavaOutOfMemory : public VM_Operation {
private:
const char* _message;
public:
VM_ReportJavaOutOfMemory(const char* message) { _message = message; }
VMOp_Type type() const { return VMOp_ReportJavaOutOfMemory; }
void doit();
};
void VM_ReportJavaOutOfMemory::doit() {
// Don't allocate large buffer on stack
static char buffer[O_BUFLEN];
tty->print_cr("#");
tty->print_cr("# java.lang.OutOfMemoryError: %s", _message);
tty->print_cr("# -XX:OnOutOfMemoryError=\"%s\"", OnOutOfMemoryError);
// make heap parsability
Universe::heap()->ensure_parsability(false); // no need to retire TLABs
char* cmd;
const char* ptr = OnOutOfMemoryError;
while ((cmd = next_OnError_command(buffer, sizeof(buffer), &ptr)) != NULL){
tty->print("# Executing ");
#if defined(LINUX)
tty->print ("/bin/sh -c ");
#elif defined(SOLARIS)
tty->print ("/usr/bin/sh -c ");
#endif
tty->print_cr("\"%s\"...", cmd);
if (os::fork_and_exec(cmd) < 0) {
tty->print_cr("os::fork_and_exec failed: %s (%s=%d)",
os::strerror(errno), os::errno_name(errno), errno);
}
}
}
void VMError::report_java_out_of_memory(const char* message) {
if (OnOutOfMemoryError && OnOutOfMemoryError[0]) {
MutexLocker ml(Heap_lock);
VM_ReportJavaOutOfMemory op(message);
VMThread::execute(&op);
}
}
void VMError::show_message_box(char *buf, int buflen) {
bool yes;
do {
error_string(buf, buflen);
yes = os::start_debugging(buf,buflen);
} while (yes);
}