1 /* 2 * Copyright (c) 2003, 2017, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 * 23 */ 24 25 #include <fcntl.h> 26 #include "precompiled.hpp" 27 #include "code/codeCache.hpp" 28 #include "compiler/compileBroker.hpp" 29 #include "compiler/disassembler.hpp" 30 #include "gc/shared/collectedHeap.hpp" 31 #include "logging/logConfiguration.hpp" 32 #include "prims/jvm.h" 33 #include "prims/whitebox.hpp" 34 #include "runtime/arguments.hpp" 35 #include "runtime/atomic.hpp" 36 #include "runtime/frame.inline.hpp" 37 #include "runtime/init.hpp" 38 #include "runtime/os.hpp" 39 #include "runtime/thread.inline.hpp" 40 #include "runtime/vmThread.hpp" 41 #include "runtime/vm_operations.hpp" 42 #include "runtime/vm_version.hpp" 43 #include "services/memTracker.hpp" 44 #include "trace/traceMacros.hpp" 45 #include "utilities/debug.hpp" 46 #include "utilities/decoder.hpp" 47 #include "utilities/defaultStream.hpp" 48 #include "utilities/errorReporter.hpp" 49 #include "utilities/events.hpp" 50 #include "utilities/vmError.hpp" 51 52 // List of environment variables that should be reported in error log file. 53 const char *env_list[] = { 54 // All platforms 55 "JAVA_HOME", "JRE_HOME", "JAVA_TOOL_OPTIONS", "_JAVA_OPTIONS", "CLASSPATH", 56 "JAVA_COMPILER", "PATH", "USERNAME", 57 58 // Env variables that are defined on Solaris/Linux/BSD 59 "LD_LIBRARY_PATH", "LD_PRELOAD", "SHELL", "DISPLAY", 60 "HOSTTYPE", "OSTYPE", "ARCH", "MACHTYPE", 61 62 // defined on Linux 63 "LD_ASSUME_KERNEL", "_JAVA_SR_SIGNUM", 64 65 // defined on Darwin 66 "DYLD_LIBRARY_PATH", "DYLD_FALLBACK_LIBRARY_PATH", 67 "DYLD_FRAMEWORK_PATH", "DYLD_FALLBACK_FRAMEWORK_PATH", 68 "DYLD_INSERT_LIBRARIES", 69 70 // defined on Windows 71 "OS", "PROCESSOR_IDENTIFIER", "_ALT_JAVA_HOME_DIR", 72 73 (const char *)0 74 }; 75 76 // A simple parser for -XX:OnError, usage: 77 // ptr = OnError; 78 // while ((cmd = next_OnError_command(buffer, sizeof(buffer), &ptr) != NULL) 79 // ... ... 80 static char* next_OnError_command(char* buf, int buflen, const char** ptr) { 81 if (ptr == NULL || *ptr == NULL) return NULL; 82 83 const char* cmd = *ptr; 84 85 // skip leading blanks or ';' 86 while (*cmd == ' ' || *cmd == ';') cmd++; 87 88 if (*cmd == '\0') return NULL; 89 90 const char * cmdend = cmd; 91 while (*cmdend != '\0' && *cmdend != ';') cmdend++; 92 93 Arguments::copy_expand_pid(cmd, cmdend - cmd, buf, buflen); 94 95 *ptr = (*cmdend == '\0' ? cmdend : cmdend + 1); 96 return buf; 97 } 98 99 static void print_bug_submit_message(outputStream *out, Thread *thread) { 100 if (out == NULL) return; 101 out->print_raw_cr("# If you would like to submit a bug report, please visit:"); 102 out->print_raw ("# "); 103 out->print_raw_cr(Arguments::java_vendor_url_bug()); 104 // If the crash is in native code, encourage user to submit a bug to the 105 // provider of that code. 106 if (thread && thread->is_Java_thread() && 107 !thread->is_hidden_from_external_view()) { 108 JavaThread* jt = (JavaThread*)thread; 109 if (jt->thread_state() == _thread_in_native) { 110 out->print_cr("# The crash happened outside the Java Virtual Machine in native code.\n# See problematic frame for where to report the bug."); 111 } 112 } 113 out->print_raw_cr("#"); 114 } 115 116 bool VMError::coredump_status; 117 char VMError::coredump_message[O_BUFLEN]; 118 119 void VMError::record_coredump_status(const char* message, bool status) { 120 coredump_status = status; 121 strncpy(coredump_message, message, sizeof(coredump_message)); 122 coredump_message[sizeof(coredump_message)-1] = 0; 123 } 124 125 // Return a string to describe the error 126 char* VMError::error_string(char* buf, int buflen) { 127 char signame_buf[64]; 128 const char *signame = os::exception_name(_id, signame_buf, sizeof(signame_buf)); 129 130 if (signame) { 131 jio_snprintf(buf, buflen, 132 "%s (0x%x) at pc=" PTR_FORMAT ", pid=%d, tid=" UINTX_FORMAT, 133 signame, _id, _pc, 134 os::current_process_id(), os::current_thread_id()); 135 } else if (_filename != NULL && _lineno > 0) { 136 // skip directory names 137 char separator = os::file_separator()[0]; 138 const char *p = strrchr(_filename, separator); 139 int n = jio_snprintf(buf, buflen, 140 "Internal Error at %s:%d, pid=%d, tid=" UINTX_FORMAT, 141 p ? p + 1 : _filename, _lineno, 142 os::current_process_id(), os::current_thread_id()); 143 if (n >= 0 && n < buflen && _message) { 144 if (strlen(_detail_msg) > 0) { 145 jio_snprintf(buf + n, buflen - n, "%s%s: %s", 146 os::line_separator(), _message, _detail_msg); 147 } else { 148 jio_snprintf(buf + n, buflen - n, "%sError: %s", 149 os::line_separator(), _message); 150 } 151 } 152 } else { 153 jio_snprintf(buf, buflen, 154 "Internal Error (0x%x), pid=%d, tid=" UINTX_FORMAT, 155 _id, os::current_process_id(), os::current_thread_id()); 156 } 157 158 return buf; 159 } 160 161 void VMError::print_stack_trace(outputStream* st, JavaThread* jt, 162 char* buf, int buflen, bool verbose) { 163 #ifdef ZERO 164 if (jt->zero_stack()->sp() && jt->top_zero_frame()) { 165 // StackFrameStream uses the frame anchor, which may not have 166 // been set up. This can be done at any time in Zero, however, 167 // so if it hasn't been set up then we just set it up now and 168 // clear it again when we're done. 169 bool has_last_Java_frame = jt->has_last_Java_frame(); 170 if (!has_last_Java_frame) 171 jt->set_last_Java_frame(); 172 st->print("Java frames:"); 173 174 // If the top frame is a Shark frame and the frame anchor isn't 175 // set up then it's possible that the information in the frame 176 // is garbage: it could be from a previous decache, or it could 177 // simply have never been written. So we print a warning... 178 StackFrameStream sfs(jt); 179 if (!has_last_Java_frame && !sfs.is_done()) { 180 if (sfs.current()->zeroframe()->is_shark_frame()) { 181 st->print(" (TOP FRAME MAY BE JUNK)"); 182 } 183 } 184 st->cr(); 185 186 // Print the frames 187 for(int i = 0; !sfs.is_done(); sfs.next(), i++) { 188 sfs.current()->zero_print_on_error(i, st, buf, buflen); 189 st->cr(); 190 } 191 192 // Reset the frame anchor if necessary 193 if (!has_last_Java_frame) 194 jt->reset_last_Java_frame(); 195 } 196 #else 197 if (jt->has_last_Java_frame()) { 198 st->print_cr("Java frames: (J=compiled Java code, j=interpreted, Vv=VM code)"); 199 for(StackFrameStream sfs(jt); !sfs.is_done(); sfs.next()) { 200 sfs.current()->print_on_error(st, buf, buflen, verbose); 201 st->cr(); 202 } 203 } 204 #endif // ZERO 205 } 206 207 void VMError::print_native_stack(outputStream* st, frame fr, Thread* t, char* buf, int buf_size) { 208 209 // see if it's a valid frame 210 if (fr.pc()) { 211 st->print_cr("Native frames: (J=compiled Java code, A=aot compiled Java code, j=interpreted, Vv=VM code, C=native code)"); 212 213 int count = 0; 214 while (count++ < StackPrintLimit) { 215 fr.print_on_error(st, buf, buf_size); 216 st->cr(); 217 // Compiled code may use EBP register on x86 so it looks like 218 // non-walkable C frame. Use frame.sender() for java frames. 219 if (t && t->is_Java_thread()) { 220 // Catch very first native frame by using stack address. 221 // For JavaThread stack_base and stack_size should be set. 222 if (!t->on_local_stack((address)(fr.real_fp() + 1))) { 223 break; 224 } 225 if (fr.is_java_frame() || fr.is_native_frame() || fr.is_runtime_frame()) { 226 RegisterMap map((JavaThread*)t, false); // No update 227 fr = fr.sender(&map); 228 } else { 229 fr = os::get_sender_for_C_frame(&fr); 230 } 231 } else { 232 // is_first_C_frame() does only simple checks for frame pointer, 233 // it will pass if java compiled code has a pointer in EBP. 234 if (os::is_first_C_frame(&fr)) break; 235 fr = os::get_sender_for_C_frame(&fr); 236 } 237 } 238 239 if (count > StackPrintLimit) { 240 st->print_cr("...<more frames>..."); 241 } 242 243 st->cr(); 244 } 245 } 246 247 static void print_oom_reasons(outputStream* st) { 248 st->print_cr("# Possible reasons:"); 249 st->print_cr("# The system is out of physical RAM or swap space"); 250 if (UseCompressedOops) { 251 st->print_cr("# The process is running with CompressedOops enabled, and the Java Heap may be blocking the growth of the native heap"); 252 } 253 if (LogBytesPerWord == 2) { 254 st->print_cr("# In 32 bit mode, the process size limit was hit"); 255 } 256 st->print_cr("# Possible solutions:"); 257 st->print_cr("# Reduce memory load on the system"); 258 st->print_cr("# Increase physical memory or swap space"); 259 st->print_cr("# Check if swap backing store is full"); 260 if (LogBytesPerWord == 2) { 261 st->print_cr("# Use 64 bit Java on a 64 bit OS"); 262 } 263 st->print_cr("# Decrease Java heap size (-Xmx/-Xms)"); 264 st->print_cr("# Decrease number of Java threads"); 265 st->print_cr("# Decrease Java thread stack sizes (-Xss)"); 266 st->print_cr("# Set larger code cache with -XX:ReservedCodeCacheSize="); 267 if (UseCompressedOops) { 268 switch (Universe::narrow_oop_mode()) { 269 case Universe::UnscaledNarrowOop: 270 st->print_cr("# JVM is running with Unscaled Compressed Oops mode in which the Java heap is"); 271 st->print_cr("# placed in the first 4GB address space. The Java Heap base address is the"); 272 st->print_cr("# maximum limit for the native heap growth. Please use -XX:HeapBaseMinAddress"); 273 st->print_cr("# to set the Java Heap base and to place the Java Heap above 4GB virtual address."); 274 break; 275 case Universe::ZeroBasedNarrowOop: 276 st->print_cr("# JVM is running with Zero Based Compressed Oops mode in which the Java heap is"); 277 st->print_cr("# placed in the first 32GB address space. The Java Heap base address is the"); 278 st->print_cr("# maximum limit for the native heap growth. Please use -XX:HeapBaseMinAddress"); 279 st->print_cr("# to set the Java Heap base and to place the Java Heap above 32GB virtual address."); 280 break; 281 default: 282 break; 283 } 284 } 285 st->print_cr("# This output file may be truncated or incomplete."); 286 } 287 288 static const char* gc_mode() { 289 if (UseG1GC) return "g1 gc"; 290 if (UseParallelGC) return "parallel gc"; 291 if (UseConcMarkSweepGC) return "concurrent mark sweep gc"; 292 if (UseSerialGC) return "serial gc"; 293 return "ERROR in GC mode"; 294 } 295 296 static void report_vm_version(outputStream* st, char* buf, int buflen) { 297 // VM version 298 st->print_cr("#"); 299 JDK_Version::current().to_string(buf, buflen); 300 const char* runtime_name = JDK_Version::runtime_name() != NULL ? 301 JDK_Version::runtime_name() : ""; 302 const char* runtime_version = JDK_Version::runtime_version() != NULL ? 303 JDK_Version::runtime_version() : ""; 304 const char* jdk_debug_level = Abstract_VM_Version::printable_jdk_debug_level() != NULL ? 305 Abstract_VM_Version::printable_jdk_debug_level() : ""; 306 307 st->print_cr("# JRE version: %s (%s) (%sbuild %s)", runtime_name, buf, 308 jdk_debug_level, runtime_version); 309 310 // This is the long version with some default settings added 311 st->print_cr("# Java VM: %s (%s%s, %s%s%s%s%s, %s, %s)", 312 Abstract_VM_Version::vm_name(), 313 jdk_debug_level, 314 Abstract_VM_Version::vm_release(), 315 Abstract_VM_Version::vm_info_string(), 316 TieredCompilation ? ", tiered" : "", 317 #if INCLUDE_JVMCI 318 EnableJVMCI ? ", jvmci" : "", 319 UseJVMCICompiler ? ", jvmci compiler" : "", 320 #else 321 "", "", 322 #endif 323 UseCompressedOops ? ", compressed oops" : "", 324 gc_mode(), 325 Abstract_VM_Version::vm_platform_string() 326 ); 327 } 328 329 // This is the main function to report a fatal error. Only one thread can 330 // call this function, so we don't need to worry about MT-safety. But it's 331 // possible that the error handler itself may crash or die on an internal 332 // error, for example, when the stack/heap is badly damaged. We must be 333 // able to handle recursive errors that happen inside error handler. 334 // 335 // Error reporting is done in several steps. If a crash or internal error 336 // occurred when reporting an error, the nested signal/exception handler 337 // can skip steps that are already (or partially) done. Error reporting will 338 // continue from the next step. This allows us to retrieve and print 339 // information that may be unsafe to get after a fatal error. If it happens, 340 // you may find nested report_and_die() frames when you look at the stack 341 // in a debugger. 342 // 343 // In general, a hang in error handler is much worse than a crash or internal 344 // error, as it's harder to recover from a hang. Deadlock can happen if we 345 // try to grab a lock that is already owned by current thread, or if the 346 // owner is blocked forever (e.g. in os::infinite_sleep()). If possible, the 347 // error handler and all the functions it called should avoid grabbing any 348 // lock. An important thing to notice is that memory allocation needs a lock. 349 // 350 // We should avoid using large stack allocated buffers. Many errors happen 351 // when stack space is already low. Making things even worse is that there 352 // could be nested report_and_die() calls on stack (see above). Only one 353 // thread can report error, so large buffers are statically allocated in data 354 // segment. 355 356 int VMError::_current_step; 357 const char* VMError::_current_step_info; 358 359 volatile jlong VMError::_reporting_start_time = -1; 360 volatile bool VMError::_reporting_did_timeout = false; 361 volatile jlong VMError::_step_start_time = -1; 362 volatile bool VMError::_step_did_timeout = false; 363 364 // Helper, return current timestamp for timeout handling. 365 jlong VMError::get_current_timestamp() { 366 return os::javaTimeNanos(); 367 } 368 // Factor to translate the timestamp to seconds. 369 #define TIMESTAMP_TO_SECONDS_FACTOR (1000 * 1000 * 1000) 370 371 void VMError::record_reporting_start_time() { 372 const jlong now = get_current_timestamp(); 373 Atomic::store(now, &_reporting_start_time); 374 } 375 376 jlong VMError::get_reporting_start_time() { 377 return Atomic::load(&_reporting_start_time); 378 } 379 380 void VMError::record_step_start_time() { 381 const jlong now = get_current_timestamp(); 382 Atomic::store(now, &_step_start_time); 383 } 384 385 jlong VMError::get_step_start_time() { 386 return Atomic::load(&_step_start_time); 387 } 388 389 void VMError::report(outputStream* st, bool _verbose) { 390 391 # define BEGIN if (_current_step == 0) { _current_step = __LINE__; 392 # define STEP(s) } if (_current_step < __LINE__) { _current_step = __LINE__; _current_step_info = s; \ 393 record_step_start_time(); _step_did_timeout = false; 394 # define END } 395 396 // don't allocate large buffer on stack 397 static char buf[O_BUFLEN]; 398 399 BEGIN 400 401 STEP("printing fatal error message") 402 403 st->print_cr("#"); 404 if (should_report_bug(_id)) { 405 st->print_cr("# A fatal error has been detected by the Java Runtime Environment:"); 406 } else { 407 st->print_cr("# There is insufficient memory for the Java " 408 "Runtime Environment to continue."); 409 } 410 411 #ifndef PRODUCT 412 // Error handler self tests 413 414 // test secondary error handling. Test it twice, to test that resetting 415 // error handler after a secondary crash works. 416 STEP("test secondary crash 1") 417 if (_verbose && TestCrashInErrorHandler != 0) { 418 st->print_cr("Will crash now (TestCrashInErrorHandler=" UINTX_FORMAT ")...", 419 TestCrashInErrorHandler); 420 controlled_crash(TestCrashInErrorHandler); 421 } 422 423 STEP("test secondary crash 2") 424 if (_verbose && TestCrashInErrorHandler != 0) { 425 st->print_cr("Will crash now (TestCrashInErrorHandler=" UINTX_FORMAT ")...", 426 TestCrashInErrorHandler); 427 controlled_crash(TestCrashInErrorHandler); 428 } 429 430 // TestUnresponsiveErrorHandler: We want to test both step timeouts and global timeout. 431 // Step to global timeout ratio is 4:1, so in order to be absolutely sure we hit the 432 // global timeout, let's execute the timeout step five times. 433 // See corresponding test in test/runtime/ErrorHandling/TimeoutInErrorHandlingTest.java 434 #define TIMEOUT_TEST_STEP STEP("test unresponsive error reporting step") \ 435 if (_verbose && TestUnresponsiveErrorHandler) { os::infinite_sleep(); } 436 TIMEOUT_TEST_STEP 437 TIMEOUT_TEST_STEP 438 TIMEOUT_TEST_STEP 439 TIMEOUT_TEST_STEP 440 TIMEOUT_TEST_STEP 441 442 STEP("test safefetch in error handler") 443 // test whether it is safe to use SafeFetch32 in Crash Handler. Test twice 444 // to test that resetting the signal handler works correctly. 445 if (_verbose && TestSafeFetchInErrorHandler) { 446 st->print_cr("Will test SafeFetch..."); 447 if (CanUseSafeFetch32()) { 448 int* const invalid_pointer = (int*) get_segfault_address(); 449 const int x = 0x76543210; 450 int i1 = SafeFetch32(invalid_pointer, x); 451 int i2 = SafeFetch32(invalid_pointer, x); 452 if (i1 == x && i2 == x) { 453 st->print_cr("SafeFetch OK."); // Correctly deflected and returned default pattern 454 } else { 455 st->print_cr("??"); 456 } 457 } else { 458 st->print_cr("not possible; skipped."); 459 } 460 } 461 #endif // PRODUCT 462 463 STEP("printing type of error") 464 465 switch(_id) { 466 case OOM_MALLOC_ERROR: 467 case OOM_MMAP_ERROR: 468 if (_size) { 469 st->print("# Native memory allocation "); 470 st->print((_id == (int)OOM_MALLOC_ERROR) ? "(malloc) failed to allocate " : 471 "(mmap) failed to map "); 472 jio_snprintf(buf, sizeof(buf), SIZE_FORMAT, _size); 473 st->print("%s", buf); 474 st->print(" bytes"); 475 if (strlen(_detail_msg) > 0) { 476 st->print(" for "); 477 st->print("%s", _detail_msg); 478 } 479 st->cr(); 480 } else { 481 if (strlen(_detail_msg) > 0) { 482 st->print("# "); 483 st->print_cr("%s", _detail_msg); 484 } 485 } 486 // In error file give some solutions 487 if (_verbose) { 488 print_oom_reasons(st); 489 } else { 490 return; // that's enough for the screen 491 } 492 break; 493 case INTERNAL_ERROR: 494 default: 495 break; 496 } 497 498 STEP("printing exception/signal name") 499 500 st->print_cr("#"); 501 st->print("# "); 502 // Is it an OS exception/signal? 503 if (os::exception_name(_id, buf, sizeof(buf))) { 504 st->print("%s", buf); 505 st->print(" (0x%x)", _id); // signal number 506 st->print(" at pc=" PTR_FORMAT, p2i(_pc)); 507 } else { 508 if (should_report_bug(_id)) { 509 st->print("Internal Error"); 510 } else { 511 st->print("Out of Memory Error"); 512 } 513 if (_filename != NULL && _lineno > 0) { 514 #ifdef PRODUCT 515 // In product mode chop off pathname? 516 char separator = os::file_separator()[0]; 517 const char *p = strrchr(_filename, separator); 518 const char *file = p ? p+1 : _filename; 519 #else 520 const char *file = _filename; 521 #endif 522 st->print(" (%s:%d)", file, _lineno); 523 } else { 524 st->print(" (0x%x)", _id); 525 } 526 } 527 528 STEP("printing current thread and pid") 529 530 // process id, thread id 531 st->print(", pid=%d", os::current_process_id()); 532 st->print(", tid=" UINTX_FORMAT, os::current_thread_id()); 533 st->cr(); 534 535 STEP("printing error message") 536 537 if (should_report_bug(_id)) { // already printed the message. 538 // error message 539 if (strlen(_detail_msg) > 0) { 540 st->print_cr("# %s: %s", _message ? _message : "Error", _detail_msg); 541 } else if (_message) { 542 st->print_cr("# Error: %s", _message); 543 } 544 } 545 546 STEP("printing Java version string") 547 548 report_vm_version(st, buf, sizeof(buf)); 549 550 STEP("printing problematic frame") 551 552 // Print current frame if we have a context (i.e. it's a crash) 553 if (_context) { 554 st->print_cr("# Problematic frame:"); 555 st->print("# "); 556 frame fr = os::fetch_frame_from_context(_context); 557 fr.print_on_error(st, buf, sizeof(buf)); 558 st->cr(); 559 st->print_cr("#"); 560 } 561 562 STEP("printing core file information") 563 st->print("# "); 564 if (CreateCoredumpOnCrash) { 565 if (coredump_status) { 566 st->print("Core dump will be written. Default location: %s", coredump_message); 567 } else { 568 st->print("No core dump will be written. %s", coredump_message); 569 } 570 } else { 571 st->print("CreateCoredumpOnCrash turned off, no core file dumped"); 572 } 573 st->cr(); 574 st->print_cr("#"); 575 576 STEP("printing bug submit message") 577 578 if (should_report_bug(_id) && _verbose) { 579 print_bug_submit_message(st, _thread); 580 } 581 582 STEP("printing summary") 583 584 if (_verbose) { 585 st->cr(); 586 st->print_cr("--------------- S U M M A R Y ------------"); 587 st->cr(); 588 } 589 590 STEP("printing VM option summary") 591 592 if (_verbose) { 593 // VM options 594 Arguments::print_summary_on(st); 595 st->cr(); 596 } 597 598 STEP("printing summary machine and OS info") 599 600 if (_verbose) { 601 os::print_summary_info(st, buf, sizeof(buf)); 602 } 603 604 605 STEP("printing date and time") 606 607 if (_verbose) { 608 os::print_date_and_time(st, buf, sizeof(buf)); 609 } 610 611 STEP("printing thread") 612 613 if (_verbose) { 614 st->cr(); 615 st->print_cr("--------------- T H R E A D ---------------"); 616 st->cr(); 617 } 618 619 STEP("printing current thread") 620 621 // current thread 622 if (_verbose) { 623 if (_thread) { 624 st->print("Current thread (" PTR_FORMAT "): ", p2i(_thread)); 625 _thread->print_on_error(st, buf, sizeof(buf)); 626 st->cr(); 627 } else { 628 st->print_cr("Current thread is native thread"); 629 } 630 st->cr(); 631 } 632 633 STEP("printing current compile task") 634 635 if (_verbose && _thread && _thread->is_Compiler_thread()) { 636 CompilerThread* t = (CompilerThread*)_thread; 637 if (t->task()) { 638 st->cr(); 639 st->print_cr("Current CompileTask:"); 640 t->task()->print_line_on_error(st, buf, sizeof(buf)); 641 st->cr(); 642 } 643 } 644 645 646 STEP("printing stack bounds") 647 648 if (_verbose) { 649 st->print("Stack: "); 650 651 address stack_top; 652 size_t stack_size; 653 654 if (_thread) { 655 stack_top = _thread->stack_base(); 656 stack_size = _thread->stack_size(); 657 } else { 658 stack_top = os::current_stack_base(); 659 stack_size = os::current_stack_size(); 660 } 661 662 address stack_bottom = stack_top - stack_size; 663 st->print("[" PTR_FORMAT "," PTR_FORMAT "]", p2i(stack_bottom), p2i(stack_top)); 664 665 frame fr = _context ? os::fetch_frame_from_context(_context) 666 : os::current_frame(); 667 668 if (fr.sp()) { 669 st->print(", sp=" PTR_FORMAT, p2i(fr.sp())); 670 size_t free_stack_size = pointer_delta(fr.sp(), stack_bottom, 1024); 671 st->print(", free space=" SIZE_FORMAT "k", free_stack_size); 672 } 673 674 st->cr(); 675 } 676 677 STEP("printing native stack") 678 679 if (_verbose) { 680 if (os::platform_print_native_stack(st, _context, buf, sizeof(buf))) { 681 // We have printed the native stack in platform-specific code 682 // Windows/x64 needs special handling. 683 } else { 684 frame fr = _context ? os::fetch_frame_from_context(_context) 685 : os::current_frame(); 686 687 print_native_stack(st, fr, _thread, buf, sizeof(buf)); 688 } 689 } 690 691 STEP("printing Java stack") 692 693 if (_verbose && _thread && _thread->is_Java_thread()) { 694 print_stack_trace(st, (JavaThread*)_thread, buf, sizeof(buf)); 695 } 696 697 STEP("printing target Java thread stack") 698 699 // printing Java thread stack trace if it is involved in GC crash 700 if (_verbose && _thread && (_thread->is_Named_thread())) { 701 JavaThread* jt = ((NamedThread *)_thread)->processed_thread(); 702 if (jt != NULL) { 703 st->print_cr("JavaThread " PTR_FORMAT " (nid = %d) was being processed", p2i(jt), jt->osthread()->thread_id()); 704 print_stack_trace(st, jt, buf, sizeof(buf), true); 705 } 706 } 707 708 STEP("printing siginfo") 709 710 // signal no, signal code, address that caused the fault 711 if (_verbose && _siginfo) { 712 st->cr(); 713 os::print_siginfo(st, _siginfo); 714 st->cr(); 715 } 716 717 STEP("CDS archive access warning") 718 719 // Print an explicit hint if we crashed on access to the CDS archive. 720 if (_verbose && _siginfo) { 721 check_failing_cds_access(st, _siginfo); 722 st->cr(); 723 } 724 725 STEP("printing register info") 726 727 // decode register contents if possible 728 if (_verbose && _context && Universe::is_fully_initialized()) { 729 os::print_register_info(st, _context); 730 st->cr(); 731 } 732 733 STEP("printing registers, top of stack, instructions near pc") 734 735 // registers, top of stack, instructions near pc 736 if (_verbose && _context) { 737 os::print_context(st, _context); 738 st->cr(); 739 } 740 741 STEP("printing code blob if possible") 742 743 if (_verbose && _context) { 744 CodeBlob* cb = CodeCache::find_blob(_pc); 745 if (cb != NULL) { 746 if (Interpreter::contains(_pc)) { 747 // The interpreter CodeBlob is very large so try to print the codelet instead. 748 InterpreterCodelet* codelet = Interpreter::codelet_containing(_pc); 749 if (codelet != NULL) { 750 codelet->print_on(st); 751 Disassembler::decode(codelet->code_begin(), codelet->code_end(), st); 752 } 753 } else { 754 StubCodeDesc* desc = StubCodeDesc::desc_for(_pc); 755 if (desc != NULL) { 756 desc->print_on(st); 757 Disassembler::decode(desc->begin(), desc->end(), st); 758 } else { 759 Disassembler::decode(cb, st); 760 st->cr(); 761 } 762 } 763 } 764 } 765 766 STEP("printing VM operation") 767 768 if (_verbose && _thread && _thread->is_VM_thread()) { 769 VMThread* t = (VMThread*)_thread; 770 VM_Operation* op = t->vm_operation(); 771 if (op) { 772 op->print_on_error(st); 773 st->cr(); 774 st->cr(); 775 } 776 } 777 778 STEP("printing process") 779 780 if (_verbose) { 781 st->cr(); 782 st->print_cr("--------------- P R O C E S S ---------------"); 783 st->cr(); 784 } 785 786 STEP("printing all threads") 787 788 // all threads 789 if (_verbose && _thread) { 790 Threads::print_on_error(st, _thread, buf, sizeof(buf)); 791 st->cr(); 792 } 793 794 STEP("printing VM state") 795 796 if (_verbose) { 797 // Safepoint state 798 st->print("VM state:"); 799 800 if (SafepointSynchronize::is_synchronizing()) st->print("synchronizing"); 801 else if (SafepointSynchronize::is_at_safepoint()) st->print("at safepoint"); 802 else st->print("not at safepoint"); 803 804 // Also see if error occurred during initialization or shutdown 805 if (!Universe::is_fully_initialized()) { 806 st->print(" (not fully initialized)"); 807 } else if (VM_Exit::vm_exited()) { 808 st->print(" (shutting down)"); 809 } else { 810 st->print(" (normal execution)"); 811 } 812 st->cr(); 813 st->cr(); 814 } 815 816 STEP("printing owned locks on error") 817 818 // mutexes/monitors that currently have an owner 819 if (_verbose) { 820 print_owned_locks_on_error(st); 821 st->cr(); 822 } 823 824 STEP("printing number of OutOfMemoryError and StackOverflow exceptions") 825 826 if (_verbose && Exceptions::has_exception_counts()) { 827 st->print_cr("OutOfMemory and StackOverflow Exception counts:"); 828 Exceptions::print_exception_counts_on_error(st); 829 st->cr(); 830 } 831 832 STEP("printing compressed oops mode") 833 834 if (_verbose && UseCompressedOops) { 835 Universe::print_compressed_oops_mode(st); 836 if (UseCompressedClassPointers) { 837 Metaspace::print_compressed_class_space(st); 838 } 839 st->cr(); 840 } 841 842 STEP("printing heap information") 843 844 if (_verbose && Universe::is_fully_initialized()) { 845 Universe::heap()->print_on_error(st); 846 st->cr(); 847 st->print_cr("Polling page: " INTPTR_FORMAT, p2i(os::get_polling_page())); 848 st->cr(); 849 } 850 851 STEP("printing code cache information") 852 853 if (_verbose && Universe::is_fully_initialized()) { 854 // print code cache information before vm abort 855 CodeCache::print_summary(st); 856 st->cr(); 857 } 858 859 STEP("printing ring buffers") 860 861 if (_verbose) { 862 Events::print_all(st); 863 st->cr(); 864 } 865 866 STEP("printing dynamic libraries") 867 868 if (_verbose) { 869 // dynamic libraries, or memory map 870 os::print_dll_info(st); 871 st->cr(); 872 } 873 874 STEP("printing VM options") 875 876 if (_verbose) { 877 // VM options 878 Arguments::print_on(st); 879 st->cr(); 880 } 881 882 STEP("printing warning if internal testing API used") 883 884 if (WhiteBox::used()) { 885 st->print_cr("Unsupported internal testing APIs have been used."); 886 st->cr(); 887 } 888 889 STEP("printing log configuration") 890 if (_verbose){ 891 st->print_cr("Logging:"); 892 LogConfiguration::describe_current_configuration(st); 893 st->cr(); 894 } 895 896 STEP("printing all environment variables") 897 898 if (_verbose) { 899 os::print_environment_variables(st, env_list); 900 st->cr(); 901 } 902 903 STEP("printing signal handlers") 904 905 if (_verbose) { 906 os::print_signal_handlers(st, buf, sizeof(buf)); 907 st->cr(); 908 } 909 910 STEP("Native Memory Tracking") 911 if (_verbose) { 912 MemTracker::error_report(st); 913 } 914 915 STEP("printing system") 916 917 if (_verbose) { 918 st->cr(); 919 st->print_cr("--------------- S Y S T E M ---------------"); 920 st->cr(); 921 } 922 923 STEP("printing OS information") 924 925 if (_verbose) { 926 os::print_os_info(st); 927 st->cr(); 928 } 929 930 STEP("printing CPU info") 931 if (_verbose) { 932 os::print_cpu_info(st, buf, sizeof(buf)); 933 st->cr(); 934 } 935 936 STEP("printing memory info") 937 938 if (_verbose) { 939 os::print_memory_info(st); 940 st->cr(); 941 } 942 943 STEP("printing internal vm info") 944 945 if (_verbose) { 946 st->print_cr("vm_info: %s", Abstract_VM_Version::internal_vm_info_string()); 947 st->cr(); 948 } 949 950 // print a defined marker to show that error handling finished correctly. 951 STEP("printing end marker") 952 953 if (_verbose) { 954 st->print_cr("END."); 955 } 956 957 END 958 959 # undef BEGIN 960 # undef STEP 961 # undef END 962 } 963 964 // Report for the vm_info_cmd. This prints out the information above omitting 965 // crash and thread specific information. If output is added above, it should be added 966 // here also, if it is safe to call during a running process. 967 void VMError::print_vm_info(outputStream* st) { 968 969 char buf[O_BUFLEN]; 970 report_vm_version(st, buf, sizeof(buf)); 971 972 // STEP("printing summary") 973 974 st->cr(); 975 st->print_cr("--------------- S U M M A R Y ------------"); 976 st->cr(); 977 978 // STEP("printing VM option summary") 979 980 // VM options 981 Arguments::print_summary_on(st); 982 st->cr(); 983 984 // STEP("printing summary machine and OS info") 985 986 os::print_summary_info(st, buf, sizeof(buf)); 987 988 // STEP("printing date and time") 989 990 os::print_date_and_time(st, buf, sizeof(buf)); 991 992 // Skip: STEP("printing thread") 993 994 // STEP("printing process") 995 996 st->cr(); 997 st->print_cr("--------------- P R O C E S S ---------------"); 998 st->cr(); 999 1000 // STEP("printing number of OutOfMemoryError and StackOverflow exceptions") 1001 1002 if (Exceptions::has_exception_counts()) { 1003 st->print_cr("OutOfMemory and StackOverflow Exception counts:"); 1004 Exceptions::print_exception_counts_on_error(st); 1005 st->cr(); 1006 } 1007 1008 // STEP("printing compressed oops mode") 1009 1010 if (UseCompressedOops) { 1011 Universe::print_compressed_oops_mode(st); 1012 if (UseCompressedClassPointers) { 1013 Metaspace::print_compressed_class_space(st); 1014 } 1015 st->cr(); 1016 } 1017 1018 // STEP("printing heap information") 1019 1020 if (Universe::is_fully_initialized()) { 1021 MutexLocker hl(Heap_lock); 1022 Universe::heap()->print_on_error(st); 1023 st->cr(); 1024 st->print_cr("Polling page: " INTPTR_FORMAT, p2i(os::get_polling_page())); 1025 st->cr(); 1026 } 1027 1028 // STEP("printing code cache information") 1029 1030 if (Universe::is_fully_initialized()) { 1031 // print code cache information before vm abort 1032 CodeCache::print_summary(st); 1033 st->cr(); 1034 } 1035 1036 // STEP("printing ring buffers") 1037 1038 Events::print_all(st); 1039 st->cr(); 1040 1041 // STEP("printing dynamic libraries") 1042 1043 // dynamic libraries, or memory map 1044 os::print_dll_info(st); 1045 st->cr(); 1046 1047 // STEP("printing VM options") 1048 1049 // VM options 1050 Arguments::print_on(st); 1051 st->cr(); 1052 1053 // STEP("printing warning if internal testing API used") 1054 1055 if (WhiteBox::used()) { 1056 st->print_cr("Unsupported internal testing APIs have been used."); 1057 st->cr(); 1058 } 1059 1060 // STEP("printing log configuration") 1061 st->print_cr("Logging:"); 1062 LogConfiguration::describe(st); 1063 st->cr(); 1064 1065 // STEP("printing all environment variables") 1066 1067 os::print_environment_variables(st, env_list); 1068 st->cr(); 1069 1070 // STEP("printing signal handlers") 1071 1072 os::print_signal_handlers(st, buf, sizeof(buf)); 1073 st->cr(); 1074 1075 // STEP("Native Memory Tracking") 1076 1077 MemTracker::error_report(st); 1078 1079 // STEP("printing system") 1080 1081 st->cr(); 1082 st->print_cr("--------------- S Y S T E M ---------------"); 1083 st->cr(); 1084 1085 // STEP("printing OS information") 1086 1087 os::print_os_info(st); 1088 st->cr(); 1089 1090 // STEP("printing CPU info") 1091 1092 os::print_cpu_info(st, buf, sizeof(buf)); 1093 st->cr(); 1094 1095 // STEP("printing memory info") 1096 1097 os::print_memory_info(st); 1098 st->cr(); 1099 1100 // STEP("printing internal vm info") 1101 1102 st->print_cr("vm_info: %s", Abstract_VM_Version::internal_vm_info_string()); 1103 st->cr(); 1104 1105 // print a defined marker to show that error handling finished correctly. 1106 // STEP("printing end marker") 1107 1108 st->print_cr("END."); 1109 } 1110 1111 volatile intptr_t VMError::first_error_tid = -1; 1112 1113 // An error could happen before tty is initialized or after it has been 1114 // destroyed. 1115 // Please note: to prevent large stack allocations, the log- and 1116 // output-stream use a global scratch buffer for format printing. 1117 // (see VmError::report_and_die(). Access to those streams is synchronized 1118 // in VmError::report_and_die() - there is only one reporting thread at 1119 // any given time. 1120 fdStream VMError::out(defaultStream::output_fd()); 1121 fdStream VMError::log; // error log used by VMError::report_and_die() 1122 1123 /** Expand a pattern into a buffer starting at pos and open a file using constructed path */ 1124 static int expand_and_open(const char* pattern, char* buf, size_t buflen, size_t pos) { 1125 int fd = -1; 1126 if (Arguments::copy_expand_pid(pattern, strlen(pattern), &buf[pos], buflen - pos)) { 1127 // the O_EXCL flag will cause the open to fail if the file exists 1128 fd = open(buf, O_RDWR | O_CREAT | O_EXCL, 0666); 1129 } 1130 return fd; 1131 } 1132 1133 /** 1134 * Construct file name for a log file and return it's file descriptor. 1135 * Name and location depends on pattern, default_pattern params and access 1136 * permissions. 1137 */ 1138 static int prepare_log_file(const char* pattern, const char* default_pattern, char* buf, size_t buflen) { 1139 int fd = -1; 1140 1141 // If possible, use specified pattern to construct log file name 1142 if (pattern != NULL) { 1143 fd = expand_and_open(pattern, buf, buflen, 0); 1144 } 1145 1146 // Either user didn't specify, or the user's location failed, 1147 // so use the default name in the current directory 1148 if (fd == -1) { 1149 const char* cwd = os::get_current_directory(buf, buflen); 1150 if (cwd != NULL) { 1151 size_t pos = strlen(cwd); 1152 int fsep_len = jio_snprintf(&buf[pos], buflen-pos, "%s", os::file_separator()); 1153 pos += fsep_len; 1154 if (fsep_len > 0) { 1155 fd = expand_and_open(default_pattern, buf, buflen, pos); 1156 } 1157 } 1158 } 1159 1160 // try temp directory if it exists. 1161 if (fd == -1) { 1162 const char* tmpdir = os::get_temp_directory(); 1163 if (tmpdir != NULL && strlen(tmpdir) > 0) { 1164 int pos = jio_snprintf(buf, buflen, "%s%s", tmpdir, os::file_separator()); 1165 if (pos > 0) { 1166 fd = expand_and_open(default_pattern, buf, buflen, pos); 1167 } 1168 } 1169 } 1170 1171 return fd; 1172 } 1173 1174 int VMError::_id; 1175 const char* VMError::_message; 1176 char VMError::_detail_msg[1024]; 1177 Thread* VMError::_thread; 1178 address VMError::_pc; 1179 void* VMError::_siginfo; 1180 void* VMError::_context; 1181 const char* VMError::_filename; 1182 int VMError::_lineno; 1183 size_t VMError::_size; 1184 1185 void VMError::report_and_die(Thread* thread, unsigned int sig, address pc, void* siginfo, 1186 void* context, const char* detail_fmt, ...) 1187 { 1188 va_list detail_args; 1189 va_start(detail_args, detail_fmt); 1190 report_and_die(sig, NULL, detail_fmt, detail_args, thread, pc, siginfo, context, NULL, 0, 0); 1191 va_end(detail_args); 1192 } 1193 1194 void VMError::report_and_die(Thread* thread, unsigned int sig, address pc, void* siginfo, void* context) 1195 { 1196 report_and_die(thread, sig, pc, siginfo, context, "%s", ""); 1197 } 1198 1199 void VMError::report_and_die(const char* message, const char* detail_fmt, ...) 1200 { 1201 va_list detail_args; 1202 va_start(detail_args, detail_fmt); 1203 report_and_die(INTERNAL_ERROR, message, detail_fmt, detail_args, NULL, NULL, NULL, NULL, NULL, 0, 0); 1204 va_end(detail_args); 1205 } 1206 1207 void VMError::report_and_die(const char* message) 1208 { 1209 report_and_die(message, "%s", ""); 1210 } 1211 1212 void VMError::report_and_die(Thread* thread, const char* filename, int lineno, const char* message, 1213 const char* detail_fmt, va_list detail_args) 1214 { 1215 report_and_die(INTERNAL_ERROR, message, detail_fmt, detail_args, thread, NULL, NULL, NULL, filename, lineno, 0); 1216 } 1217 1218 void VMError::report_and_die(Thread* thread, const char* filename, int lineno, size_t size, 1219 VMErrorType vm_err_type, const char* detail_fmt, va_list detail_args) { 1220 report_and_die(vm_err_type, NULL, detail_fmt, detail_args, thread, NULL, NULL, NULL, filename, lineno, size); 1221 } 1222 1223 void VMError::report_and_die(int id, const char* message, const char* detail_fmt, va_list detail_args, 1224 Thread* thread, address pc, void* siginfo, void* context, const char* filename, 1225 int lineno, size_t size) 1226 { 1227 // Don't allocate large buffer on stack 1228 static char buffer[O_BUFLEN]; 1229 out.set_scratch_buffer(buffer, sizeof(buffer)); 1230 log.set_scratch_buffer(buffer, sizeof(buffer)); 1231 1232 // How many errors occurred in error handler when reporting first_error. 1233 static int recursive_error_count; 1234 1235 // We will first print a brief message to standard out (verbose = false), 1236 // then save detailed information in log file (verbose = true). 1237 static bool out_done = false; // done printing to standard out 1238 static bool log_done = false; // done saving error log 1239 static bool transmit_report_done = false; // done error reporting 1240 1241 if (SuppressFatalErrorMessage) { 1242 os::abort(CreateCoredumpOnCrash); 1243 } 1244 intptr_t mytid = os::current_thread_id(); 1245 if (first_error_tid == -1 && 1246 Atomic::cmpxchg_ptr(mytid, &first_error_tid, -1) == -1) { 1247 1248 // Initialize time stamps to use the same base. 1249 out.time_stamp().update_to(1); 1250 log.time_stamp().update_to(1); 1251 1252 _id = id; 1253 _message = message; 1254 _thread = thread; 1255 _pc = pc; 1256 _siginfo = siginfo; 1257 _context = context; 1258 _filename = filename; 1259 _lineno = lineno; 1260 _size = size; 1261 jio_vsnprintf(_detail_msg, sizeof(_detail_msg), detail_fmt, detail_args); 1262 1263 // first time 1264 set_error_reported(); 1265 1266 reporting_started(); 1267 record_reporting_start_time(); 1268 1269 if (ShowMessageBoxOnError || PauseAtExit) { 1270 show_message_box(buffer, sizeof(buffer)); 1271 1272 // User has asked JVM to abort. Reset ShowMessageBoxOnError so the 1273 // WatcherThread can kill JVM if the error handler hangs. 1274 ShowMessageBoxOnError = false; 1275 } 1276 1277 os::check_dump_limit(buffer, sizeof(buffer)); 1278 1279 // reset signal handlers or exception filter; make sure recursive crashes 1280 // are handled properly. 1281 reset_signal_handlers(); 1282 1283 TRACE_VM_ERROR(); 1284 1285 } else { 1286 // If UseOsErrorReporting we call this for each level of the call stack 1287 // while searching for the exception handler. Only the first level needs 1288 // to be reported. 1289 if (UseOSErrorReporting && log_done) return; 1290 1291 // This is not the first error, see if it happened in a different thread 1292 // or in the same thread during error reporting. 1293 if (first_error_tid != mytid) { 1294 char msgbuf[64]; 1295 jio_snprintf(msgbuf, sizeof(msgbuf), 1296 "[thread " INTX_FORMAT " also had an error]", 1297 mytid); 1298 out.print_raw_cr(msgbuf); 1299 1300 // error reporting is not MT-safe, block current thread 1301 os::infinite_sleep(); 1302 1303 } else { 1304 if (recursive_error_count++ > 30) { 1305 out.print_raw_cr("[Too many errors, abort]"); 1306 os::die(); 1307 } 1308 1309 outputStream* const st = log.is_open() ? &log : &out; 1310 st->cr(); 1311 1312 // Timeout handling. 1313 if (_step_did_timeout) { 1314 // The current step had a timeout. Lets continue reporting with the next step. 1315 st->print_raw("[timeout occurred during error reporting in step \""); 1316 st->print_raw(_current_step_info); 1317 st->print_cr("\"] after " INT64_FORMAT " s.", 1318 (int64_t) 1319 ((get_current_timestamp() - _step_start_time) / TIMESTAMP_TO_SECONDS_FACTOR)); 1320 } else if (_reporting_did_timeout) { 1321 // We hit ErrorLogTimeout. Reporting will stop altogether. Let's wrap things 1322 // up, the process is about to be stopped by the WatcherThread. 1323 st->print_cr("------ Timeout during error reporting after " INT64_FORMAT " s. ------", 1324 (int64_t) 1325 ((get_current_timestamp() - _reporting_start_time) / TIMESTAMP_TO_SECONDS_FACTOR)); 1326 st->flush(); 1327 // Watcherthread is about to call os::die. Lets just wait. 1328 os::infinite_sleep(); 1329 } else { 1330 // Crash or assert during error reporting. Lets continue reporting with the next step. 1331 jio_snprintf(buffer, sizeof(buffer), 1332 "[error occurred during error reporting (%s), id 0x%x]", 1333 _current_step_info, _id); 1334 st->print_raw_cr(buffer); 1335 st->cr(); 1336 } 1337 } 1338 } 1339 1340 // print to screen 1341 if (!out_done) { 1342 report(&out, false); 1343 1344 out_done = true; 1345 1346 _current_step = 0; 1347 _current_step_info = ""; 1348 } 1349 1350 // print to error log file 1351 if (!log_done) { 1352 // see if log file is already open 1353 if (!log.is_open()) { 1354 // open log file 1355 int fd = prepare_log_file(ErrorFile, "hs_err_pid%p.log", buffer, sizeof(buffer)); 1356 if (fd != -1) { 1357 out.print_raw("# An error report file with more information is saved as:\n# "); 1358 out.print_raw_cr(buffer); 1359 1360 log.set_fd(fd); 1361 } else { 1362 out.print_raw_cr("# Can not save log file, dump to screen.."); 1363 log.set_fd(defaultStream::output_fd()); 1364 /* Error reporting currently needs dumpfile. 1365 * Maybe implement direct streaming in the future.*/ 1366 transmit_report_done = true; 1367 } 1368 } 1369 1370 report(&log, true); 1371 log_done = true; 1372 _current_step = 0; 1373 _current_step_info = ""; 1374 1375 // Run error reporting to determine whether or not to report the crash. 1376 if (!transmit_report_done && should_report_bug(_id)) { 1377 transmit_report_done = true; 1378 const int fd2 = ::dup(log.fd()); 1379 if (fd2 != -1) { 1380 FILE* const hs_err = ::fdopen(fd2, "r"); 1381 if (NULL != hs_err) { 1382 ErrorReporter er; 1383 er.call(hs_err, buffer, O_BUFLEN); 1384 ::fclose(hs_err); 1385 } 1386 } 1387 } 1388 1389 if (log.fd() != defaultStream::output_fd()) { 1390 close(log.fd()); 1391 } 1392 1393 log.set_fd(-1); 1394 } 1395 1396 static bool skip_replay = ReplayCompiles; // Do not overwrite file during replay 1397 if (DumpReplayDataOnError && _thread && _thread->is_Compiler_thread() && !skip_replay) { 1398 skip_replay = true; 1399 ciEnv* env = ciEnv::current(); 1400 if (env != NULL) { 1401 int fd = prepare_log_file(ReplayDataFile, "replay_pid%p.log", buffer, sizeof(buffer)); 1402 if (fd != -1) { 1403 FILE* replay_data_file = os::open(fd, "w"); 1404 if (replay_data_file != NULL) { 1405 fileStream replay_data_stream(replay_data_file, /*need_close=*/true); 1406 env->dump_replay_data_unsafe(&replay_data_stream); 1407 out.print_raw("#\n# Compiler replay data is saved as:\n# "); 1408 out.print_raw_cr(buffer); 1409 } else { 1410 int e = errno; 1411 out.print_raw("#\n# Can't open file to dump replay data. Error: "); 1412 out.print_raw_cr(os::strerror(e)); 1413 } 1414 } 1415 } 1416 } 1417 1418 static bool skip_bug_url = !should_report_bug(_id); 1419 if (!skip_bug_url) { 1420 skip_bug_url = true; 1421 1422 out.print_raw_cr("#"); 1423 print_bug_submit_message(&out, _thread); 1424 } 1425 1426 static bool skip_OnError = false; 1427 if (!skip_OnError && OnError && OnError[0]) { 1428 skip_OnError = true; 1429 1430 // Flush output and finish logs before running OnError commands. 1431 ostream_abort(); 1432 1433 out.print_raw_cr("#"); 1434 out.print_raw ("# -XX:OnError=\""); 1435 out.print_raw (OnError); 1436 out.print_raw_cr("\""); 1437 1438 char* cmd; 1439 const char* ptr = OnError; 1440 while ((cmd = next_OnError_command(buffer, sizeof(buffer), &ptr)) != NULL){ 1441 out.print_raw ("# Executing "); 1442 #if defined(LINUX) || defined(_ALLBSD_SOURCE) 1443 out.print_raw ("/bin/sh -c "); 1444 #elif defined(SOLARIS) 1445 out.print_raw ("/usr/bin/sh -c "); 1446 #elif defined(WINDOWS) 1447 out.print_raw ("cmd /C "); 1448 #endif 1449 out.print_raw ("\""); 1450 out.print_raw (cmd); 1451 out.print_raw_cr("\" ..."); 1452 1453 if (os::fork_and_exec(cmd) < 0) { 1454 out.print_cr("os::fork_and_exec failed: %s (%s=%d)", 1455 os::strerror(errno), os::errno_name(errno), errno); 1456 } 1457 } 1458 1459 // done with OnError 1460 OnError = NULL; 1461 } 1462 1463 if (!UseOSErrorReporting) { 1464 // os::abort() will call abort hooks, try it first. 1465 static bool skip_os_abort = false; 1466 if (!skip_os_abort) { 1467 skip_os_abort = true; 1468 bool dump_core = should_report_bug(_id); 1469 os::abort(dump_core && CreateCoredumpOnCrash, _siginfo, _context); 1470 } 1471 1472 // if os::abort() doesn't abort, try os::die(); 1473 os::die(); 1474 } 1475 } 1476 1477 /* 1478 * OnOutOfMemoryError scripts/commands executed while VM is a safepoint - this 1479 * ensures utilities such as jmap can observe the process is a consistent state. 1480 */ 1481 class VM_ReportJavaOutOfMemory : public VM_Operation { 1482 private: 1483 const char* _message; 1484 public: 1485 VM_ReportJavaOutOfMemory(const char* message) { _message = message; } 1486 VMOp_Type type() const { return VMOp_ReportJavaOutOfMemory; } 1487 void doit(); 1488 }; 1489 1490 void VM_ReportJavaOutOfMemory::doit() { 1491 // Don't allocate large buffer on stack 1492 static char buffer[O_BUFLEN]; 1493 1494 tty->print_cr("#"); 1495 tty->print_cr("# java.lang.OutOfMemoryError: %s", _message); 1496 tty->print_cr("# -XX:OnOutOfMemoryError=\"%s\"", OnOutOfMemoryError); 1497 1498 // make heap parsability 1499 Universe::heap()->ensure_parsability(false); // no need to retire TLABs 1500 1501 char* cmd; 1502 const char* ptr = OnOutOfMemoryError; 1503 while ((cmd = next_OnError_command(buffer, sizeof(buffer), &ptr)) != NULL){ 1504 tty->print("# Executing "); 1505 #if defined(LINUX) 1506 tty->print ("/bin/sh -c "); 1507 #elif defined(SOLARIS) 1508 tty->print ("/usr/bin/sh -c "); 1509 #endif 1510 tty->print_cr("\"%s\"...", cmd); 1511 1512 if (os::fork_and_exec(cmd) < 0) { 1513 tty->print_cr("os::fork_and_exec failed: %s (%s=%d)", 1514 os::strerror(errno), os::errno_name(errno), errno); 1515 } 1516 } 1517 } 1518 1519 void VMError::report_java_out_of_memory(const char* message) { 1520 if (OnOutOfMemoryError && OnOutOfMemoryError[0]) { 1521 MutexLocker ml(Heap_lock); 1522 VM_ReportJavaOutOfMemory op(message); 1523 VMThread::execute(&op); 1524 } 1525 } 1526 1527 void VMError::show_message_box(char *buf, int buflen) { 1528 bool yes; 1529 do { 1530 error_string(buf, buflen); 1531 yes = os::start_debugging(buf,buflen); 1532 } while (yes); 1533 } 1534 1535 // Timeout handling: check if a timeout happened (either a single step did 1536 // timeout or the whole of error reporting hit ErrorLogTimeout). Interrupt 1537 // the reporting thread if that is the case. 1538 bool VMError::check_timeout() { 1539 1540 if (ErrorLogTimeout == 0) { 1541 return false; 1542 } 1543 1544 // Do not check for timeouts if we still have a message box to show to the 1545 // user or if there are OnError handlers to be run. 1546 if (ShowMessageBoxOnError 1547 || (OnError != NULL && OnError[0] != '\0') 1548 || Arguments::abort_hook() != NULL) { 1549 return false; 1550 } 1551 1552 const jlong reporting_start_time_l = get_reporting_start_time(); 1553 const jlong now = get_current_timestamp(); 1554 // Timestamp is stored in nanos. 1555 if (reporting_start_time_l > 0) { 1556 const jlong end = reporting_start_time_l + (jlong)ErrorLogTimeout * TIMESTAMP_TO_SECONDS_FACTOR; 1557 if (end <= now) { 1558 _reporting_did_timeout = true; 1559 interrupt_reporting_thread(); 1560 return true; // global timeout 1561 } 1562 } 1563 1564 const jlong step_start_time_l = get_step_start_time(); 1565 if (step_start_time_l > 0) { 1566 // A step times out after a quarter of the total timeout. Steps are mostly fast unless they 1567 // hang for some reason, so this simple rule allows for three hanging step and still 1568 // hopefully leaves time enough for the rest of the steps to finish. 1569 const jlong end = step_start_time_l + (jlong)ErrorLogTimeout * TIMESTAMP_TO_SECONDS_FACTOR / 4; 1570 if (end <= now) { 1571 _step_did_timeout = true; 1572 interrupt_reporting_thread(); 1573 return false; // (Not a global timeout) 1574 } 1575 } 1576 1577 return false; 1578 1579 } 1580