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src/share/vm/utilities/vmError.cpp@24b9c7f4cae6
src/share/vm/utilities/vmError.cpp
Mon, 02 Jul 2012 13:11:28 -0400
- author
- coleenp
- date
- Mon, 02 Jul 2012 13:11:28 -0400
- changeset 3901
- 24b9c7f4cae6
- parent 3884
- f8de958e5b2c
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- d2a62e0f25eb
- child 4232
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Merge
1 /*
2 * Copyright (c) 2003, 2012, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 *
23 */
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"
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",
51 // Env variables that are defined on Solaris/Linux/BSD
52 "LD_LIBRARY_PATH", "LD_PRELOAD", "SHELL", "DISPLAY",
53 "HOSTTYPE", "OSTYPE", "ARCH", "MACHTYPE",
55 // defined on Linux
56 "LD_ASSUME_KERNEL", "_JAVA_SR_SIGNUM",
58 // defined on Darwin
59 "DYLD_LIBRARY_PATH", "DYLD_FALLBACK_LIBRARY_PATH",
60 "DYLD_FRAMEWORK_PATH", "DYLD_FALLBACK_FRAMEWORK_PATH",
61 "DYLD_INSERT_LIBRARIES",
63 // defined on Windows
64 "OS", "PROCESSOR_IDENTIFIER", "_ALT_JAVA_HOME_DIR",
66 (const char *)0
67 };
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().
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;
86 _verbose = false;
87 _current_step = 0;
88 _current_step_info = NULL;
90 _message = NULL;
91 _detail_msg = NULL;
92 _filename = NULL;
93 _lineno = 0;
95 _size = 0;
96 }
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;
109 _verbose = false;
110 _current_step = 0;
111 _current_step_info = NULL;
113 _pc = NULL;
114 _siginfo = NULL;
115 _context = NULL;
117 _size = 0;
118 }
120 // Constructor for OOM errors
121 VMError::VMError(Thread* thread, const char* filename, int lineno, size_t size,
122 const char* message) {
123 _thread = thread;
124 _id = oom_error; // Value that's not an OS exception/signal
125 _filename = filename;
126 _lineno = lineno;
127 _message = message;
128 _detail_msg = NULL;
130 _verbose = false;
131 _current_step = 0;
132 _current_step_info = NULL;
134 _pc = NULL;
135 _siginfo = NULL;
136 _context = NULL;
138 _size = size;
139 }
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;
151 _verbose = false;
152 _current_step = 0;
153 _current_step_info = NULL;
155 _pc = NULL;
156 _siginfo = NULL;
157 _context = NULL;
159 _size = 0;
160 }
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" // ?#!@#
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;
178 const char* cmd = *ptr;
180 // skip leading blanks or ';'
181 while (*cmd == ' ' || *cmd == ';') cmd++;
183 if (*cmd == '\0') return NULL;
185 const char * cmdend = cmd;
186 while (*cmdend != '\0' && *cmdend != ';') cmdend++;
188 Arguments::copy_expand_pid(cmd, cmdend - cmd, buf, buflen);
190 *ptr = (*cmdend == '\0' ? cmdend : cmdend + 1);
191 return buf;
192 }
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 }
212 bool VMError::coredump_status;
213 char VMError::coredump_message[O_BUFLEN];
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 }
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));
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 }
255 return buf;
256 }
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:");
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();
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 }
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 }
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.
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 }
336 // don't allocate large buffer on stack
337 static char buf[O_BUFLEN];
339 BEGIN
341 STEP(10, "(printing fatal error message)")
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 }
351 STEP(15, "(printing type of error)")
353 switch(_id) {
354 case oom_error:
355 if (_size) {
356 st->print("# Native memory allocation (malloc) failed to allocate ");
357 jio_snprintf(buf, sizeof(buf), SIZE_FORMAT, _size);
358 st->print(buf);
359 st->print(" bytes");
360 if (_message != NULL) {
361 st->print(" for ");
362 st->print(_message);
363 }
364 st->cr();
365 } else {
366 if (_message != NULL)
367 st->print("# ");
368 st->print_cr(_message);
369 }
370 // In error file give some solutions
371 if (_verbose) {
372 st->print_cr("# Possible reasons:");
373 st->print_cr("# The system is out of physical RAM or swap space");
374 st->print_cr("# In 32 bit mode, the process size limit was hit");
375 st->print_cr("# Possible solutions:");
376 st->print_cr("# Reduce memory load on the system");
377 st->print_cr("# Increase physical memory or swap space");
378 st->print_cr("# Check if swap backing store is full");
379 st->print_cr("# Use 64 bit Java on a 64 bit OS");
380 st->print_cr("# Decrease Java heap size (-Xmx/-Xms)");
381 st->print_cr("# Decrease number of Java threads");
382 st->print_cr("# Decrease Java thread stack sizes (-Xss)");
383 st->print_cr("# Set larger code cache with -XX:ReservedCodeCacheSize=");
384 st->print_cr("# This output file may be truncated or incomplete.");
385 } else {
386 return; // that's enough for the screen
387 }
388 break;
389 case internal_error:
390 default:
391 break;
392 }
394 STEP(20, "(printing exception/signal name)")
396 st->print_cr("#");
397 st->print("# ");
398 // Is it an OS exception/signal?
399 if (os::exception_name(_id, buf, sizeof(buf))) {
400 st->print("%s", buf);
401 st->print(" (0x%x)", _id); // signal number
402 st->print(" at pc=" PTR_FORMAT, _pc);
403 } else {
404 if (should_report_bug(_id)) {
405 st->print("Internal Error");
406 } else {
407 st->print("Out of Memory Error");
408 }
409 if (_filename != NULL && _lineno > 0) {
410 #ifdef PRODUCT
411 // In product mode chop off pathname?
412 char separator = os::file_separator()[0];
413 const char *p = strrchr(_filename, separator);
414 const char *file = p ? p+1 : _filename;
415 #else
416 const char *file = _filename;
417 #endif
418 size_t len = strlen(file);
419 size_t buflen = sizeof(buf);
421 strncpy(buf, file, buflen);
422 if (len + 10 < buflen) {
423 sprintf(buf + len, ":%d", _lineno);
424 }
425 st->print(" (%s)", buf);
426 } else {
427 st->print(" (0x%x)", _id);
428 }
429 }
431 STEP(30, "(printing current thread and pid)")
433 // process id, thread id
434 st->print(", pid=%d", os::current_process_id());
435 st->print(", tid=" UINTX_FORMAT, os::current_thread_id());
436 st->cr();
438 STEP(40, "(printing error message)")
440 if (should_report_bug(_id)) { // already printed the message.
441 // error message
442 if (_detail_msg) {
443 st->print_cr("# %s: %s", _message ? _message : "Error", _detail_msg);
444 } else if (_message) {
445 st->print_cr("# Error: %s", _message);
446 }
447 }
449 STEP(50, "(printing Java version string)")
451 // VM version
452 st->print_cr("#");
453 JDK_Version::current().to_string(buf, sizeof(buf));
454 const char* runtime_name = JDK_Version::runtime_name() != NULL ?
455 JDK_Version::runtime_name() : "";
456 st->print_cr("# JRE version: %s (%s)", runtime_name, buf);
457 st->print_cr("# Java VM: %s (%s %s %s %s)",
458 Abstract_VM_Version::vm_name(),
459 Abstract_VM_Version::vm_release(),
460 Abstract_VM_Version::vm_info_string(),
461 Abstract_VM_Version::vm_platform_string(),
462 UseCompressedOops ? "compressed oops" : ""
463 );
465 STEP(60, "(printing problematic frame)")
467 // Print current frame if we have a context (i.e. it's a crash)
468 if (_context) {
469 st->print_cr("# Problematic frame:");
470 st->print("# ");
471 frame fr = os::fetch_frame_from_context(_context);
472 fr.print_on_error(st, buf, sizeof(buf));
473 st->cr();
474 st->print_cr("#");
475 }
476 STEP(63, "(printing core file information)")
477 st->print("# ");
478 if (coredump_status) {
479 st->print("Core dump written. Default location: %s", coredump_message);
480 } else {
481 st->print("Failed to write core dump. %s", coredump_message);
482 }
483 st->print_cr("");
484 st->print_cr("#");
486 STEP(65, "(printing bug submit message)")
488 if (should_report_bug(_id) && _verbose) {
489 print_bug_submit_message(st, _thread);
490 }
492 STEP(70, "(printing thread)" )
494 if (_verbose) {
495 st->cr();
496 st->print_cr("--------------- T H R E A D ---------------");
497 st->cr();
498 }
500 STEP(80, "(printing current thread)" )
502 // current thread
503 if (_verbose) {
504 if (_thread) {
505 st->print("Current thread (" PTR_FORMAT "): ", _thread);
506 _thread->print_on_error(st, buf, sizeof(buf));
507 st->cr();
508 } else {
509 st->print_cr("Current thread is native thread");
510 }
511 st->cr();
512 }
514 STEP(90, "(printing siginfo)" )
516 // signal no, signal code, address that caused the fault
517 if (_verbose && _siginfo) {
518 os::print_siginfo(st, _siginfo);
519 st->cr();
520 }
522 STEP(100, "(printing registers, top of stack, instructions near pc)")
524 // registers, top of stack, instructions near pc
525 if (_verbose && _context) {
526 os::print_context(st, _context);
527 st->cr();
528 }
530 STEP(105, "(printing register info)")
532 // decode register contents if possible
533 if (_verbose && _context && Universe::is_fully_initialized()) {
534 os::print_register_info(st, _context);
535 st->cr();
536 }
538 STEP(110, "(printing stack bounds)" )
540 if (_verbose) {
541 st->print("Stack: ");
543 address stack_top;
544 size_t stack_size;
546 if (_thread) {
547 stack_top = _thread->stack_base();
548 stack_size = _thread->stack_size();
549 } else {
550 stack_top = os::current_stack_base();
551 stack_size = os::current_stack_size();
552 }
554 address stack_bottom = stack_top - stack_size;
555 st->print("[" PTR_FORMAT "," PTR_FORMAT "]", stack_bottom, stack_top);
557 frame fr = _context ? os::fetch_frame_from_context(_context)
558 : os::current_frame();
560 if (fr.sp()) {
561 st->print(", sp=" PTR_FORMAT, fr.sp());
562 size_t free_stack_size = pointer_delta(fr.sp(), stack_bottom, 1024);
563 st->print(", free space=" SIZE_FORMAT "k", free_stack_size);
564 }
566 st->cr();
567 }
569 STEP(120, "(printing native stack)" )
571 if (_verbose) {
572 frame fr = _context ? os::fetch_frame_from_context(_context)
573 : os::current_frame();
575 // see if it's a valid frame
576 if (fr.pc()) {
577 st->print_cr("Native frames: (J=compiled Java code, j=interpreted, Vv=VM code, C=native code)");
580 int count = 0;
581 while (count++ < StackPrintLimit) {
582 fr.print_on_error(st, buf, sizeof(buf));
583 st->cr();
584 if (os::is_first_C_frame(&fr)) break;
585 fr = os::get_sender_for_C_frame(&fr);
586 }
588 if (count > StackPrintLimit) {
589 st->print_cr("...<more frames>...");
590 }
592 st->cr();
593 }
594 }
596 STEP(130, "(printing Java stack)" )
598 if (_verbose && _thread && _thread->is_Java_thread()) {
599 print_stack_trace(st, (JavaThread*)_thread, buf, sizeof(buf));
600 }
602 STEP(135, "(printing target Java thread stack)" )
604 // printing Java thread stack trace if it is involved in GC crash
605 if (_verbose && _thread && (_thread->is_Named_thread())) {
606 JavaThread* jt = ((NamedThread *)_thread)->processed_thread();
607 if (jt != NULL) {
608 st->print_cr("JavaThread " PTR_FORMAT " (nid = " UINTX_FORMAT ") was being processed", jt, jt->osthread()->thread_id());
609 print_stack_trace(st, jt, buf, sizeof(buf), true);
610 }
611 }
613 STEP(140, "(printing VM operation)" )
615 if (_verbose && _thread && _thread->is_VM_thread()) {
616 VMThread* t = (VMThread*)_thread;
617 VM_Operation* op = t->vm_operation();
618 if (op) {
619 op->print_on_error(st);
620 st->cr();
621 st->cr();
622 }
623 }
625 STEP(150, "(printing current compile task)" )
627 if (_verbose && _thread && _thread->is_Compiler_thread()) {
628 CompilerThread* t = (CompilerThread*)_thread;
629 if (t->task()) {
630 st->cr();
631 st->print_cr("Current CompileTask:");
632 t->task()->print_line_on_error(st, buf, sizeof(buf));
633 st->cr();
634 }
635 }
637 STEP(160, "(printing process)" )
639 if (_verbose) {
640 st->cr();
641 st->print_cr("--------------- P R O C E S S ---------------");
642 st->cr();
643 }
645 STEP(170, "(printing all threads)" )
647 // all threads
648 if (_verbose && _thread) {
649 Threads::print_on_error(st, _thread, buf, sizeof(buf));
650 st->cr();
651 }
653 STEP(175, "(printing VM state)" )
655 if (_verbose) {
656 // Safepoint state
657 st->print("VM state:");
659 if (SafepointSynchronize::is_synchronizing()) st->print("synchronizing");
660 else if (SafepointSynchronize::is_at_safepoint()) st->print("at safepoint");
661 else st->print("not at safepoint");
663 // Also see if error occurred during initialization or shutdown
664 if (!Universe::is_fully_initialized()) {
665 st->print(" (not fully initialized)");
666 } else if (VM_Exit::vm_exited()) {
667 st->print(" (shutting down)");
668 } else {
669 st->print(" (normal execution)");
670 }
671 st->cr();
672 st->cr();
673 }
675 STEP(180, "(printing owned locks on error)" )
677 // mutexes/monitors that currently have an owner
678 if (_verbose) {
679 print_owned_locks_on_error(st);
680 st->cr();
681 }
683 STEP(190, "(printing heap information)" )
685 if (_verbose && Universe::is_fully_initialized()) {
686 // Print heap information before vm abort. As we'd like as much
687 // information as possible in the report we ask for the
688 // extended (i.e., more detailed) version.
689 Universe::print_on(st, true /* extended */);
690 st->cr();
692 Universe::heap()->barrier_set()->print_on(st);
693 st->cr();
695 st->print_cr("Polling page: " INTPTR_FORMAT, os::get_polling_page());
696 st->cr();
697 }
699 STEP(195, "(printing code cache information)" )
701 if (_verbose && Universe::is_fully_initialized()) {
702 // print code cache information before vm abort
703 CodeCache::print_bounds(st);
704 st->cr();
705 }
707 STEP(200, "(printing ring buffers)" )
709 if (_verbose) {
710 Events::print_all(st);
711 st->cr();
712 }
714 STEP(205, "(printing dynamic libraries)" )
716 if (_verbose) {
717 // dynamic libraries, or memory map
718 os::print_dll_info(st);
719 st->cr();
720 }
722 STEP(210, "(printing VM options)" )
724 if (_verbose) {
725 // VM options
726 Arguments::print_on(st);
727 st->cr();
728 }
730 STEP(215, "(printing warning if internal testing API used)" )
732 if (WhiteBox::used()) {
733 st->print_cr("Unsupported internal testing APIs have been used.");
734 st->cr();
735 }
737 STEP(220, "(printing environment variables)" )
739 if (_verbose) {
740 os::print_environment_variables(st, env_list, buf, sizeof(buf));
741 st->cr();
742 }
744 STEP(225, "(printing signal handlers)" )
746 if (_verbose) {
747 os::print_signal_handlers(st, buf, sizeof(buf));
748 st->cr();
749 }
751 STEP(230, "" )
753 if (_verbose) {
754 st->cr();
755 st->print_cr("--------------- S Y S T E M ---------------");
756 st->cr();
757 }
759 STEP(240, "(printing OS information)" )
761 if (_verbose) {
762 os::print_os_info(st);
763 st->cr();
764 }
766 STEP(250, "(printing CPU info)" )
767 if (_verbose) {
768 os::print_cpu_info(st);
769 st->cr();
770 }
772 STEP(260, "(printing memory info)" )
774 if (_verbose) {
775 os::print_memory_info(st);
776 st->cr();
777 }
779 STEP(270, "(printing internal vm info)" )
781 if (_verbose) {
782 st->print_cr("vm_info: %s", Abstract_VM_Version::internal_vm_info_string());
783 st->cr();
784 }
786 STEP(280, "(printing date and time)" )
788 if (_verbose) {
789 os::print_date_and_time(st);
790 st->cr();
791 }
793 END
795 # undef BEGIN
796 # undef STEP
797 # undef END
798 }
800 VMError* volatile VMError::first_error = NULL;
801 volatile jlong VMError::first_error_tid = -1;
803 void VMError::report_and_die() {
804 // Don't allocate large buffer on stack
805 static char buffer[O_BUFLEN];
807 // An error could happen before tty is initialized or after it has been
808 // destroyed. Here we use a very simple unbuffered fdStream for printing.
809 // Only out.print_raw() and out.print_raw_cr() should be used, as other
810 // printing methods need to allocate large buffer on stack. To format a
811 // string, use jio_snprintf() with a static buffer or use staticBufferStream.
812 static fdStream out(defaultStream::output_fd());
814 // How many errors occurred in error handler when reporting first_error.
815 static int recursive_error_count;
817 // We will first print a brief message to standard out (verbose = false),
818 // then save detailed information in log file (verbose = true).
819 static bool out_done = false; // done printing to standard out
820 static bool log_done = false; // done saving error log
821 static bool transmit_report_done = false; // done error reporting
822 static fdStream log; // error log
824 // disble NMT to avoid further exception
825 MemTracker::shutdown(MemTracker::NMT_error_reporting);
827 if (SuppressFatalErrorMessage) {
828 os::abort();
829 }
830 jlong mytid = os::current_thread_id();
831 if (first_error == NULL &&
832 Atomic::cmpxchg_ptr(this, &first_error, NULL) == NULL) {
834 // first time
835 first_error_tid = mytid;
836 set_error_reported();
838 if (ShowMessageBoxOnError || PauseAtExit) {
839 show_message_box(buffer, sizeof(buffer));
841 // User has asked JVM to abort. Reset ShowMessageBoxOnError so the
842 // WatcherThread can kill JVM if the error handler hangs.
843 ShowMessageBoxOnError = false;
844 }
846 // Write a minidump on Windows, check core dump limits on Linux/Solaris
847 os::check_or_create_dump(_siginfo, _context, buffer, sizeof(buffer));
849 // reset signal handlers or exception filter; make sure recursive crashes
850 // are handled properly.
851 reset_signal_handlers();
853 } else {
854 // If UseOsErrorReporting we call this for each level of the call stack
855 // while searching for the exception handler. Only the first level needs
856 // to be reported.
857 if (UseOSErrorReporting && log_done) return;
859 // This is not the first error, see if it happened in a different thread
860 // or in the same thread during error reporting.
861 if (first_error_tid != mytid) {
862 jio_snprintf(buffer, sizeof(buffer),
863 "[thread " INT64_FORMAT " also had an error]",
864 mytid);
865 out.print_raw_cr(buffer);
867 // error reporting is not MT-safe, block current thread
868 os::infinite_sleep();
870 } else {
871 if (recursive_error_count++ > 30) {
872 out.print_raw_cr("[Too many errors, abort]");
873 os::die();
874 }
876 jio_snprintf(buffer, sizeof(buffer),
877 "[error occurred during error reporting %s, id 0x%x]",
878 first_error ? first_error->_current_step_info : "",
879 _id);
880 if (log.is_open()) {
881 log.cr();
882 log.print_raw_cr(buffer);
883 log.cr();
884 } else {
885 out.cr();
886 out.print_raw_cr(buffer);
887 out.cr();
888 }
889 }
890 }
892 // print to screen
893 if (!out_done) {
894 first_error->_verbose = false;
896 staticBufferStream sbs(buffer, sizeof(buffer), &out);
897 first_error->report(&sbs);
899 out_done = true;
901 first_error->_current_step = 0; // reset current_step
902 first_error->_current_step_info = ""; // reset current_step string
903 }
905 // print to error log file
906 if (!log_done) {
907 first_error->_verbose = true;
909 // see if log file is already open
910 if (!log.is_open()) {
911 // open log file
912 int fd = -1;
914 if (ErrorFile != NULL) {
915 bool copy_ok =
916 Arguments::copy_expand_pid(ErrorFile, strlen(ErrorFile), buffer, sizeof(buffer));
917 if (copy_ok) {
918 fd = open(buffer, O_RDWR | O_CREAT | O_TRUNC, 0666);
919 }
920 }
922 if (fd == -1) {
923 const char *cwd = os::get_current_directory(buffer, sizeof(buffer));
924 size_t len = strlen(cwd);
925 // either user didn't specify, or the user's location failed,
926 // so use the default name in the current directory
927 jio_snprintf(&buffer[len], sizeof(buffer)-len, "%shs_err_pid%u.log",
928 os::file_separator(), os::current_process_id());
929 fd = open(buffer, O_RDWR | O_CREAT | O_TRUNC, 0666);
930 }
932 if (fd == -1) {
933 const char * tmpdir = os::get_temp_directory();
934 // try temp directory if it exists.
935 if (tmpdir != NULL && tmpdir[0] != '\0') {
936 jio_snprintf(buffer, sizeof(buffer), "%s%shs_err_pid%u.log",
937 tmpdir, os::file_separator(), os::current_process_id());
938 fd = open(buffer, O_RDWR | O_CREAT | O_TRUNC, 0666);
939 }
940 }
942 if (fd != -1) {
943 out.print_raw("# An error report file with more information is saved as:\n# ");
944 out.print_raw_cr(buffer);
945 os::set_error_file(buffer);
947 log.set_fd(fd);
948 } else {
949 out.print_raw_cr("# Can not save log file, dump to screen..");
950 log.set_fd(defaultStream::output_fd());
951 /* Error reporting currently needs dumpfile.
952 * Maybe implement direct streaming in the future.*/
953 transmit_report_done = true;
954 }
955 }
957 staticBufferStream sbs(buffer, O_BUFLEN, &log);
958 first_error->report(&sbs);
959 first_error->_current_step = 0; // reset current_step
960 first_error->_current_step_info = ""; // reset current_step string
962 // Run error reporting to determine whether or not to report the crash.
963 if (!transmit_report_done && should_report_bug(first_error->_id)) {
964 transmit_report_done = true;
965 FILE* hs_err = ::fdopen(log.fd(), "r");
966 if (NULL != hs_err) {
967 ErrorReporter er;
968 er.call(hs_err, buffer, O_BUFLEN);
969 }
970 }
972 if (log.fd() != defaultStream::output_fd()) {
973 close(log.fd());
974 }
976 log.set_fd(-1);
977 log_done = true;
978 }
981 static bool skip_OnError = false;
982 if (!skip_OnError && OnError && OnError[0]) {
983 skip_OnError = true;
985 out.print_raw_cr("#");
986 out.print_raw ("# -XX:OnError=\"");
987 out.print_raw (OnError);
988 out.print_raw_cr("\"");
990 char* cmd;
991 const char* ptr = OnError;
992 while ((cmd = next_OnError_command(buffer, sizeof(buffer), &ptr)) != NULL){
993 out.print_raw ("# Executing ");
994 #if defined(LINUX) || defined(_ALLBSD_SOURCE)
995 out.print_raw ("/bin/sh -c ");
996 #elif defined(SOLARIS)
997 out.print_raw ("/usr/bin/sh -c ");
998 #endif
999 out.print_raw ("\"");
1000 out.print_raw (cmd);
1001 out.print_raw_cr("\" ...");
1003 os::fork_and_exec(cmd);
1004 }
1006 // done with OnError
1007 OnError = NULL;
1008 }
1010 static bool skip_bug_url = !should_report_bug(first_error->_id);
1011 if (!skip_bug_url) {
1012 skip_bug_url = true;
1014 out.print_raw_cr("#");
1015 print_bug_submit_message(&out, _thread);
1016 }
1018 if (!UseOSErrorReporting) {
1019 // os::abort() will call abort hooks, try it first.
1020 static bool skip_os_abort = false;
1021 if (!skip_os_abort) {
1022 skip_os_abort = true;
1023 bool dump_core = should_report_bug(first_error->_id);
1024 os::abort(dump_core);
1025 }
1027 // if os::abort() doesn't abort, try os::die();
1028 os::die();
1029 }
1030 }
1032 /*
1033 * OnOutOfMemoryError scripts/commands executed while VM is a safepoint - this
1034 * ensures utilities such as jmap can observe the process is a consistent state.
1035 */
1036 class VM_ReportJavaOutOfMemory : public VM_Operation {
1037 private:
1038 VMError *_err;
1039 public:
1040 VM_ReportJavaOutOfMemory(VMError *err) { _err = err; }
1041 VMOp_Type type() const { return VMOp_ReportJavaOutOfMemory; }
1042 void doit();
1043 };
1045 void VM_ReportJavaOutOfMemory::doit() {
1046 // Don't allocate large buffer on stack
1047 static char buffer[O_BUFLEN];
1049 tty->print_cr("#");
1050 tty->print_cr("# java.lang.OutOfMemoryError: %s", _err->message());
1051 tty->print_cr("# -XX:OnOutOfMemoryError=\"%s\"", OnOutOfMemoryError);
1053 // make heap parsability
1054 Universe::heap()->ensure_parsability(false); // no need to retire TLABs
1056 char* cmd;
1057 const char* ptr = OnOutOfMemoryError;
1058 while ((cmd = next_OnError_command(buffer, sizeof(buffer), &ptr)) != NULL){
1059 tty->print("# Executing ");
1060 #if defined(LINUX)
1061 tty->print ("/bin/sh -c ");
1062 #elif defined(SOLARIS)
1063 tty->print ("/usr/bin/sh -c ");
1064 #endif
1065 tty->print_cr("\"%s\"...", cmd);
1067 os::fork_and_exec(cmd);
1068 }
1069 }
1071 void VMError::report_java_out_of_memory() {
1072 if (OnOutOfMemoryError && OnOutOfMemoryError[0]) {
1073 MutexLocker ml(Heap_lock);
1074 VM_ReportJavaOutOfMemory op(this);
1075 VMThread::execute(&op);
1076 }
1077 }
