1 /*
2 * Copyright (c) 2003, 2013, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 *
23 */
24
25 #include "precompiled.hpp"
26 #include "compiler/compileBroker.hpp"
27 #include "gc_interface/collectedHeap.hpp"
28 #include "prims/whitebox.hpp"
29 #include "runtime/arguments.hpp"
30 #include "runtime/frame.inline.hpp"
31 #include "runtime/init.hpp"
32 #include "runtime/os.hpp"
33 #include "runtime/thread.hpp"
34 #include "runtime/vmThread.hpp"
35 #include "runtime/vm_operations.hpp"
36 #include "services/memTracker.hpp"
37 #include "utilities/debug.hpp"
38 #include "utilities/decoder.hpp"
39 #include "utilities/defaultStream.hpp"
40 #include "utilities/errorReporter.hpp"
41 #include "utilities/events.hpp"
42 #include "utilities/top.hpp"
43 #include "utilities/vmError.hpp"
44
45 // List of environment variables that should be reported in error log file.
46 const char *env_list[] = {
47 // All platforms
48 "JAVA_HOME", "JRE_HOME", "JAVA_TOOL_OPTIONS", "_JAVA_OPTIONS", "CLASSPATH",
49 "JAVA_COMPILER", "PATH", "USERNAME",
50
51 // Env variables that are defined on Solaris/Linux/BSD
52 "LD_LIBRARY_PATH", "LD_PRELOAD", "SHELL", "DISPLAY",
53 "HOSTTYPE", "OSTYPE", "ARCH", "MACHTYPE",
54
55 // defined on Linux
56 "LD_ASSUME_KERNEL", "_JAVA_SR_SIGNUM",
57
58 // defined on Darwin
59 "DYLD_LIBRARY_PATH", "DYLD_FALLBACK_LIBRARY_PATH",
60 "DYLD_FRAMEWORK_PATH", "DYLD_FALLBACK_FRAMEWORK_PATH",
61 "DYLD_INSERT_LIBRARIES",
62
63 // defined on Windows
64 "OS", "PROCESSOR_IDENTIFIER", "_ALT_JAVA_HOME_DIR",
65
66 (const char *)0
67 };
68
69 // Fatal error handler for internal errors and crashes.
70 //
71 // The default behavior of fatal error handler is to print a brief message
72 // to standard out (defaultStream::output_fd()), then save detailed information
73 // into an error report file (hs_err_pid<pid>.log) and abort VM. If multiple
74 // threads are having troubles at the same time, only one error is reported.
75 // The thread that is reporting error will abort VM when it is done, all other
76 // threads are blocked forever inside report_and_die().
77
78 // Constructor for crashes
79 VMError::VMError(Thread* thread, unsigned int sig, address pc, void* siginfo, void* context) {
80 _thread = thread;
81 _id = sig;
82 _pc = pc;
83 _siginfo = siginfo;
84 _context = context;
85
86 _verbose = false;
87 _current_step = 0;
88 _current_step_info = NULL;
89
90 _message = NULL;
91 _detail_msg = NULL;
92 _filename = NULL;
93 _lineno = 0;
94
95 _size = 0;
96 }
97
98 // Constructor for internal errors
99 VMError::VMError(Thread* thread, const char* filename, int lineno,
100 const char* message, const char * detail_msg)
101 {
102 _thread = thread;
103 _id = INTERNAL_ERROR; // Value that's not an OS exception/signal
104 _filename = filename;
105 _lineno = lineno;
106 _message = message;
107 _detail_msg = detail_msg;
108
109 _verbose = false;
110 _current_step = 0;
111 _current_step_info = NULL;
112
113 _pc = NULL;
114 _siginfo = NULL;
115 _context = NULL;
116
117 _size = 0;
118 }
119
120 // Constructor for OOM errors
121 VMError::VMError(Thread* thread, const char* filename, int lineno, size_t size,
122 VMErrorType vm_err_type, const char* message) {
123 _thread = thread;
124 _id = vm_err_type; // Value that's not an OS exception/signal
125 _filename = filename;
126 _lineno = lineno;
127 _message = message;
128 _detail_msg = NULL;
129
130 _verbose = false;
131 _current_step = 0;
132 _current_step_info = NULL;
133
134 _pc = NULL;
135 _siginfo = NULL;
136 _context = NULL;
137
138 _size = size;
139 }
140
141
142 // Constructor for non-fatal errors
143 VMError::VMError(const char* message) {
144 _thread = NULL;
145 _id = INTERNAL_ERROR; // Value that's not an OS exception/signal
146 _filename = NULL;
147 _lineno = 0;
148 _message = message;
149 _detail_msg = NULL;
150
151 _verbose = false;
152 _current_step = 0;
153 _current_step_info = NULL;
154
155 _pc = NULL;
156 _siginfo = NULL;
157 _context = NULL;
158
159 _size = 0;
160 }
161
162 // -XX:OnError=<string>, where <string> can be a list of commands, separated
163 // by ';'. "%p" is replaced by current process id (pid); "%%" is replaced by
164 // a single "%". Some examples:
165 //
166 // -XX:OnError="pmap %p" // show memory map
167 // -XX:OnError="gcore %p; dbx - %p" // dump core and launch debugger
168 // -XX:OnError="cat hs_err_pid%p.log | mail my_email@sun.com"
169 // -XX:OnError="kill -9 %p" // ?#!@#
170
171 // A simple parser for -XX:OnError, usage:
172 // ptr = OnError;
173 // while ((cmd = next_OnError_command(buffer, sizeof(buffer), &ptr) != NULL)
174 // ... ...
175 static char* next_OnError_command(char* buf, int buflen, const char** ptr) {
176 if (ptr == NULL || *ptr == NULL) return NULL;
177
178 const char* cmd = *ptr;
179
180 // skip leading blanks or ';'
181 while (*cmd == ' ' || *cmd == ';') cmd++;
182
183 if (*cmd == '\0') return NULL;
184
185 const char * cmdend = cmd;
186 while (*cmdend != '\0' && *cmdend != ';') cmdend++;
187
188 Arguments::copy_expand_pid(cmd, cmdend - cmd, buf, buflen);
189
190 *ptr = (*cmdend == '\0' ? cmdend : cmdend + 1);
191 return buf;
192 }
193
194
195 static void print_bug_submit_message(outputStream *out, Thread *thread) {
196 if (out == NULL) return;
197 out->print_raw_cr("# If you would like to submit a bug report, please visit:");
198 out->print_raw ("# ");
199 out->print_raw_cr(Arguments::java_vendor_url_bug());
200 // If the crash is in native code, encourage user to submit a bug to the
201 // provider of that code.
202 if (thread && thread->is_Java_thread() &&
203 !thread->is_hidden_from_external_view()) {
204 JavaThread* jt = (JavaThread*)thread;
205 if (jt->thread_state() == _thread_in_native) {
206 out->print_cr("# The crash happened outside the Java Virtual Machine in native code.\n# See problematic frame for where to report the bug.");
207 }
208 }
209 out->print_raw_cr("#");
210 }
211
212 bool VMError::coredump_status;
213 char VMError::coredump_message[O_BUFLEN];
214
215 void VMError::report_coredump_status(const char* message, bool status) {
216 coredump_status = status;
217 strncpy(coredump_message, message, sizeof(coredump_message));
218 coredump_message[sizeof(coredump_message)-1] = 0;
219 }
220
221
222 // Return a string to describe the error
223 char* VMError::error_string(char* buf, int buflen) {
224 char signame_buf[64];
225 const char *signame = os::exception_name(_id, signame_buf, sizeof(signame_buf));
226
227 if (signame) {
228 jio_snprintf(buf, buflen,
229 "%s (0x%x) at pc=" PTR_FORMAT ", pid=%d, tid=" UINTX_FORMAT,
230 signame, _id, _pc,
231 os::current_process_id(), os::current_thread_id());
232 } else if (_filename != NULL && _lineno > 0) {
233 // skip directory names
234 char separator = os::file_separator()[0];
235 const char *p = strrchr(_filename, separator);
236 int n = jio_snprintf(buf, buflen,
237 "Internal Error at %s:%d, pid=%d, tid=" UINTX_FORMAT,
238 p ? p + 1 : _filename, _lineno,
239 os::current_process_id(), os::current_thread_id());
240 if (n >= 0 && n < buflen && _message) {
241 if (_detail_msg) {
242 jio_snprintf(buf + n, buflen - n, "%s%s: %s",
243 os::line_separator(), _message, _detail_msg);
244 } else {
245 jio_snprintf(buf + n, buflen - n, "%sError: %s",
246 os::line_separator(), _message);
247 }
248 }
249 } else {
250 jio_snprintf(buf, buflen,
251 "Internal Error (0x%x), pid=%d, tid=" UINTX_FORMAT,
252 _id, os::current_process_id(), os::current_thread_id());
253 }
254
255 return buf;
256 }
257
258 void VMError::print_stack_trace(outputStream* st, JavaThread* jt,
259 char* buf, int buflen, bool verbose) {
260 #ifdef ZERO
261 if (jt->zero_stack()->sp() && jt->top_zero_frame()) {
262 // StackFrameStream uses the frame anchor, which may not have
263 // been set up. This can be done at any time in Zero, however,
264 // so if it hasn't been set up then we just set it up now and
265 // clear it again when we're done.
266 bool has_last_Java_frame = jt->has_last_Java_frame();
267 if (!has_last_Java_frame)
268 jt->set_last_Java_frame();
269 st->print("Java frames:");
270
271 // If the top frame is a Shark frame and the frame anchor isn't
272 // set up then it's possible that the information in the frame
273 // is garbage: it could be from a previous decache, or it could
274 // simply have never been written. So we print a warning...
275 StackFrameStream sfs(jt);
276 if (!has_last_Java_frame && !sfs.is_done()) {
277 if (sfs.current()->zeroframe()->is_shark_frame()) {
278 st->print(" (TOP FRAME MAY BE JUNK)");
279 }
280 }
281 st->cr();
282
283 // Print the frames
284 for(int i = 0; !sfs.is_done(); sfs.next(), i++) {
285 sfs.current()->zero_print_on_error(i, st, buf, buflen);
286 st->cr();
287 }
288
289 // Reset the frame anchor if necessary
290 if (!has_last_Java_frame)
291 jt->reset_last_Java_frame();
292 }
293 #else
294 if (jt->has_last_Java_frame()) {
295 st->print_cr("Java frames: (J=compiled Java code, j=interpreted, Vv=VM code)");
296 for(StackFrameStream sfs(jt); !sfs.is_done(); sfs.next()) {
297 sfs.current()->print_on_error(st, buf, buflen, verbose);
298 st->cr();
299 }
300 }
301 #endif // ZERO
302 }
303
304 // This is the main function to report a fatal error. Only one thread can
305 // call this function, so we don't need to worry about MT-safety. But it's
306 // possible that the error handler itself may crash or die on an internal
307 // error, for example, when the stack/heap is badly damaged. We must be
308 // able to handle recursive errors that happen inside error handler.
309 //
310 // Error reporting is done in several steps. If a crash or internal error
311 // occurred when reporting an error, the nested signal/exception handler
312 // can skip steps that are already (or partially) done. Error reporting will
313 // continue from the next step. This allows us to retrieve and print
314 // information that may be unsafe to get after a fatal error. If it happens,
315 // you may find nested report_and_die() frames when you look at the stack
316 // in a debugger.
317 //
318 // In general, a hang in error handler is much worse than a crash or internal
319 // error, as it's harder to recover from a hang. Deadlock can happen if we
320 // try to grab a lock that is already owned by current thread, or if the
321 // owner is blocked forever (e.g. in os::infinite_sleep()). If possible, the
322 // error handler and all the functions it called should avoid grabbing any
323 // lock. An important thing to notice is that memory allocation needs a lock.
324 //
325 // We should avoid using large stack allocated buffers. Many errors happen
326 // when stack space is already low. Making things even worse is that there
327 // could be nested report_and_die() calls on stack (see above). Only one
328 // thread can report error, so large buffers are statically allocated in data
329 // segment.
330
331 void VMError::report(outputStream* st) {
332 # define BEGIN if (_current_step == 0) { _current_step = 1;
333 # define STEP(n, s) } if (_current_step < n) { _current_step = n; _current_step_info = s;
334 # define END }
335
336 // don't allocate large buffer on stack
337 static char buf[O_BUFLEN];
338
339 BEGIN
340
341 STEP(10, "(printing fatal error message)")
342
343 st->print_cr("#");
344 if (should_report_bug(_id)) {
345 st->print_cr("# A fatal error has been detected by the Java Runtime Environment:");
346 } else {
347 st->print_cr("# There is insufficient memory for the Java "
348 "Runtime Environment to continue.");
349 }
350
351 STEP(15, "(printing type of error)")
352
353 switch(_id) {
354 case OOM_MALLOC_ERROR:
355 case OOM_MMAP_ERROR:
356 if (_size) {
357 st->print("# Native memory allocation ");
358 st->print((_id == (int)OOM_MALLOC_ERROR) ? "(malloc) failed to allocate " :
359 "(mmap) failed to map ");
360 jio_snprintf(buf, sizeof(buf), SIZE_FORMAT, _size);
361 st->print(buf);
362 st->print(" bytes");
363 if (_message != NULL) {
364 st->print(" for ");
365 st->print(_message);
366 }
367 st->cr();
368 } else {
369 if (_message != NULL)
370 st->print("# ");
371 st->print_cr(_message);
372 }
373 // In error file give some solutions
374 if (_verbose) {
375 st->print_cr("# Possible reasons:");
376 st->print_cr("# The system is out of physical RAM or swap space");
377 st->print_cr("# In 32 bit mode, the process size limit was hit");
378 st->print_cr("# Possible solutions:");
379 st->print_cr("# Reduce memory load on the system");
380 st->print_cr("# Increase physical memory or swap space");
381 st->print_cr("# Check if swap backing store is full");
382 st->print_cr("# Use 64 bit Java on a 64 bit OS");
383 st->print_cr("# Decrease Java heap size (-Xmx/-Xms)");
384 st->print_cr("# Decrease number of Java threads");
385 st->print_cr("# Decrease Java thread stack sizes (-Xss)");
386 st->print_cr("# Set larger code cache with -XX:ReservedCodeCacheSize=");
387 st->print_cr("# This output file may be truncated or incomplete.");
388 } else {
389 return; // that's enough for the screen
390 }
391 break;
392 case INTERNAL_ERROR:
393 default:
394 break;
395 }
396
397 STEP(20, "(printing exception/signal name)")
398
399 st->print_cr("#");
400 st->print("# ");
401 // Is it an OS exception/signal?
402 if (os::exception_name(_id, buf, sizeof(buf))) {
403 st->print("%s", buf);
404 st->print(" (0x%x)", _id); // signal number
405 st->print(" at pc=" PTR_FORMAT, _pc);
406 } else {
407 if (should_report_bug(_id)) {
408 st->print("Internal Error");
409 } else {
410 st->print("Out of Memory Error");
411 }
412 if (_filename != NULL && _lineno > 0) {
413 #ifdef PRODUCT
414 // In product mode chop off pathname?
415 char separator = os::file_separator()[0];
416 const char *p = strrchr(_filename, separator);
417 const char *file = p ? p+1 : _filename;
418 #else
419 const char *file = _filename;
420 #endif
421 size_t len = strlen(file);
422 size_t buflen = sizeof(buf);
423
424 strncpy(buf, file, buflen);
425 if (len + 10 < buflen) {
426 sprintf(buf + len, ":%d", _lineno);
427 }
428 st->print(" (%s)", buf);
429 } else {
430 st->print(" (0x%x)", _id);
431 }
432 }
433
434 STEP(30, "(printing current thread and pid)")
435
436 // process id, thread id
437 st->print(", pid=%d", os::current_process_id());
438 st->print(", tid=" UINTX_FORMAT, os::current_thread_id());
439 st->cr();
440
441 STEP(40, "(printing error message)")
442
443 if (should_report_bug(_id)) { // already printed the message.
444 // error message
445 if (_detail_msg) {
446 st->print_cr("# %s: %s", _message ? _message : "Error", _detail_msg);
447 } else if (_message) {
448 st->print_cr("# Error: %s", _message);
449 }
450 }
451
452 STEP(50, "(printing Java version string)")
453
454 // VM version
455 st->print_cr("#");
456 JDK_Version::current().to_string(buf, sizeof(buf));
457 const char* runtime_name = JDK_Version::runtime_name() != NULL ?
458 JDK_Version::runtime_name() : "";
459 const char* runtime_version = JDK_Version::runtime_version() != NULL ?
460 JDK_Version::runtime_version() : "";
461 st->print_cr("# JRE version: %s (%s) (build %s)", runtime_name, buf, runtime_version);
462 st->print_cr("# Java VM: %s (%s %s %s %s)",
463 Abstract_VM_Version::vm_name(),
464 Abstract_VM_Version::vm_release(),
465 Abstract_VM_Version::vm_info_string(),
466 Abstract_VM_Version::vm_platform_string(),
467 UseCompressedOops ? "compressed oops" : ""
468 );
469
470 STEP(60, "(printing problematic frame)")
471
472 // Print current frame if we have a context (i.e. it's a crash)
473 if (_context) {
474 st->print_cr("# Problematic frame:");
475 st->print("# ");
476 frame fr = os::fetch_frame_from_context(_context);
477 fr.print_on_error(st, buf, sizeof(buf));
478 st->cr();
479 st->print_cr("#");
480 }
481 STEP(63, "(printing core file information)")
482 st->print("# ");
483 if (coredump_status) {
484 st->print("Core dump written. Default location: %s", coredump_message);
485 } else {
486 st->print("Failed to write core dump. %s", coredump_message);
487 }
488 st->print_cr("");
489 st->print_cr("#");
490
491 STEP(65, "(printing bug submit message)")
492
493 if (should_report_bug(_id) && _verbose) {
494 print_bug_submit_message(st, _thread);
495 }
496
497 STEP(70, "(printing thread)" )
498
499 if (_verbose) {
500 st->cr();
501 st->print_cr("--------------- T H R E A D ---------------");
502 st->cr();
503 }
504
505 STEP(80, "(printing current thread)" )
506
507 // current thread
508 if (_verbose) {
509 if (_thread) {
510 st->print("Current thread (" PTR_FORMAT "): ", _thread);
511 _thread->print_on_error(st, buf, sizeof(buf));
512 st->cr();
513 } else {
514 st->print_cr("Current thread is native thread");
515 }
516 st->cr();
517 }
518
519 STEP(90, "(printing siginfo)" )
520
521 // signal no, signal code, address that caused the fault
522 if (_verbose && _siginfo) {
523 os::print_siginfo(st, _siginfo);
524 st->cr();
525 }
526
527 STEP(100, "(printing registers, top of stack, instructions near pc)")
528
529 // registers, top of stack, instructions near pc
530 if (_verbose && _context) {
531 os::print_context(st, _context);
532 st->cr();
533 }
534
535 STEP(105, "(printing register info)")
536
537 // decode register contents if possible
538 if (_verbose && _context && Universe::is_fully_initialized()) {
539 os::print_register_info(st, _context);
540 st->cr();
541 }
542
543 STEP(110, "(printing stack bounds)" )
544
545 if (_verbose) {
546 st->print("Stack: ");
547
548 address stack_top;
549 size_t stack_size;
550
551 if (_thread) {
552 stack_top = _thread->stack_base();
553 stack_size = _thread->stack_size();
554 } else {
555 stack_top = os::current_stack_base();
556 stack_size = os::current_stack_size();
557 }
558
559 address stack_bottom = stack_top - stack_size;
560 st->print("[" PTR_FORMAT "," PTR_FORMAT "]", stack_bottom, stack_top);
561
562 frame fr = _context ? os::fetch_frame_from_context(_context)
563 : os::current_frame();
564
565 if (fr.sp()) {
566 st->print(", sp=" PTR_FORMAT, fr.sp());
567 size_t free_stack_size = pointer_delta(fr.sp(), stack_bottom, 1024);
568 st->print(", free space=" SIZE_FORMAT "k", free_stack_size);
569 }
570
571 st->cr();
572 }
573
574 STEP(120, "(printing native stack)" )
575
576 if (_verbose) {
577 frame fr = _context ? os::fetch_frame_from_context(_context)
578 : os::current_frame();
579
580 // see if it's a valid frame
581 if (fr.pc()) {
582 st->print_cr("Native frames: (J=compiled Java code, j=interpreted, Vv=VM code, C=native code)");
583
584
585 int count = 0;
586 while (count++ < StackPrintLimit) {
587 fr.print_on_error(st, buf, sizeof(buf));
588 st->cr();
589 // Compiled code may use EBP register on x86 so it looks like
590 // non-walkable C frame. Use frame.sender() for java frames.
591 if (_thread && _thread->is_Java_thread() && fr.is_java_frame()) {
592 RegisterMap map((JavaThread*)_thread, false); // No update
593 fr = fr.sender(&map);
594 continue;
595 }
596 if (os::is_first_C_frame(&fr)) break;
597 fr = os::get_sender_for_C_frame(&fr);
598 }
599
600 if (count > StackPrintLimit) {
601 st->print_cr("...<more frames>...");
602 }
603
604 st->cr();
605 }
606 }
607
608 STEP(130, "(printing Java stack)" )
609
610 if (_verbose && _thread && _thread->is_Java_thread()) {
611 print_stack_trace(st, (JavaThread*)_thread, buf, sizeof(buf));
612 }
613
614 STEP(135, "(printing target Java thread stack)" )
615
616 // printing Java thread stack trace if it is involved in GC crash
617 if (_verbose && _thread && (_thread->is_Named_thread())) {
618 JavaThread* jt = ((NamedThread *)_thread)->processed_thread();
619 if (jt != NULL) {
620 st->print_cr("JavaThread " PTR_FORMAT " (nid = " UINTX_FORMAT ") was being processed", jt, jt->osthread()->thread_id());
621 print_stack_trace(st, jt, buf, sizeof(buf), true);
622 }
623 }
624
625 STEP(140, "(printing VM operation)" )
626
627 if (_verbose && _thread && _thread->is_VM_thread()) {
628 VMThread* t = (VMThread*)_thread;
629 VM_Operation* op = t->vm_operation();
630 if (op) {
631 op->print_on_error(st);
632 st->cr();
633 st->cr();
634 }
635 }
636
637 STEP(150, "(printing current compile task)" )
638
639 if (_verbose && _thread && _thread->is_Compiler_thread()) {
640 CompilerThread* t = (CompilerThread*)_thread;
641 if (t->task()) {
642 st->cr();
643 st->print_cr("Current CompileTask:");
644 t->task()->print_line_on_error(st, buf, sizeof(buf));
645 st->cr();
646 }
647 }
648
649 STEP(160, "(printing process)" )
650
651 if (_verbose) {
652 st->cr();
653 st->print_cr("--------------- P R O C E S S ---------------");
654 st->cr();
655 }
656
657 STEP(170, "(printing all threads)" )
658
659 // all threads
660 if (_verbose && _thread) {
661 Threads::print_on_error(st, _thread, buf, sizeof(buf));
662 st->cr();
663 }
664
665 STEP(175, "(printing VM state)" )
666
667 if (_verbose) {
668 // Safepoint state
669 st->print("VM state:");
670
671 if (SafepointSynchronize::is_synchronizing()) st->print("synchronizing");
672 else if (SafepointSynchronize::is_at_safepoint()) st->print("at safepoint");
673 else st->print("not at safepoint");
674
675 // Also see if error occurred during initialization or shutdown
676 if (!Universe::is_fully_initialized()) {
677 st->print(" (not fully initialized)");
678 } else if (VM_Exit::vm_exited()) {
679 st->print(" (shutting down)");
680 } else {
681 st->print(" (normal execution)");
682 }
683 st->cr();
684 st->cr();
685 }
686
687 STEP(180, "(printing owned locks on error)" )
688
689 // mutexes/monitors that currently have an owner
690 if (_verbose) {
691 print_owned_locks_on_error(st);
692 st->cr();
693 }
694
695 STEP(190, "(printing heap information)" )
696
697 if (_verbose && Universe::is_fully_initialized()) {
698 Universe::heap()->print_on_error(st);
699 st->cr();
700
701 st->print_cr("Polling page: " INTPTR_FORMAT, os::get_polling_page());
702 st->cr();
703 }
704
705 STEP(195, "(printing code cache information)" )
706
707 if (_verbose && Universe::is_fully_initialized()) {
708 // print code cache information before vm abort
709 CodeCache::print_summary(st);
710 st->cr();
711 }
712
713 STEP(200, "(printing ring buffers)" )
714
715 if (_verbose) {
716 Events::print_all(st);
717 st->cr();
718 }
719
720 STEP(205, "(printing dynamic libraries)" )
721
722 if (_verbose) {
723 // dynamic libraries, or memory map
724 os::print_dll_info(st);
725 st->cr();
726 }
727
728 STEP(210, "(printing VM options)" )
729
730 if (_verbose) {
731 // VM options
732 Arguments::print_on(st);
733 st->cr();
734 }
735
736 STEP(215, "(printing warning if internal testing API used)" )
737
738 if (WhiteBox::used()) {
739 st->print_cr("Unsupported internal testing APIs have been used.");
740 st->cr();
741 }
742
743 STEP(220, "(printing environment variables)" )
744
745 if (_verbose) {
746 os::print_environment_variables(st, env_list, buf, sizeof(buf));
747 st->cr();
748 }
749
750 STEP(225, "(printing signal handlers)" )
751
752 if (_verbose) {
753 os::print_signal_handlers(st, buf, sizeof(buf));
754 st->cr();
755 }
756
757 STEP(230, "" )
758
759 if (_verbose) {
760 st->cr();
761 st->print_cr("--------------- S Y S T E M ---------------");
762 st->cr();
763 }
764
765 STEP(240, "(printing OS information)" )
766
767 if (_verbose) {
768 os::print_os_info(st);
769 st->cr();
770 }
771
772 STEP(250, "(printing CPU info)" )
773 if (_verbose) {
774 os::print_cpu_info(st);
775 st->cr();
776 }
777
778 STEP(260, "(printing memory info)" )
779
780 if (_verbose) {
781 os::print_memory_info(st);
782 st->cr();
783 }
784
785 STEP(270, "(printing internal vm info)" )
786
787 if (_verbose) {
788 st->print_cr("vm_info: %s", Abstract_VM_Version::internal_vm_info_string());
789 st->cr();
790 }
791
792 STEP(280, "(printing date and time)" )
793
794 if (_verbose) {
795 os::print_date_and_time(st);
796 st->cr();
797 }
798
799 END
800
801 # undef BEGIN
802 # undef STEP
803 # undef END
804 }
805
806 VMError* volatile VMError::first_error = NULL;
807 volatile jlong VMError::first_error_tid = -1;
808
809 // An error could happen before tty is initialized or after it has been
810 // destroyed. Here we use a very simple unbuffered fdStream for printing.
811 // Only out.print_raw() and out.print_raw_cr() should be used, as other
812 // printing methods need to allocate large buffer on stack. To format a
813 // string, use jio_snprintf() with a static buffer or use staticBufferStream.
814 fdStream VMError::out(defaultStream::output_fd());
815 fdStream VMError::log; // error log used by VMError::report_and_die()
816
817 /** Expand a pattern into a buffer starting at pos and open a file using constructed path */
818 static int expand_and_open(const char* pattern, char* buf, size_t buflen, size_t pos) {
819 int fd = -1;
820 if (Arguments::copy_expand_pid(pattern, strlen(pattern), &buf[pos], buflen - pos)) {
821 fd = open(buf, O_RDWR | O_CREAT | O_TRUNC, 0666);
822 }
823 return fd;
824 }
825
826 /**
827 * Construct file name for a log file and return it's file descriptor.
828 * Name and location depends on pattern, default_pattern params and access
829 * permissions.
830 */
831 static int prepare_log_file(const char* pattern, const char* default_pattern, char* buf, size_t buflen) {
832 int fd = -1;
833
834 // If possible, use specified pattern to construct log file name
835 if (pattern != NULL) {
836 fd = expand_and_open(pattern, buf, buflen, 0);
837 }
838
839 // Either user didn't specify, or the user's location failed,
840 // so use the default name in the current directory
841 if (fd == -1) {
842 const char* cwd = os::get_current_directory(buf, buflen);
843 if (cwd != NULL) {
844 size_t pos = strlen(cwd);
845 int fsep_len = jio_snprintf(&buf[pos], buflen-pos, "%s", os::file_separator());
846 pos += fsep_len;
847 if (fsep_len > 0) {
848 fd = expand_and_open(default_pattern, buf, buflen, pos);
849 }
850 }
851 }
852
853 // try temp directory if it exists.
854 if (fd == -1) {
855 const char* tmpdir = os::get_temp_directory();
856 if (tmpdir != NULL && strlen(tmpdir) > 0) {
857 int pos = jio_snprintf(buf, buflen, "%s%s", tmpdir, os::file_separator());
858 if (pos > 0) {
859 fd = expand_and_open(default_pattern, buf, buflen, pos);
860 }
861 }
862 }
863
864 return fd;
865 }
866
867 void VMError::report_and_die() {
868 // Don't allocate large buffer on stack
869 static char buffer[O_BUFLEN];
870
871 // How many errors occurred in error handler when reporting first_error.
872 static int recursive_error_count;
873
874 // We will first print a brief message to standard out (verbose = false),
875 // then save detailed information in log file (verbose = true).
876 static bool out_done = false; // done printing to standard out
877 static bool log_done = false; // done saving error log
878 static bool transmit_report_done = false; // done error reporting
879
880 // disble NMT to avoid further exception
881 MemTracker::shutdown(MemTracker::NMT_error_reporting);
882
883 if (SuppressFatalErrorMessage) {
884 os::abort();
885 }
886 jlong mytid = os::current_thread_id();
887 if (first_error == NULL &&
888 Atomic::cmpxchg_ptr(this, &first_error, NULL) == NULL) {
889
890 // first time
891 first_error_tid = mytid;
892 set_error_reported();
893
894 if (ShowMessageBoxOnError || PauseAtExit) {
895 show_message_box(buffer, sizeof(buffer));
896
897 // User has asked JVM to abort. Reset ShowMessageBoxOnError so the
898 // WatcherThread can kill JVM if the error handler hangs.
899 ShowMessageBoxOnError = false;
900 }
901
902 // Write a minidump on Windows, check core dump limits on Linux/Solaris
903 os::check_or_create_dump(_siginfo, _context, buffer, sizeof(buffer));
904
905 // reset signal handlers or exception filter; make sure recursive crashes
906 // are handled properly.
907 reset_signal_handlers();
908
909 } else {
910 // If UseOsErrorReporting we call this for each level of the call stack
911 // while searching for the exception handler. Only the first level needs
912 // to be reported.
913 if (UseOSErrorReporting && log_done) return;
914
915 // This is not the first error, see if it happened in a different thread
916 // or in the same thread during error reporting.
917 if (first_error_tid != mytid) {
918 char msgbuf[64];
919 jio_snprintf(msgbuf, sizeof(msgbuf),
920 "[thread " INT64_FORMAT " also had an error]",
921 mytid);
922 out.print_raw_cr(msgbuf);
923
924 // error reporting is not MT-safe, block current thread
925 os::infinite_sleep();
926
927 } else {
928 if (recursive_error_count++ > 30) {
929 out.print_raw_cr("[Too many errors, abort]");
930 os::die();
931 }
932
933 jio_snprintf(buffer, sizeof(buffer),
934 "[error occurred during error reporting %s, id 0x%x]",
935 first_error ? first_error->_current_step_info : "",
936 _id);
937 if (log.is_open()) {
938 log.cr();
939 log.print_raw_cr(buffer);
940 log.cr();
941 } else {
942 out.cr();
943 out.print_raw_cr(buffer);
944 out.cr();
945 }
946 }
947 }
948
949 // print to screen
950 if (!out_done) {
951 first_error->_verbose = false;
952
953 staticBufferStream sbs(buffer, sizeof(buffer), &out);
954 first_error->report(&sbs);
955
956 out_done = true;
957
958 first_error->_current_step = 0; // reset current_step
959 first_error->_current_step_info = ""; // reset current_step string
960 }
961
962 // print to error log file
963 if (!log_done) {
964 first_error->_verbose = true;
965
966 // see if log file is already open
967 if (!log.is_open()) {
968 // open log file
969 int fd = prepare_log_file(ErrorFile, "hs_err_pid%p.log", buffer, sizeof(buffer));
970 if (fd != -1) {
971 out.print_raw("# An error report file with more information is saved as:\n# ");
972 out.print_raw_cr(buffer);
973 os::set_error_file(buffer);
974
975 log.set_fd(fd);
976 } else {
977 out.print_raw_cr("# Can not save log file, dump to screen..");
978 log.set_fd(defaultStream::output_fd());
979 /* Error reporting currently needs dumpfile.
980 * Maybe implement direct streaming in the future.*/
981 transmit_report_done = true;
982 }
983 }
984
985 staticBufferStream sbs(buffer, O_BUFLEN, &log);
986 first_error->report(&sbs);
987 first_error->_current_step = 0; // reset current_step
988 first_error->_current_step_info = ""; // reset current_step string
989
990 // Run error reporting to determine whether or not to report the crash.
991 if (!transmit_report_done && should_report_bug(first_error->_id)) {
992 transmit_report_done = true;
993 FILE* hs_err = os::open(log.fd(), "r");
994 if (NULL != hs_err) {
995 ErrorReporter er;
996 er.call(hs_err, buffer, O_BUFLEN);
997 }
998 }
999
1000 if (log.fd() != defaultStream::output_fd()) {
1001 close(log.fd());
1002 }
1003
1004 log.set_fd(-1);
1005 log_done = true;
1006 }
1007
1008
1009 static bool skip_OnError = false;
1010 if (!skip_OnError && OnError && OnError[0]) {
1011 skip_OnError = true;
1012
1013 out.print_raw_cr("#");
1014 out.print_raw ("# -XX:OnError=\"");
1015 out.print_raw (OnError);
1016 out.print_raw_cr("\"");
1017
1018 char* cmd;
1019 const char* ptr = OnError;
1020 while ((cmd = next_OnError_command(buffer, sizeof(buffer), &ptr)) != NULL){
1021 out.print_raw ("# Executing ");
1022 #if defined(LINUX) || defined(_ALLBSD_SOURCE)
1023 out.print_raw ("/bin/sh -c ");
1024 #elif defined(SOLARIS)
1025 out.print_raw ("/usr/bin/sh -c ");
1026 #endif
1027 out.print_raw ("\"");
1028 out.print_raw (cmd);
1029 out.print_raw_cr("\" ...");
1030
1031 os::fork_and_exec(cmd);
1032 }
1033
1034 // done with OnError
1035 OnError = NULL;
1036 }
1037
1038 static bool skip_replay = false;
1039 if (DumpReplayDataOnError && _thread && _thread->is_Compiler_thread() && !skip_replay) {
1040 skip_replay = true;
1041 ciEnv* env = ciEnv::current();
1042 if (env != NULL) {
1043 int fd = prepare_log_file(ReplayDataFile, "replay_pid%p.log", buffer, sizeof(buffer));
1044 if (fd != -1) {
1045 FILE* replay_data_file = os::open(fd, "w");
1046 if (replay_data_file != NULL) {
1047 fileStream replay_data_stream(replay_data_file, /*need_close=*/true);
1048 env->dump_replay_data(&replay_data_stream);
1049 out.print_raw("#\n# Compiler replay data is saved as:\n# ");
1050 out.print_raw_cr(buffer);
1051 } else {
1052 out.print_raw("#\n# Can't open file to dump replay data. Error: ");
1053 out.print_raw_cr(strerror(os::get_last_error()));
1054 }
1055 }
1056 }
1057 }
1058
1059 static bool skip_bug_url = !should_report_bug(first_error->_id);
1060 if (!skip_bug_url) {
1061 skip_bug_url = true;
1062
1063 out.print_raw_cr("#");
1064 print_bug_submit_message(&out, _thread);
1065 }
1066
1067 if (!UseOSErrorReporting) {
1068 // os::abort() will call abort hooks, try it first.
1069 static bool skip_os_abort = false;
1070 if (!skip_os_abort) {
1071 skip_os_abort = true;
1072 bool dump_core = should_report_bug(first_error->_id);
1073 os::abort(dump_core);
1074 }
1075
1076 // if os::abort() doesn't abort, try os::die();
1077 os::die();
1078 }
1079 }
1080
1081 /*
1082 * OnOutOfMemoryError scripts/commands executed while VM is a safepoint - this
1083 * ensures utilities such as jmap can observe the process is a consistent state.
1084 */
1085 class VM_ReportJavaOutOfMemory : public VM_Operation {
1086 private:
1087 VMError *_err;
1088 public:
1089 VM_ReportJavaOutOfMemory(VMError *err) { _err = err; }
1090 VMOp_Type type() const { return VMOp_ReportJavaOutOfMemory; }
1091 void doit();
1092 };
1093
1094 void VM_ReportJavaOutOfMemory::doit() {
1095 // Don't allocate large buffer on stack
1096 static char buffer[O_BUFLEN];
1097
1098 tty->print_cr("#");
1099 tty->print_cr("# java.lang.OutOfMemoryError: %s", _err->message());
1100 tty->print_cr("# -XX:OnOutOfMemoryError=\"%s\"", OnOutOfMemoryError);
1101
1102 // make heap parsability
1103 Universe::heap()->ensure_parsability(false); // no need to retire TLABs
1104
1105 char* cmd;
1106 const char* ptr = OnOutOfMemoryError;
1107 while ((cmd = next_OnError_command(buffer, sizeof(buffer), &ptr)) != NULL){
1108 tty->print("# Executing ");
1109 #if defined(LINUX)
1110 tty->print ("/bin/sh -c ");
1111 #elif defined(SOLARIS)
1112 tty->print ("/usr/bin/sh -c ");
1113 #endif
1114 tty->print_cr("\"%s\"...", cmd);
1115
1116 os::fork_and_exec(cmd);
1117 }
1118 }
1119
1120 void VMError::report_java_out_of_memory() {
1121 if (OnOutOfMemoryError && OnOutOfMemoryError[0]) {
1122 MutexLocker ml(Heap_lock);
1123 VM_ReportJavaOutOfMemory op(this);
1124 VMThread::execute(&op);
1125 }
1126 }