1 /* 2 * Copyright (c) 2003, 2012, 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 "precompiled.hpp" 26 #include "compiler/compileBroker.hpp" 27 #include "gc_interface/collectedHeap.hpp" 28 #include "prims/whitebox.hpp" 29 #include "runtime/arguments.hpp" 30 #include "runtime/frame.inline.hpp" 31 #include "runtime/init.hpp" 32 #include "runtime/os.hpp" 33 #include "runtime/thread.hpp" 34 #include "runtime/vmThread.hpp" 35 #include "runtime/vm_operations.hpp" 36 #include "services/memTracker.hpp" 37 #include "utilities/debug.hpp" 38 #include "utilities/decoder.hpp" 39 #include "utilities/defaultStream.hpp" 40 #include "utilities/errorReporter.hpp" 41 #include "utilities/events.hpp" 42 #include "utilities/top.hpp" 43 #include "utilities/vmError.hpp" 44 45 // List of environment variables that should be reported in error log file. 46 const char *env_list[] = { 47 // All platforms 48 "JAVA_HOME", "JRE_HOME", "JAVA_TOOL_OPTIONS", "_JAVA_OPTIONS", "CLASSPATH", 49 "JAVA_COMPILER", "PATH", "USERNAME", 50 51 // Env variables that are defined on Solaris/Linux/BSD 52 "LD_LIBRARY_PATH", "LD_PRELOAD", "SHELL", "DISPLAY", 53 "HOSTTYPE", "OSTYPE", "ARCH", "MACHTYPE", 54 55 // defined on Linux 56 "LD_ASSUME_KERNEL", "_JAVA_SR_SIGNUM", 57 58 // defined on Darwin 59 "DYLD_LIBRARY_PATH", "DYLD_FALLBACK_LIBRARY_PATH", 60 "DYLD_FRAMEWORK_PATH", "DYLD_FALLBACK_FRAMEWORK_PATH", 61 "DYLD_INSERT_LIBRARIES", 62 63 // defined on Windows 64 "OS", "PROCESSOR_IDENTIFIER", "_ALT_JAVA_HOME_DIR", 65 66 (const char *)0 67 }; 68 69 // Fatal error handler for internal errors and crashes. 70 // 71 // The default behavior of fatal error handler is to print a brief message 72 // to standard out (defaultStream::output_fd()), then save detailed information 73 // into an error report file (hs_err_pid<pid>.log) and abort VM. If multiple 74 // threads are having troubles at the same time, only one error is reported. 75 // The thread that is reporting error will abort VM when it is done, all other 76 // threads are blocked forever inside report_and_die(). 77 78 // Constructor for crashes 79 VMError::VMError(Thread* thread, unsigned int sig, address pc, void* siginfo, void* context) { 80 _thread = thread; 81 _id = sig; 82 _pc = pc; 83 _siginfo = siginfo; 84 _context = context; 85 86 _verbose = false; 87 _current_step = 0; 88 _current_step_info = NULL; 89 90 _message = NULL; 91 _detail_msg = NULL; 92 _filename = NULL; 93 _lineno = 0; 94 95 _size = 0; 96 } 97 98 // Constructor for internal errors 99 VMError::VMError(Thread* thread, const char* filename, int lineno, 100 const char* message, const char * detail_msg) 101 { 102 _thread = thread; 103 _id = internal_error; // Value that's not an OS exception/signal 104 _filename = filename; 105 _lineno = lineno; 106 _message = message; 107 _detail_msg = detail_msg; 108 109 _verbose = false; 110 _current_step = 0; 111 _current_step_info = NULL; 112 113 _pc = NULL; 114 _siginfo = NULL; 115 _context = NULL; 116 117 _size = 0; 118 } 119 120 // Constructor for OOM errors 121 VMError::VMError(Thread* thread, const char* filename, int lineno, size_t size, 122 const char* message) { 123 _thread = thread; 124 _id = oom_error; // Value that's not an OS exception/signal 125 _filename = filename; 126 _lineno = lineno; 127 _message = message; 128 _detail_msg = NULL; 129 130 _verbose = false; 131 _current_step = 0; 132 _current_step_info = NULL; 133 134 _pc = NULL; 135 _siginfo = NULL; 136 _context = NULL; 137 138 _size = size; 139 } 140 141 142 // Constructor for non-fatal errors 143 VMError::VMError(const char* message) { 144 _thread = NULL; 145 _id = internal_error; // Value that's not an OS exception/signal 146 _filename = NULL; 147 _lineno = 0; 148 _message = message; 149 _detail_msg = NULL; 150 151 _verbose = false; 152 _current_step = 0; 153 _current_step_info = NULL; 154 155 _pc = NULL; 156 _siginfo = NULL; 157 _context = NULL; 158 159 _size = 0; 160 } 161 162 // -XX:OnError=<string>, where <string> can be a list of commands, separated 163 // by ';'. "%p" is replaced by current process id (pid); "%%" is replaced by 164 // a single "%". Some examples: 165 // 166 // -XX:OnError="pmap %p" // show memory map 167 // -XX:OnError="gcore %p; dbx - %p" // dump core and launch debugger 168 // -XX:OnError="cat hs_err_pid%p.log | mail my_email@sun.com" 169 // -XX:OnError="kill -9 %p" // ?#!@# 170 171 // A simple parser for -XX:OnError, usage: 172 // ptr = OnError; 173 // while ((cmd = next_OnError_command(buffer, sizeof(buffer), &ptr) != NULL) 174 // ... ... 175 static char* next_OnError_command(char* buf, int buflen, const char** ptr) { 176 if (ptr == NULL || *ptr == NULL) return NULL; 177 178 const char* cmd = *ptr; 179 180 // skip leading blanks or ';' 181 while (*cmd == ' ' || *cmd == ';') cmd++; 182 183 if (*cmd == '\0') return NULL; 184 185 const char * cmdend = cmd; 186 while (*cmdend != '\0' && *cmdend != ';') cmdend++; 187 188 Arguments::copy_expand_pid(cmd, cmdend - cmd, buf, buflen); 189 190 *ptr = (*cmdend == '\0' ? cmdend : cmdend + 1); 191 return buf; 192 } 193 194 195 static void print_bug_submit_message(outputStream *out, Thread *thread) { 196 if (out == NULL) return; 197 out->print_raw_cr("# If you would like to submit a bug report, please visit:"); 198 out->print_raw ("# "); 199 out->print_raw_cr(Arguments::java_vendor_url_bug()); 200 // If the crash is in native code, encourage user to submit a bug to the 201 // provider of that code. 202 if (thread && thread->is_Java_thread() && 203 !thread->is_hidden_from_external_view()) { 204 JavaThread* jt = (JavaThread*)thread; 205 if (jt->thread_state() == _thread_in_native) { 206 out->print_cr("# The crash happened outside the Java Virtual Machine in native code.\n# See problematic frame for where to report the bug."); 207 } 208 } 209 out->print_raw_cr("#"); 210 } 211 212 bool VMError::coredump_status; 213 char VMError::coredump_message[O_BUFLEN]; 214 215 void VMError::report_coredump_status(const char* message, bool status) { 216 coredump_status = status; 217 strncpy(coredump_message, message, sizeof(coredump_message)); 218 coredump_message[sizeof(coredump_message)-1] = 0; 219 } 220 221 222 // Return a string to describe the error 223 char* VMError::error_string(char* buf, int buflen) { 224 char signame_buf[64]; 225 const char *signame = os::exception_name(_id, signame_buf, sizeof(signame_buf)); 226 227 if (signame) { 228 jio_snprintf(buf, buflen, 229 "%s (0x%x) at pc=" PTR_FORMAT ", pid=%d, tid=" UINTX_FORMAT, 230 signame, _id, _pc, 231 os::current_process_id(), os::current_thread_id()); 232 } else if (_filename != NULL && _lineno > 0) { 233 // skip directory names 234 char separator = os::file_separator()[0]; 235 const char *p = strrchr(_filename, separator); 236 int n = jio_snprintf(buf, buflen, 237 "Internal Error at %s:%d, pid=%d, tid=" UINTX_FORMAT, 238 p ? p + 1 : _filename, _lineno, 239 os::current_process_id(), os::current_thread_id()); 240 if (n >= 0 && n < buflen && _message) { 241 if (_detail_msg) { 242 jio_snprintf(buf + n, buflen - n, "%s%s: %s", 243 os::line_separator(), _message, _detail_msg); 244 } else { 245 jio_snprintf(buf + n, buflen - n, "%sError: %s", 246 os::line_separator(), _message); 247 } 248 } 249 } else { 250 jio_snprintf(buf, buflen, 251 "Internal Error (0x%x), pid=%d, tid=" UINTX_FORMAT, 252 _id, os::current_process_id(), os::current_thread_id()); 253 } 254 255 return buf; 256 } 257 258 void VMError::print_stack_trace(outputStream* st, JavaThread* jt, 259 char* buf, int buflen, bool verbose) { 260 #ifdef ZERO 261 if (jt->zero_stack()->sp() && jt->top_zero_frame()) { 262 // StackFrameStream uses the frame anchor, which may not have 263 // been set up. This can be done at any time in Zero, however, 264 // so if it hasn't been set up then we just set it up now and 265 // clear it again when we're done. 266 bool has_last_Java_frame = jt->has_last_Java_frame(); 267 if (!has_last_Java_frame) 268 jt->set_last_Java_frame(); 269 st->print("Java frames:"); 270 271 // If the top frame is a Shark frame and the frame anchor isn't 272 // set up then it's possible that the information in the frame 273 // is garbage: it could be from a previous decache, or it could 274 // simply have never been written. So we print a warning... 275 StackFrameStream sfs(jt); 276 if (!has_last_Java_frame && !sfs.is_done()) { 277 if (sfs.current()->zeroframe()->is_shark_frame()) { 278 st->print(" (TOP FRAME MAY BE JUNK)"); 279 } 280 } 281 st->cr(); 282 283 // Print the frames 284 for(int i = 0; !sfs.is_done(); sfs.next(), i++) { 285 sfs.current()->zero_print_on_error(i, st, buf, buflen); 286 st->cr(); 287 } 288 289 // Reset the frame anchor if necessary 290 if (!has_last_Java_frame) 291 jt->reset_last_Java_frame(); 292 } 293 #else 294 if (jt->has_last_Java_frame()) { 295 st->print_cr("Java frames: (J=compiled Java code, j=interpreted, Vv=VM code)"); 296 for(StackFrameStream sfs(jt); !sfs.is_done(); sfs.next()) { 297 sfs.current()->print_on_error(st, buf, buflen, verbose); 298 st->cr(); 299 } 300 } 301 #endif // ZERO 302 } 303 304 // This is the main function to report a fatal error. Only one thread can 305 // call this function, so we don't need to worry about MT-safety. But it's 306 // possible that the error handler itself may crash or die on an internal 307 // error, for example, when the stack/heap is badly damaged. We must be 308 // able to handle recursive errors that happen inside error handler. 309 // 310 // Error reporting is done in several steps. If a crash or internal error 311 // occurred when reporting an error, the nested signal/exception handler 312 // can skip steps that are already (or partially) done. Error reporting will 313 // continue from the next step. This allows us to retrieve and print 314 // information that may be unsafe to get after a fatal error. If it happens, 315 // you may find nested report_and_die() frames when you look at the stack 316 // in a debugger. 317 // 318 // In general, a hang in error handler is much worse than a crash or internal 319 // error, as it's harder to recover from a hang. Deadlock can happen if we 320 // try to grab a lock that is already owned by current thread, or if the 321 // owner is blocked forever (e.g. in os::infinite_sleep()). If possible, the 322 // error handler and all the functions it called should avoid grabbing any 323 // lock. An important thing to notice is that memory allocation needs a lock. 324 // 325 // We should avoid using large stack allocated buffers. Many errors happen 326 // when stack space is already low. Making things even worse is that there 327 // could be nested report_and_die() calls on stack (see above). Only one 328 // thread can report error, so large buffers are statically allocated in data 329 // segment. 330 331 void VMError::report(outputStream* st) { 332 # define BEGIN if (_current_step == 0) { _current_step = 1; 333 # define STEP(n, s) } if (_current_step < n) { _current_step = n; _current_step_info = s; 334 # define END } 335 336 // don't allocate large buffer on stack 337 static char buf[O_BUFLEN]; 338 339 BEGIN 340 341 STEP(10, "(printing fatal error message)") 342 343 st->print_cr("#"); 344 if (should_report_bug(_id)) { 345 st->print_cr("# A fatal error has been detected by the Java Runtime Environment:"); 346 } else { 347 st->print_cr("# There is insufficient memory for the Java " 348 "Runtime Environment to continue."); 349 } 350 351 STEP(15, "(printing type of error)") 352 353 switch(_id) { 354 case oom_error: 355 if (_size) { 356 st->print("# Native memory allocation (malloc) failed to allocate "); 357 jio_snprintf(buf, sizeof(buf), SIZE_FORMAT, _size); 358 st->print(buf); 359 st->print(" bytes"); 360 if (_message != NULL) { 361 st->print(" for "); 362 st->print(_message); 363 } 364 st->cr(); 365 } else { 366 if (_message != NULL) 367 st->print("# "); 368 st->print_cr(_message); 369 } 370 // In error file give some solutions 371 if (_verbose) { 372 st->print_cr("# Possible reasons:"); 373 st->print_cr("# The system is out of physical RAM or swap space"); 374 st->print_cr("# In 32 bit mode, the process size limit was hit"); 375 st->print_cr("# Possible solutions:"); 376 st->print_cr("# Reduce memory load on the system"); 377 st->print_cr("# Increase physical memory or swap space"); 378 st->print_cr("# Check if swap backing store is full"); 379 st->print_cr("# Use 64 bit Java on a 64 bit OS"); 380 st->print_cr("# Decrease Java heap size (-Xmx/-Xms)"); 381 st->print_cr("# Decrease number of Java threads"); 382 st->print_cr("# Decrease Java thread stack sizes (-Xss)"); 383 st->print_cr("# Set larger code cache with -XX:ReservedCodeCacheSize="); 384 st->print_cr("# This output file may be truncated or incomplete."); 385 } else { 386 return; // that's enough for the screen 387 } 388 break; 389 case internal_error: 390 default: 391 break; 392 } 393 394 STEP(20, "(printing exception/signal name)") 395 396 st->print_cr("#"); 397 st->print("# "); 398 // Is it an OS exception/signal? 399 if (os::exception_name(_id, buf, sizeof(buf))) { 400 st->print("%s", buf); 401 st->print(" (0x%x)", _id); // signal number 402 st->print(" at pc=" PTR_FORMAT, _pc); 403 } else { 404 if (should_report_bug(_id)) { 405 st->print("Internal Error"); 406 } else { 407 st->print("Out of Memory Error"); 408 } 409 if (_filename != NULL && _lineno > 0) { 410 #ifdef PRODUCT 411 // In product mode chop off pathname? 412 char separator = os::file_separator()[0]; 413 const char *p = strrchr(_filename, separator); 414 const char *file = p ? p+1 : _filename; 415 #else 416 const char *file = _filename; 417 #endif 418 size_t len = strlen(file); 419 size_t buflen = sizeof(buf); 420 421 strncpy(buf, file, buflen); 422 if (len + 10 < buflen) { 423 sprintf(buf + len, ":%d", _lineno); 424 } 425 st->print(" (%s)", buf); 426 } else { 427 st->print(" (0x%x)", _id); 428 } 429 } 430 431 STEP(30, "(printing current thread and pid)") 432 433 // process id, thread id 434 st->print(", pid=%d", os::current_process_id()); 435 st->print(", tid=" UINTX_FORMAT, os::current_thread_id()); 436 st->cr(); 437 438 STEP(40, "(printing error message)") 439 440 if (should_report_bug(_id)) { // already printed the message. 441 // error message 442 if (_detail_msg) { 443 st->print_cr("# %s: %s", _message ? _message : "Error", _detail_msg); 444 } else if (_message) { 445 st->print_cr("# Error: %s", _message); 446 } 447 } 448 449 STEP(50, "(printing Java version string)") 450 451 // VM version 452 st->print_cr("#"); 453 JDK_Version::current().to_string(buf, sizeof(buf)); 454 const char* runtime_name = JDK_Version::runtime_name() != NULL ? 455 JDK_Version::runtime_name() : ""; 456 const char* runtime_version = JDK_Version::runtime_version() != NULL ? 457 JDK_Version::runtime_version() : ""; 458 st->print_cr("# JRE version: %s (%s) (build %s)", runtime_name, buf, runtime_version); 459 st->print_cr("# Java VM: %s (%s %s %s %s)", 460 Abstract_VM_Version::vm_name(), 461 Abstract_VM_Version::vm_release(), 462 Abstract_VM_Version::vm_info_string(), 463 Abstract_VM_Version::vm_platform_string(), 464 UseCompressedOops ? "compressed oops" : "" 465 ); 466 467 STEP(60, "(printing problematic frame)") 468 469 // Print current frame if we have a context (i.e. it's a crash) 470 if (_context) { 471 st->print_cr("# Problematic frame:"); 472 st->print("# "); 473 frame fr = os::fetch_frame_from_context(_context); 474 fr.print_on_error(st, buf, sizeof(buf)); 475 st->cr(); 476 st->print_cr("#"); 477 } 478 STEP(63, "(printing core file information)") 479 st->print("# "); 480 if (coredump_status) { 481 st->print("Core dump written. Default location: %s", coredump_message); 482 } else { 483 st->print("Failed to write core dump. %s", coredump_message); 484 } 485 st->print_cr(""); 486 st->print_cr("#"); 487 488 STEP(65, "(printing bug submit message)") 489 490 if (should_report_bug(_id) && _verbose) { 491 print_bug_submit_message(st, _thread); 492 } 493 494 STEP(70, "(printing thread)" ) 495 496 if (_verbose) { 497 st->cr(); 498 st->print_cr("--------------- T H R E A D ---------------"); 499 st->cr(); 500 } 501 502 STEP(80, "(printing current thread)" ) 503 504 // current thread 505 if (_verbose) { 506 if (_thread) { 507 st->print("Current thread (" PTR_FORMAT "): ", _thread); 508 _thread->print_on_error(st, buf, sizeof(buf)); 509 st->cr(); 510 } else { 511 st->print_cr("Current thread is native thread"); 512 } 513 st->cr(); 514 } 515 516 STEP(90, "(printing siginfo)" ) 517 518 // signal no, signal code, address that caused the fault 519 if (_verbose && _siginfo) { 520 os::print_siginfo(st, _siginfo); 521 st->cr(); 522 } 523 524 STEP(100, "(printing registers, top of stack, instructions near pc)") 525 526 // registers, top of stack, instructions near pc 527 if (_verbose && _context) { 528 os::print_context(st, _context); 529 st->cr(); 530 } 531 532 STEP(105, "(printing register info)") 533 534 // decode register contents if possible 535 if (_verbose && _context && Universe::is_fully_initialized()) { 536 os::print_register_info(st, _context); 537 st->cr(); 538 } 539 540 STEP(110, "(printing stack bounds)" ) 541 542 if (_verbose) { 543 st->print("Stack: "); 544 545 address stack_top; 546 size_t stack_size; 547 548 if (_thread) { 549 stack_top = _thread->stack_base(); 550 stack_size = _thread->stack_size(); 551 } else { 552 stack_top = os::current_stack_base(); 553 stack_size = os::current_stack_size(); 554 } 555 556 address stack_bottom = stack_top - stack_size; 557 st->print("[" PTR_FORMAT "," PTR_FORMAT "]", stack_bottom, stack_top); 558 559 frame fr = _context ? os::fetch_frame_from_context(_context) 560 : os::current_frame(); 561 562 if (fr.sp()) { 563 st->print(", sp=" PTR_FORMAT, fr.sp()); 564 size_t free_stack_size = pointer_delta(fr.sp(), stack_bottom, 1024); 565 st->print(", free space=" SIZE_FORMAT "k", free_stack_size); 566 } 567 568 st->cr(); 569 } 570 571 STEP(120, "(printing native stack)" ) 572 573 if (_verbose) { 574 frame fr = _context ? os::fetch_frame_from_context(_context) 575 : os::current_frame(); 576 577 // see if it's a valid frame 578 if (fr.pc()) { 579 st->print_cr("Native frames: (J=compiled Java code, j=interpreted, Vv=VM code, C=native code)"); 580 581 582 int count = 0; 583 while (count++ < StackPrintLimit) { 584 fr.print_on_error(st, buf, sizeof(buf)); 585 st->cr(); 586 if (os::is_first_C_frame(&fr)) break; 587 fr = os::get_sender_for_C_frame(&fr); 588 } 589 590 if (count > StackPrintLimit) { 591 st->print_cr("...<more frames>..."); 592 } 593 594 st->cr(); 595 } 596 } 597 598 STEP(130, "(printing Java stack)" ) 599 600 if (_verbose && _thread && _thread->is_Java_thread()) { 601 print_stack_trace(st, (JavaThread*)_thread, buf, sizeof(buf)); 602 } 603 604 STEP(135, "(printing target Java thread stack)" ) 605 606 // printing Java thread stack trace if it is involved in GC crash 607 if (_verbose && _thread && (_thread->is_Named_thread())) { 608 JavaThread* jt = ((NamedThread *)_thread)->processed_thread(); 609 if (jt != NULL) { 610 st->print_cr("JavaThread " PTR_FORMAT " (nid = " UINTX_FORMAT ") was being processed", jt, jt->osthread()->thread_id()); 611 print_stack_trace(st, jt, buf, sizeof(buf), true); 612 } 613 } 614 615 STEP(140, "(printing VM operation)" ) 616 617 if (_verbose && _thread && _thread->is_VM_thread()) { 618 VMThread* t = (VMThread*)_thread; 619 VM_Operation* op = t->vm_operation(); 620 if (op) { 621 op->print_on_error(st); 622 st->cr(); 623 st->cr(); 624 } 625 } 626 627 STEP(150, "(printing current compile task)" ) 628 629 if (_verbose && _thread && _thread->is_Compiler_thread()) { 630 CompilerThread* t = (CompilerThread*)_thread; 631 if (t->task()) { 632 st->cr(); 633 st->print_cr("Current CompileTask:"); 634 t->task()->print_line_on_error(st, buf, sizeof(buf)); 635 st->cr(); 636 } 637 } 638 639 STEP(160, "(printing process)" ) 640 641 if (_verbose) { 642 st->cr(); 643 st->print_cr("--------------- P R O C E S S ---------------"); 644 st->cr(); 645 } 646 647 STEP(170, "(printing all threads)" ) 648 649 // all threads 650 if (_verbose && _thread) { 651 Threads::print_on_error(st, _thread, buf, sizeof(buf)); 652 st->cr(); 653 } 654 655 STEP(175, "(printing VM state)" ) 656 657 if (_verbose) { 658 // Safepoint state 659 st->print("VM state:"); 660 661 if (SafepointSynchronize::is_synchronizing()) st->print("synchronizing"); 662 else if (SafepointSynchronize::is_at_safepoint()) st->print("at safepoint"); 663 else st->print("not at safepoint"); 664 665 // Also see if error occurred during initialization or shutdown 666 if (!Universe::is_fully_initialized()) { 667 st->print(" (not fully initialized)"); 668 } else if (VM_Exit::vm_exited()) { 669 st->print(" (shutting down)"); 670 } else { 671 st->print(" (normal execution)"); 672 } 673 st->cr(); 674 st->cr(); 675 } 676 677 STEP(180, "(printing owned locks on error)" ) 678 679 // mutexes/monitors that currently have an owner 680 if (_verbose) { 681 print_owned_locks_on_error(st); 682 st->cr(); 683 } 684 685 STEP(190, "(printing heap information)" ) 686 687 if (_verbose && Universe::is_fully_initialized()) { 688 Universe::heap()->print_on_error(st); 689 st->cr(); 690 691 st->print_cr("Polling page: " INTPTR_FORMAT, os::get_polling_page()); 692 st->cr(); 693 } 694 695 STEP(195, "(printing code cache information)" ) 696 697 if (_verbose && Universe::is_fully_initialized()) { 698 // print code cache information before vm abort 699 CodeCache::print_summary(st); 700 st->cr(); 701 } 702 703 STEP(200, "(printing ring buffers)" ) 704 705 if (_verbose) { 706 Events::print_all(st); 707 st->cr(); 708 } 709 710 STEP(205, "(printing dynamic libraries)" ) 711 712 if (_verbose) { 713 // dynamic libraries, or memory map 714 os::print_dll_info(st); 715 st->cr(); 716 } 717 718 STEP(210, "(printing VM options)" ) 719 720 if (_verbose) { 721 // VM options 722 Arguments::print_on(st); 723 st->cr(); 724 } 725 726 STEP(215, "(printing warning if internal testing API used)" ) 727 728 if (WhiteBox::used()) { 729 st->print_cr("Unsupported internal testing APIs have been used."); 730 st->cr(); 731 } 732 733 STEP(220, "(printing environment variables)" ) 734 735 if (_verbose) { 736 os::print_environment_variables(st, env_list, buf, sizeof(buf)); 737 st->cr(); 738 } 739 740 STEP(225, "(printing signal handlers)" ) 741 742 if (_verbose) { 743 os::print_signal_handlers(st, buf, sizeof(buf)); 744 st->cr(); 745 } 746 747 STEP(230, "" ) 748 749 if (_verbose) { 750 st->cr(); 751 st->print_cr("--------------- S Y S T E M ---------------"); 752 st->cr(); 753 } 754 755 STEP(240, "(printing OS information)" ) 756 757 if (_verbose) { 758 os::print_os_info(st); 759 st->cr(); 760 } 761 762 STEP(250, "(printing CPU info)" ) 763 if (_verbose) { 764 os::print_cpu_info(st); 765 st->cr(); 766 } 767 768 STEP(260, "(printing memory info)" ) 769 770 if (_verbose) { 771 os::print_memory_info(st); 772 st->cr(); 773 } 774 775 STEP(270, "(printing internal vm info)" ) 776 777 if (_verbose) { 778 st->print_cr("vm_info: %s", Abstract_VM_Version::internal_vm_info_string()); 779 st->cr(); 780 } 781 782 STEP(280, "(printing date and time)" ) 783 784 if (_verbose) { 785 os::print_date_and_time(st); 786 st->cr(); 787 } 788 789 END 790 791 # undef BEGIN 792 # undef STEP 793 # undef END 794 } 795 796 VMError* volatile VMError::first_error = NULL; 797 volatile jlong VMError::first_error_tid = -1; 798 799 void VMError::report_and_die() { 800 // Don't allocate large buffer on stack 801 static char buffer[O_BUFLEN]; 802 803 // An error could happen before tty is initialized or after it has been 804 // destroyed. Here we use a very simple unbuffered fdStream for printing. 805 // Only out.print_raw() and out.print_raw_cr() should be used, as other 806 // printing methods need to allocate large buffer on stack. To format a 807 // string, use jio_snprintf() with a static buffer or use staticBufferStream. 808 static fdStream out(defaultStream::output_fd()); 809 810 // How many errors occurred in error handler when reporting first_error. 811 static int recursive_error_count; 812 813 // We will first print a brief message to standard out (verbose = false), 814 // then save detailed information in log file (verbose = true). 815 static bool out_done = false; // done printing to standard out 816 static bool log_done = false; // done saving error log 817 static bool transmit_report_done = false; // done error reporting 818 static fdStream log; // error log 819 820 // disble NMT to avoid further exception 821 MemTracker::shutdown(MemTracker::NMT_error_reporting); 822 823 if (SuppressFatalErrorMessage) { 824 os::abort(); 825 } 826 jlong mytid = os::current_thread_id(); 827 if (first_error == NULL && 828 Atomic::cmpxchg_ptr(this, &first_error, NULL) == NULL) { 829 830 // first time 831 first_error_tid = mytid; 832 set_error_reported(); 833 834 if (ShowMessageBoxOnError || PauseAtExit) { 835 show_message_box(buffer, sizeof(buffer)); 836 837 // User has asked JVM to abort. Reset ShowMessageBoxOnError so the 838 // WatcherThread can kill JVM if the error handler hangs. 839 ShowMessageBoxOnError = false; 840 } 841 842 // Write a minidump on Windows, check core dump limits on Linux/Solaris 843 os::check_or_create_dump(_siginfo, _context, buffer, sizeof(buffer)); 844 845 // reset signal handlers or exception filter; make sure recursive crashes 846 // are handled properly. 847 reset_signal_handlers(); 848 849 } else { 850 // If UseOsErrorReporting we call this for each level of the call stack 851 // while searching for the exception handler. Only the first level needs 852 // to be reported. 853 if (UseOSErrorReporting && log_done) return; 854 855 // This is not the first error, see if it happened in a different thread 856 // or in the same thread during error reporting. 857 if (first_error_tid != mytid) { 858 jio_snprintf(buffer, sizeof(buffer), 859 "[thread " INT64_FORMAT " also had an error]", 860 mytid); 861 out.print_raw_cr(buffer); 862 863 // error reporting is not MT-safe, block current thread 864 os::infinite_sleep(); 865 866 } else { 867 if (recursive_error_count++ > 30) { 868 out.print_raw_cr("[Too many errors, abort]"); 869 os::die(); 870 } 871 872 jio_snprintf(buffer, sizeof(buffer), 873 "[error occurred during error reporting %s, id 0x%x]", 874 first_error ? first_error->_current_step_info : "", 875 _id); 876 if (log.is_open()) { 877 log.cr(); 878 log.print_raw_cr(buffer); 879 log.cr(); 880 } else { 881 out.cr(); 882 out.print_raw_cr(buffer); 883 out.cr(); 884 } 885 } 886 } 887 888 // print to screen 889 if (!out_done) { 890 first_error->_verbose = false; 891 892 staticBufferStream sbs(buffer, sizeof(buffer), &out); 893 first_error->report(&sbs); 894 895 out_done = true; 896 897 first_error->_current_step = 0; // reset current_step 898 first_error->_current_step_info = ""; // reset current_step string 899 } 900 901 // print to error log file 902 if (!log_done) { 903 first_error->_verbose = true; 904 905 // see if log file is already open 906 if (!log.is_open()) { 907 // open log file 908 int fd = -1; 909 910 if (ErrorFile != NULL) { 911 bool copy_ok = 912 Arguments::copy_expand_pid(ErrorFile, strlen(ErrorFile), buffer, sizeof(buffer)); 913 if (copy_ok) { 914 fd = open(buffer, O_RDWR | O_CREAT | O_TRUNC, 0666); 915 } 916 } 917 918 if (fd == -1) { 919 const char *cwd = os::get_current_directory(buffer, sizeof(buffer)); 920 size_t len = strlen(cwd); 921 // either user didn't specify, or the user's location failed, 922 // so use the default name in the current directory 923 jio_snprintf(&buffer[len], sizeof(buffer)-len, "%shs_err_pid%u.log", 924 os::file_separator(), os::current_process_id()); 925 fd = open(buffer, O_RDWR | O_CREAT | O_TRUNC, 0666); 926 } 927 928 if (fd == -1) { 929 const char * tmpdir = os::get_temp_directory(); 930 // try temp directory if it exists. 931 if (tmpdir != NULL && tmpdir[0] != '\0') { 932 jio_snprintf(buffer, sizeof(buffer), "%s%shs_err_pid%u.log", 933 tmpdir, os::file_separator(), os::current_process_id()); 934 fd = open(buffer, O_RDWR | O_CREAT | O_TRUNC, 0666); 935 } 936 } 937 938 if (fd != -1) { 939 out.print_raw("# An error report file with more information is saved as:\n# "); 940 out.print_raw_cr(buffer); 941 os::set_error_file(buffer); 942 943 log.set_fd(fd); 944 } else { 945 out.print_raw_cr("# Can not save log file, dump to screen.."); 946 log.set_fd(defaultStream::output_fd()); 947 /* Error reporting currently needs dumpfile. 948 * Maybe implement direct streaming in the future.*/ 949 transmit_report_done = true; 950 } 951 } 952 953 staticBufferStream sbs(buffer, O_BUFLEN, &log); 954 first_error->report(&sbs); 955 first_error->_current_step = 0; // reset current_step 956 first_error->_current_step_info = ""; // reset current_step string 957 958 // Run error reporting to determine whether or not to report the crash. 959 if (!transmit_report_done && should_report_bug(first_error->_id)) { 960 transmit_report_done = true; 961 FILE* hs_err = ::fdopen(log.fd(), "r"); 962 if (NULL != hs_err) { 963 ErrorReporter er; 964 er.call(hs_err, buffer, O_BUFLEN); 965 } 966 } 967 968 if (log.fd() != defaultStream::output_fd()) { 969 close(log.fd()); 970 } 971 972 log.set_fd(-1); 973 log_done = true; 974 } 975 976 977 static bool skip_OnError = false; 978 if (!skip_OnError && OnError && OnError[0]) { 979 skip_OnError = true; 980 981 out.print_raw_cr("#"); 982 out.print_raw ("# -XX:OnError=\""); 983 out.print_raw (OnError); 984 out.print_raw_cr("\""); 985 986 char* cmd; 987 const char* ptr = OnError; 988 while ((cmd = next_OnError_command(buffer, sizeof(buffer), &ptr)) != NULL){ 989 out.print_raw ("# Executing "); 990 #if defined(LINUX) || defined(_ALLBSD_SOURCE) 991 out.print_raw ("/bin/sh -c "); 992 #elif defined(SOLARIS) 993 out.print_raw ("/usr/bin/sh -c "); 994 #endif 995 out.print_raw ("\""); 996 out.print_raw (cmd); 997 out.print_raw_cr("\" ..."); 998 999 os::fork_and_exec(cmd); 1000 } 1001 1002 // done with OnError 1003 OnError = NULL; 1004 } 1005 1006 static bool skip_replay = false; 1007 if (DumpReplayDataOnError && _thread && _thread->is_Compiler_thread() && !skip_replay) { 1008 skip_replay = true; 1009 ciEnv* env = ciEnv::current(); 1010 if (env != NULL) { 1011 env->dump_replay_data(); 1012 } 1013 } 1014 1015 static bool skip_bug_url = !should_report_bug(first_error->_id); 1016 if (!skip_bug_url) { 1017 skip_bug_url = true; 1018 1019 out.print_raw_cr("#"); 1020 print_bug_submit_message(&out, _thread); 1021 } 1022 1023 if (!UseOSErrorReporting) { 1024 // os::abort() will call abort hooks, try it first. 1025 static bool skip_os_abort = false; 1026 if (!skip_os_abort) { 1027 skip_os_abort = true; 1028 bool dump_core = should_report_bug(first_error->_id); 1029 os::abort(dump_core); 1030 } 1031 1032 // if os::abort() doesn't abort, try os::die(); 1033 os::die(); 1034 } 1035 } 1036 1037 /* 1038 * OnOutOfMemoryError scripts/commands executed while VM is a safepoint - this 1039 * ensures utilities such as jmap can observe the process is a consistent state. 1040 */ 1041 class VM_ReportJavaOutOfMemory : public VM_Operation { 1042 private: 1043 VMError *_err; 1044 public: 1045 VM_ReportJavaOutOfMemory(VMError *err) { _err = err; } 1046 VMOp_Type type() const { return VMOp_ReportJavaOutOfMemory; } 1047 void doit(); 1048 }; 1049 1050 void VM_ReportJavaOutOfMemory::doit() { 1051 // Don't allocate large buffer on stack 1052 static char buffer[O_BUFLEN]; 1053 1054 tty->print_cr("#"); 1055 tty->print_cr("# java.lang.OutOfMemoryError: %s", _err->message()); 1056 tty->print_cr("# -XX:OnOutOfMemoryError=\"%s\"", OnOutOfMemoryError); 1057 1058 // make heap parsability 1059 Universe::heap()->ensure_parsability(false); // no need to retire TLABs 1060 1061 char* cmd; 1062 const char* ptr = OnOutOfMemoryError; 1063 while ((cmd = next_OnError_command(buffer, sizeof(buffer), &ptr)) != NULL){ 1064 tty->print("# Executing "); 1065 #if defined(LINUX) 1066 tty->print ("/bin/sh -c "); 1067 #elif defined(SOLARIS) 1068 tty->print ("/usr/bin/sh -c "); 1069 #endif 1070 tty->print_cr("\"%s\"...", cmd); 1071 1072 os::fork_and_exec(cmd); 1073 } 1074 } 1075 1076 void VMError::report_java_out_of_memory() { 1077 if (OnOutOfMemoryError && OnOutOfMemoryError[0]) { 1078 MutexLocker ml(Heap_lock); 1079 VM_ReportJavaOutOfMemory op(this); 1080 VMThread::execute(&op); 1081 } 1082 }