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src/share/vm/utilities/vmError.cpp@aa3d708d67c4
src/share/vm/utilities/vmError.cpp
Wed, 01 Feb 2012 07:59:01 -0800
- author
- never
- date
- Wed, 01 Feb 2012 07:59:01 -0800
- changeset 3499
- aa3d708d67c4
- parent 3430
- d7e3846464d0
- child 3619
- 2d503de963b3
- permissions
- -rw-r--r--
7141200: log some interesting information in ring buffers for crashes
Reviewed-by: kvn, jrose, kevinw, brutisso, twisti, jmasa
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 "runtime/arguments.hpp"
29 #include "runtime/frame.inline.hpp"
30 #include "runtime/init.hpp"
31 #include "runtime/os.hpp"
32 #include "runtime/thread.hpp"
33 #include "runtime/vmThread.hpp"
34 #include "runtime/vm_operations.hpp"
35 #include "utilities/debug.hpp"
36 #include "utilities/decoder.hpp"
37 #include "utilities/defaultStream.hpp"
38 #include "utilities/errorReporter.hpp"
39 #include "utilities/events.hpp"
40 #include "utilities/top.hpp"
41 #include "utilities/vmError.hpp"
43 // List of environment variables that should be reported in error log file.
44 const char *env_list[] = {
45 // All platforms
46 "JAVA_HOME", "JRE_HOME", "JAVA_TOOL_OPTIONS", "_JAVA_OPTIONS", "CLASSPATH",
47 "JAVA_COMPILER", "PATH", "USERNAME",
49 // Env variables that are defined on Solaris/Linux/BSD
50 "LD_LIBRARY_PATH", "LD_PRELOAD", "SHELL", "DISPLAY",
51 "HOSTTYPE", "OSTYPE", "ARCH", "MACHTYPE",
53 // defined on Linux
54 "LD_ASSUME_KERNEL", "_JAVA_SR_SIGNUM",
56 // defined on Darwin
57 "DYLD_LIBRARY_PATH", "DYLD_FALLBACK_LIBRARY_PATH",
58 "DYLD_FRAMEWORK_PATH", "DYLD_FALLBACK_FRAMEWORK_PATH",
59 "DYLD_INSERT_LIBRARIES",
61 // defined on Windows
62 "OS", "PROCESSOR_IDENTIFIER", "_ALT_JAVA_HOME_DIR",
64 (const char *)0
65 };
67 // Fatal error handler for internal errors and crashes.
68 //
69 // The default behavior of fatal error handler is to print a brief message
70 // to standard out (defaultStream::output_fd()), then save detailed information
71 // into an error report file (hs_err_pid<pid>.log) and abort VM. If multiple
72 // threads are having troubles at the same time, only one error is reported.
73 // The thread that is reporting error will abort VM when it is done, all other
74 // threads are blocked forever inside report_and_die().
76 // Constructor for crashes
77 VMError::VMError(Thread* thread, unsigned int sig, address pc, void* siginfo, void* context) {
78 _thread = thread;
79 _id = sig;
80 _pc = pc;
81 _siginfo = siginfo;
82 _context = context;
84 _verbose = false;
85 _current_step = 0;
86 _current_step_info = NULL;
88 _message = NULL;
89 _detail_msg = NULL;
90 _filename = NULL;
91 _lineno = 0;
93 _size = 0;
94 }
96 // Constructor for internal errors
97 VMError::VMError(Thread* thread, const char* filename, int lineno,
98 const char* message, const char * detail_msg)
99 {
100 _thread = thread;
101 _id = internal_error; // Value that's not an OS exception/signal
102 _filename = filename;
103 _lineno = lineno;
104 _message = message;
105 _detail_msg = detail_msg;
107 _verbose = false;
108 _current_step = 0;
109 _current_step_info = NULL;
111 _pc = NULL;
112 _siginfo = NULL;
113 _context = NULL;
115 _size = 0;
116 }
118 // Constructor for OOM errors
119 VMError::VMError(Thread* thread, const char* filename, int lineno, size_t size,
120 const char* message) {
121 _thread = thread;
122 _id = oom_error; // Value that's not an OS exception/signal
123 _filename = filename;
124 _lineno = lineno;
125 _message = message;
126 _detail_msg = NULL;
128 _verbose = false;
129 _current_step = 0;
130 _current_step_info = NULL;
132 _pc = NULL;
133 _siginfo = NULL;
134 _context = NULL;
136 _size = size;
137 }
140 // Constructor for non-fatal errors
141 VMError::VMError(const char* message) {
142 _thread = NULL;
143 _id = internal_error; // Value that's not an OS exception/signal
144 _filename = NULL;
145 _lineno = 0;
146 _message = message;
147 _detail_msg = NULL;
149 _verbose = false;
150 _current_step = 0;
151 _current_step_info = NULL;
153 _pc = NULL;
154 _siginfo = NULL;
155 _context = NULL;
157 _size = 0;
158 }
160 // -XX:OnError=<string>, where <string> can be a list of commands, separated
161 // by ';'. "%p" is replaced by current process id (pid); "%%" is replaced by
162 // a single "%". Some examples:
163 //
164 // -XX:OnError="pmap %p" // show memory map
165 // -XX:OnError="gcore %p; dbx - %p" // dump core and launch debugger
166 // -XX:OnError="cat hs_err_pid%p.log | mail my_email@sun.com"
167 // -XX:OnError="kill -9 %p" // ?#!@#
169 // A simple parser for -XX:OnError, usage:
170 // ptr = OnError;
171 // while ((cmd = next_OnError_command(buffer, sizeof(buffer), &ptr) != NULL)
172 // ... ...
173 static char* next_OnError_command(char* buf, int buflen, const char** ptr) {
174 if (ptr == NULL || *ptr == NULL) return NULL;
176 const char* cmd = *ptr;
178 // skip leading blanks or ';'
179 while (*cmd == ' ' || *cmd == ';') cmd++;
181 if (*cmd == '\0') return NULL;
183 const char * cmdend = cmd;
184 while (*cmdend != '\0' && *cmdend != ';') cmdend++;
186 Arguments::copy_expand_pid(cmd, cmdend - cmd, buf, buflen);
188 *ptr = (*cmdend == '\0' ? cmdend : cmdend + 1);
189 return buf;
190 }
193 static void print_bug_submit_message(outputStream *out, Thread *thread) {
194 if (out == NULL) return;
195 out->print_raw_cr("# If you would like to submit a bug report, please visit:");
196 out->print_raw ("# ");
197 out->print_raw_cr(Arguments::java_vendor_url_bug());
198 // If the crash is in native code, encourage user to submit a bug to the
199 // provider of that code.
200 if (thread && thread->is_Java_thread() &&
201 !thread->is_hidden_from_external_view()) {
202 JavaThread* jt = (JavaThread*)thread;
203 if (jt->thread_state() == _thread_in_native) {
204 out->print_cr("# The crash happened outside the Java Virtual Machine in native code.\n# See problematic frame for where to report the bug.");
205 }
206 }
207 out->print_raw_cr("#");
208 }
210 bool VMError::coredump_status;
211 char VMError::coredump_message[O_BUFLEN];
213 void VMError::report_coredump_status(const char* message, bool status) {
214 coredump_status = status;
215 strncpy(coredump_message, message, sizeof(coredump_message));
216 coredump_message[sizeof(coredump_message)-1] = 0;
217 }
220 // Return a string to describe the error
221 char* VMError::error_string(char* buf, int buflen) {
222 char signame_buf[64];
223 const char *signame = os::exception_name(_id, signame_buf, sizeof(signame_buf));
225 if (signame) {
226 jio_snprintf(buf, buflen,
227 "%s (0x%x) at pc=" PTR_FORMAT ", pid=%d, tid=" UINTX_FORMAT,
228 signame, _id, _pc,
229 os::current_process_id(), os::current_thread_id());
230 } else if (_filename != NULL && _lineno > 0) {
231 // skip directory names
232 char separator = os::file_separator()[0];
233 const char *p = strrchr(_filename, separator);
234 int n = jio_snprintf(buf, buflen,
235 "Internal Error at %s:%d, pid=%d, tid=" UINTX_FORMAT,
236 p ? p + 1 : _filename, _lineno,
237 os::current_process_id(), os::current_thread_id());
238 if (n >= 0 && n < buflen && _message) {
239 if (_detail_msg) {
240 jio_snprintf(buf + n, buflen - n, "%s%s: %s",
241 os::line_separator(), _message, _detail_msg);
242 } else {
243 jio_snprintf(buf + n, buflen - n, "%sError: %s",
244 os::line_separator(), _message);
245 }
246 }
247 } else {
248 jio_snprintf(buf, buflen,
249 "Internal Error (0x%x), pid=%d, tid=" UINTX_FORMAT,
250 _id, os::current_process_id(), os::current_thread_id());
251 }
253 return buf;
254 }
256 void VMError::print_stack_trace(outputStream* st, JavaThread* jt,
257 char* buf, int buflen, bool verbose) {
258 #ifdef ZERO
259 if (jt->zero_stack()->sp() && jt->top_zero_frame()) {
260 // StackFrameStream uses the frame anchor, which may not have
261 // been set up. This can be done at any time in Zero, however,
262 // so if it hasn't been set up then we just set it up now and
263 // clear it again when we're done.
264 bool has_last_Java_frame = jt->has_last_Java_frame();
265 if (!has_last_Java_frame)
266 jt->set_last_Java_frame();
267 st->print("Java frames:");
269 // If the top frame is a Shark frame and the frame anchor isn't
270 // set up then it's possible that the information in the frame
271 // is garbage: it could be from a previous decache, or it could
272 // simply have never been written. So we print a warning...
273 StackFrameStream sfs(jt);
274 if (!has_last_Java_frame && !sfs.is_done()) {
275 if (sfs.current()->zeroframe()->is_shark_frame()) {
276 st->print(" (TOP FRAME MAY BE JUNK)");
277 }
278 }
279 st->cr();
281 // Print the frames
282 for(int i = 0; !sfs.is_done(); sfs.next(), i++) {
283 sfs.current()->zero_print_on_error(i, st, buf, buflen);
284 st->cr();
285 }
287 // Reset the frame anchor if necessary
288 if (!has_last_Java_frame)
289 jt->reset_last_Java_frame();
290 }
291 #else
292 if (jt->has_last_Java_frame()) {
293 st->print_cr("Java frames: (J=compiled Java code, j=interpreted, Vv=VM code)");
294 for(StackFrameStream sfs(jt); !sfs.is_done(); sfs.next()) {
295 sfs.current()->print_on_error(st, buf, buflen, verbose);
296 st->cr();
297 }
298 }
299 #endif // ZERO
300 }
302 // This is the main function to report a fatal error. Only one thread can
303 // call this function, so we don't need to worry about MT-safety. But it's
304 // possible that the error handler itself may crash or die on an internal
305 // error, for example, when the stack/heap is badly damaged. We must be
306 // able to handle recursive errors that happen inside error handler.
307 //
308 // Error reporting is done in several steps. If a crash or internal error
309 // occurred when reporting an error, the nested signal/exception handler
310 // can skip steps that are already (or partially) done. Error reporting will
311 // continue from the next step. This allows us to retrieve and print
312 // information that may be unsafe to get after a fatal error. If it happens,
313 // you may find nested report_and_die() frames when you look at the stack
314 // in a debugger.
315 //
316 // In general, a hang in error handler is much worse than a crash or internal
317 // error, as it's harder to recover from a hang. Deadlock can happen if we
318 // try to grab a lock that is already owned by current thread, or if the
319 // owner is blocked forever (e.g. in os::infinite_sleep()). If possible, the
320 // error handler and all the functions it called should avoid grabbing any
321 // lock. An important thing to notice is that memory allocation needs a lock.
322 //
323 // We should avoid using large stack allocated buffers. Many errors happen
324 // when stack space is already low. Making things even worse is that there
325 // could be nested report_and_die() calls on stack (see above). Only one
326 // thread can report error, so large buffers are statically allocated in data
327 // segment.
329 void VMError::report(outputStream* st) {
330 # define BEGIN if (_current_step == 0) { _current_step = 1;
331 # define STEP(n, s) } if (_current_step < n) { _current_step = n; _current_step_info = s;
332 # define END }
334 // don't allocate large buffer on stack
335 static char buf[O_BUFLEN];
337 BEGIN
339 STEP(10, "(printing fatal error message)")
341 st->print_cr("#");
342 if (should_report_bug(_id)) {
343 st->print_cr("# A fatal error has been detected by the Java Runtime Environment:");
344 } else {
345 st->print_cr("# There is insufficient memory for the Java "
346 "Runtime Environment to continue.");
347 }
349 STEP(15, "(printing type of error)")
351 switch(_id) {
352 case oom_error:
353 if (_size) {
354 st->print("# Native memory allocation (malloc) failed to allocate ");
355 jio_snprintf(buf, sizeof(buf), SIZE_FORMAT, _size);
356 st->print(buf);
357 st->print(" bytes");
358 if (_message != NULL) {
359 st->print(" for ");
360 st->print(_message);
361 }
362 st->cr();
363 } else {
364 if (_message != NULL)
365 st->print("# ");
366 st->print_cr(_message);
367 }
368 // In error file give some solutions
369 if (_verbose) {
370 st->print_cr("# Possible reasons:");
371 st->print_cr("# The system is out of physical RAM or swap space");
372 st->print_cr("# In 32 bit mode, the process size limit was hit");
373 st->print_cr("# Possible solutions:");
374 st->print_cr("# Reduce memory load on the system");
375 st->print_cr("# Increase physical memory or swap space");
376 st->print_cr("# Check if swap backing store is full");
377 st->print_cr("# Use 64 bit Java on a 64 bit OS");
378 st->print_cr("# Decrease Java heap size (-Xmx/-Xms)");
379 st->print_cr("# Decrease number of Java threads");
380 st->print_cr("# Decrease Java thread stack sizes (-Xss)");
381 st->print_cr("# Set larger code cache with -XX:ReservedCodeCacheSize=");
382 st->print_cr("# This output file may be truncated or incomplete.");
383 } else {
384 return; // that's enough for the screen
385 }
386 break;
387 case internal_error:
388 default:
389 break;
390 }
392 STEP(20, "(printing exception/signal name)")
394 st->print_cr("#");
395 st->print("# ");
396 // Is it an OS exception/signal?
397 if (os::exception_name(_id, buf, sizeof(buf))) {
398 st->print("%s", buf);
399 st->print(" (0x%x)", _id); // signal number
400 st->print(" at pc=" PTR_FORMAT, _pc);
401 } else {
402 if (should_report_bug(_id)) {
403 st->print("Internal Error");
404 } else {
405 st->print("Out of Memory Error");
406 }
407 if (_filename != NULL && _lineno > 0) {
408 #ifdef PRODUCT
409 // In product mode chop off pathname?
410 char separator = os::file_separator()[0];
411 const char *p = strrchr(_filename, separator);
412 const char *file = p ? p+1 : _filename;
413 #else
414 const char *file = _filename;
415 #endif
416 size_t len = strlen(file);
417 size_t buflen = sizeof(buf);
419 strncpy(buf, file, buflen);
420 if (len + 10 < buflen) {
421 sprintf(buf + len, ":%d", _lineno);
422 }
423 st->print(" (%s)", buf);
424 } else {
425 st->print(" (0x%x)", _id);
426 }
427 }
429 STEP(30, "(printing current thread and pid)")
431 // process id, thread id
432 st->print(", pid=%d", os::current_process_id());
433 st->print(", tid=" UINTX_FORMAT, os::current_thread_id());
434 st->cr();
436 STEP(40, "(printing error message)")
438 if (should_report_bug(_id)) { // already printed the message.
439 // error message
440 if (_detail_msg) {
441 st->print_cr("# %s: %s", _message ? _message : "Error", _detail_msg);
442 } else if (_message) {
443 st->print_cr("# Error: %s", _message);
444 }
445 }
447 STEP(50, "(printing Java version string)")
449 // VM version
450 st->print_cr("#");
451 JDK_Version::current().to_string(buf, sizeof(buf));
452 st->print_cr("# JRE version: %s", buf);
453 st->print_cr("# Java VM: %s (%s %s %s %s)",
454 Abstract_VM_Version::vm_name(),
455 Abstract_VM_Version::vm_release(),
456 Abstract_VM_Version::vm_info_string(),
457 Abstract_VM_Version::vm_platform_string(),
458 UseCompressedOops ? "compressed oops" : ""
459 );
461 STEP(60, "(printing problematic frame)")
463 // Print current frame if we have a context (i.e. it's a crash)
464 if (_context) {
465 st->print_cr("# Problematic frame:");
466 st->print("# ");
467 frame fr = os::fetch_frame_from_context(_context);
468 fr.print_on_error(st, buf, sizeof(buf));
469 st->cr();
470 st->print_cr("#");
471 }
472 STEP(63, "(printing core file information)")
473 st->print("# ");
474 if (coredump_status) {
475 st->print("Core dump written. Default location: %s", coredump_message);
476 } else {
477 st->print("Failed to write core dump. %s", coredump_message);
478 }
479 st->print_cr("");
480 st->print_cr("#");
482 STEP(65, "(printing bug submit message)")
484 if (should_report_bug(_id) && _verbose) {
485 print_bug_submit_message(st, _thread);
486 }
488 STEP(70, "(printing thread)" )
490 if (_verbose) {
491 st->cr();
492 st->print_cr("--------------- T H R E A D ---------------");
493 st->cr();
494 }
496 STEP(80, "(printing current thread)" )
498 // current thread
499 if (_verbose) {
500 if (_thread) {
501 st->print("Current thread (" PTR_FORMAT "): ", _thread);
502 _thread->print_on_error(st, buf, sizeof(buf));
503 st->cr();
504 } else {
505 st->print_cr("Current thread is native thread");
506 }
507 st->cr();
508 }
510 STEP(90, "(printing siginfo)" )
512 // signal no, signal code, address that caused the fault
513 if (_verbose && _siginfo) {
514 os::print_siginfo(st, _siginfo);
515 st->cr();
516 }
518 STEP(100, "(printing registers, top of stack, instructions near pc)")
520 // registers, top of stack, instructions near pc
521 if (_verbose && _context) {
522 os::print_context(st, _context);
523 st->cr();
524 }
526 STEP(105, "(printing register info)")
528 // decode register contents if possible
529 if (_verbose && _context && Universe::is_fully_initialized()) {
530 os::print_register_info(st, _context);
531 st->cr();
532 }
534 STEP(110, "(printing stack bounds)" )
536 if (_verbose) {
537 st->print("Stack: ");
539 address stack_top;
540 size_t stack_size;
542 if (_thread) {
543 stack_top = _thread->stack_base();
544 stack_size = _thread->stack_size();
545 } else {
546 stack_top = os::current_stack_base();
547 stack_size = os::current_stack_size();
548 }
550 address stack_bottom = stack_top - stack_size;
551 st->print("[" PTR_FORMAT "," PTR_FORMAT "]", stack_bottom, stack_top);
553 frame fr = _context ? os::fetch_frame_from_context(_context)
554 : os::current_frame();
556 if (fr.sp()) {
557 st->print(", sp=" PTR_FORMAT, fr.sp());
558 size_t free_stack_size = pointer_delta(fr.sp(), stack_bottom, 1024);
559 st->print(", free space=" SIZE_FORMAT "k", free_stack_size);
560 }
562 st->cr();
563 }
565 STEP(120, "(printing native stack)" )
567 if (_verbose) {
568 frame fr = _context ? os::fetch_frame_from_context(_context)
569 : os::current_frame();
571 // see if it's a valid frame
572 if (fr.pc()) {
573 st->print_cr("Native frames: (J=compiled Java code, j=interpreted, Vv=VM code, C=native code)");
576 int count = 0;
577 while (count++ < StackPrintLimit) {
578 fr.print_on_error(st, buf, sizeof(buf));
579 st->cr();
580 if (os::is_first_C_frame(&fr)) break;
581 fr = os::get_sender_for_C_frame(&fr);
582 }
584 if (count > StackPrintLimit) {
585 st->print_cr("...<more frames>...");
586 }
588 st->cr();
589 }
590 }
592 STEP(130, "(printing Java stack)" )
594 if (_verbose && _thread && _thread->is_Java_thread()) {
595 print_stack_trace(st, (JavaThread*)_thread, buf, sizeof(buf));
596 }
598 STEP(135, "(printing target Java thread stack)" )
600 // printing Java thread stack trace if it is involved in GC crash
601 if (_verbose && _thread && (_thread->is_Named_thread())) {
602 JavaThread* jt = ((NamedThread *)_thread)->processed_thread();
603 if (jt != NULL) {
604 st->print_cr("JavaThread " PTR_FORMAT " (nid = " UINTX_FORMAT ") was being processed", jt, jt->osthread()->thread_id());
605 print_stack_trace(st, jt, buf, sizeof(buf), true);
606 }
607 }
609 STEP(140, "(printing VM operation)" )
611 if (_verbose && _thread && _thread->is_VM_thread()) {
612 VMThread* t = (VMThread*)_thread;
613 VM_Operation* op = t->vm_operation();
614 if (op) {
615 op->print_on_error(st);
616 st->cr();
617 st->cr();
618 }
619 }
621 STEP(150, "(printing current compile task)" )
623 if (_verbose && _thread && _thread->is_Compiler_thread()) {
624 CompilerThread* t = (CompilerThread*)_thread;
625 if (t->task()) {
626 st->cr();
627 st->print_cr("Current CompileTask:");
628 t->task()->print_line_on_error(st, buf, sizeof(buf));
629 st->cr();
630 }
631 }
633 STEP(160, "(printing process)" )
635 if (_verbose) {
636 st->cr();
637 st->print_cr("--------------- P R O C E S S ---------------");
638 st->cr();
639 }
641 STEP(170, "(printing all threads)" )
643 // all threads
644 if (_verbose && _thread) {
645 Threads::print_on_error(st, _thread, buf, sizeof(buf));
646 st->cr();
647 }
649 STEP(175, "(printing VM state)" )
651 if (_verbose) {
652 // Safepoint state
653 st->print("VM state:");
655 if (SafepointSynchronize::is_synchronizing()) st->print("synchronizing");
656 else if (SafepointSynchronize::is_at_safepoint()) st->print("at safepoint");
657 else st->print("not at safepoint");
659 // Also see if error occurred during initialization or shutdown
660 if (!Universe::is_fully_initialized()) {
661 st->print(" (not fully initialized)");
662 } else if (VM_Exit::vm_exited()) {
663 st->print(" (shutting down)");
664 } else {
665 st->print(" (normal execution)");
666 }
667 st->cr();
668 st->cr();
669 }
671 STEP(180, "(printing owned locks on error)" )
673 // mutexes/monitors that currently have an owner
674 if (_verbose) {
675 print_owned_locks_on_error(st);
676 st->cr();
677 }
679 STEP(190, "(printing heap information)" )
681 if (_verbose && Universe::is_fully_initialized()) {
682 // Print heap information before vm abort. As we'd like as much
683 // information as possible in the report we ask for the
684 // extended (i.e., more detailed) version.
685 Universe::print_on(st, true /* extended */);
686 st->cr();
687 }
689 STEP(195, "(printing code cache information)" )
691 if (_verbose && Universe::is_fully_initialized()) {
692 // print code cache information before vm abort
693 CodeCache::print_bounds(st);
694 st->cr();
695 }
697 STEP(200, "(printing ring buffers)" )
699 if (_verbose) {
700 Events::print_all(st);
701 st->cr();
702 }
704 STEP(205, "(printing dynamic libraries)" )
706 if (_verbose) {
707 // dynamic libraries, or memory map
708 os::print_dll_info(st);
709 st->cr();
710 }
712 STEP(210, "(printing VM options)" )
714 if (_verbose) {
715 // VM options
716 Arguments::print_on(st);
717 st->cr();
718 }
720 STEP(220, "(printing environment variables)" )
722 if (_verbose) {
723 os::print_environment_variables(st, env_list, buf, sizeof(buf));
724 st->cr();
725 }
727 STEP(225, "(printing signal handlers)" )
729 if (_verbose) {
730 os::print_signal_handlers(st, buf, sizeof(buf));
731 st->cr();
732 }
734 STEP(230, "" )
736 if (_verbose) {
737 st->cr();
738 st->print_cr("--------------- S Y S T E M ---------------");
739 st->cr();
740 }
742 STEP(240, "(printing OS information)" )
744 if (_verbose) {
745 os::print_os_info(st);
746 st->cr();
747 }
749 STEP(250, "(printing CPU info)" )
750 if (_verbose) {
751 os::print_cpu_info(st);
752 st->cr();
753 }
755 STEP(260, "(printing memory info)" )
757 if (_verbose) {
758 os::print_memory_info(st);
759 st->cr();
760 }
762 STEP(270, "(printing internal vm info)" )
764 if (_verbose) {
765 st->print_cr("vm_info: %s", Abstract_VM_Version::internal_vm_info_string());
766 st->cr();
767 }
769 STEP(280, "(printing date and time)" )
771 if (_verbose) {
772 os::print_date_and_time(st);
773 st->cr();
774 }
776 END
778 # undef BEGIN
779 # undef STEP
780 # undef END
781 }
783 VMError* volatile VMError::first_error = NULL;
784 volatile jlong VMError::first_error_tid = -1;
786 void VMError::report_and_die() {
787 // Don't allocate large buffer on stack
788 static char buffer[O_BUFLEN];
790 // An error could happen before tty is initialized or after it has been
791 // destroyed. Here we use a very simple unbuffered fdStream for printing.
792 // Only out.print_raw() and out.print_raw_cr() should be used, as other
793 // printing methods need to allocate large buffer on stack. To format a
794 // string, use jio_snprintf() with a static buffer or use staticBufferStream.
795 static fdStream out(defaultStream::output_fd());
797 // How many errors occurred in error handler when reporting first_error.
798 static int recursive_error_count;
800 // We will first print a brief message to standard out (verbose = false),
801 // then save detailed information in log file (verbose = true).
802 static bool out_done = false; // done printing to standard out
803 static bool log_done = false; // done saving error log
804 static bool transmit_report_done = false; // done error reporting
805 static fdStream log; // error log
807 if (SuppressFatalErrorMessage) {
808 os::abort();
809 }
810 jlong mytid = os::current_thread_id();
811 if (first_error == NULL &&
812 Atomic::cmpxchg_ptr(this, &first_error, NULL) == NULL) {
814 // first time
815 first_error_tid = mytid;
816 set_error_reported();
818 if (ShowMessageBoxOnError || PauseAtExit) {
819 show_message_box(buffer, sizeof(buffer));
821 // User has asked JVM to abort. Reset ShowMessageBoxOnError so the
822 // WatcherThread can kill JVM if the error handler hangs.
823 ShowMessageBoxOnError = false;
824 }
826 // Write a minidump on Windows, check core dump limits on Linux/Solaris
827 os::check_or_create_dump(_siginfo, _context, buffer, sizeof(buffer));
829 // reset signal handlers or exception filter; make sure recursive crashes
830 // are handled properly.
831 reset_signal_handlers();
833 } else {
834 // If UseOsErrorReporting we call this for each level of the call stack
835 // while searching for the exception handler. Only the first level needs
836 // to be reported.
837 if (UseOSErrorReporting && log_done) return;
839 // This is not the first error, see if it happened in a different thread
840 // or in the same thread during error reporting.
841 if (first_error_tid != mytid) {
842 jio_snprintf(buffer, sizeof(buffer),
843 "[thread " INT64_FORMAT " also had an error]",
844 mytid);
845 out.print_raw_cr(buffer);
847 // error reporting is not MT-safe, block current thread
848 os::infinite_sleep();
850 } else {
851 if (recursive_error_count++ > 30) {
852 out.print_raw_cr("[Too many errors, abort]");
853 os::die();
854 }
856 jio_snprintf(buffer, sizeof(buffer),
857 "[error occurred during error reporting %s, id 0x%x]",
858 first_error ? first_error->_current_step_info : "",
859 _id);
860 if (log.is_open()) {
861 log.cr();
862 log.print_raw_cr(buffer);
863 log.cr();
864 } else {
865 out.cr();
866 out.print_raw_cr(buffer);
867 out.cr();
868 }
869 }
870 }
872 // print to screen
873 if (!out_done) {
874 first_error->_verbose = false;
876 staticBufferStream sbs(buffer, sizeof(buffer), &out);
877 first_error->report(&sbs);
879 out_done = true;
881 first_error->_current_step = 0; // reset current_step
882 first_error->_current_step_info = ""; // reset current_step string
883 }
885 // print to error log file
886 if (!log_done) {
887 first_error->_verbose = true;
889 // see if log file is already open
890 if (!log.is_open()) {
891 // open log file
892 int fd = -1;
894 if (ErrorFile != NULL) {
895 bool copy_ok =
896 Arguments::copy_expand_pid(ErrorFile, strlen(ErrorFile), buffer, sizeof(buffer));
897 if (copy_ok) {
898 fd = open(buffer, O_RDWR | O_CREAT | O_TRUNC, 0666);
899 }
900 }
902 if (fd == -1) {
903 const char *cwd = os::get_current_directory(buffer, sizeof(buffer));
904 size_t len = strlen(cwd);
905 // either user didn't specify, or the user's location failed,
906 // so use the default name in the current directory
907 jio_snprintf(&buffer[len], sizeof(buffer)-len, "%shs_err_pid%u.log",
908 os::file_separator(), os::current_process_id());
909 fd = open(buffer, O_RDWR | O_CREAT | O_TRUNC, 0666);
910 }
912 if (fd == -1) {
913 const char * tmpdir = os::get_temp_directory();
914 // try temp directory if it exists.
915 if (tmpdir != NULL && tmpdir[0] != '\0') {
916 jio_snprintf(buffer, sizeof(buffer), "%s%shs_err_pid%u.log",
917 tmpdir, os::file_separator(), os::current_process_id());
918 fd = open(buffer, O_RDWR | O_CREAT | O_TRUNC, 0666);
919 }
920 }
922 if (fd != -1) {
923 out.print_raw("# An error report file with more information is saved as:\n# ");
924 out.print_raw_cr(buffer);
925 os::set_error_file(buffer);
927 log.set_fd(fd);
928 } else {
929 out.print_raw_cr("# Can not save log file, dump to screen..");
930 log.set_fd(defaultStream::output_fd());
931 /* Error reporting currently needs dumpfile.
932 * Maybe implement direct streaming in the future.*/
933 transmit_report_done = true;
934 }
935 }
937 staticBufferStream sbs(buffer, O_BUFLEN, &log);
938 first_error->report(&sbs);
939 first_error->_current_step = 0; // reset current_step
940 first_error->_current_step_info = ""; // reset current_step string
942 // Run error reporting to determine whether or not to report the crash.
943 if (!transmit_report_done && should_report_bug(first_error->_id)) {
944 transmit_report_done = true;
945 FILE* hs_err = ::fdopen(log.fd(), "r");
946 if (NULL != hs_err) {
947 ErrorReporter er;
948 er.call(hs_err, buffer, O_BUFLEN);
949 }
950 }
952 if (log.fd() != defaultStream::output_fd()) {
953 close(log.fd());
954 }
956 log.set_fd(-1);
957 log_done = true;
958 }
961 static bool skip_OnError = false;
962 if (!skip_OnError && OnError && OnError[0]) {
963 skip_OnError = true;
965 out.print_raw_cr("#");
966 out.print_raw ("# -XX:OnError=\"");
967 out.print_raw (OnError);
968 out.print_raw_cr("\"");
970 char* cmd;
971 const char* ptr = OnError;
972 while ((cmd = next_OnError_command(buffer, sizeof(buffer), &ptr)) != NULL){
973 out.print_raw ("# Executing ");
974 #if defined(LINUX) || defined(_ALLBSD_SOURCE)
975 out.print_raw ("/bin/sh -c ");
976 #elif defined(SOLARIS)
977 out.print_raw ("/usr/bin/sh -c ");
978 #endif
979 out.print_raw ("\"");
980 out.print_raw (cmd);
981 out.print_raw_cr("\" ...");
983 os::fork_and_exec(cmd);
984 }
986 // done with OnError
987 OnError = NULL;
988 }
990 static bool skip_bug_url = !should_report_bug(first_error->_id);
991 if (!skip_bug_url) {
992 skip_bug_url = true;
994 out.print_raw_cr("#");
995 print_bug_submit_message(&out, _thread);
996 }
998 if (!UseOSErrorReporting) {
999 // os::abort() will call abort hooks, try it first.
1000 static bool skip_os_abort = false;
1001 if (!skip_os_abort) {
1002 skip_os_abort = true;
1003 bool dump_core = should_report_bug(first_error->_id);
1004 os::abort(dump_core);
1005 }
1007 // if os::abort() doesn't abort, try os::die();
1008 os::die();
1009 }
1010 }
1012 /*
1013 * OnOutOfMemoryError scripts/commands executed while VM is a safepoint - this
1014 * ensures utilities such as jmap can observe the process is a consistent state.
1015 */
1016 class VM_ReportJavaOutOfMemory : public VM_Operation {
1017 private:
1018 VMError *_err;
1019 public:
1020 VM_ReportJavaOutOfMemory(VMError *err) { _err = err; }
1021 VMOp_Type type() const { return VMOp_ReportJavaOutOfMemory; }
1022 void doit();
1023 };
1025 void VM_ReportJavaOutOfMemory::doit() {
1026 // Don't allocate large buffer on stack
1027 static char buffer[O_BUFLEN];
1029 tty->print_cr("#");
1030 tty->print_cr("# java.lang.OutOfMemoryError: %s", _err->message());
1031 tty->print_cr("# -XX:OnOutOfMemoryError=\"%s\"", OnOutOfMemoryError);
1033 // make heap parsability
1034 Universe::heap()->ensure_parsability(false); // no need to retire TLABs
1036 char* cmd;
1037 const char* ptr = OnOutOfMemoryError;
1038 while ((cmd = next_OnError_command(buffer, sizeof(buffer), &ptr)) != NULL){
1039 tty->print("# Executing ");
1040 #if defined(LINUX)
1041 tty->print ("/bin/sh -c ");
1042 #elif defined(SOLARIS)
1043 tty->print ("/usr/bin/sh -c ");
1044 #endif
1045 tty->print_cr("\"%s\"...", cmd);
1047 os::fork_and_exec(cmd);
1048 }
1049 }
1051 void VMError::report_java_out_of_memory() {
1052 if (OnOutOfMemoryError && OnOutOfMemoryError[0]) {
1053 MutexLocker ml(Heap_lock);
1054 VM_ReportJavaOutOfMemory op(this);
1055 VMThread::execute(&op);
1056 }
1057 }
