1 /*
2 * Copyright (c) 2003, 2014, 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 "gc_interface/collectedHeap.hpp"
30 #include "prims/whitebox.hpp"
31 #include "runtime/arguments.hpp"
32 #include "runtime/atomic.inline.hpp"
33 #include "runtime/frame.inline.hpp"
34 #include "runtime/init.hpp"
35 #include "runtime/os.hpp"
36 #include "runtime/thread.inline.hpp"
37 #include "runtime/vmThread.hpp"
38 #include "runtime/vm_operations.hpp"
39 #include "services/memTracker.hpp"
40 #include "utilities/debug.hpp"
41 #include "utilities/decoder.hpp"
42 #include "utilities/defaultStream.hpp"
43 #include "utilities/errorReporter.hpp"
44 #include "utilities/events.hpp"
45 #include "utilities/top.hpp"
46 #include "utilities/vmError.hpp"
47
48 PRAGMA_FORMAT_MUTE_WARNINGS_FOR_GCC
49
50 // List of environment variables that should be reported in error log file.
51 const char *env_list[] = {
52 // All platforms
53 "JAVA_HOME", "JRE_HOME", "JAVA_TOOL_OPTIONS", "_JAVA_OPTIONS", "CLASSPATH",
54 "JAVA_COMPILER", "PATH", "USERNAME",
55
56 // Env variables that are defined on Solaris/Linux/BSD
57 "LD_LIBRARY_PATH", "LD_PRELOAD", "SHELL", "DISPLAY",
58 "HOSTTYPE", "OSTYPE", "ARCH", "MACHTYPE",
59
60 // defined on Linux
61 "LD_ASSUME_KERNEL", "_JAVA_SR_SIGNUM",
62
63 // defined on Darwin
64 "DYLD_LIBRARY_PATH", "DYLD_FALLBACK_LIBRARY_PATH",
65 "DYLD_FRAMEWORK_PATH", "DYLD_FALLBACK_FRAMEWORK_PATH",
66 "DYLD_INSERT_LIBRARIES",
67
68 // defined on Windows
69 "OS", "PROCESSOR_IDENTIFIER", "_ALT_JAVA_HOME_DIR",
70
71 (const char *)0
72 };
73
74 // Fatal error handler for internal errors and crashes.
75 //
76 // The default behavior of fatal error handler is to print a brief message
77 // to standard out (defaultStream::output_fd()), then save detailed information
78 // into an error report file (hs_err_pid<pid>.log) and abort VM. If multiple
79 // threads are having troubles at the same time, only one error is reported.
80 // The thread that is reporting error will abort VM when it is done, all other
81 // threads are blocked forever inside report_and_die().
82
83 // Constructor for crashes
84 VMError::VMError(Thread* thread, unsigned int sig, address pc, void* siginfo, void* context) {
85 _thread = thread;
86 _id = sig;
87 _pc = pc;
88 _siginfo = siginfo;
89 _context = context;
90
91 _verbose = false;
92 _current_step = 0;
93 _current_step_info = NULL;
94
95 _message = NULL;
96 _detail_msg = NULL;
97 _filename = NULL;
98 _lineno = 0;
99
100 _size = 0;
101 }
102
103 // Constructor for internal errors
104 VMError::VMError(Thread* thread, const char* filename, int lineno,
105 const char* message, const char * detail_msg)
106 {
107 _thread = thread;
108 _id = INTERNAL_ERROR; // Value that's not an OS exception/signal
109 _filename = filename;
110 _lineno = lineno;
111 _message = message;
112 _detail_msg = detail_msg;
113
114 _verbose = false;
115 _current_step = 0;
116 _current_step_info = NULL;
117
118 _pc = NULL;
119 _siginfo = NULL;
120 _context = NULL;
121
122 _size = 0;
123 }
124
125 // Constructor for OOM errors
126 VMError::VMError(Thread* thread, const char* filename, int lineno, size_t size,
127 VMErrorType vm_err_type, const char* message) {
128 _thread = thread;
129 _id = vm_err_type; // Value that's not an OS exception/signal
130 _filename = filename;
131 _lineno = lineno;
132 _message = message;
133 _detail_msg = NULL;
134
135 _verbose = false;
136 _current_step = 0;
137 _current_step_info = NULL;
138
139 _pc = NULL;
140 _siginfo = NULL;
141 _context = NULL;
142
143 _size = size;
144 }
145
146
147 // Constructor for non-fatal errors
148 VMError::VMError(const char* message) {
149 _thread = NULL;
150 _id = INTERNAL_ERROR; // Value that's not an OS exception/signal
151 _filename = NULL;
152 _lineno = 0;
153 _message = message;
154 _detail_msg = NULL;
155
156 _verbose = false;
157 _current_step = 0;
158 _current_step_info = NULL;
159
160 _pc = NULL;
161 _siginfo = NULL;
162 _context = NULL;
163
164 _size = 0;
165 }
166
167 // -XX:OnError=<string>, where <string> can be a list of commands, separated
168 // by ';'. "%p" is replaced by current process id (pid); "%%" is replaced by
169 // a single "%". Some examples:
170 //
171 // -XX:OnError="pmap %p" // show memory map
172 // -XX:OnError="gcore %p; dbx - %p" // dump core and launch debugger
173 // -XX:OnError="cat hs_err_pid%p.log | mail my_email@sun.com"
174 // -XX:OnError="kill -9 %p" // ?#!@#
175
176 // A simple parser for -XX:OnError, usage:
177 // ptr = OnError;
178 // while ((cmd = next_OnError_command(buffer, sizeof(buffer), &ptr) != NULL)
179 // ... ...
180 static char* next_OnError_command(char* buf, int buflen, const char** ptr) {
181 if (ptr == NULL || *ptr == NULL) return NULL;
182
183 const char* cmd = *ptr;
184
185 // skip leading blanks or ';'
186 while (*cmd == ' ' || *cmd == ';') cmd++;
187
188 if (*cmd == '\0') return NULL;
189
190 const char * cmdend = cmd;
191 while (*cmdend != '\0' && *cmdend != ';') cmdend++;
192
193 Arguments::copy_expand_pid(cmd, cmdend - cmd, buf, buflen);
194
195 *ptr = (*cmdend == '\0' ? cmdend : cmdend + 1);
196 return buf;
197 }
198
199
200 static void print_bug_submit_message(outputStream *out, Thread *thread) {
201 if (out == NULL) return;
202 out->print_raw_cr("# If you would like to submit a bug report, please visit:");
203 out->print_raw ("# ");
204 out->print_raw_cr(Arguments::java_vendor_url_bug());
205 // If the crash is in native code, encourage user to submit a bug to the
206 // provider of that code.
207 if (thread && thread->is_Java_thread() &&
208 !thread->is_hidden_from_external_view()) {
209 JavaThread* jt = (JavaThread*)thread;
210 if (jt->thread_state() == _thread_in_native) {
211 out->print_cr("# The crash happened outside the Java Virtual Machine in native code.\n# See problematic frame for where to report the bug.");
212 }
213 }
214 out->print_raw_cr("#");
215 }
216
217 bool VMError::coredump_status;
218 char VMError::coredump_message[O_BUFLEN];
219
220 void VMError::report_coredump_status(const char* message, bool status) {
221 coredump_status = status;
222 strncpy(coredump_message, message, sizeof(coredump_message));
223 coredump_message[sizeof(coredump_message)-1] = 0;
224 }
225
226
227 // Return a string to describe the error
228 char* VMError::error_string(char* buf, int buflen) {
229 char signame_buf[64];
230 const char *signame = os::exception_name(_id, signame_buf, sizeof(signame_buf));
231
232 if (signame) {
233 jio_snprintf(buf, buflen,
234 "%s (0x%x) at pc=" PTR_FORMAT ", pid=%d, tid=" UINTX_FORMAT,
235 signame, _id, _pc,
236 os::current_process_id(), os::current_thread_id());
237 } else if (_filename != NULL && _lineno > 0) {
238 // skip directory names
239 char separator = os::file_separator()[0];
240 const char *p = strrchr(_filename, separator);
241 int n = jio_snprintf(buf, buflen,
242 "Internal Error at %s:%d, pid=%d, tid=" UINTX_FORMAT,
243 p ? p + 1 : _filename, _lineno,
244 os::current_process_id(), os::current_thread_id());
245 if (n >= 0 && n < buflen && _message) {
246 if (_detail_msg) {
247 jio_snprintf(buf + n, buflen - n, "%s%s: %s",
248 os::line_separator(), _message, _detail_msg);
249 } else {
250 jio_snprintf(buf + n, buflen - n, "%sError: %s",
251 os::line_separator(), _message);
252 }
253 }
254 } else {
255 jio_snprintf(buf, buflen,
256 "Internal Error (0x%x), pid=%d, tid=" UINTX_FORMAT,
257 _id, os::current_process_id(), os::current_thread_id());
258 }
259
260 return buf;
261 }
262
263 void VMError::print_stack_trace(outputStream* st, JavaThread* jt,
264 char* buf, int buflen, bool verbose) {
265 #ifdef ZERO
266 if (jt->zero_stack()->sp() && jt->top_zero_frame()) {
267 // StackFrameStream uses the frame anchor, which may not have
268 // been set up. This can be done at any time in Zero, however,
269 // so if it hasn't been set up then we just set it up now and
270 // clear it again when we're done.
271 bool has_last_Java_frame = jt->has_last_Java_frame();
272 if (!has_last_Java_frame)
273 jt->set_last_Java_frame();
274 st->print("Java frames:");
275
276 // If the top frame is a Shark frame and the frame anchor isn't
277 // set up then it's possible that the information in the frame
278 // is garbage: it could be from a previous decache, or it could
279 // simply have never been written. So we print a warning...
280 StackFrameStream sfs(jt);
281 if (!has_last_Java_frame && !sfs.is_done()) {
282 if (sfs.current()->zeroframe()->is_shark_frame()) {
283 st->print(" (TOP FRAME MAY BE JUNK)");
284 }
285 }
286 st->cr();
287
288 // Print the frames
289 for(int i = 0; !sfs.is_done(); sfs.next(), i++) {
290 sfs.current()->zero_print_on_error(i, st, buf, buflen);
291 st->cr();
292 }
293
294 // Reset the frame anchor if necessary
295 if (!has_last_Java_frame)
296 jt->reset_last_Java_frame();
297 }
298 #else
299 if (jt->has_last_Java_frame()) {
300 st->print_cr("Java frames: (J=compiled Java code, j=interpreted, Vv=VM code)");
301 for(StackFrameStream sfs(jt); !sfs.is_done(); sfs.next()) {
302 sfs.current()->print_on_error(st, buf, buflen, verbose);
303 st->cr();
304 }
305 }
306 #endif // ZERO
307 }
308
309 // This is the main function to report a fatal error. Only one thread can
310 // call this function, so we don't need to worry about MT-safety. But it's
311 // possible that the error handler itself may crash or die on an internal
312 // error, for example, when the stack/heap is badly damaged. We must be
313 // able to handle recursive errors that happen inside error handler.
314 //
315 // Error reporting is done in several steps. If a crash or internal error
316 // occurred when reporting an error, the nested signal/exception handler
317 // can skip steps that are already (or partially) done. Error reporting will
318 // continue from the next step. This allows us to retrieve and print
319 // information that may be unsafe to get after a fatal error. If it happens,
320 // you may find nested report_and_die() frames when you look at the stack
321 // in a debugger.
322 //
323 // In general, a hang in error handler is much worse than a crash or internal
324 // error, as it's harder to recover from a hang. Deadlock can happen if we
325 // try to grab a lock that is already owned by current thread, or if the
326 // owner is blocked forever (e.g. in os::infinite_sleep()). If possible, the
327 // error handler and all the functions it called should avoid grabbing any
328 // lock. An important thing to notice is that memory allocation needs a lock.
329 //
330 // We should avoid using large stack allocated buffers. Many errors happen
331 // when stack space is already low. Making things even worse is that there
332 // could be nested report_and_die() calls on stack (see above). Only one
333 // thread can report error, so large buffers are statically allocated in data
334 // segment.
335
336 void VMError::report(outputStream* st) {
337 # define BEGIN if (_current_step == 0) { _current_step = 1;
338 # define STEP(n, s) } if (_current_step < n) { _current_step = n; _current_step_info = s;
339 # define END }
340
341 // don't allocate large buffer on stack
342 static char buf[O_BUFLEN];
343
344 BEGIN
345
346 STEP(10, "(printing fatal error message)")
347
348 st->print_cr("#");
349 if (should_report_bug(_id)) {
350 st->print_cr("# A fatal error has been detected by the Java Runtime Environment:");
351 } else {
352 st->print_cr("# There is insufficient memory for the Java "
353 "Runtime Environment to continue.");
354 }
355
356 STEP(15, "(printing type of error)")
357
358 switch(_id) {
359 case OOM_MALLOC_ERROR:
360 case OOM_MMAP_ERROR:
361 if (_size) {
362 st->print("# Native memory allocation ");
363 st->print((_id == (int)OOM_MALLOC_ERROR) ? "(malloc) failed to allocate " :
364 "(mmap) failed to map ");
365 jio_snprintf(buf, sizeof(buf), SIZE_FORMAT, _size);
366 st->print("%s", buf);
367 st->print(" bytes");
368 if (_message != NULL) {
369 st->print(" for ");
370 st->print("%s", _message);
371 }
372 st->cr();
373 } else {
374 if (_message != NULL)
375 st->print("# ");
376 st->print_cr("%s", _message);
377 }
378 // In error file give some solutions
379 if (_verbose) {
380 st->print_cr("# Possible reasons:");
381 st->print_cr("# The system is out of physical RAM or swap space");
382 st->print_cr("# In 32 bit mode, the process size limit was hit");
383 st->print_cr("# Possible solutions:");
384 st->print_cr("# Reduce memory load on the system");
385 st->print_cr("# Increase physical memory or swap space");
386 st->print_cr("# Check if swap backing store is full");
387 st->print_cr("# Use 64 bit Java on a 64 bit OS");
388 st->print_cr("# Decrease Java heap size (-Xmx/-Xms)");
389 st->print_cr("# Decrease number of Java threads");
390 st->print_cr("# Decrease Java thread stack sizes (-Xss)");
391 st->print_cr("# Set larger code cache with -XX:ReservedCodeCacheSize=");
392 st->print_cr("# This output file may be truncated or incomplete.");
393 } else {
394 return; // that's enough for the screen
395 }
396 break;
397 case INTERNAL_ERROR:
398 default:
399 break;
400 }
401
402 STEP(20, "(printing exception/signal name)")
403
404 st->print_cr("#");
405 st->print("# ");
406 // Is it an OS exception/signal?
407 if (os::exception_name(_id, buf, sizeof(buf))) {
408 st->print("%s", buf);
409 st->print(" (0x%x)", _id); // signal number
410 st->print(" at pc=" PTR_FORMAT, _pc);
411 } else {
412 if (should_report_bug(_id)) {
413 st->print("Internal Error");
414 } else {
415 st->print("Out of Memory Error");
416 }
417 if (_filename != NULL && _lineno > 0) {
418 #ifdef PRODUCT
419 // In product mode chop off pathname?
420 char separator = os::file_separator()[0];
421 const char *p = strrchr(_filename, separator);
422 const char *file = p ? p+1 : _filename;
423 #else
424 const char *file = _filename;
425 #endif
426 size_t len = strlen(file);
427 size_t buflen = sizeof(buf);
428
429 strncpy(buf, file, buflen);
430 if (len + 10 < buflen) {
431 sprintf(buf + len, ":%d", _lineno);
432 }
433 st->print(" (%s)", buf);
434 } else {
435 st->print(" (0x%x)", _id);
436 }
437 }
438
439 STEP(30, "(printing current thread and pid)")
440
441 // process id, thread id
442 st->print(", pid=%d", os::current_process_id());
443 st->print(", tid=" UINTX_FORMAT, os::current_thread_id());
444 st->cr();
445
446 STEP(40, "(printing error message)")
447
448 if (should_report_bug(_id)) { // already printed the message.
449 // error message
450 if (_detail_msg) {
451 st->print_cr("# %s: %s", _message ? _message : "Error", _detail_msg);
452 } else if (_message) {
453 st->print_cr("# Error: %s", _message);
454 }
455 }
456
457 STEP(50, "(printing Java version string)")
458
459 // VM version
460 st->print_cr("#");
461 JDK_Version::current().to_string(buf, sizeof(buf));
462 const char* runtime_name = JDK_Version::runtime_name() != NULL ?
463 JDK_Version::runtime_name() : "";
464 const char* runtime_version = JDK_Version::runtime_version() != NULL ?
465 JDK_Version::runtime_version() : "";
466 st->print_cr("# JRE version: %s (%s) (build %s)", runtime_name, buf, runtime_version);
467 st->print_cr("# Java VM: %s (%s %s %s %s)",
468 Abstract_VM_Version::vm_name(),
469 Abstract_VM_Version::vm_release(),
470 Abstract_VM_Version::vm_info_string(),
471 Abstract_VM_Version::vm_platform_string(),
472 UseCompressedOops ? "compressed oops" : ""
473 );
474
475 STEP(60, "(printing problematic frame)")
476
477 // Print current frame if we have a context (i.e. it's a crash)
478 if (_context) {
479 st->print_cr("# Problematic frame:");
480 st->print("# ");
481 frame fr = os::fetch_frame_from_context(_context);
482 fr.print_on_error(st, buf, sizeof(buf));
483 st->cr();
484 st->print_cr("#");
485 }
486 STEP(63, "(printing core file information)")
487 st->print("# ");
488 if (coredump_status) {
489 st->print("Core dump written. Default location: %s", coredump_message);
490 } else {
491 st->print("Failed to write core dump. %s", coredump_message);
492 }
493 st->cr();
494 st->print_cr("#");
495
496 STEP(65, "(printing bug submit message)")
497
498 if (should_report_bug(_id) && _verbose) {
499 print_bug_submit_message(st, _thread);
500 }
501
502 STEP(70, "(printing thread)" )
503
504 if (_verbose) {
505 st->cr();
506 st->print_cr("--------------- T H R E A D ---------------");
507 st->cr();
508 }
509
510 STEP(80, "(printing current thread)" )
511
512 // current thread
513 if (_verbose) {
514 if (_thread) {
515 st->print("Current thread (" PTR_FORMAT "): ", _thread);
516 _thread->print_on_error(st, buf, sizeof(buf));
517 st->cr();
518 } else {
519 st->print_cr("Current thread is native thread");
520 }
521 st->cr();
522 }
523
524 STEP(90, "(printing siginfo)" )
525
526 // signal no, signal code, address that caused the fault
527 if (_verbose && _siginfo) {
528 os::print_siginfo(st, _siginfo);
529 st->cr();
530 }
531
532 STEP(100, "(printing registers, top of stack, instructions near pc)")
533
534 // registers, top of stack, instructions near pc
535 if (_verbose && _context) {
536 os::print_context(st, _context);
537 st->cr();
538 }
539
540 STEP(105, "(printing register info)")
541
542 // decode register contents if possible
543 if (_verbose && _context && Universe::is_fully_initialized()) {
544 os::print_register_info(st, _context);
545 st->cr();
546 }
547
548 STEP(110, "(printing stack bounds)" )
549
550 if (_verbose) {
551 st->print("Stack: ");
552
553 address stack_top;
554 size_t stack_size;
555
556 if (_thread) {
557 stack_top = _thread->stack_base();
558 stack_size = _thread->stack_size();
559 } else {
560 stack_top = os::current_stack_base();
561 stack_size = os::current_stack_size();
562 }
563
564 address stack_bottom = stack_top - stack_size;
565 st->print("[" PTR_FORMAT "," PTR_FORMAT "]", stack_bottom, stack_top);
566
567 frame fr = _context ? os::fetch_frame_from_context(_context)
568 : os::current_frame();
569
570 if (fr.sp()) {
571 st->print(", sp=" PTR_FORMAT, fr.sp());
572 size_t free_stack_size = pointer_delta(fr.sp(), stack_bottom, 1024);
573 st->print(", free space=" SIZE_FORMAT "k", free_stack_size);
574 }
575
576 st->cr();
577 }
578
579 STEP(120, "(printing native stack)" )
580
581 if (_verbose) {
582 if (os::platform_print_native_stack(st, _context, buf, sizeof(buf))) {
583 // We have printed the native stack in platform-specific code
584 // Windows/x64 needs special handling.
585 } else {
586 frame fr = _context ? os::fetch_frame_from_context(_context)
587 : os::current_frame();
588
589 print_native_stack(st, fr, _thread, buf, sizeof(buf));
590 }
591 }
592
593 STEP(130, "(printing Java stack)" )
594
595 if (_verbose && _thread && _thread->is_Java_thread()) {
596 print_stack_trace(st, (JavaThread*)_thread, buf, sizeof(buf));
597 }
598
599 STEP(135, "(printing target Java thread stack)" )
600
601 // printing Java thread stack trace if it is involved in GC crash
602 if (_verbose && _thread && (_thread->is_Named_thread())) {
603 JavaThread* jt = ((NamedThread *)_thread)->processed_thread();
604 if (jt != NULL) {
605 st->print_cr("JavaThread " PTR_FORMAT " (nid = " UINTX_FORMAT ") was being processed", jt, jt->osthread()->thread_id());
606 print_stack_trace(st, jt, buf, sizeof(buf), true);
607 }
608 }
609
610 STEP(140, "(printing VM operation)" )
611
612 if (_verbose && _thread && _thread->is_VM_thread()) {
613 VMThread* t = (VMThread*)_thread;
614 VM_Operation* op = t->vm_operation();
615 if (op) {
616 op->print_on_error(st);
617 st->cr();
618 st->cr();
619 }
620 }
621
622 STEP(150, "(printing current compile task)" )
623
624 if (_verbose && _thread && _thread->is_Compiler_thread()) {
625 CompilerThread* t = (CompilerThread*)_thread;
626 if (t->task()) {
627 st->cr();
628 st->print_cr("Current CompileTask:");
629 t->task()->print_line_on_error(st, buf, sizeof(buf));
630 st->cr();
631 }
632 }
633
634 STEP(160, "(printing process)" )
635
636 if (_verbose) {
637 st->cr();
638 st->print_cr("--------------- P R O C E S S ---------------");
639 st->cr();
640 }
641
642 STEP(170, "(printing all threads)" )
643
644 // all threads
645 if (_verbose && _thread) {
646 Threads::print_on_error(st, _thread, buf, sizeof(buf));
647 st->cr();
648 }
649
650 STEP(175, "(printing VM state)" )
651
652 if (_verbose) {
653 // Safepoint state
654 st->print("VM state:");
655
656 if (SafepointSynchronize::is_synchronizing()) st->print("synchronizing");
657 else if (SafepointSynchronize::is_at_safepoint()) st->print("at safepoint");
658 else st->print("not at safepoint");
659
660 // Also see if error occurred during initialization or shutdown
661 if (!Universe::is_fully_initialized()) {
662 st->print(" (not fully initialized)");
663 } else if (VM_Exit::vm_exited()) {
664 st->print(" (shutting down)");
665 } else {
666 st->print(" (normal execution)");
667 }
668 st->cr();
669 st->cr();
670 }
671
672 STEP(180, "(printing owned locks on error)" )
673
674 // mutexes/monitors that currently have an owner
675 if (_verbose) {
676 print_owned_locks_on_error(st);
677 st->cr();
678 }
679
680 STEP(190, "(printing heap information)" )
681
682 if (_verbose && Universe::is_fully_initialized()) {
683 Universe::heap()->print_on_error(st);
684 st->cr();
685
686 st->print_cr("Polling page: " INTPTR_FORMAT, os::get_polling_page());
687 st->cr();
688 }
689
690 STEP(195, "(printing code cache information)" )
691
692 if (_verbose && Universe::is_fully_initialized()) {
693 // print code cache information before vm abort
694 CodeCache::print_summary(st);
695 st->cr();
696 }
697
698 STEP(200, "(printing ring buffers)" )
699
700 if (_verbose) {
701 Events::print_all(st);
702 st->cr();
703 }
704
705 STEP(205, "(printing dynamic libraries)" )
706
707 if (_verbose) {
708 // dynamic libraries, or memory map
709 os::print_dll_info(st);
710 st->cr();
711 }
712
713 STEP(210, "(printing VM options)" )
714
715 if (_verbose) {
716 // VM options
717 Arguments::print_on(st);
718 st->cr();
719 }
720
721 STEP(215, "(printing warning if internal testing API used)" )
722
723 if (WhiteBox::used()) {
724 st->print_cr("Unsupported internal testing APIs have been used.");
725 st->cr();
726 }
727
728 STEP(220, "(printing environment variables)" )
729
730 if (_verbose) {
731 os::print_environment_variables(st, env_list, buf, sizeof(buf));
732 st->cr();
733 }
734
735 STEP(225, "(printing signal handlers)" )
736
737 if (_verbose) {
738 os::print_signal_handlers(st, buf, sizeof(buf));
739 st->cr();
740 }
741
742 STEP(228, "(Native Memory Tracking)" )
743 if (_verbose) {
744 MemTracker::error_report(st);
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 // An error could happen before tty is initialized or after it has been
800 // destroyed. Here we use a very simple unbuffered fdStream for printing.
801 // Only out.print_raw() and out.print_raw_cr() should be used, as other
802 // printing methods need to allocate large buffer on stack. To format a
803 // string, use jio_snprintf() with a static buffer or use staticBufferStream.
804 fdStream VMError::out(defaultStream::output_fd());
805 fdStream VMError::log; // error log used by VMError::report_and_die()
806
807 /** Expand a pattern into a buffer starting at pos and open a file using constructed path */
808 static int expand_and_open(const char* pattern, char* buf, size_t buflen, size_t pos) {
809 int fd = -1;
810 if (Arguments::copy_expand_pid(pattern, strlen(pattern), &buf[pos], buflen - pos)) {
811 // the O_EXCL flag will cause the open to fail if the file exists
812 fd = open(buf, O_RDWR | O_CREAT | O_EXCL, 0666);
813 }
814 return fd;
815 }
816
817 /**
818 * Construct file name for a log file and return it's file descriptor.
819 * Name and location depends on pattern, default_pattern params and access
820 * permissions.
821 */
822 static int prepare_log_file(const char* pattern, const char* default_pattern, char* buf, size_t buflen) {
823 int fd = -1;
824
825 // If possible, use specified pattern to construct log file name
826 if (pattern != NULL) {
827 fd = expand_and_open(pattern, buf, buflen, 0);
828 }
829
830 // Either user didn't specify, or the user's location failed,
831 // so use the default name in the current directory
832 if (fd == -1) {
833 const char* cwd = os::get_current_directory(buf, buflen);
834 if (cwd != NULL) {
835 size_t pos = strlen(cwd);
836 int fsep_len = jio_snprintf(&buf[pos], buflen-pos, "%s", os::file_separator());
837 pos += fsep_len;
838 if (fsep_len > 0) {
839 fd = expand_and_open(default_pattern, buf, buflen, pos);
840 }
841 }
842 }
843
844 // try temp directory if it exists.
845 if (fd == -1) {
846 const char* tmpdir = os::get_temp_directory();
847 if (tmpdir != NULL && strlen(tmpdir) > 0) {
848 int pos = jio_snprintf(buf, buflen, "%s%s", tmpdir, os::file_separator());
849 if (pos > 0) {
850 fd = expand_and_open(default_pattern, buf, buflen, pos);
851 }
852 }
853 }
854
855 return fd;
856 }
857
858 void VMError::report_and_die() {
859 // Don't allocate large buffer on stack
860 static char buffer[O_BUFLEN];
861
862 // How many errors occurred in error handler when reporting first_error.
863 static int recursive_error_count;
864
865 // We will first print a brief message to standard out (verbose = false),
866 // then save detailed information in log file (verbose = true).
867 static bool out_done = false; // done printing to standard out
868 static bool log_done = false; // done saving error log
869 static bool transmit_report_done = false; // done error reporting
870
871 if (SuppressFatalErrorMessage) {
872 os::abort();
873 }
874 jlong mytid = os::current_thread_id();
875 if (first_error == NULL &&
876 Atomic::cmpxchg_ptr(this, &first_error, NULL) == NULL) {
877
878 // first time
879 first_error_tid = mytid;
880 set_error_reported();
881
882 if (ShowMessageBoxOnError || PauseAtExit) {
883 show_message_box(buffer, sizeof(buffer));
884
885 // User has asked JVM to abort. Reset ShowMessageBoxOnError so the
886 // WatcherThread can kill JVM if the error handler hangs.
887 ShowMessageBoxOnError = false;
888 }
889
890 // Write a minidump on Windows, check core dump limits on Linux/Solaris
891 os::check_or_create_dump(_siginfo, _context, buffer, sizeof(buffer));
892
893 // reset signal handlers or exception filter; make sure recursive crashes
894 // are handled properly.
895 reset_signal_handlers();
896
897 } else {
898 // If UseOsErrorReporting we call this for each level of the call stack
899 // while searching for the exception handler. Only the first level needs
900 // to be reported.
901 if (UseOSErrorReporting && log_done) return;
902
903 // This is not the first error, see if it happened in a different thread
904 // or in the same thread during error reporting.
905 if (first_error_tid != mytid) {
906 char msgbuf[64];
907 jio_snprintf(msgbuf, sizeof(msgbuf),
908 "[thread " INT64_FORMAT " also had an error]",
909 mytid);
910 out.print_raw_cr(msgbuf);
911
912 // error reporting is not MT-safe, block current thread
913 os::infinite_sleep();
914
915 } else {
916 if (recursive_error_count++ > 30) {
917 out.print_raw_cr("[Too many errors, abort]");
918 os::die();
919 }
920
921 jio_snprintf(buffer, sizeof(buffer),
922 "[error occurred during error reporting %s, id 0x%x]",
923 first_error ? first_error->_current_step_info : "",
924 _id);
925 if (log.is_open()) {
926 log.cr();
927 log.print_raw_cr(buffer);
928 log.cr();
929 } else {
930 out.cr();
931 out.print_raw_cr(buffer);
932 out.cr();
933 }
934 }
935 }
936
937 // print to screen
938 if (!out_done) {
939 first_error->_verbose = false;
940
941 staticBufferStream sbs(buffer, sizeof(buffer), &out);
942 first_error->report(&sbs);
943
944 out_done = true;
945
946 first_error->_current_step = 0; // reset current_step
947 first_error->_current_step_info = ""; // reset current_step string
948 }
949
950 // print to error log file
951 if (!log_done) {
952 first_error->_verbose = true;
953
954 // see if log file is already open
955 if (!log.is_open()) {
956 // open log file
957 int fd = prepare_log_file(ErrorFile, "hs_err_pid%p.log", buffer, sizeof(buffer));
958 if (fd != -1) {
959 out.print_raw("# An error report file with more information is saved as:\n# ");
960 out.print_raw_cr(buffer);
961
962 log.set_fd(fd);
963 } else {
964 out.print_raw_cr("# Can not save log file, dump to screen..");
965 log.set_fd(defaultStream::output_fd());
966 /* Error reporting currently needs dumpfile.
967 * Maybe implement direct streaming in the future.*/
968 transmit_report_done = true;
969 }
970 }
971
972 staticBufferStream sbs(buffer, O_BUFLEN, &log);
973 first_error->report(&sbs);
974 first_error->_current_step = 0; // reset current_step
975 first_error->_current_step_info = ""; // reset current_step string
976
977 // Run error reporting to determine whether or not to report the crash.
978 if (!transmit_report_done && should_report_bug(first_error->_id)) {
979 transmit_report_done = true;
980 const int fd2 = ::dup(log.fd());
981 FILE* const hs_err = ::fdopen(fd2, "r");
982 if (NULL != hs_err) {
983 ErrorReporter er;
984 er.call(hs_err, buffer, O_BUFLEN);
985 }
986 ::fclose(hs_err);
987 }
988
989 if (log.fd() != defaultStream::output_fd()) {
990 close(log.fd());
991 }
992
993 log.set_fd(-1);
994 log_done = true;
995 }
996
997
998 static bool skip_OnError = false;
999 if (!skip_OnError && OnError && OnError[0]) {
1000 skip_OnError = true;
1001
1002 out.print_raw_cr("#");
1003 out.print_raw ("# -XX:OnError=\"");
1004 out.print_raw (OnError);
1005 out.print_raw_cr("\"");
1006
1007 char* cmd;
1008 const char* ptr = OnError;
1009 while ((cmd = next_OnError_command(buffer, sizeof(buffer), &ptr)) != NULL){
1010 out.print_raw ("# Executing ");
1011 #if defined(LINUX) || defined(_ALLBSD_SOURCE)
1012 out.print_raw ("/bin/sh -c ");
1013 #elif defined(SOLARIS)
1014 out.print_raw ("/usr/bin/sh -c ");
1015 #endif
1016 out.print_raw ("\"");
1017 out.print_raw (cmd);
1018 out.print_raw_cr("\" ...");
1019
1020 os::fork_and_exec(cmd);
1021 }
1022
1023 // done with OnError
1024 OnError = NULL;
1025 }
1026
1027 static bool skip_replay = ReplayCompiles; // Do not overwrite file during replay
1028 if (DumpReplayDataOnError && _thread && _thread->is_Compiler_thread() && !skip_replay) {
1029 skip_replay = true;
1030 ciEnv* env = ciEnv::current();
1031 if (env != NULL) {
1032 int fd = prepare_log_file(ReplayDataFile, "replay_pid%p.log", buffer, sizeof(buffer));
1033 if (fd != -1) {
1034 FILE* replay_data_file = os::open(fd, "w");
1035 if (replay_data_file != NULL) {
1036 fileStream replay_data_stream(replay_data_file, /*need_close=*/true);
1037 env->dump_replay_data_unsafe(&replay_data_stream);
1038 out.print_raw("#\n# Compiler replay data is saved as:\n# ");
1039 out.print_raw_cr(buffer);
1040 } else {
1041 out.print_raw("#\n# Can't open file to dump replay data. Error: ");
1042 out.print_raw_cr(strerror(os::get_last_error()));
1043 }
1044 }
1045 }
1046 }
1047
1048 static bool skip_bug_url = !should_report_bug(first_error->_id);
1049 if (!skip_bug_url) {
1050 skip_bug_url = true;
1051
1052 out.print_raw_cr("#");
1053 print_bug_submit_message(&out, _thread);
1054 }
1055
1056 if (!UseOSErrorReporting) {
1057 // os::abort() will call abort hooks, try it first.
1058 static bool skip_os_abort = false;
1059 if (!skip_os_abort) {
1060 skip_os_abort = true;
1061 bool dump_core = should_report_bug(first_error->_id);
1062 os::abort(dump_core);
1063 }
1064
1065 // if os::abort() doesn't abort, try os::die();
1066 os::die();
1067 }
1068 }
1069
1070 /*
1071 * OnOutOfMemoryError scripts/commands executed while VM is a safepoint - this
1072 * ensures utilities such as jmap can observe the process is a consistent state.
1073 */
1074 class VM_ReportJavaOutOfMemory : public VM_Operation {
1075 private:
1076 VMError *_err;
1077 public:
1078 VM_ReportJavaOutOfMemory(VMError *err) { _err = err; }
1079 VMOp_Type type() const { return VMOp_ReportJavaOutOfMemory; }
1080 void doit();
1081 };
1082
1083 void VM_ReportJavaOutOfMemory::doit() {
1084 // Don't allocate large buffer on stack
1085 static char buffer[O_BUFLEN];
1086
1087 tty->print_cr("#");
1088 tty->print_cr("# java.lang.OutOfMemoryError: %s", _err->message());
1089 tty->print_cr("# -XX:OnOutOfMemoryError=\"%s\"", OnOutOfMemoryError);
1090
1091 // make heap parsability
1092 Universe::heap()->ensure_parsability(false); // no need to retire TLABs
1093
1094 char* cmd;
1095 const char* ptr = OnOutOfMemoryError;
1096 while ((cmd = next_OnError_command(buffer, sizeof(buffer), &ptr)) != NULL){
1097 tty->print("# Executing ");
1098 #if defined(LINUX)
1099 tty->print ("/bin/sh -c ");
1100 #elif defined(SOLARIS)
1101 tty->print ("/usr/bin/sh -c ");
1102 #endif
1103 tty->print_cr("\"%s\"...", cmd);
1104
1105 os::fork_and_exec(cmd);
1106 }
1107 }
1108
1109 void VMError::report_java_out_of_memory() {
1110 if (OnOutOfMemoryError && OnOutOfMemoryError[0]) {
1111 MutexLocker ml(Heap_lock);
1112 VM_ReportJavaOutOfMemory op(this);
1113 VMThread::execute(&op);
1114 }
1115 }