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 "compiler/compileBroker.hpp"
28 #include "gc_interface/collectedHeap.hpp"
29 #include "prims/whitebox.hpp"
30 #include "runtime/arguments.hpp"
31 #include "runtime/frame.inline.hpp"
32 #include "runtime/init.hpp"
33 #include "runtime/os.hpp"
34 #include "runtime/thread.inline.hpp"
35 #include "runtime/vmThread.hpp"
36 #include "runtime/vm_operations.hpp"
37 #include "services/memTracker.hpp"
38 #include "utilities/debug.hpp"
39 #include "utilities/decoder.hpp"
40 #include "utilities/defaultStream.hpp"
41 #include "utilities/errorReporter.hpp"
42 #include "utilities/events.hpp"
43 #include "utilities/top.hpp"
44 #include "utilities/vmError.hpp"
45
46 PRAGMA_FORMAT_MUTE_WARNINGS_FOR_GCC
47
48 // List of environment variables that should be reported in error log file.
49 const char *env_list[] = {
50 // All platforms
51 "JAVA_HOME", "JRE_HOME", "JAVA_TOOL_OPTIONS", "_JAVA_OPTIONS", "CLASSPATH",
52 "JAVA_COMPILER", "PATH", "USERNAME",
53
54 // Env variables that are defined on Solaris/Linux/BSD
55 "LD_LIBRARY_PATH", "LD_PRELOAD", "SHELL", "DISPLAY",
56 "HOSTTYPE", "OSTYPE", "ARCH", "MACHTYPE",
57
58 // defined on Linux
59 "LD_ASSUME_KERNEL", "_JAVA_SR_SIGNUM",
60
61 // defined on Darwin
62 "DYLD_LIBRARY_PATH", "DYLD_FALLBACK_LIBRARY_PATH",
63 "DYLD_FRAMEWORK_PATH", "DYLD_FALLBACK_FRAMEWORK_PATH",
64 "DYLD_INSERT_LIBRARIES",
65
66 // defined on Windows
67 "OS", "PROCESSOR_IDENTIFIER", "_ALT_JAVA_HOME_DIR",
68
69 (const char *)0
70 };
71
72 // Fatal error handler for internal errors and crashes.
73 //
74 // The default behavior of fatal error handler is to print a brief message
75 // to standard out (defaultStream::output_fd()), then save detailed information
76 // into an error report file (hs_err_pid<pid>.log) and abort VM. If multiple
77 // threads are having troubles at the same time, only one error is reported.
78 // The thread that is reporting error will abort VM when it is done, all other
79 // threads are blocked forever inside report_and_die().
80
81 // Constructor for crashes
82 VMError::VMError(Thread* thread, unsigned int sig, address pc, void* siginfo, void* context) {
83 _thread = thread;
84 _id = sig;
85 _pc = pc;
86 _siginfo = siginfo;
87 _context = context;
88
89 _verbose = false;
90 _current_step = 0;
91 _current_step_info = NULL;
92
93 _message = NULL;
94 _detail_msg = NULL;
95 _filename = NULL;
96 _lineno = 0;
97
98 _size = 0;
99 }
100
101 // Constructor for internal errors
102 VMError::VMError(Thread* thread, const char* filename, int lineno,
103 const char* message, const char * detail_msg)
104 {
105 _thread = thread;
106 _id = INTERNAL_ERROR; // Value that's not an OS exception/signal
107 _filename = filename;
108 _lineno = lineno;
109 _message = message;
110 _detail_msg = detail_msg;
111
112 _verbose = false;
113 _current_step = 0;
114 _current_step_info = NULL;
115
116 _pc = NULL;
117 _siginfo = NULL;
118 _context = NULL;
119
120 _size = 0;
121 }
122
123 // Constructor for OOM errors
124 VMError::VMError(Thread* thread, const char* filename, int lineno, size_t size,
125 VMErrorType vm_err_type, const char* message) {
126 _thread = thread;
127 _id = vm_err_type; // Value that's not an OS exception/signal
128 _filename = filename;
129 _lineno = lineno;
130 _message = message;
131 _detail_msg = NULL;
132
133 _verbose = false;
134 _current_step = 0;
135 _current_step_info = NULL;
136
137 _pc = NULL;
138 _siginfo = NULL;
139 _context = NULL;
140
141 _size = size;
142 }
143
144
145 // Constructor for non-fatal errors
146 VMError::VMError(const char* message) {
147 _thread = NULL;
148 _id = INTERNAL_ERROR; // Value that's not an OS exception/signal
149 _filename = NULL;
150 _lineno = 0;
151 _message = message;
152 _detail_msg = NULL;
153
154 _verbose = false;
155 _current_step = 0;
156 _current_step_info = NULL;
157
158 _pc = NULL;
159 _siginfo = NULL;
160 _context = NULL;
161
162 _size = 0;
163 }
164
165 // -XX:OnError=<string>, where <string> can be a list of commands, separated
166 // by ';'. "%p" is replaced by current process id (pid); "%%" is replaced by
167 // a single "%". Some examples:
168 //
169 // -XX:OnError="pmap %p" // show memory map
170 // -XX:OnError="gcore %p; dbx - %p" // dump core and launch debugger
171 // -XX:OnError="cat hs_err_pid%p.log | mail my_email@sun.com"
172 // -XX:OnError="kill -9 %p" // ?#!@#
173
174 // A simple parser for -XX:OnError, usage:
175 // ptr = OnError;
176 // while ((cmd = next_OnError_command(buffer, sizeof(buffer), &ptr) != NULL)
177 // ... ...
178 static char* next_OnError_command(char* buf, int buflen, const char** ptr) {
179 if (ptr == NULL || *ptr == NULL) return NULL;
180
181 const char* cmd = *ptr;
182
183 // skip leading blanks or ';'
184 while (*cmd == ' ' || *cmd == ';') cmd++;
185
186 if (*cmd == '\0') return NULL;
187
188 const char * cmdend = cmd;
189 while (*cmdend != '\0' && *cmdend != ';') cmdend++;
190
191 Arguments::copy_expand_pid(cmd, cmdend - cmd, buf, buflen);
192
193 *ptr = (*cmdend == '\0' ? cmdend : cmdend + 1);
194 return buf;
195 }
196
197
198 static void print_bug_submit_message(outputStream *out, Thread *thread) {
199 if (out == NULL) return;
200 out->print_raw_cr("# If you would like to submit a bug report, please visit:");
201 out->print_raw ("# ");
202 out->print_raw_cr(Arguments::java_vendor_url_bug());
203 // If the crash is in native code, encourage user to submit a bug to the
204 // provider of that code.
205 if (thread && thread->is_Java_thread() &&
206 !thread->is_hidden_from_external_view()) {
207 JavaThread* jt = (JavaThread*)thread;
208 if (jt->thread_state() == _thread_in_native) {
209 out->print_cr("# The crash happened outside the Java Virtual Machine in native code.\n# See problematic frame for where to report the bug.");
210 }
211 }
212 out->print_raw_cr("#");
213 }
214
215 bool VMError::coredump_status;
216 char VMError::coredump_message[O_BUFLEN];
217
218 void VMError::report_coredump_status(const char* message, bool status) {
219 coredump_status = status;
220 strncpy(coredump_message, message, sizeof(coredump_message));
221 coredump_message[sizeof(coredump_message)-1] = 0;
222 }
223
224
225 // Return a string to describe the error
226 char* VMError::error_string(char* buf, int buflen) {
227 char signame_buf[64];
228 const char *signame = os::exception_name(_id, signame_buf, sizeof(signame_buf));
229
230 if (signame) {
231 jio_snprintf(buf, buflen,
232 "%s (0x%x) at pc=" PTR_FORMAT ", pid=%d, tid=" INTPTR_FORMAT,
233 signame, _id, _pc,
234 os::current_process_id(), os::current_thread_id());
235 } else if (_filename != NULL && _lineno > 0) {
236 // skip directory names
237 char separator = os::file_separator()[0];
238 const char *p = strrchr(_filename, separator);
239 int n = jio_snprintf(buf, buflen,
240 "Internal Error at %s:%d, pid=%d, tid=" INTPTR_FORMAT,
241 p ? p + 1 : _filename, _lineno,
242 os::current_process_id(), os::current_thread_id());
243 if (n >= 0 && n < buflen && _message) {
244 if (_detail_msg) {
245 jio_snprintf(buf + n, buflen - n, "%s%s: %s",
246 os::line_separator(), _message, _detail_msg);
247 } else {
248 jio_snprintf(buf + n, buflen - n, "%sError: %s",
249 os::line_separator(), _message);
250 }
251 }
252 } else {
253 jio_snprintf(buf, buflen,
254 "Internal Error (0x%x), pid=%d, tid=" INTPTR_FORMAT,
255 _id, os::current_process_id(), os::current_thread_id());
256 }
257
258 return buf;
259 }
260
261 void VMError::print_stack_trace(outputStream* st, JavaThread* jt,
262 char* buf, int buflen, bool verbose) {
263 #ifdef ZERO
264 if (jt->zero_stack()->sp() && jt->top_zero_frame()) {
265 // StackFrameStream uses the frame anchor, which may not have
266 // been set up. This can be done at any time in Zero, however,
267 // so if it hasn't been set up then we just set it up now and
268 // clear it again when we're done.
269 bool has_last_Java_frame = jt->has_last_Java_frame();
270 if (!has_last_Java_frame)
271 jt->set_last_Java_frame();
272 st->print("Java frames:");
273
274 // If the top frame is a Shark frame and the frame anchor isn't
275 // set up then it's possible that the information in the frame
276 // is garbage: it could be from a previous decache, or it could
277 // simply have never been written. So we print a warning...
278 StackFrameStream sfs(jt);
279 if (!has_last_Java_frame && !sfs.is_done()) {
280 if (sfs.current()->zeroframe()->is_shark_frame()) {
281 st->print(" (TOP FRAME MAY BE JUNK)");
282 }
283 }
284 st->cr();
285
286 // Print the frames
287 for(int i = 0; !sfs.is_done(); sfs.next(), i++) {
288 sfs.current()->zero_print_on_error(i, st, buf, buflen);
289 st->cr();
290 }
291
292 // Reset the frame anchor if necessary
293 if (!has_last_Java_frame)
294 jt->reset_last_Java_frame();
295 }
296 #else
297 if (jt->has_last_Java_frame()) {
298 st->print_cr("Java frames: (J=compiled Java code, j=interpreted, Vv=VM code)");
299 for(StackFrameStream sfs(jt); !sfs.is_done(); sfs.next()) {
300 sfs.current()->print_on_error(st, buf, buflen, verbose);
301 st->cr();
302 }
303 }
304 #endif // ZERO
305 }
306
307 // This is the main function to report a fatal error. Only one thread can
308 // call this function, so we don't need to worry about MT-safety. But it's
309 // possible that the error handler itself may crash or die on an internal
310 // error, for example, when the stack/heap is badly damaged. We must be
311 // able to handle recursive errors that happen inside error handler.
312 //
313 // Error reporting is done in several steps. If a crash or internal error
314 // occurred when reporting an error, the nested signal/exception handler
315 // can skip steps that are already (or partially) done. Error reporting will
316 // continue from the next step. This allows us to retrieve and print
317 // information that may be unsafe to get after a fatal error. If it happens,
318 // you may find nested report_and_die() frames when you look at the stack
319 // in a debugger.
320 //
321 // In general, a hang in error handler is much worse than a crash or internal
322 // error, as it's harder to recover from a hang. Deadlock can happen if we
323 // try to grab a lock that is already owned by current thread, or if the
324 // owner is blocked forever (e.g. in os::infinite_sleep()). If possible, the
325 // error handler and all the functions it called should avoid grabbing any
326 // lock. An important thing to notice is that memory allocation needs a lock.
327 //
328 // We should avoid using large stack allocated buffers. Many errors happen
329 // when stack space is already low. Making things even worse is that there
330 // could be nested report_and_die() calls on stack (see above). Only one
331 // thread can report error, so large buffers are statically allocated in data
332 // segment.
333
334 void VMError::report(outputStream* st) {
335 # define BEGIN if (_current_step == 0) { _current_step = 1;
336 # define STEP(n, s) } if (_current_step < n) { _current_step = n; _current_step_info = s;
337 # define END }
338
339 // don't allocate large buffer on stack
340 static char buf[O_BUFLEN];
341
342 BEGIN
343
344 STEP(10, "(printing fatal error message)")
345
346 st->print_cr("#");
347 if (should_report_bug(_id)) {
348 st->print_cr("# A fatal error has been detected by the Java Runtime Environment:");
349 } else {
350 st->print_cr("# There is insufficient memory for the Java "
351 "Runtime Environment to continue.");
352 }
353
354 STEP(15, "(printing type of error)")
355
356 switch(_id) {
357 case OOM_MALLOC_ERROR:
358 case OOM_MMAP_ERROR:
359 if (_size) {
360 st->print("# Native memory allocation ");
361 st->print((_id == (int)OOM_MALLOC_ERROR) ? "(malloc) failed to allocate " :
362 "(mmap) failed to map ");
363 jio_snprintf(buf, sizeof(buf), SIZE_FORMAT, _size);
364 st->print("%s", buf);
365 st->print(" bytes");
366 if (_message != NULL) {
367 st->print(" for ");
368 st->print("%s", _message);
369 }
370 st->cr();
371 } else {
372 if (_message != NULL)
373 st->print("# ");
374 st->print_cr("%s", _message);
375 }
376 // In error file give some solutions
377 if (_verbose) {
378 st->print_cr("# Possible reasons:");
379 st->print_cr("# The system is out of physical RAM or swap space");
380 st->print_cr("# In 32 bit mode, the process size limit was hit");
381 st->print_cr("# Possible solutions:");
382 st->print_cr("# Reduce memory load on the system");
383 st->print_cr("# Increase physical memory or swap space");
384 st->print_cr("# Check if swap backing store is full");
385 st->print_cr("# Use 64 bit Java on a 64 bit OS");
386 st->print_cr("# Decrease Java heap size (-Xmx/-Xms)");
387 st->print_cr("# Decrease number of Java threads");
388 st->print_cr("# Decrease Java thread stack sizes (-Xss)");
389 st->print_cr("# Set larger code cache with -XX:ReservedCodeCacheSize=");
390 st->print_cr("# This output file may be truncated or incomplete.");
391 } else {
392 return; // that's enough for the screen
393 }
394 break;
395 case INTERNAL_ERROR:
396 default:
397 break;
398 }
399
400 STEP(20, "(printing exception/signal name)")
401
402 st->print_cr("#");
403 st->print("# ");
404 // Is it an OS exception/signal?
405 if (os::exception_name(_id, buf, sizeof(buf))) {
406 st->print("%s", buf);
407 st->print(" (0x%x)", _id); // signal number
408 st->print(" at pc=" PTR_FORMAT, _pc);
409 } else {
410 if (should_report_bug(_id)) {
411 st->print("Internal Error");
412 } else {
413 st->print("Out of Memory Error");
414 }
415 if (_filename != NULL && _lineno > 0) {
416 #ifdef PRODUCT
417 // In product mode chop off pathname?
418 char separator = os::file_separator()[0];
419 const char *p = strrchr(_filename, separator);
420 const char *file = p ? p+1 : _filename;
421 #else
422 const char *file = _filename;
423 #endif
424 size_t len = strlen(file);
425 size_t buflen = sizeof(buf);
426
427 strncpy(buf, file, buflen);
428 if (len + 10 < buflen) {
429 sprintf(buf + len, ":%d", _lineno);
430 }
431 st->print(" (%s)", buf);
432 } else {
433 st->print(" (0x%x)", _id);
434 }
435 }
436
437 STEP(30, "(printing current thread and pid)")
438
439 // process id, thread id
440 st->print(", pid=%d", os::current_process_id());
441 st->print(", tid=" INTPTR_FORMAT, os::current_thread_id());
442 st->cr();
443
444 STEP(40, "(printing error message)")
445
446 if (should_report_bug(_id)) { // already printed the message.
447 // error message
448 if (_detail_msg) {
449 st->print_cr("# %s: %s", _message ? _message : "Error", _detail_msg);
450 } else if (_message) {
451 st->print_cr("# Error: %s", _message);
452 }
453 }
454
455 STEP(50, "(printing Java version string)")
456
457 // VM version
458 st->print_cr("#");
459 JDK_Version::current().to_string(buf, sizeof(buf));
460 const char* runtime_name = JDK_Version::runtime_name() != NULL ?
461 JDK_Version::runtime_name() : "";
462 const char* runtime_version = JDK_Version::runtime_version() != NULL ?
463 JDK_Version::runtime_version() : "";
464 st->print_cr("# JRE version: %s (%s) (build %s)", runtime_name, buf, runtime_version);
465 st->print_cr("# Java VM: %s (%s %s %s %s)",
466 Abstract_VM_Version::vm_name(),
467 Abstract_VM_Version::vm_release(),
468 Abstract_VM_Version::vm_info_string(),
469 Abstract_VM_Version::vm_platform_string(),
470 UseCompressedOops ? "compressed oops" : ""
471 );
472
473 STEP(60, "(printing problematic frame)")
474
475 // Print current frame if we have a context (i.e. it's a crash)
476 if (_context) {
477 st->print_cr("# Problematic frame:");
478 st->print("# ");
479 frame fr = os::fetch_frame_from_context(_context);
480 fr.print_on_error(st, buf, sizeof(buf));
481 st->cr();
482 st->print_cr("#");
483 }
484 STEP(63, "(printing core file information)")
485 st->print("# ");
486 if (coredump_status) {
487 st->print("Core dump written. Default location: %s", coredump_message);
488 } else {
489 st->print("Failed to write core dump. %s", coredump_message);
490 }
491 st->cr();
492 st->print_cr("#");
493
494 STEP(65, "(printing bug submit message)")
495
496 if (should_report_bug(_id) && _verbose) {
497 print_bug_submit_message(st, _thread);
498 }
499
500 STEP(70, "(printing thread)" )
501
502 if (_verbose) {
503 st->cr();
504 st->print_cr("--------------- T H R E A D ---------------");
505 st->cr();
506 }
507
508 STEP(80, "(printing current thread)" )
509
510 // current thread
511 if (_verbose) {
512 if (_thread) {
513 st->print("Current thread (" PTR_FORMAT "): ", _thread);
514 _thread->print_on_error(st, buf, sizeof(buf));
515 st->cr();
516 } else {
517 st->print_cr("Current thread is native thread");
518 }
519 st->cr();
520 }
521
522 STEP(90, "(printing siginfo)" )
523
524 // signal no, signal code, address that caused the fault
525 if (_verbose && _siginfo) {
526 os::print_siginfo(st, _siginfo);
527 st->cr();
528 }
529
530 STEP(100, "(printing registers, top of stack, instructions near pc)")
531
532 // registers, top of stack, instructions near pc
533 if (_verbose && _context) {
534 os::print_context(st, _context);
535 st->cr();
536 }
537
538 STEP(105, "(printing register info)")
539
540 // decode register contents if possible
541 if (_verbose && _context && Universe::is_fully_initialized()) {
542 os::print_register_info(st, _context);
543 st->cr();
544 }
545
546 STEP(110, "(printing stack bounds)" )
547
548 if (_verbose) {
549 st->print("Stack: ");
550
551 address stack_top;
552 size_t stack_size;
553
554 if (_thread) {
555 stack_top = _thread->stack_base();
556 stack_size = _thread->stack_size();
557 } else {
558 stack_top = os::current_stack_base();
559 stack_size = os::current_stack_size();
560 }
561
562 address stack_bottom = stack_top - stack_size;
563 st->print("[" PTR_FORMAT "," PTR_FORMAT "]", stack_bottom, stack_top);
564
565 frame fr = _context ? os::fetch_frame_from_context(_context)
566 : os::current_frame();
567
568 if (fr.sp()) {
569 st->print(", sp=" PTR_FORMAT, fr.sp());
570 size_t free_stack_size = pointer_delta(fr.sp(), stack_bottom, 1024);
571 st->print(", free space=" SIZE_FORMAT "k", free_stack_size);
572 }
573
574 st->cr();
575 }
576
577 STEP(120, "(printing native stack)" )
578
579 if (_verbose) {
580 if (os::platform_print_native_stack(st, _context, buf, sizeof(buf))) {
581 // We have printed the native stack in platform-specific code
582 // Windows/x64 needs special handling.
583 } else {
584 frame fr = _context ? os::fetch_frame_from_context(_context)
585 : os::current_frame();
586
587 print_native_stack(st, fr, _thread, buf, sizeof(buf));
588 }
589 }
590
591 STEP(130, "(printing Java stack)" )
592
593 if (_verbose && _thread && _thread->is_Java_thread()) {
594 print_stack_trace(st, (JavaThread*)_thread, buf, sizeof(buf));
595 }
596
597 STEP(135, "(printing target Java thread stack)" )
598
599 // printing Java thread stack trace if it is involved in GC crash
600 if (_verbose && _thread && (_thread->is_Named_thread())) {
601 JavaThread* jt = ((NamedThread *)_thread)->processed_thread();
602 if (jt != NULL) {
603 st->print_cr("JavaThread " PTR_FORMAT " (nid = " UINTX_FORMAT ") was being processed", jt, jt->osthread()->thread_id());
604 print_stack_trace(st, jt, buf, sizeof(buf), true);
605 }
606 }
607
608 STEP(140, "(printing VM operation)" )
609
610 if (_verbose && _thread && _thread->is_VM_thread()) {
611 VMThread* t = (VMThread*)_thread;
612 VM_Operation* op = t->vm_operation();
613 if (op) {
614 op->print_on_error(st);
615 st->cr();
616 st->cr();
617 }
618 }
619
620 STEP(150, "(printing current compile task)" )
621
622 if (_verbose && _thread && _thread->is_Compiler_thread()) {
623 CompilerThread* t = (CompilerThread*)_thread;
624 if (t->task()) {
625 st->cr();
626 st->print_cr("Current CompileTask:");
627 t->task()->print_line_on_error(st, buf, sizeof(buf));
628 st->cr();
629 }
630 }
631
632 STEP(160, "(printing process)" )
633
634 if (_verbose) {
635 st->cr();
636 st->print_cr("--------------- P R O C E S S ---------------");
637 st->cr();
638 }
639
640 STEP(170, "(printing all threads)" )
641
642 // all threads
643 if (_verbose && _thread) {
644 Threads::print_on_error(st, _thread, buf, sizeof(buf));
645 st->cr();
646 }
647
648 STEP(175, "(printing VM state)" )
649
650 if (_verbose) {
651 // Safepoint state
652 st->print("VM state:");
653
654 if (SafepointSynchronize::is_synchronizing()) st->print("synchronizing");
655 else if (SafepointSynchronize::is_at_safepoint()) st->print("at safepoint");
656 else st->print("not at safepoint");
657
658 // Also see if error occurred during initialization or shutdown
659 if (!Universe::is_fully_initialized()) {
660 st->print(" (not fully initialized)");
661 } else if (VM_Exit::vm_exited()) {
662 st->print(" (shutting down)");
663 } else {
664 st->print(" (normal execution)");
665 }
666 st->cr();
667 st->cr();
668 }
669
670 STEP(180, "(printing owned locks on error)" )
671
672 // mutexes/monitors that currently have an owner
673 if (_verbose) {
674 print_owned_locks_on_error(st);
675 st->cr();
676 }
677
678 STEP(182, "(printing number of OutOfMemoryError and StackOverflow exceptions)")
679
680 if (_verbose && Exceptions::has_exception_counts()) {
681 st->print_cr("OutOfMemory and StackOverflow Exception counts:");
682 Exceptions::print_exception_counts_on_error(st);
683 st->cr();
684 }
685
686 STEP(185, "(printing compressed oops mode")
687
688 if (_verbose && UseCompressedOops) {
689 Universe::print_compressed_oops_mode(st);
690 if (UseCompressedClassPointers) {
691 Metaspace::print_compressed_class_space(st);
692 }
693 st->cr();
694 }
695
696 STEP(190, "(printing heap information)" )
697
698 if (_verbose && Universe::is_fully_initialized()) {
699 Universe::heap()->print_on_error(st);
700 st->cr();
701
702 st->print_cr("Polling page: " INTPTR_FORMAT, os::get_polling_page());
703 st->cr();
704 }
705
706 STEP(195, "(printing code cache information)" )
707
708 if (_verbose && Universe::is_fully_initialized()) {
709 // print code cache information before vm abort
710 CodeCache::print_summary(st);
711 st->cr();
712 }
713
714 STEP(200, "(printing ring buffers)" )
715
716 if (_verbose) {
717 Events::print_all(st);
718 st->cr();
719 }
720
721 STEP(205, "(printing dynamic libraries)" )
722
723 if (_verbose) {
724 // dynamic libraries, or memory map
725 os::print_dll_info(st);
726 st->cr();
727 }
728
729 STEP(210, "(printing VM options)" )
730
731 if (_verbose) {
732 // VM options
733 Arguments::print_on(st);
734 st->cr();
735 }
736
737 STEP(215, "(printing warning if internal testing API used)" )
738
739 if (WhiteBox::used()) {
740 st->print_cr("Unsupported internal testing APIs have been used.");
741 st->cr();
742 }
743
744 STEP(220, "(printing environment variables)" )
745
746 if (_verbose) {
747 os::print_environment_variables(st, env_list, buf, sizeof(buf));
748 st->cr();
749 }
750
751 STEP(225, "(printing signal handlers)" )
752
753 if (_verbose) {
754 os::print_signal_handlers(st, buf, sizeof(buf));
755 st->cr();
756 }
757
758 STEP(228, "(Native Memory Tracking)" )
759 if (_verbose) {
760 MemTracker::error_report(st);
761 }
762
763 STEP(230, "" )
764
765 if (_verbose) {
766 st->cr();
767 st->print_cr("--------------- S Y S T E M ---------------");
768 st->cr();
769 }
770
771 STEP(240, "(printing OS information)" )
772
773 if (_verbose) {
774 os::print_os_info(st);
775 st->cr();
776 }
777
778 STEP(250, "(printing CPU info)" )
779 if (_verbose) {
780 os::print_cpu_info(st);
781 st->cr();
782 }
783
784 STEP(260, "(printing memory info)" )
785
786 if (_verbose) {
787 os::print_memory_info(st);
788 st->cr();
789 }
790
791 STEP(270, "(printing internal vm info)" )
792
793 if (_verbose) {
794 st->print_cr("vm_info: %s", Abstract_VM_Version::internal_vm_info_string());
795 st->cr();
796 }
797
798 STEP(280, "(printing date and time)" )
799
800 if (_verbose) {
801 os::print_date_and_time(st, buf, sizeof(buf));
802 st->cr();
803 }
804
805 END
806
807 # undef BEGIN
808 # undef STEP
809 # undef END
810 }
811
812 VMError* volatile VMError::first_error = NULL;
813 volatile jlong VMError::first_error_tid = -1;
814
815 // An error could happen before tty is initialized or after it has been
816 // destroyed. Here we use a very simple unbuffered fdStream for printing.
817 // Only out.print_raw() and out.print_raw_cr() should be used, as other
818 // printing methods need to allocate large buffer on stack. To format a
819 // string, use jio_snprintf() with a static buffer or use staticBufferStream.
820 fdStream VMError::out(defaultStream::output_fd());
821 fdStream VMError::log; // error log used by VMError::report_and_die()
822
823 /** Expand a pattern into a buffer starting at pos and open a file using constructed path */
824 static int expand_and_open(const char* pattern, char* buf, size_t buflen, size_t pos) {
825 int fd = -1;
826 if (Arguments::copy_expand_pid(pattern, strlen(pattern), &buf[pos], buflen - pos)) {
827 // the O_EXCL flag will cause the open to fail if the file exists
828 fd = open(buf, O_RDWR | O_CREAT | O_EXCL, 0666);
829 }
830 return fd;
831 }
832
833 /**
834 * Construct file name for a log file and return it's file descriptor.
835 * Name and location depends on pattern, default_pattern params and access
836 * permissions.
837 */
838 static int prepare_log_file(const char* pattern, const char* default_pattern, char* buf, size_t buflen) {
839 int fd = -1;
840
841 // If possible, use specified pattern to construct log file name
842 if (pattern != NULL) {
843 fd = expand_and_open(pattern, buf, buflen, 0);
844 }
845
846 // Either user didn't specify, or the user's location failed,
847 // so use the default name in the current directory
848 if (fd == -1) {
849 const char* cwd = os::get_current_directory(buf, buflen);
850 if (cwd != NULL) {
851 size_t pos = strlen(cwd);
852 int fsep_len = jio_snprintf(&buf[pos], buflen-pos, "%s", os::file_separator());
853 pos += fsep_len;
854 if (fsep_len > 0) {
855 fd = expand_and_open(default_pattern, buf, buflen, pos);
856 }
857 }
858 }
859
860 // try temp directory if it exists.
861 if (fd == -1) {
862 const char* tmpdir = os::get_temp_directory();
863 if (tmpdir != NULL && strlen(tmpdir) > 0) {
864 int pos = jio_snprintf(buf, buflen, "%s%s", tmpdir, os::file_separator());
865 if (pos > 0) {
866 fd = expand_and_open(default_pattern, buf, buflen, pos);
867 }
868 }
869 }
870
871 return fd;
872 }
873
874 void VMError::report_and_die() {
875 // Don't allocate large buffer on stack
876 static char buffer[O_BUFLEN];
877
878 // How many errors occurred in error handler when reporting first_error.
879 static int recursive_error_count;
880
881 // We will first print a brief message to standard out (verbose = false),
882 // then save detailed information in log file (verbose = true).
883 static bool out_done = false; // done printing to standard out
884 static bool log_done = false; // done saving error log
885 static bool transmit_report_done = false; // done error reporting
886
887 if (SuppressFatalErrorMessage) {
888 os::abort();
889 }
890 jlong mytid = os::current_thread_id();
891 if (first_error == NULL &&
892 Atomic::cmpxchg_ptr(this, &first_error, NULL) == NULL) {
893
894 // first time
895 first_error_tid = mytid;
896 set_error_reported();
897
898 if (ShowMessageBoxOnError || PauseAtExit) {
899 show_message_box(buffer, sizeof(buffer));
900
901 // User has asked JVM to abort. Reset ShowMessageBoxOnError so the
902 // WatcherThread can kill JVM if the error handler hangs.
903 ShowMessageBoxOnError = false;
904 }
905
906 // Write a minidump on Windows, check core dump limits on Linux/Solaris
907 os::check_or_create_dump(_siginfo, _context, buffer, sizeof(buffer));
908
909 // reset signal handlers or exception filter; make sure recursive crashes
910 // are handled properly.
911 reset_signal_handlers();
912
913 } else {
914 // If UseOsErrorReporting we call this for each level of the call stack
915 // while searching for the exception handler. Only the first level needs
916 // to be reported.
917 if (UseOSErrorReporting && log_done) return;
918
919 // This is not the first error, see if it happened in a different thread
920 // or in the same thread during error reporting.
921 if (first_error_tid != mytid) {
922 char msgbuf[64];
923 jio_snprintf(msgbuf, sizeof(msgbuf),
924 "[thread " INT64_FORMAT " also had an error]",
925 mytid);
926 out.print_raw_cr(msgbuf);
927
928 // error reporting is not MT-safe, block current thread
929 os::infinite_sleep();
930
931 } else {
932 if (recursive_error_count++ > 30) {
933 out.print_raw_cr("[Too many errors, abort]");
934 os::die();
935 }
936
937 jio_snprintf(buffer, sizeof(buffer),
938 "[error occurred during error reporting %s, id 0x%x]",
939 first_error ? first_error->_current_step_info : "",
940 _id);
941 if (log.is_open()) {
942 log.cr();
943 log.print_raw_cr(buffer);
944 log.cr();
945 } else {
946 out.cr();
947 out.print_raw_cr(buffer);
948 out.cr();
949 }
950 }
951 }
952
953 // print to screen
954 if (!out_done) {
955 first_error->_verbose = false;
956
957 staticBufferStream sbs(buffer, sizeof(buffer), &out);
958 first_error->report(&sbs);
959
960 out_done = true;
961
962 first_error->_current_step = 0; // reset current_step
963 first_error->_current_step_info = ""; // reset current_step string
964 }
965
966 // print to error log file
967 if (!log_done) {
968 first_error->_verbose = true;
969
970 // see if log file is already open
971 if (!log.is_open()) {
972 // open log file
973 int fd = prepare_log_file(ErrorFile, "hs_err_pid%p.log", buffer, sizeof(buffer));
974 if (fd != -1) {
975 out.print_raw("# An error report file with more information is saved as:\n# ");
976 out.print_raw_cr(buffer);
977
978 log.set_fd(fd);
979 } else {
980 out.print_raw_cr("# Can not save log file, dump to screen..");
981 log.set_fd(defaultStream::output_fd());
982 /* Error reporting currently needs dumpfile.
983 * Maybe implement direct streaming in the future.*/
984 transmit_report_done = true;
985 }
986 }
987
988 staticBufferStream sbs(buffer, O_BUFLEN, &log);
989 first_error->report(&sbs);
990 first_error->_current_step = 0; // reset current_step
991 first_error->_current_step_info = ""; // reset current_step string
992
993 // Run error reporting to determine whether or not to report the crash.
994 if (!transmit_report_done && should_report_bug(first_error->_id)) {
995 transmit_report_done = true;
996 FILE* hs_err = os::open(log.fd(), "r");
997 if (NULL != hs_err) {
998 ErrorReporter er;
999 er.call(hs_err, buffer, O_BUFLEN);
1000 }
1001 }
1002
1003 if (log.fd() != defaultStream::output_fd()) {
1004 close(log.fd());
1005 }
1006
1007 log.set_fd(-1);
1008 log_done = true;
1009 }
1010
1011
1012 static bool skip_OnError = false;
1013 if (!skip_OnError && OnError && OnError[0]) {
1014 skip_OnError = true;
1015
1016 out.print_raw_cr("#");
1017 out.print_raw ("# -XX:OnError=\"");
1018 out.print_raw (OnError);
1019 out.print_raw_cr("\"");
1020
1021 char* cmd;
1022 const char* ptr = OnError;
1023 while ((cmd = next_OnError_command(buffer, sizeof(buffer), &ptr)) != NULL){
1024 out.print_raw ("# Executing ");
1025 #if defined(LINUX) || defined(_ALLBSD_SOURCE)
1026 out.print_raw ("/bin/sh -c ");
1027 #elif defined(SOLARIS)
1028 out.print_raw ("/usr/bin/sh -c ");
1029 #endif
1030 out.print_raw ("\"");
1031 out.print_raw (cmd);
1032 out.print_raw_cr("\" ...");
1033
1034 if (os::fork_and_exec(cmd) < 0) {
1035 out.print_cr("os::fork_and_exec failed: %s (%d)", strerror(errno), errno);
1036 }
1037 }
1038
1039 // done with OnError
1040 OnError = NULL;
1041 }
1042
1043 static bool skip_replay = ReplayCompiles; // Do not overwrite file during replay
1044 if (DumpReplayDataOnError && _thread && _thread->is_Compiler_thread() && !skip_replay) {
1045 skip_replay = true;
1046 ciEnv* env = ciEnv::current();
1047 if (env != NULL) {
1048 int fd = prepare_log_file(ReplayDataFile, "replay_pid%p.log", buffer, sizeof(buffer));
1049 if (fd != -1) {
1050 FILE* replay_data_file = os::open(fd, "w");
1051 if (replay_data_file != NULL) {
1052 fileStream replay_data_stream(replay_data_file, /*need_close=*/true);
1053 env->dump_replay_data_unsafe(&replay_data_stream);
1054 out.print_raw("#\n# Compiler replay data is saved as:\n# ");
1055 out.print_raw_cr(buffer);
1056 } else {
1057 out.print_raw("#\n# Can't open file to dump replay data. Error: ");
1058 out.print_raw_cr(strerror(os::get_last_error()));
1059 }
1060 }
1061 }
1062 }
1063
1064 static bool skip_bug_url = !should_report_bug(first_error->_id);
1065 if (!skip_bug_url) {
1066 skip_bug_url = true;
1067
1068 out.print_raw_cr("#");
1069 print_bug_submit_message(&out, _thread);
1070 }
1071
1072 if (!UseOSErrorReporting) {
1073 // os::abort() will call abort hooks, try it first.
1074 static bool skip_os_abort = false;
1075 if (!skip_os_abort) {
1076 skip_os_abort = true;
1077 bool dump_core = should_report_bug(first_error->_id);
1078 os::abort(dump_core);
1079 }
1080
1081 // if os::abort() doesn't abort, try os::die();
1082 os::die();
1083 }
1084 }
1085
1086 /*
1087 * OnOutOfMemoryError scripts/commands executed while VM is a safepoint - this
1088 * ensures utilities such as jmap can observe the process is a consistent state.
1089 */
1090 class VM_ReportJavaOutOfMemory : public VM_Operation {
1091 private:
1092 VMError *_err;
1093 public:
1094 VM_ReportJavaOutOfMemory(VMError *err) { _err = err; }
1095 VMOp_Type type() const { return VMOp_ReportJavaOutOfMemory; }
1096 void doit();
1097 };
1098
1099 void VM_ReportJavaOutOfMemory::doit() {
1100 // Don't allocate large buffer on stack
1101 static char buffer[O_BUFLEN];
1102
1103 tty->print_cr("#");
1104 tty->print_cr("# java.lang.OutOfMemoryError: %s", _err->message());
1105 tty->print_cr("# -XX:OnOutOfMemoryError=\"%s\"", OnOutOfMemoryError);
1106
1107 // make heap parsability
1108 Universe::heap()->ensure_parsability(false); // no need to retire TLABs
1109
1110 char* cmd;
1111 const char* ptr = OnOutOfMemoryError;
1112 while ((cmd = next_OnError_command(buffer, sizeof(buffer), &ptr)) != NULL){
1113 tty->print("# Executing ");
1114 #if defined(LINUX)
1115 tty->print ("/bin/sh -c ");
1116 #elif defined(SOLARIS)
1117 tty->print ("/usr/bin/sh -c ");
1118 #endif
1119 tty->print_cr("\"%s\"...", cmd);
1120
1121 if (os::fork_and_exec(cmd) < 0) {
1122 tty->print_cr("os::fork_and_exec failed: %s (%d)", strerror(errno), errno);
1123 }
1124 }
1125 }
1126
1127 void VMError::report_java_out_of_memory() {
1128 if (OnOutOfMemoryError && OnOutOfMemoryError[0]) {
1129 MutexLocker ml(Heap_lock);
1130 VM_ReportJavaOutOfMemory op(this);
1131 VMThread::execute(&op);
1132 }
1133 }