vmError.cpp (original) (raw)

1 /* 2 * Copyright (c) 2003, 2015, 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 "prims/whitebox.hpp" 32 #include "runtime/arguments.hpp" 33 #include "runtime/atomic.inline.hpp" 34 #include "runtime/frame.inline.hpp" 35 #include "runtime/init.hpp" 36 #include "runtime/os.hpp" 37 #include "runtime/thread.inline.hpp" 38 #include "runtime/vmThread.hpp" 39 #include "runtime/vm_operations.hpp" 40 #include "services/memTracker.hpp" 41 #include "utilities/debug.hpp" 42 #include "utilities/decoder.hpp" 43 #include "utilities/defaultStream.hpp" 44 #include "utilities/errorReporter.hpp" 45 #include "utilities/events.hpp" 46 #include "utilities/top.hpp" 47 #include "utilities/vmError.hpp" 48 49 // List of environment variables that should be reported in error log file. 50 const char env_list[] = { 51 // All platforms 52 "JAVA_HOME", "JRE_HOME", "JAVA_TOOL_OPTIONS", "_JAVA_OPTIONS", "CLASSPATH", 53 "JAVA_COMPILER", "PATH", "USERNAME", 54 55 // Env variables that are defined on Solaris/Linux/BSD 56 "LD_LIBRARY_PATH", "LD_PRELOAD", "SHELL", "DISPLAY", 57 "HOSTTYPE", "OSTYPE", "ARCH", "MACHTYPE", 58 59 // defined on Linux 60 "LD_ASSUME_KERNEL", "_JAVA_SR_SIGNUM", 61 62 // defined on Darwin 63 "DYLD_LIBRARY_PATH", "DYLD_FALLBACK_LIBRARY_PATH", 64 "DYLD_FRAMEWORK_PATH", "DYLD_FALLBACK_FRAMEWORK_PATH", 65 "DYLD_INSERT_LIBRARIES", 66 67 // defined on Windows 68 "OS", "PROCESSOR_IDENTIFIER", "_ALT_JAVA_HOME_DIR", 69 70 (const char )0 71 }; 72 73 // A simple parser for -XX:OnError, usage: 74 // ptr = OnError; 75 // while ((cmd = next_OnError_command(buffer, sizeof(buffer), &ptr) != NULL) 76 // ... ... 77 static char next_OnError_command(char buf, int buflen, const char* ptr) { 78 if (ptr == NULL || ptr == NULL) return NULL; 79 80 const char cmd = ptr; 81 82 // skip leading blanks or ';' 83 while (cmd == ' ' || cmd == ';') cmd++; 84 85 if (cmd == '\0') return NULL; 86 87 const char * cmdend = cmd; 88 while (cmdend != '\0' && cmdend != ';') cmdend++; 89 90 Arguments::copy_expand_pid(cmd, cmdend - cmd, buf, buflen); 91 92 ptr = (cmdend == '\0' ? cmdend : cmdend + 1); 93 return buf; 94 } 95 96 static void print_bug_submit_message(outputStream out, Thread thread) { 97 if (out == NULL) return; 98 out->print_raw_cr("# If you would like to submit a bug report, please visit:"); 99 out->print_raw ("# "); 100 out->print_raw_cr(Arguments::java_vendor_url_bug()); 101 // If the crash is in native code, encourage user to submit a bug to the 102 // provider of that code. 103 if (thread && thread->is_Java_thread() && 104 !thread->is_hidden_from_external_view()) { 105 JavaThread jt = (JavaThread)thread; 106 if (jt->thread_state() == _thread_in_native) { 107 out->print_cr("# The crash happened outside the Java Virtual Machine in native code.\n# See problematic frame for where to report the bug."); 108 } 109 } 110 out->print_raw_cr("#"); 111 } 112 113 bool VMError::coredump_status; 114 char VMError::coredump_message[O_BUFLEN]; 115 116 void VMError::record_coredump_status(const char message, bool status) { 117 coredump_status = status; 118 strncpy(coredump_message, message, sizeof(coredump_message)); 119 coredump_message[sizeof(coredump_message)-1] = 0; 120 } 121 122 // Return a string to describe the error 123 char VMError::error_string(char buf, int buflen) { 124 char signame_buf[64]; 125 const char signame = os::exception_name(_id, signame_buf, sizeof(signame_buf)); 126 127 if (signame) { 128 jio_snprintf(buf, buflen, 129 "%s (0x%x) at pc=" PTR_FORMAT ", pid=%d, tid=" UINTX_FORMAT, 130 signame, _id, _pc, 131 os::current_process_id(), os::current_thread_id()); 132 } else if (_filename != NULL && _lineno > 0) { 133 // skip directory names 134 char separator = os::file_separator()[0]; 135 const char p = strrchr(_filename, separator); 136 int n = jio_snprintf(buf, buflen, 137 "Internal Error at %s:%d, pid=%d, tid=" UINTX_FORMAT, 138 p ? p + 1 : _filename, _lineno, 139 os::current_process_id(), os::current_thread_id()); 140 if (n >= 0 && n < buflen && _message) { 141 if (strlen(_detail_msg) > 0) { 142 jio_snprintf(buf + n, buflen - n, "%s%s: %s", 143 os::line_separator(), _message, _detail_msg); 144 } else { 145 jio_snprintf(buf + n, buflen - n, "%sError: %s", 146 os::line_separator(), _message); 147 } 148 } 149 } else { 150 jio_snprintf(buf, buflen, 151 "Internal Error (0x%x), pid=%d, tid=" UINTX_FORMAT, 152 _id, os::current_process_id(), os::current_thread_id()); 153 } 154 155 return buf; 156 } 157 158 void VMError::print_stack_trace(outputStream st, JavaThread jt, 159 char buf, int buflen, bool verbose) { 160 #ifdef ZERO 161 if (jt->zero_stack()->sp() && jt->top_zero_frame()) { 162 // StackFrameStream uses the frame anchor, which may not have 163 // been set up. This can be done at any time in Zero, however, 164 // so if it hasn't been set up then we just set it up now and 165 // clear it again when we're done. 166 bool has_last_Java_frame = jt->has_last_Java_frame(); 167 if (!has_last_Java_frame) 168 jt->set_last_Java_frame(); 169 st->print("Java frames:"); 170 171 // If the top frame is a Shark frame and the frame anchor isn't 172 // set up then it's possible that the information in the frame 173 // is garbage: it could be from a previous decache, or it could 174 // simply have never been written. So we print a warning... 175 StackFrameStream sfs(jt); 176 if (!has_last_Java_frame && !sfs.is_done()) { 177 if (sfs.current()->zeroframe()->is_shark_frame()) { 178 st->print(" (TOP FRAME MAY BE JUNK)"); 179 } 180 } 181 st->cr(); 182 183 // Print the frames 184 for(int i = 0; !sfs.is_done(); sfs.next(), i++) { 185 sfs.current()->zero_print_on_error(i, st, buf, buflen); 186 st->cr(); 187 } 188 189 // Reset the frame anchor if necessary 190 if (!has_last_Java_frame) 191 jt->reset_last_Java_frame(); 192 } 193 #else 194 if (jt->has_last_Java_frame()) { 195 st->print_cr("Java frames: (J=compiled Java code, j=interpreted, Vv=VM code)"); 196 for(StackFrameStream sfs(jt); !sfs.is_done(); sfs.next()) { 197 sfs.current()->print_on_error(st, buf, buflen, verbose); 198 st->cr(); 199 } 200 } 201 #endif // ZERO 202 } 203 204 void VMError::print_oom_reasons(outputStream st) { 205 st->print_cr("# Possible reasons:"); 206 st->print_cr("# The system is out of physical RAM or swap space"); 207 st->print_cr("# In 32 bit mode, the process size limit was hit"); 208 st->print_cr("# Possible solutions:"); 209 st->print_cr("# Reduce memory load on the system"); 210 st->print_cr("# Increase physical memory or swap space"); 211 st->print_cr("# Check if swap backing store is full"); 212 st->print_cr("# Use 64 bit Java on a 64 bit OS"); 213 st->print_cr("# Decrease Java heap size (-Xmx/-Xms)"); 214 st->print_cr("# Decrease number of Java threads"); 215 st->print_cr("# Decrease Java thread stack sizes (-Xss)"); 216 st->print_cr("# Set larger code cache with -XX:ReservedCodeCacheSize="); 217 st->print_cr("# This output file may be truncated or incomplete."); 218 } 219 220 const char VMError::gc_mode() { 221 if (UseG1GC) return "g1 gc"; 222 if (UseParallelGC) return "parallel gc"; 223 if (UseConcMarkSweepGC) return "concurrent mark sweep gc"; 224 if (UseSerialGC) return "serial gc"; 225 return "ERROR in GC mode"; 226 } 227 228 void VMError::report_vm_version(outputStream st, char buf, int buflen) { 229 // VM version 230 st->print_cr("#"); 231 JDK_Version::current().to_string(buf, buflen); 232 const char* runtime_name = JDK_Version::runtime_name() != NULL ? 233 JDK_Version::runtime_name() : ""; 234 const char* runtime_version = JDK_Version::runtime_version() != NULL ? 235 JDK_Version::runtime_version() : ""; 236 st->print_cr("# JRE version: %s (%s) (build %s)", runtime_name, buf, runtime_version); 237 // This is the long version with some default settings added 238 st->print_cr("# Java VM: %s (%s, %s%s%s%s%s, %s, %s)", 239 Abstract_VM_Version::vm_name(), 240 Abstract_VM_Version::vm_release(), 241 Abstract_VM_Version::vm_info_string(), 242 TieredCompilation ? ", tiered" : "", 243 #if INCLUDE_JVMCI 244 EnableJVMCI ? ", jvmci" : "", 245 UseJVMCICompiler ? ", jvmci compiler" : "", 246 #else 247 "", "", 248 #endif 249 UseCompressedOops ? ", compressed oops" : "", 250 gc_mode(), 251 Abstract_VM_Version::vm_platform_string() 252 ); 253 } 254 255 // This is the main function to report a fatal error. Only one thread can 256 // call this function, so we don't need to worry about MT-safety. But it's 257 // possible that the error handler itself may crash or die on an internal 258 // error, for example, when the stack/heap is badly damaged. We must be 259 // able to handle recursive errors that happen inside error handler. 260 // 261 // Error reporting is done in several steps. If a crash or internal error 262 // occurred when reporting an error, the nested signal/exception handler 263 // can skip steps that are already (or partially) done. Error reporting will 264 // continue from the next step. This allows us to retrieve and print 265 // information that may be unsafe to get after a fatal error. If it happens, 266 // you may find nested report_and_die() frames when you look at the stack 267 // in a debugger. 268 // 269 // In general, a hang in error handler is much worse than a crash or internal 270 // error, as it's harder to recover from a hang. Deadlock can happen if we 271 // try to grab a lock that is already owned by current thread, or if the 272 // owner is blocked forever (e.g. in os::infinite_sleep()). If possible, the 273 // error handler and all the functions it called should avoid grabbing any 274 // lock. An important thing to notice is that memory allocation needs a lock. 275 // 276 // We should avoid using large stack allocated buffers. Many errors happen 277 // when stack space is already low. Making things even worse is that there 278 // could be nested report_and_die() calls on stack (see above). Only one 279 // thread can report error, so large buffers are statically allocated in data 280 // segment. 281 282 int VMError::_current_step; 283 const char* VMError::_current_step_info; 284 # define STEP(n, s) } if (_current_step < n) { if (!_vm_info_cmd) { _current_step = n; _current_step_info = s; } 285 # define BEGIN if (_current_step == 0) { if (!_vm_info_cmd) { _current_step = 1; } 286 # define END } 287 288 void VMError::report_summary(outputStream* st, char* buf, int buflen) { 289 290 BEGIN 291 292 // Summary reports are in the 200s. 293 STEP(200, "(printing summary)" ) 294 295 st->cr(); 296 st->print_cr("--------------- S U M M A R Y ------------"); 297 st->cr(); 298 299 STEP(210, "(printing VM option summary)" ) 300 301 // VM options 302 Arguments::print_summary_on(st); 303 st->cr(); 304 305 STEP(220, "(printing summary machine and OS info)") 306 307 os::print_summary_info(st, buf, sizeof(buf)); 308 309 STEP(230, "(printing date and time)" ) 310 311 os::print_date_and_time(st, buf, sizeof(buf)); 312 END 313 } 314 315 void VMError::report_process(outputStream* st, char* buf, int buflen) { 316 317 BEGIN 318 STEP(500, "(printing process)" ) 319 320 st->cr(); 321 st->print_cr("--------------- P R O C E S S ---------------"); 322 st->cr(); 323 324 STEP(510, "(printing all threads)" ) 325 326 // all threads 327 if (_thread) { 328 Threads::print_on_error(st, _thread, buf, buflen); 329 st->cr(); 330 } 331 332 STEP(520, "(printing VM state)" ) 333 334 // Safepoint state 335 st->print("VM state:"); 336 337 if (SafepointSynchronize::is_synchronizing()) st->print("synchronizing"); 338 else if (SafepointSynchronize::is_at_safepoint()) st->print("at safepoint"); 339 else st->print("not at safepoint"); 340 341 // Also see if error occurred during initialization or shutdown 342 if (!Universe::is_fully_initialized()) { 343 st->print(" (not fully initialized)"); 344 } else if (VM_Exit::vm_exited()) { 345 st->print(" (shutting down)"); 346 } else { 347 st->print(" (normal execution)"); 348 } 349 st->cr(); 350 st->cr(); 351 352 STEP(530, "(printing owned locks on error)" ) 353 354 // mutexes/monitors that currently have an owner 355 print_owned_locks_on_error(st); 356 st->cr(); 357 358 STEP(540, "(printing number of OutOfMemoryError and StackOverflow exceptions)") 359 360 if (Exceptions::has_exception_counts()) { 361 st->print_cr("OutOfMemory and StackOverflow Exception counts:"); 362 Exceptions::print_exception_counts_on_error(st); 363 st->cr(); 364 } 365 366 STEP(550, "(printing compressed oops mode") 367 368 if (UseCompressedOops) { 369 Universe::print_compressed_oops_mode(st); 370 if (UseCompressedClassPointers) { 371 Metaspace::print_compressed_class_space(st); 372 } 373 st->cr(); 374 } 375 376 STEP(560, "(printing heap information)" ) 377 378 if (Universe::is_fully_initialized()) { 379 Universe::heap()->print_on_error(st); 380 st->cr(); 381 382 st->print_cr("Polling page: " INTPTR_FORMAT, p2i(os::get_polling_page())); 383 st->cr(); 384 } 385 386 STEP(570, "(printing code cache information)" ) 387 388 if (Universe::is_fully_initialized()) { 389 // print code cache information before vm abort 390 CodeCache::print_summary(st); 391 st->cr(); 392 } 393 394 STEP(580, "(printing ring buffers)" ) 395 396 Events::print_all(st); 397 st->cr(); 398 399 STEP(590, "(printing dynamic libraries)" ) 400 401 // dynamic libraries, or memory map 402 os::print_dll_info(st); 403 st->cr(); 404 405 STEP(600, "(printing VM options)" ) 406 407 // VM options 408 Arguments::print_on(st); 409 st->cr(); 410 411 STEP(610, "(printing warning if internal testing API used)" ) 412 413 if (WhiteBox::used()) { 414 st->print_cr("Unsupported internal testing APIs have been used."); 415 st->cr(); 416 } 417 418 STEP(620, "(printing all environment variables)" ) 419 420 os::print_environment_variables(st, env_list); 421 st->cr(); 422 423 STEP(630, "(printing signal handlers)" ) 424 425 os::print_signal_handlers(st, buf, buflen); 426 st->cr(); 427 428 STEP(640, "(Native Memory Tracking)" ) 429 MemTracker::error_report(st); 430 431 END 432 } 433 434 void VMError::report_system(outputStream* st, char* buf, int buflen) { 435 436 BEGIN 437 STEP(700, "(printing system)" ) 438 439 st->cr(); 440 st->print_cr("--------------- S Y S T E M ---------------"); 441 st->cr(); 442 443 STEP(710, "(printing OS information)" ) 444 445 os::print_os_info(st); 446 st->cr(); 447 448 STEP(720, "(printing CPU info)" ) 449 os::print_cpu_info(st, buf, buflen); 450 st->cr(); 451 452 STEP(730, "(printing memory info)" ) 453 454 os::print_memory_info(st); 455 st->cr(); 456 457 STEP(740, "(printing internal vm info)" ) 458 459 st->print_cr("vm_info: %s", Abstract_VM_Version::internal_vm_info_string()); 460 st->cr(); 461 462 END 463 } 464 465 #ifndef PRODUCT 466 void VMError::run_report_tests(outputStream* st) { 467 BEGIN 468 // test secondary error handling. Test it twice, to test that resetting 469 // error handler after a secondary crash works. 470 STEP(20, "(test secondary crash 1)") 471 if (TestCrashInErrorHandler != 0) { 472 st->print_cr("Will crash now (TestCrashInErrorHandler=" UINTX_FORMAT ")...", 473 TestCrashInErrorHandler); 474 controlled_crash(TestCrashInErrorHandler); 475 } 476 477 STEP(30, "(test secondary crash 2)") 478 if (TestCrashInErrorHandler != 0) { 479 st->print_cr("Will crash now (TestCrashInErrorHandler=" UINTX_FORMAT ")...", 480 TestCrashInErrorHandler); 481 controlled_crash(TestCrashInErrorHandler); 482 } 483 484 STEP(40, "(test safefetch in error handler)") 485 // test whether it is safe to use SafeFetch32 in Crash Handler. Test twice 486 // to test that resetting the signal handler works correctly. 487 if (TestSafeFetchInErrorHandler) { 488 st->print_cr("Will test SafeFetch..."); 489 if (CanUseSafeFetch32()) { 490 int* const invalid_pointer = (int*) get_segfault_address(); 491 const int x = 0x76543210; 492 int i1 = SafeFetch32(invalid_pointer, x); 493 int i2 = SafeFetch32(invalid_pointer, x); 494 if (i1 == x && i2 == x) { 495 st->print_cr("SafeFetch OK."); // Correctly deflected and returned default pattern 496 } else { 497 st->print_cr("??"); 498 } 499 } else { 500 st->print_cr("not possible; skipped."); 501 } 502 } 503 END 504 } 505 #endif // PRODUCT 506 507 // Main error reporting function. 508 void VMError::report(outputStream* st, bool _verbose) { 509 510 // don't allocate large buffer on stack 511 static char buf[O_BUFLEN]; 512 513 BEGIN 514 STEP(10, "(printing fatal error message)") 515 516 st->print_cr("#"); 517 if (should_report_bug(_id)) { 518 st->print_cr("# A fatal error has been detected by the Java Runtime Environment:"); 519 } else { 520 st->print_cr("# There is insufficient memory for the Java " 521 "Runtime Environment to continue."); 522 } 523 524 #ifndef PRODUCT 525 // Error handler self tests Step 20-40 526 if (_verbose) { 527 run_report_tests(st); 528 } 529 #endif // PRODUCT 530 531 STEP(50, "(printing type of error)") 532 533 switch(_id) { 534 case OOM_MALLOC_ERROR: 535 case OOM_MMAP_ERROR: 536 if (_size) { 537 st->print("# Native memory allocation "); 538 st->print((_id == (int)OOM_MALLOC_ERROR) ? "(malloc) failed to allocate " : 539 "(mmap) failed to map "); 540 jio_snprintf(buf, sizeof(buf), SIZE_FORMAT, _size); 541 st->print("%s", buf); 542 st->print(" bytes"); 543 if (strlen(_detail_msg) > 0) { 544 st->print(" for "); 545 st->print("%s", _detail_msg); 546 } 547 st->cr(); 548 } else { 549 if (strlen(_detail_msg) > 0) { 550 st->print("# "); 551 st->print_cr("%s", _detail_msg); 552 } 553 } 554 // In error file give some solutions 555 if (_verbose) { 556 print_oom_reasons(st); 557 } else { 558 return; // that's enough for the screen 559 } 560 break; 561 case VM_INFO: 562 case INTERNAL_ERROR: 563 default: 564 break; 565 } 566 567 STEP(60, "(printing exception/signal name)") 568 569 st->print_cr("#"); 570 st->print("# "); 571 // Is it an OS exception/signal? 572 if (os::exception_name(_id, buf, sizeof(buf))) { 573 st->print("%s", buf); 574 st->print(" (0x%x)", _id); // signal number 575 st->print(" at pc=" PTR_FORMAT, p2i(_pc)); 576 } else { 577 if (should_report_bug(_id)) { 578 st->print("Internal Error"); 579 } else { 580 st->print("Out of Memory Error"); 581 } 582 if (_filename != NULL && _lineno > 0) { 583 #ifdef PRODUCT 584 // In product mode chop off pathname? 585 char separator = os::file_separator()[0]; 586 const char p = strrchr(_filename, separator); 587 const char file = p ? p+1 : _filename; 588 #else 589 const char file = _filename; 590 #endif 591 st->print(" (%s:%d)", file, _lineno); 592 } else { 593 st->print(" (0x%x)", _id); 594 } 595 } 596 597 STEP(70, "(printing current thread and pid)") 598 599 // process id, thread id 600 st->print(", pid=%d", os::current_process_id()); 601 st->print(", tid=" UINTX_FORMAT, os::current_thread_id()); 602 st->cr(); 603 604 STEP(80, "(printing error message)") 605 606 if (should_report_bug(_id)) { // already printed the message. 607 // error message 608 if (strlen(_detail_msg) > 0) { 609 st->print_cr("# %s: %s", _message ? _message : "Error", _detail_msg); 610 } else if (_message) { 611 st->print_cr("# Error: %s", _message); 612 } 613 } 614 615 STEP(90, "(printing Java version string)") 616 617 // VM version 618 report_vm_version(st, buf, sizeof(buf)); 619 620 STEP(100, "(printing problematic frame)") 621 622 // Print current frame if we have a context (i.e. it's a crash) 623 if (_context) { 624 st->print_cr("# Problematic frame:"); 625 st->print("# "); 626 frame fr = os::fetch_frame_from_context(_context); 627 fr.print_on_error(st, buf, sizeof(buf)); 628 st->cr(); 629 st->print_cr("#"); 630 } 631 632 STEP(110, "(printing core file information)") 633 st->print("# "); 634 if (CreateCoredumpOnCrash) { 635 if (coredump_status) { 636 st->print("Core dump will be written. Default location: %s", coredump_message); 637 } else { 638 st->print("No core dump will be written. %s", coredump_message); 639 } 640 } else { 641 st->print("CreateCoredumpOnCrash turned off, no core file dumped"); 642 } 643 st->cr(); 644 st->print_cr("#"); 645 646 STEP(120, "(printing bug submit message)") 647 648 if (should_report_bug(_id) && _verbose) { 649 print_bug_submit_message(st, _thread); 650 } 651 652 653 // SUMMARY 654 // Step 200-290 655 if (_verbose) { 656 report_summary(st, buf, sizeof(buf)); 657 } 658 659 STEP(300, "(printing thread)" ) 660 661 if (_verbose) { 662 st->cr(); 663 st->print_cr("--------------- T H R E A D ---------------"); 664 st->cr(); 665 } 666 667 STEP(310, "(printing current thread)" ) 668 669 // current thread 670 if (_verbose) { 671 if (_thread) { 672 st->print("Current thread (" PTR_FORMAT "): ", p2i(_thread)); 673 _thread->print_on_error(st, buf, sizeof(buf)); 674 st->cr(); 675 } else { 676 st->print_cr("Current thread is native thread"); 677 } 678 st->cr(); 679 } 680 681 STEP(320, "(printing current compile task)" ) 682 683 if (_verbose && _thread && _thread->is_Compiler_thread()) { 684 CompilerThread t = (CompilerThread)_thread; 685 if (t->task()) { 686 st->cr(); 687 st->print_cr("Current CompileTask:"); 688 t->task()->print_line_on_error(st, buf, sizeof(buf)); 689 st->cr(); 690 } 691 } 692 693 694 STEP(330, "(printing stack bounds)" ) 695 696 if (_verbose) { 697 st->print("Stack: "); 698 699 address stack_top; 700 size_t stack_size; 701 702 if (_thread) { 703 stack_top = _thread->stack_base(); 704 stack_size = _thread->stack_size(); 705 } else { 706 stack_top = os::current_stack_base(); 707 stack_size = os::current_stack_size(); 708 } 709 710 address stack_bottom = stack_top - stack_size; 711 st->print("[" PTR_FORMAT "," PTR_FORMAT "]", p2i(stack_bottom), p2i(stack_top)); 712 713 frame fr = _context ? os::fetch_frame_from_context(_context) 714 : os::current_frame(); 715 716 if (fr.sp()) { 717 st->print(", sp=" PTR_FORMAT, p2i(fr.sp())); 718 size_t free_stack_size = pointer_delta(fr.sp(), stack_bottom, 1024); 719 st->print(", free space=" SIZE_FORMAT "k", free_stack_size); 720 } 721 722 st->cr(); 723 } 724 725 STEP(340, "(printing native stack)" ) 726 727 if (_verbose) { 728 if (os::platform_print_native_stack(st, _context, buf, sizeof(buf))) { 729 // We have printed the native stack in platform-specific code 730 // Windows/x64 needs special handling. 731 } else { 732 frame fr = _context ? os::fetch_frame_from_context(_context) 733 : os::current_frame(); 734 735 print_native_stack(st, fr, _thread, buf, sizeof(buf)); 736 } 737 } 738 739 STEP(350, "(printing Java stack)" ) 740 741 if (_verbose && _thread && _thread->is_Java_thread()) { 742 print_stack_trace(st, (JavaThread)_thread, buf, sizeof(buf)); 743 } 744 745 STEP(360, "(printing target Java thread stack)" ) 746 747 // printing Java thread stack trace if it is involved in GC crash 748 if (_verbose && _thread && (_thread->is_Named_thread())) { 749 JavaThread* jt = ((NamedThread )_thread)->processed_thread(); 750 if (jt != NULL) { 751 st->print_cr("JavaThread " PTR_FORMAT " (nid = %d) was being processed", p2i(jt), jt->osthread()->thread_id()); 752 print_stack_trace(st, jt, buf, sizeof(buf), true); 753 } 754 } 755 756 STEP(370, "(printing siginfo)" ) 757 758 // signal no, signal code, address that caused the fault 759 if (_verbose && _siginfo) { 760 st->cr(); 761 os::print_siginfo(st, _siginfo); 762 st->cr(); 763 } 764 765 STEP(380, "(printing register info)") 766 767 // decode register contents if possible 768 if (_verbose && _context && Universe::is_fully_initialized()) { 769 os::print_register_info(st, _context); 770 st->cr(); 771 } 772 773 STEP(390, "(printing registers, top of stack, instructions near pc)") 774 775 // registers, top of stack, instructions near pc 776 if (_verbose && _context) { 777 os::print_context(st, _context); 778 st->cr(); 779 } 780 781 STEP(400, "(printing code blob if possible)") 782 783 if (_verbose && _context) { 784 CodeBlob cb = CodeCache::find_blob(_pc); 785 if (cb != NULL) { 786 if (Interpreter::contains(_pc)) { 787 // The interpreter CodeBlob is very large so try to print the codelet instead. 788 InterpreterCodelet* codelet = Interpreter::codelet_containing(_pc); 789 if (codelet != NULL) { 790 codelet->print_on(st); 791 Disassembler::decode(codelet->code_begin(), codelet->code_end(), st); 792 } 793 } else { 794 StubCodeDesc* desc = StubCodeDesc::desc_for(_pc); 795 if (desc != NULL) { 796 desc->print_on(st); 797 Disassembler::decode(desc->begin(), desc->end(), st); 798 } else { 799 Disassembler::decode(cb, st); 800 st->cr(); 801 } 802 } 803 } 804 } 805 806 STEP(410, "(printing VM operation)" ) 807 808 if (_verbose && _thread && _thread->is_VM_thread()) { 809 VMThread* t = (VMThread*)_thread; 810 VM_Operation* op = t->vm_operation(); 811 if (op) { 812 op->print_on_error(st); 813 st->cr(); 814 st->cr(); 815 } 816 } 817 818 if (_verbose) { 819 // PROCESS 820 // Step 500-690 821 report_process(st, buf, sizeof(buf)); 822 823 // SYSTEM 824 // Step 700-790 825 report_system(st, buf, sizeof(buf)); 826 } 827 828 // print a defined marker to show that error handling finished correctly. 829 STEP(800, "(printing end marker)" ) 830 831 if (_verbose) { 832 st->print_cr("END."); 833 } 834 835 END 836 837 # undef BEGIN 838 # undef STEP 839 # undef END 840 } 841 842 // Report for the vm_info_cmd, skipping crash specific code 843 void VMError::report_info(outputStream* st) { 844 845 // don't allocate large buffer on stack 846 static char buf[O_BUFLEN]; 847 848 st->print_cr("# pid=%d", os::current_process_id()); 849 report_vm_version(st, buf, sizeof(buf)); 850 report_summary(st, buf, sizeof(buf)); 851 report_process(st, buf, sizeof(buf)); 852 report_system(st, buf, sizeof(buf)); 853 st->print_cr("END."); 854 } 855 856 volatile intptr_t VMError::first_error_tid = -1; 857 858 // An error could happen before tty is initialized or after it has been 859 // destroyed. Here we use a very simple unbuffered fdStream for printing. 860 // Only out.print_raw() and out.print_raw_cr() should be used, as other 861 // printing methods need to allocate large buffer on stack. To format a 862 // string, use jio_snprintf() with a static buffer or use staticBufferStream. 863 fdStream VMError::out(defaultStream::output_fd()); 864 fdStream VMError::log; // error log used by VMError::report_and_die() 865 866 /** Expand a pattern into a buffer starting at pos and open a file using constructed path / 867 static int expand_and_open(const char pattern, char* buf, size_t buflen, size_t pos) { 868 int fd = -1; 869 if (Arguments::copy_expand_pid(pattern, strlen(pattern), &buf[pos], buflen - pos)) { 870 // the O_EXCL flag will cause the open to fail if the file exists 871 fd = open(buf, O_RDWR | O_CREAT | O_EXCL, 0666); 872 } 873 return fd; 874 } 875 876 /** 877 * Construct file name for a log file and return it's file descriptor. 878 * Name and location depends on pattern, default_pattern params and access 879 * permissions. 880 / 881 static int prepare_log_file(const char pattern, const char* default_pattern, char* buf, size_t buflen) { 882 int fd = -1; 883 884 // If possible, use specified pattern to construct log file name 885 if (pattern != NULL) { 886 fd = expand_and_open(pattern, buf, buflen, 0); 887 } 888 889 // Either user didn't specify, or the user's location failed, 890 // so use the default name in the current directory 891 if (fd == -1) { 892 const char* cwd = os::get_current_directory(buf, buflen); 893 if (cwd != NULL) { 894 size_t pos = strlen(cwd); 895 int fsep_len = jio_snprintf(&buf[pos], buflen-pos, "%s", os::file_separator()); 896 pos += fsep_len; 897 if (fsep_len > 0) { 898 fd = expand_and_open(default_pattern, buf, buflen, pos); 899 } 900 } 901 } 902 903 // try temp directory if it exists. 904 if (fd == -1) { 905 const char* tmpdir = os::get_temp_directory(); 906 if (tmpdir != NULL && strlen(tmpdir) > 0) { 907 int pos = jio_snprintf(buf, buflen, "%s%s", tmpdir, os::file_separator()); 908 if (pos > 0) { 909 fd = expand_and_open(default_pattern, buf, buflen, pos); 910 } 911 } 912 } 913 914 return fd; 915 } 916 917 int VMError::_id; 918 bool VMError::_vm_info_cmd; 919 const char* VMError::_message; 920 char VMError::_detail_msg[1024]; 921 Thread* VMError::_thread; 922 address VMError::_pc; 923 void* VMError::_siginfo; 924 void* VMError::_context; 925 const char* VMError::_filename; 926 int VMError::_lineno; 927 size_t VMError::_size; 928 929 void VMError::print_vm_info(outputStream* st) { 930 _id = VM_INFO; 931 _vm_info_cmd = true; 932 _message = NULL; 933 _thread = NULL; 934 _pc = NULL; 935 _siginfo = NULL; 936 _context = NULL; 937 _filename = NULL; 938 _lineno = 0; 939 _size = 0; 940 _detail_msg[0] = 0; 941 report_info(st); 942 } 943 944 void VMError::report_and_die(Thread* thread, unsigned int sig, address pc, void* siginfo, 945 void* context, const char* detail_fmt, ...) 946 { 947 va_list detail_args; 948 va_start(detail_args, detail_fmt); 949 report_and_die(sig, NULL, detail_fmt, detail_args, thread, pc, siginfo, context, NULL, 0, 0); 950 va_end(detail_args); 951 } 952 953 void VMError::report_and_die(Thread* thread, unsigned int sig, address pc, void* siginfo, void* context) 954 { 955 report_and_die(thread, sig, pc, siginfo, context, "%s", ""); 956 } 957 958 void VMError::report_and_die(const char* message, const char* detail_fmt, ...) 959 { 960 va_list detail_args; 961 va_start(detail_args, detail_fmt); 962 report_and_die(INTERNAL_ERROR, message, detail_fmt, detail_args, NULL, NULL, NULL, NULL, NULL, 0, 0); 963 va_end(detail_args); 964 } 965 966 void VMError::report_and_die(const char* message) 967 { 968 report_and_die(message, "%s", ""); 969 } 970 971 void VMError::report_and_die(Thread* thread, const char* filename, int lineno, const char* message, 972 const char* detail_fmt, va_list detail_args) 973 { 974 report_and_die(INTERNAL_ERROR, message, detail_fmt, detail_args, thread, NULL, NULL, NULL, filename, lineno, 0); 975 } 976 977 void VMError::report_and_die(Thread* thread, const char* filename, int lineno, size_t size, 978 VMErrorType vm_err_type, const char* detail_fmt, va_list detail_args) { 979 report_and_die(vm_err_type, NULL, detail_fmt, detail_args, thread, NULL, NULL, NULL, filename, lineno, size); 980 } 981 982 void VMError::report_and_die(int id, const char* message, const char* detail_fmt, va_list detail_args, 983 Thread* thread, address pc, void* siginfo, void* context, const char* filename, 984 int lineno, size_t size) 985 { 986 // Don't allocate large buffer on stack 987 static char buffer[O_BUFLEN]; 988 989 // How many errors occurred in error handler when reporting first_error. 990 static int recursive_error_count; 991 992 // We will first print a brief message to standard out (verbose = false), 993 // then save detailed information in log file (verbose = true). 994 static bool out_done = false; // done printing to standard out 995 static bool log_done = false; // done saving error log 996 static bool transmit_report_done = false; // done error reporting 997 998 if (SuppressFatalErrorMessage) { 999 os::abort(CreateCoredumpOnCrash); 1000 } 1001 intptr_t mytid = os::current_thread_id(); 1002 if (first_error_tid == -1 && 1003 Atomic::cmpxchg_ptr(mytid, &first_error_tid, -1) == -1) { 1004 1005 _id = id; 1006 _vm_info_cmd = false; 1007 _message = message; 1008 _thread = thread; 1009 _pc = pc; 1010 _siginfo = siginfo; 1011 _context = context; 1012 _filename = filename; 1013 _lineno = lineno; 1014 _size = size; 1015 jio_vsnprintf(_detail_msg, sizeof(_detail_msg), detail_fmt, detail_args); 1016 1017 // first time 1018 set_error_reported(); 1019 1020 if (ShowMessageBoxOnError || PauseAtExit) { 1021 show_message_box(buffer, sizeof(buffer)); 1022 1023 // User has asked JVM to abort. Reset ShowMessageBoxOnError so the 1024 // WatcherThread can kill JVM if the error handler hangs. 1025 ShowMessageBoxOnError = false; 1026 } 1027 1028 os::check_dump_limit(buffer, sizeof(buffer)); 1029 1030 // reset signal handlers or exception filter; make sure recursive crashes 1031 // are handled properly. 1032 reset_signal_handlers(); 1033 1034 } else { 1035 // If UseOsErrorReporting we call this for each level of the call stack 1036 // while searching for the exception handler. Only the first level needs 1037 // to be reported. 1038 if (UseOSErrorReporting && log_done) return; 1039 1040 // This is not the first error, see if it happened in a different thread 1041 // or in the same thread during error reporting. 1042 if (first_error_tid != mytid) { 1043 char msgbuf[64]; 1044 jio_snprintf(msgbuf, sizeof(msgbuf), 1045 "[thread " INTX_FORMAT " also had an error]", 1046 mytid); 1047 out.print_raw_cr(msgbuf); 1048 1049 // error reporting is not MT-safe, block current thread 1050 os::infinite_sleep(); 1051 1052 } else { 1053 if (recursive_error_count++ > 30) { 1054 out.print_raw_cr("[Too many errors, abort]"); 1055 os::die(); 1056 } 1057 1058 jio_snprintf(buffer, sizeof(buffer), 1059 "[error occurred during error reporting %s, id 0x%x]", 1060 _current_step_info, _id); 1061 if (log.is_open()) { 1062 log.cr(); 1063 log.print_raw_cr(buffer); 1064 log.cr(); 1065 } else { 1066 out.cr(); 1067 out.print_raw_cr(buffer); 1068 out.cr(); 1069 } 1070 } 1071 } 1072 1073 // print to screen 1074 if (!out_done) { 1075 staticBufferStream sbs(buffer, sizeof(buffer), &out); 1076 report(&sbs, false); 1077 1078 out_done = true; 1079 1080 _current_step = 0; 1081 _current_step_info = ""; 1082 } 1083 1084 // print to error log file 1085 if (!log_done) { 1086 // see if log file is already open 1087 if (!log.is_open()) { 1088 // open log file 1089 int fd = prepare_log_file(ErrorFile, "hs_err_pid%p.log", buffer, sizeof(buffer)); 1090 if (fd != -1) { 1091 out.print_raw("# An error report file with more information is saved as:\n# "); 1092 out.print_raw_cr(buffer); 1093 1094 log.set_fd(fd); 1095 } else { 1096 out.print_raw_cr("# Can not save log file, dump to screen.."); 1097 log.set_fd(defaultStream::output_fd()); 1098 /* Error reporting currently needs dumpfile. 1099 * Maybe implement direct streaming in the future./ 1100 transmit_report_done = true; 1101 } 1102 } 1103 1104 staticBufferStream sbs(buffer, O_BUFLEN, &log); 1105 report(&sbs, true); 1106 _current_step = 0; 1107 _current_step_info = ""; 1108 1109 // Run error reporting to determine whether or not to report the crash. 1110 if (!transmit_report_done && should_report_bug(_id)) { 1111 transmit_report_done = true; 1112 const int fd2 = ::dup(log.fd()); 1113 FILE const hs_err = ::fdopen(fd2, "r"); 1114 if (NULL != hs_err) { 1115 ErrorReporter er; 1116 er.call(hs_err, buffer, O_BUFLEN); 1117 } 1118 ::fclose(hs_err); 1119 } 1120 1121 if (log.fd() != defaultStream::output_fd()) { 1122 close(log.fd()); 1123 } 1124 1125 log.set_fd(-1); 1126 log_done = true; 1127 } 1128 1129 1130 static bool skip_OnError = false; 1131 if (!skip_OnError && OnError && OnError[0]) { 1132 skip_OnError = true; 1133 1134 out.print_raw_cr("#"); 1135 out.print_raw ("# -XX:OnError=""); 1136 out.print_raw (OnError); 1137 out.print_raw_cr("""); 1138 1139 char* cmd; 1140 const char* ptr = OnError; 1141 while ((cmd = next_OnError_command(buffer, sizeof(buffer), &ptr)) != NULL){ 1142 out.print_raw ("# Executing "); 1143 #if defined(LINUX) || defined(_ALLBSD_SOURCE) 1144 out.print_raw ("/bin/sh -c "); 1145 #elif defined(SOLARIS) 1146 out.print_raw ("/usr/bin/sh -c "); 1147 #endif 1148 out.print_raw ("""); 1149 out.print_raw (cmd); 1150 out.print_raw_cr("" ..."); 1151 1152 if (os::fork_and_exec(cmd) < 0) { 1153 out.print_cr("os::fork_and_exec failed: %s (%d)", strerror(errno), errno); 1154 } 1155 } 1156 1157 // done with OnError 1158 OnError = NULL; 1159 } 1160 1161 static bool skip_replay = ReplayCompiles; // Do not overwrite file during replay 1162 if (DumpReplayDataOnError && _thread && _thread->is_Compiler_thread() && !skip_replay) { 1163 skip_replay = true; 1164 ciEnv* env = ciEnv::current(); 1165 if (env != NULL) { 1166 int fd = prepare_log_file(ReplayDataFile, "replay_pid%p.log", buffer, sizeof(buffer)); 1167 if (fd != -1) { 1168 FILE* replay_data_file = os::open(fd, "w"); 1169 if (replay_data_file != NULL) { 1170 fileStream replay_data_stream(replay_data_file, /need_close=/true); 1171 env->dump_replay_data_unsafe(&replay_data_stream); 1172 out.print_raw("#\n# Compiler replay data is saved as:\n# "); 1173 out.print_raw_cr(buffer); 1174 } else { 1175 out.print_raw("#\n# Can't open file to dump replay data. Error: "); 1176 out.print_raw_cr(strerror(os::get_last_error())); 1177 } 1178 } 1179 } 1180 } 1181 1182 static bool skip_bug_url = !should_report_bug(_id); 1183 if (!skip_bug_url) { 1184 skip_bug_url = true; 1185 1186 out.print_raw_cr("#"); 1187 print_bug_submit_message(&out, _thread); 1188 } 1189 1190 if (!UseOSErrorReporting) { 1191 // os::abort() will call abort hooks, try it first. 1192 static bool skip_os_abort = false; 1193 if (!skip_os_abort) { 1194 skip_os_abort = true; 1195 bool dump_core = should_report_bug(_id); 1196 os::abort(dump_core && CreateCoredumpOnCrash, _siginfo, _context); 1197 } 1198 1199 // if os::abort() doesn't abort, try os::die(); 1200 os::die(); 1201 } 1202 } 1203 1204 /* 1205 * OnOutOfMemoryError scripts/commands executed while VM is a safepoint - this 1206 * ensures utilities such as jmap can observe the process is a consistent state. 1207 / 1208 class VM_ReportJavaOutOfMemory : public VM_Operation { 1209 private: 1210 const char _message; 1211 public: 1212 VM_ReportJavaOutOfMemory(const char* message) { _message = message; } 1213 VMOp_Type type() const { return VMOp_ReportJavaOutOfMemory; } 1214 void doit(); 1215 }; 1216 1217 void VM_ReportJavaOutOfMemory::doit() { 1218 // Don't allocate large buffer on stack 1219 static char buffer[O_BUFLEN]; 1220 1221 tty->print_cr("#"); 1222 tty->print_cr("# java.lang.OutOfMemoryError: %s", _message); 1223 tty->print_cr("# -XX:OnOutOfMemoryError="%s"", OnOutOfMemoryError); 1224 1225 // make heap parsability 1226 Universe::heap()->ensure_parsability(false); // no need to retire TLABs 1227 1228 char* cmd; 1229 const char* ptr = OnOutOfMemoryError; 1230 while ((cmd = next_OnError_command(buffer, sizeof(buffer), &ptr)) != NULL){ 1231 tty->print("# Executing "); 1232 #if defined(LINUX) 1233 tty->print ("/bin/sh -c "); 1234 #elif defined(SOLARIS) 1235 tty->print ("/usr/bin/sh -c "); 1236 #endif 1237 tty->print_cr(""%s"...", cmd); 1238 1239 if (os::fork_and_exec(cmd) < 0) { 1240 tty->print_cr("os::fork_and_exec failed: %s (%d)", strerror(errno), errno); 1241 } 1242 } 1243 } 1244 1245 void VMError::report_java_out_of_memory(const char* message) { 1246 if (OnOutOfMemoryError && OnOutOfMemoryError[0]) { 1247 MutexLocker ml(Heap_lock); 1248 VM_ReportJavaOutOfMemory op(message); 1249 VMThread::execute(&op); 1250 } 1251 }