| /* |
| * Copyright (c) 2003, 2020, 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 "precompiled.hpp" |
| #include "jvm.h" |
| #include "code/codeCache.hpp" |
| #include "compiler/compileBroker.hpp" |
| #include "compiler/disassembler.hpp" |
| #include "gc/shared/gcConfig.hpp" |
| #include "gc/shared/gcLogPrecious.hpp" |
| #include "logging/logConfiguration.hpp" |
| #include "memory/metaspace.hpp" |
| #include "memory/metaspaceShared.hpp" |
| #include "memory/resourceArea.inline.hpp" |
| #include "memory/universe.hpp" |
| #include "oops/compressedOops.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/safepointMechanism.hpp" |
| #include "runtime/thread.inline.hpp" |
| #include "runtime/threadSMR.hpp" |
| #include "runtime/vmThread.hpp" |
| #include "runtime/vmOperations.hpp" |
| #include "runtime/vm_version.hpp" |
| #include "runtime/flags/jvmFlag.hpp" |
| #include "services/memTracker.hpp" |
| #include "utilities/debug.hpp" |
| #include "utilities/decoder.hpp" |
| #include "utilities/defaultStream.hpp" |
| #include "utilities/events.hpp" |
| #include "utilities/vmError.hpp" |
| #include "utilities/macros.hpp" |
| #if INCLUDE_JFR |
| #include "jfr/jfr.hpp" |
| #endif |
| |
| #ifndef PRODUCT |
| #include <signal.h> |
| #endif // PRODUCT |
| |
| bool VMError::_error_reported = false; |
| |
| // call this when the VM is dying--it might loosen some asserts |
| bool VMError::is_error_reported() { return _error_reported; } |
| |
| // returns an address which is guaranteed to generate a SIGSEGV on read, |
| // for test purposes, which is not NULL and contains bits in every word |
| void* VMError::get_segfault_address() { |
| return (void*) |
| #ifdef _LP64 |
| 0xABC0000000000ABCULL; |
| #else |
| 0x00000ABC; |
| #endif |
| } |
| |
| // List of environment variables that should be reported in error log file. |
| const char *env_list[] = { |
| // All platforms |
| "JAVA_HOME", "JAVA_TOOL_OPTIONS", "_JAVA_OPTIONS", "CLASSPATH", |
| "PATH", "USERNAME", |
| |
| // Env variables that are defined on Linux/BSD |
| "LD_LIBRARY_PATH", "LD_PRELOAD", "SHELL", "DISPLAY", |
| "HOSTTYPE", "OSTYPE", "ARCH", "MACHTYPE", |
| "LANG", "LC_ALL", "LC_CTYPE", "TZ", |
| |
| // defined on AIX |
| "LIBPATH", "LDR_PRELOAD", "LDR_PRELOAD64", |
| |
| // defined on Linux/AIX/BSD |
| "_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; |
| const char *url = Arguments::java_vendor_url_bug(); |
| if (url == NULL || *url == '\0') |
| url = JDK_Version::runtime_vendor_vm_bug_url(); |
| if (url != NULL && *url != '\0') { |
| out->print_raw_cr("# If you would like to submit a bug report, please visit:"); |
| out->print_raw ("# "); |
| out->print_raw_cr(url); |
| } |
| // 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()) { |
| if (thread->as_Java_thread()->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:"); |
| st->cr(); |
| |
| // Print the frames |
| StackFrameStream sfs(jt, true /* update */, true /* process_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, true /* update */, true /* process_frames */); !sfs.is_done(); sfs.next()) { |
| sfs.current()->print_on_error(st, buf, buflen, verbose); |
| st->cr(); |
| } |
| } |
| #endif // ZERO |
| } |
| |
| void VMError::print_native_stack(outputStream* st, frame fr, Thread* t, char* buf, int buf_size) { |
| |
| // see if it's a valid frame |
| if (fr.pc()) { |
| st->print_cr("Native frames: (J=compiled Java code, A=aot compiled Java code, j=interpreted, Vv=VM code, C=native code)"); |
| |
| int count = 0; |
| while (count++ < StackPrintLimit) { |
| fr.print_on_error(st, buf, buf_size); |
| if (fr.pc()) { // print source file and line, if available |
| char buf[128]; |
| int line_no; |
| if (Decoder::get_source_info(fr.pc(), buf, sizeof(buf), &line_no)) { |
| st->print(" (%s:%d)", buf, line_no); |
| } |
| } |
| st->cr(); |
| // Compiled code may use EBP register on x86 so it looks like |
| // non-walkable C frame. Use frame.sender() for java frames. |
| if (t && t->is_Java_thread()) { |
| // Catch very first native frame by using stack address. |
| // For JavaThread stack_base and stack_size should be set. |
| if (!t->is_in_full_stack((address)(fr.real_fp() + 1))) { |
| break; |
| } |
| if (fr.is_java_frame() || fr.is_native_frame() || fr.is_runtime_frame()) { |
| RegisterMap map(t->as_Java_thread(), false); // No update |
| fr = fr.sender(&map); |
| } else { |
| // is_first_C_frame() does only simple checks for frame pointer, |
| // it will pass if java compiled code has a pointer in EBP. |
| if (os::is_first_C_frame(&fr)) break; |
| fr = os::get_sender_for_C_frame(&fr); |
| } |
| } else { |
| if (os::is_first_C_frame(&fr)) break; |
| fr = os::get_sender_for_C_frame(&fr); |
| } |
| } |
| |
| if (count > StackPrintLimit) { |
| st->print_cr("...<more frames>..."); |
| } |
| |
| st->cr(); |
| } |
| } |
| |
| 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 (CompressedOops::mode()) { |
| case CompressedOops::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 CompressedOops::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; |
| default: |
| break; |
| } |
| } |
| st->print_cr("# This output file may be truncated or incomplete."); |
| } |
| |
| 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* vendor_version = JDK_Version::runtime_vendor_version() != NULL ? |
| JDK_Version::runtime_vendor_version() : ""; |
| const char* jdk_debug_level = VM_Version::printable_jdk_debug_level() != NULL ? |
| VM_Version::printable_jdk_debug_level() : ""; |
| |
| st->print_cr("# JRE version: %s%s%s (%s) (%sbuild %s)", runtime_name, |
| (*vendor_version != '\0') ? " " : "", vendor_version, |
| 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, %s, %s)", |
| VM_Version::vm_name(), |
| (*vendor_version != '\0') ? " " : "", vendor_version, |
| jdk_debug_level, |
| VM_Version::vm_release(), |
| VM_Version::vm_info_string(), |
| TieredCompilation ? ", tiered" : "", |
| #if INCLUDE_JVMCI |
| EnableJVMCI ? ", jvmci" : "", |
| UseJVMCICompiler ? ", jvmci compiler" : "", |
| #else |
| "", "", |
| #endif |
| UseCompressedOops ? ", compressed oops" : "", |
| GCConfig::hs_err_name(), |
| 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; |
| |
| volatile jlong VMError::_reporting_start_time = -1; |
| volatile bool VMError::_reporting_did_timeout = false; |
| volatile jlong VMError::_step_start_time = -1; |
| volatile bool VMError::_step_did_timeout = false; |
| |
| // Helper, return current timestamp for timeout handling. |
| jlong VMError::get_current_timestamp() { |
| return os::javaTimeNanos(); |
| } |
| // Factor to translate the timestamp to seconds. |
| #define TIMESTAMP_TO_SECONDS_FACTOR (1000 * 1000 * 1000) |
| |
| void VMError::record_reporting_start_time() { |
| const jlong now = get_current_timestamp(); |
| Atomic::store(&_reporting_start_time, now); |
| } |
| |
| jlong VMError::get_reporting_start_time() { |
| return Atomic::load(&_reporting_start_time); |
| } |
| |
| void VMError::record_step_start_time() { |
| const jlong now = get_current_timestamp(); |
| Atomic::store(&_step_start_time, now); |
| } |
| |
| jlong VMError::get_step_start_time() { |
| return Atomic::load(&_step_start_time); |
| } |
| |
| void VMError::clear_step_start_time() { |
| return Atomic::store(&_step_start_time, (jlong)0); |
| } |
| |
| 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; \ |
| record_step_start_time(); _step_did_timeout = false; |
| # define END clear_step_start_time(); } |
| |
| // 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); |
| } |
| |
| // TestUnresponsiveErrorHandler: We want to test both step timeouts and global timeout. |
| // Step to global timeout ratio is 4:1, so in order to be absolutely sure we hit the |
| // global timeout, let's execute the timeout step five times. |
| // See corresponding test in test/runtime/ErrorHandling/TimeoutInErrorHandlingTest.java |
| STEP("setup for test unresponsive error reporting step") |
| if (_verbose && TestUnresponsiveErrorHandler) { |
| // We record reporting_start_time for this test here because we |
| // care about the time spent executing TIMEOUT_TEST_STEP and not |
| // about the time it took us to get here. |
| tty->print_cr("Recording reporting_start_time for TestUnresponsiveErrorHandler."); |
| record_reporting_start_time(); |
| } |
| |
| #define TIMEOUT_TEST_STEP STEP("test unresponsive error reporting step") \ |
| if (_verbose && TestUnresponsiveErrorHandler) { os::infinite_sleep(); } |
| TIMEOUT_TEST_STEP |
| TIMEOUT_TEST_STEP |
| TIMEOUT_TEST_STEP |
| TIMEOUT_TEST_STEP |
| TIMEOUT_TEST_STEP |
| |
| 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)); |
| if (_siginfo != NULL && os::signal_sent_by_kill(_siginfo)) { |
| st->print(" (sent by kill)"); |
| } |
| } 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("#"); |
| |
| JFR_ONLY(STEP("printing jfr information")) |
| JFR_ONLY(Jfr::on_vm_error_report(st);) |
| |
| 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, _thread->as_Java_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())) { |
| Thread* thread = ((NamedThread *)_thread)->processed_thread(); |
| if (thread != NULL && thread->is_Java_thread()) { |
| JavaThread* jt = thread->as_Java_thread(); |
| 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 && _thread && Universe::is_fully_initialized()) { |
| ResourceMark rm(_thread); |
| 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("inspecting top of stack") |
| |
| // decode stack contents if possible |
| if (_verbose && _context && _thread && Universe::is_fully_initialized()) { |
| frame fr = os::fetch_frame_from_context(_context); |
| const int slots = 8; |
| const intptr_t *start = fr.sp(); |
| const intptr_t *end = start + slots; |
| if (is_aligned(start, sizeof(intptr_t)) && os::is_readable_range(start, end)) { |
| st->print_cr("Stack slot to memory mapping:"); |
| for (int i = 0; i < slots; ++i) { |
| st->print("stack at sp + %d slots: ", i); |
| ResourceMark rm(_thread); |
| os::print_location(st, *(start + i)); |
| } |
| } |
| 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 if (_thread != NULL) { |
| // Disassembling nmethod will incur resource memory allocation, |
| // only do so when thread is valid. |
| ResourceMark rm(_thread); |
| 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(); |
| } |
| |
| #ifndef _WIN32 |
| STEP("printing user info") |
| |
| if (ExtensiveErrorReports && _verbose) { |
| os::Posix::print_user_info(st); |
| } |
| #endif |
| |
| 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(); |
| } |
| |
| #ifdef _LP64 |
| STEP("printing compressed oops mode") |
| |
| if (_verbose && UseCompressedOops) { |
| CompressedOops::print_mode(st); |
| if (UseCompressedClassPointers) { |
| CDS_ONLY(MetaspaceShared::print_on(st);) |
| Metaspace::print_compressed_class_space(st); |
| CompressedKlassPointers::print_mode(st); |
| } |
| st->cr(); |
| } |
| #endif |
| |
| STEP("printing heap information") |
| |
| if (_verbose) { |
| GCLogPrecious::print_on_error(st); |
| |
| if (Universe::heap() != NULL) { |
| Universe::heap()->print_on_error(st); |
| st->cr(); |
| } |
| |
| if (Universe::is_fully_initialized()) { |
| st->print_cr("Polling page: " INTPTR_FORMAT, p2i(SafepointMechanism::get_polling_page())); |
| st->cr(); |
| } |
| } |
| |
| STEP("printing metaspace information") |
| |
| if (_verbose && Universe::is_fully_initialized()) { |
| st->print_cr("Metaspace:"); |
| MetaspaceUtils::print_basic_report(st, 0); |
| } |
| |
| 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 native decoder state") |
| |
| if (_verbose) { |
| Decoder::print_state_on(st); |
| st->cr(); |
| } |
| |
| STEP("printing VM options") |
| |
| if (_verbose) { |
| // VM options |
| Arguments::print_on(st); |
| st->cr(); |
| } |
| |
| STEP("printing flags") |
| |
| if (_verbose) { |
| JVMFlag::printFlags( |
| st, |
| true, // with comments |
| false, // no ranges |
| true); // skip defaults |
| 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", 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(); |
| } |
| |
| #ifdef _LP64 |
| // STEP("printing compressed oops mode") |
| if (UseCompressedOops) { |
| CompressedOops::print_mode(st); |
| if (UseCompressedClassPointers) { |
| CDS_ONLY(MetaspaceShared::print_on(st);) |
| Metaspace::print_compressed_class_space(st); |
| CompressedKlassPointers::print_mode(st); |
| } |
| st->cr(); |
| } |
| #endif |
| |
| // STEP("printing heap information") |
| |
| if (Universe::is_fully_initialized()) { |
| MutexLocker hl(Heap_lock); |
| GCLogPrecious::print_on_error(st); |
| Universe::heap()->print_on_error(st); |
| st->cr(); |
| st->print_cr("Polling page: " INTPTR_FORMAT, p2i(SafepointMechanism::get_polling_page())); |
| st->cr(); |
| } |
| |
| // STEP("printing metaspace information") |
| |
| if (Universe::is_fully_initialized()) { |
| st->print_cr("Metaspace:"); |
| MetaspaceUtils::print_basic_report(st, 0); |
| } |
| |
| // 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", 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; |
| |
| /** Expand a pattern into a buffer starting at pos and open a file using constructed path */ |
| static int expand_and_open(const char* pattern, bool overwrite_existing, char* buf, size_t buflen, size_t pos) { |
| int fd = -1; |
| int mode = O_RDWR | O_CREAT; |
| if (overwrite_existing) { |
| mode |= O_TRUNC; |
| } else { |
| mode |= O_EXCL; |
| } |
| if (Arguments::copy_expand_pid(pattern, strlen(pattern), &buf[pos], buflen - pos)) { |
| fd = open(buf, mode, 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, bool overwrite_existing, 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, overwrite_existing, 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, overwrite_existing, 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, overwrite_existing, 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(Thread* thread, void* context, 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, context, 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) |
| { |
| // A single scratch buffer to be used from here on. |
| // Do not rely on it being preserved across function calls. |
| static char buffer[O_BUFLEN]; |
| |
| // File descriptor to tty to print an error summary to. |
| // Hard wired to stdout; see JDK-8215004 (compatibility concerns). |
| static const int fd_out = 1; // stdout |
| |
| // File descriptor to the error log file. |
| static int fd_log = -1; |
| |
| #ifdef CAN_SHOW_REGISTERS_ON_ASSERT |
| // Disarm assertion poison page, since from this point on we do not need this mechanism anymore and it may |
| // cause problems in error handling during native OOM, see JDK-8227275. |
| disarm_assert_poison(); |
| #endif |
| |
| // Use local fdStream objects only. Do not use global instances whose initialization |
| // relies on dynamic initialization (see JDK-8214975). Do not rely on these instances |
| // to carry over into recursions or invocations from other threads. |
| fdStream out(fd_out); |
| out.set_scratch_buffer(buffer, sizeof(buffer)); |
| |
| // Depending on the re-entrance depth at this point, fd_log may be -1 or point to an open hs-err file. |
| fdStream log(fd_log); |
| 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 |
| |
| if (SuppressFatalErrorMessage) { |
| os::abort(CreateCoredumpOnCrash); |
| } |
| intptr_t mytid = os::current_thread_id(); |
| if (_first_error_tid == -1 && |
| Atomic::cmpxchg(&_first_error_tid, (intptr_t)-1, mytid) == -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 |
| _error_reported = true; |
| |
| reporting_started(); |
| if (!TestUnresponsiveErrorHandler) { |
| // Record reporting_start_time unless we're running the |
| // TestUnresponsiveErrorHandler test. For that test we record |
| // reporting_start_time at the beginning of the test. |
| record_reporting_start_time(); |
| } else { |
| out.print_raw_cr("Delaying recording reporting_start_time for TestUnresponsiveErrorHandler."); |
| } |
| |
| 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(); |
| } 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(); |
| } |
| |
| outputStream* const st = log.is_open() ? &log : &out; |
| st->cr(); |
| |
| // Timeout handling. |
| if (_step_did_timeout) { |
| // The current step had a timeout. Lets continue reporting with the next step. |
| st->print_raw("[timeout occurred during error reporting in step \""); |
| st->print_raw(_current_step_info); |
| st->print_cr("\"] after " INT64_FORMAT " s.", |
| (int64_t) |
| ((get_current_timestamp() - _step_start_time) / TIMESTAMP_TO_SECONDS_FACTOR)); |
| } else if (_reporting_did_timeout) { |
| // We hit ErrorLogTimeout. Reporting will stop altogether. Let's wrap things |
| // up, the process is about to be stopped by the WatcherThread. |
| st->print_cr("------ Timeout during error reporting after " INT64_FORMAT " s. ------", |
| (int64_t) |
| ((get_current_timestamp() - _reporting_start_time) / TIMESTAMP_TO_SECONDS_FACTOR)); |
| st->flush(); |
| // Watcherthread is about to call os::die. Lets just wait. |
| os::infinite_sleep(); |
| } else { |
| // Crash or assert during error reporting. Lets continue reporting with the next step. |
| stringStream ss(buffer, sizeof(buffer)); |
| // Note: this string does get parsed by a number of jtreg tests, |
| // see hotspot/jtreg/runtime/ErrorHandling. |
| ss.print("[error occurred during error reporting (%s), id 0x%x", |
| _current_step_info, id); |
| char signal_name[64]; |
| if (os::exception_name(id, signal_name, sizeof(signal_name))) { |
| ss.print(", %s (0x%x) at pc=" PTR_FORMAT, signal_name, id, p2i(pc)); |
| } else { |
| if (should_report_bug(id)) { |
| ss.print(", Internal Error (%s:%d)", |
| filename == NULL ? "??" : filename, lineno); |
| } else { |
| ss.print(", Out of Memory Error (%s:%d)", |
| filename == NULL ? "??" : filename, lineno); |
| } |
| } |
| ss.print("]"); |
| st->print_raw_cr(buffer); |
| st->cr(); |
| } |
| } |
| } |
| |
| // Part 1: print an abbreviated version (the '#' section) to stdout. |
| if (!out_done) { |
| // Suppress this output if we plan to print Part 2 to stdout too. |
| // No need to have the "#" section twice. |
| if (!(ErrorFileToStdout && out.fd() == 1)) { |
| report(&out, false); |
| } |
| |
| out_done = true; |
| |
| _current_step = 0; |
| _current_step_info = ""; |
| } |
| |
| // Part 2: print a full error log file (optionally to stdout or stderr). |
| // print to error log file |
| if (!log_done) { |
| // see if log file is already open |
| if (!log.is_open()) { |
| // open log file |
| if (ErrorFileToStdout) { |
| fd_log = 1; |
| } else if (ErrorFileToStderr) { |
| fd_log = 2; |
| } else { |
| fd_log = prepare_log_file(ErrorFile, "hs_err_pid%p.log", true, |
| buffer, sizeof(buffer)); |
| if (fd_log != -1) { |
| out.print_raw("# An error report file with more information is saved as:\n# "); |
| out.print_raw_cr(buffer); |
| } else { |
| out.print_raw_cr("# Can not save log file, dump to screen.."); |
| fd_log = 1; |
| } |
| } |
| log.set_fd(fd_log); |
| } |
| |
| report(&log, true); |
| log_done = true; |
| _current_step = 0; |
| _current_step_info = ""; |
| |
| if (fd_log > 3) { |
| close(fd_log); |
| fd_log = -1; |
| } |
| |
| log.set_fd(-1); |
| } |
| |
| JFR_ONLY(Jfr::on_vm_shutdown(true);) |
| |
| if (PrintNMTStatistics) { |
| fdStream fds(fd_out); |
| MemTracker::final_report(&fds); |
| } |
| |
| 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) { |
| const bool overwrite = false; // We do not overwrite an existing replay file. |
| int fd = prepare_log_file(ReplayDataFile, "replay_pid%p.log", overwrite, 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(_WINDOWS) |
| out.print_raw ("cmd /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 "); |
| #endif |
| tty->print_cr("\"%s\"...", cmd); |
| |
| if (os::fork_and_exec(cmd, true) < 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); |
| } |
| |
| // Timeout handling: check if a timeout happened (either a single step did |
| // timeout or the whole of error reporting hit ErrorLogTimeout). Interrupt |
| // the reporting thread if that is the case. |
| bool VMError::check_timeout() { |
| |
| if (ErrorLogTimeout == 0) { |
| return false; |
| } |
| |
| // Do not check for timeouts if we still have a message box to show to the |
| // user or if there are OnError handlers to be run. |
| if (ShowMessageBoxOnError |
| || (OnError != NULL && OnError[0] != '\0') |
| || Arguments::abort_hook() != NULL) { |
| return false; |
| } |
| |
| const jlong reporting_start_time_l = get_reporting_start_time(); |
| const jlong now = get_current_timestamp(); |
| // Timestamp is stored in nanos. |
| if (reporting_start_time_l > 0) { |
| const jlong end = reporting_start_time_l + (jlong)ErrorLogTimeout * TIMESTAMP_TO_SECONDS_FACTOR; |
| if (end <= now && !_reporting_did_timeout) { |
| // We hit ErrorLogTimeout and we haven't interrupted the reporting |
| // thread yet. |
| _reporting_did_timeout = true; |
| interrupt_reporting_thread(); |
| return true; // global timeout |
| } |
| } |
| |
| const jlong step_start_time_l = get_step_start_time(); |
| if (step_start_time_l > 0) { |
| // A step times out after a quarter of the total timeout. Steps are mostly fast unless they |
| // hang for some reason, so this simple rule allows for three hanging step and still |
| // hopefully leaves time enough for the rest of the steps to finish. |
| const jlong end = step_start_time_l + (jlong)ErrorLogTimeout * TIMESTAMP_TO_SECONDS_FACTOR / 4; |
| if (end <= now && !_step_did_timeout) { |
| // The step timed out and we haven't interrupted the reporting |
| // thread yet. |
| _step_did_timeout = true; |
| interrupt_reporting_thread(); |
| return false; // (Not a global timeout) |
| } |
| } |
| |
| return false; |
| |
| } |
| |
| #ifndef PRODUCT |
| typedef void (*voidfun_t)(); |
| |
| // Crash with an authentic sigfpe |
| volatile int sigfpe_int = 0; |
| static void crash_with_sigfpe() { |
| |
| // generate a native synchronous SIGFPE where possible; |
| sigfpe_int = sigfpe_int/sigfpe_int; |
| |
| // if that did not cause a signal (e.g. on ppc), just |
| // raise the signal. |
| #ifndef _WIN32 |
| // OSX implements raise(sig) incorrectly so we need to |
| // explicitly target the current thread |
| pthread_kill(pthread_self(), SIGFPE); |
| #endif |
| |
| } // end: crash_with_sigfpe |
| |
| // crash with sigsegv at non-null address. |
| static void crash_with_segfault() { |
| |
| char* const crash_addr = (char*) VMError::get_segfault_address(); |
| *crash_addr = 'X'; |
| |
| } // end: crash_with_segfault |
| |
| void VMError::test_error_handler() { |
| controlled_crash(ErrorHandlerTest); |
| } |
| |
| // crash in a controlled way: |
| // how can be one of: |
| // 1,2 - asserts |
| // 3,4 - guarantee |
| // 5-7 - fatal |
| // 8 - vm_exit_out_of_memory |
| // 9 - ShouldNotCallThis |
| // 10 - ShouldNotReachHere |
| // 11 - Unimplemented |
| // 12,13 - (not guaranteed) crashes |
| // 14 - SIGSEGV |
| // 15 - SIGFPE |
| void VMError::controlled_crash(int how) { |
| if (how == 0) return; |
| |
| // If asserts are disabled, use the corresponding guarantee instead. |
| NOT_DEBUG(if (how <= 2) how += 2); |
| |
| const char* const str = "hello"; |
| const size_t num = (size_t)os::vm_page_size(); |
| |
| const char* const eol = os::line_separator(); |
| const char* const msg = "this message should be truncated during formatting"; |
| char * const dataPtr = NULL; // bad data pointer |
| const void (*funcPtr)(void); // bad function pointer |
| |
| #if defined(PPC64) && !defined(ABI_ELFv2) |
| struct FunctionDescriptor functionDescriptor; |
| |
| functionDescriptor.set_entry((address) 0xF); |
| funcPtr = (const void(*)()) &functionDescriptor; |
| #else |
| funcPtr = (const void(*)()) 0xF; |
| #endif |
| |
| // Keep this in sync with test/hotspot/jtreg/runtime/ErrorHandling/ErrorHandler.java |
| // which tests cases 1 thru 13. |
| // Case 14 is tested by test/hotspot/jtreg/runtime/ErrorHandling/SafeFetchInErrorHandlingTest.java. |
| // Case 15 is tested by test/hotspot/jtreg/runtime/ErrorHandling/SecondaryErrorTest.java. |
| // Case 16 is tested by test/hotspot/jtreg/runtime/ErrorHandling/ThreadsListHandleInErrorHandlingTest.java. |
| // Case 17 is tested by test/hotspot/jtreg/runtime/ErrorHandling/NestedThreadsListHandleInErrorHandlingTest.java. |
| |
| // We try to grab Threads_lock to keep ThreadsSMRSupport::print_info_on() |
| // from racing with Threads::add() or Threads::remove() as we |
| // generate the hs_err_pid file. This makes our ErrorHandling tests |
| // more stable. |
| if (!Threads_lock->owned_by_self()) { |
| Threads_lock->try_lock(); |
| // The VM is going to die so no need to unlock Thread_lock. |
| } |
| |
| switch (how) { |
| case 1: vmassert(str == NULL, "expected null"); break; |
| case 2: vmassert(num == 1023 && *str == 'X', |
| "num=" SIZE_FORMAT " str=\"%s\"", num, str); break; |
| case 3: guarantee(str == NULL, "expected null"); break; |
| case 4: guarantee(num == 1023 && *str == 'X', |
| "num=" SIZE_FORMAT " str=\"%s\"", num, str); break; |
| case 5: fatal("expected null"); break; |
| case 6: fatal("num=" SIZE_FORMAT " str=\"%s\"", num, str); break; |
| case 7: fatal("%s%s# %s%s# %s%s# %s%s# %s%s# " |
| "%s%s# %s%s# %s%s# %s%s# %s%s# " |
| "%s%s# %s%s# %s%s# %s%s# %s", |
| msg, eol, msg, eol, msg, eol, msg, eol, msg, eol, |
| msg, eol, msg, eol, msg, eol, msg, eol, msg, eol, |
| msg, eol, msg, eol, msg, eol, msg, eol, msg); break; |
| case 8: vm_exit_out_of_memory(num, OOM_MALLOC_ERROR, "ChunkPool::allocate"); break; |
| case 9: ShouldNotCallThis(); break; |
| case 10: ShouldNotReachHere(); break; |
| case 11: Unimplemented(); break; |
| // There's no guarantee the bad data pointer will crash us |
| // so "break" out to the ShouldNotReachHere(). |
| case 12: *dataPtr = '\0'; break; |
| // There's no guarantee the bad function pointer will crash us |
| // so "break" out to the ShouldNotReachHere(). |
| case 13: (*funcPtr)(); break; |
| case 14: crash_with_segfault(); break; |
| case 15: crash_with_sigfpe(); break; |
| case 16: { |
| ThreadsListHandle tlh; |
| fatal("Force crash with an active ThreadsListHandle."); |
| } |
| case 17: { |
| ThreadsListHandle tlh; |
| { |
| ThreadsListHandle tlh2; |
| fatal("Force crash with a nested ThreadsListHandle."); |
| } |
| } |
| case 18: { |
| // Check for assert when allocating from resource area without a |
| // ResourceMark. There must not be a ResourceMark on the |
| // current stack when invoking this test case. |
| ResourceArea* area = Thread::current()->resource_area(); |
| assert(area->nesting() == 0, "unexpected ResourceMark"); |
| area->allocate_bytes(100); |
| break; |
| } |
| |
| default: tty->print_cr("ERROR: %d: unexpected test_num value.", how); |
| } |
| tty->print_cr("VMError::controlled_crash: survived intentional crash. Did you suppress the assert?"); |
| ShouldNotReachHere(); |
| } |
| #endif // !PRODUCT |