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src/share/vm/utilities/vmError.cpp@53074c2c4600
src/share/vm/utilities/vmError.cpp
Tue, 08 Nov 2011 00:41:28 -0500
- author
- tonyp
- date
- Tue, 08 Nov 2011 00:41:28 -0500
- changeset 3269
- 53074c2c4600
- parent 3156
- f08d439fab8c
- child 3430
- d7e3846464d0
- permissions
- -rw-r--r--
7099849: G1: include heap region information in hs_err files
Reviewed-by: johnc, brutisso, poonam
1 /*
2 * Copyright (c) 2003, 2011, 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/top.hpp"
40 #include "utilities/vmError.hpp"
42 // List of environment variables that should be reported in error log file.
43 const char *env_list[] = {
44 // All platforms
45 "JAVA_HOME", "JRE_HOME", "JAVA_TOOL_OPTIONS", "_JAVA_OPTIONS", "CLASSPATH",
46 "JAVA_COMPILER", "PATH", "USERNAME",
48 // Env variables that are defined on Solaris/Linux/BSD
49 "LD_LIBRARY_PATH", "LD_PRELOAD", "SHELL", "DISPLAY",
50 "HOSTTYPE", "OSTYPE", "ARCH", "MACHTYPE",
52 // defined on Linux
53 "LD_ASSUME_KERNEL", "_JAVA_SR_SIGNUM",
55 // defined on Darwin
56 "DYLD_LIBRARY_PATH", "DYLD_FALLBACK_LIBRARY_PATH",
57 "DYLD_FRAMEWORK_PATH", "DYLD_FALLBACK_FRAMEWORK_PATH",
58 "DYLD_INSERT_LIBRARIES",
60 // defined on Windows
61 "OS", "PROCESSOR_IDENTIFIER", "_ALT_JAVA_HOME_DIR",
63 (const char *)0
64 };
66 // Fatal error handler for internal errors and crashes.
67 //
68 // The default behavior of fatal error handler is to print a brief message
69 // to standard out (defaultStream::output_fd()), then save detailed information
70 // into an error report file (hs_err_pid<pid>.log) and abort VM. If multiple
71 // threads are having troubles at the same time, only one error is reported.
72 // The thread that is reporting error will abort VM when it is done, all other
73 // threads are blocked forever inside report_and_die().
75 // Constructor for crashes
76 VMError::VMError(Thread* thread, unsigned int sig, address pc, void* siginfo, void* context) {
77 _thread = thread;
78 _id = sig;
79 _pc = pc;
80 _siginfo = siginfo;
81 _context = context;
83 _verbose = false;
84 _current_step = 0;
85 _current_step_info = NULL;
87 _message = NULL;
88 _detail_msg = NULL;
89 _filename = NULL;
90 _lineno = 0;
92 _size = 0;
93 }
95 // Constructor for internal errors
96 VMError::VMError(Thread* thread, const char* filename, int lineno,
97 const char* message, const char * detail_msg)
98 {
99 _thread = thread;
100 _id = internal_error; // Value that's not an OS exception/signal
101 _filename = filename;
102 _lineno = lineno;
103 _message = message;
104 _detail_msg = detail_msg;
106 _verbose = false;
107 _current_step = 0;
108 _current_step_info = NULL;
110 _pc = NULL;
111 _siginfo = NULL;
112 _context = NULL;
114 _size = 0;
115 }
117 // Constructor for OOM errors
118 VMError::VMError(Thread* thread, const char* filename, int lineno, size_t size,
119 const char* message) {
120 _thread = thread;
121 _id = oom_error; // Value that's not an OS exception/signal
122 _filename = filename;
123 _lineno = lineno;
124 _message = message;
125 _detail_msg = NULL;
127 _verbose = false;
128 _current_step = 0;
129 _current_step_info = NULL;
131 _pc = NULL;
132 _siginfo = NULL;
133 _context = NULL;
135 _size = size;
136 }
139 // Constructor for non-fatal errors
140 VMError::VMError(const char* message) {
141 _thread = NULL;
142 _id = internal_error; // Value that's not an OS exception/signal
143 _filename = NULL;
144 _lineno = 0;
145 _message = message;
146 _detail_msg = NULL;
148 _verbose = false;
149 _current_step = 0;
150 _current_step_info = NULL;
152 _pc = NULL;
153 _siginfo = NULL;
154 _context = NULL;
156 _size = 0;
157 }
159 // -XX:OnError=<string>, where <string> can be a list of commands, separated
160 // by ';'. "%p" is replaced by current process id (pid); "%%" is replaced by
161 // a single "%". Some examples:
162 //
163 // -XX:OnError="pmap %p" // show memory map
164 // -XX:OnError="gcore %p; dbx - %p" // dump core and launch debugger
165 // -XX:OnError="cat hs_err_pid%p.log | mail my_email@sun.com"
166 // -XX:OnError="kill -9 %p" // ?#!@#
168 // A simple parser for -XX:OnError, usage:
169 // ptr = OnError;
170 // while ((cmd = next_OnError_command(buffer, sizeof(buffer), &ptr) != NULL)
171 // ... ...
172 static char* next_OnError_command(char* buf, int buflen, const char** ptr) {
173 if (ptr == NULL || *ptr == NULL) return NULL;
175 const char* cmd = *ptr;
177 // skip leading blanks or ';'
178 while (*cmd == ' ' || *cmd == ';') cmd++;
180 if (*cmd == '\0') return NULL;
182 const char * cmdend = cmd;
183 while (*cmdend != '\0' && *cmdend != ';') cmdend++;
185 Arguments::copy_expand_pid(cmd, cmdend - cmd, buf, buflen);
187 *ptr = (*cmdend == '\0' ? cmdend : cmdend + 1);
188 return buf;
189 }
192 static void print_bug_submit_message(outputStream *out, Thread *thread) {
193 if (out == NULL) return;
194 out->print_raw_cr("# If you would like to submit a bug report, please visit:");
195 out->print_raw ("# ");
196 out->print_raw_cr(Arguments::java_vendor_url_bug());
197 // If the crash is in native code, encourage user to submit a bug to the
198 // provider of that code.
199 if (thread && thread->is_Java_thread() &&
200 !thread->is_hidden_from_external_view()) {
201 JavaThread* jt = (JavaThread*)thread;
202 if (jt->thread_state() == _thread_in_native) {
203 out->print_cr("# The crash happened outside the Java Virtual Machine in native code.\n# See problematic frame for where to report the bug.");
204 }
205 }
206 out->print_raw_cr("#");
207 }
209 bool VMError::coredump_status;
210 char VMError::coredump_message[O_BUFLEN];
212 void VMError::report_coredump_status(const char* message, bool status) {
213 coredump_status = status;
214 strncpy(coredump_message, message, sizeof(coredump_message));
215 coredump_message[sizeof(coredump_message)-1] = 0;
216 }
219 // Return a string to describe the error
220 char* VMError::error_string(char* buf, int buflen) {
221 char signame_buf[64];
222 const char *signame = os::exception_name(_id, signame_buf, sizeof(signame_buf));
224 if (signame) {
225 jio_snprintf(buf, buflen,
226 "%s (0x%x) at pc=" PTR_FORMAT ", pid=%d, tid=" UINTX_FORMAT,
227 signame, _id, _pc,
228 os::current_process_id(), os::current_thread_id());
229 } else if (_filename != NULL && _lineno > 0) {
230 // skip directory names
231 char separator = os::file_separator()[0];
232 const char *p = strrchr(_filename, separator);
233 int n = jio_snprintf(buf, buflen,
234 "Internal Error at %s:%d, pid=%d, tid=" UINTX_FORMAT,
235 p ? p + 1 : _filename, _lineno,
236 os::current_process_id(), os::current_thread_id());
237 if (n >= 0 && n < buflen && _message) {
238 if (_detail_msg) {
239 jio_snprintf(buf + n, buflen - n, "%s%s: %s",
240 os::line_separator(), _message, _detail_msg);
241 } else {
242 jio_snprintf(buf + n, buflen - n, "%sError: %s",
243 os::line_separator(), _message);
244 }
245 }
246 } else {
247 jio_snprintf(buf, buflen,
248 "Internal Error (0x%x), pid=%d, tid=" UINTX_FORMAT,
249 _id, os::current_process_id(), os::current_thread_id());
250 }
252 return buf;
253 }
255 void VMError::print_stack_trace(outputStream* st, JavaThread* jt,
256 char* buf, int buflen, bool verbose) {
257 #ifdef ZERO
258 if (jt->zero_stack()->sp() && jt->top_zero_frame()) {
259 // StackFrameStream uses the frame anchor, which may not have
260 // been set up. This can be done at any time in Zero, however,
261 // so if it hasn't been set up then we just set it up now and
262 // clear it again when we're done.
263 bool has_last_Java_frame = jt->has_last_Java_frame();
264 if (!has_last_Java_frame)
265 jt->set_last_Java_frame();
266 st->print("Java frames:");
268 // If the top frame is a Shark frame and the frame anchor isn't
269 // set up then it's possible that the information in the frame
270 // is garbage: it could be from a previous decache, or it could
271 // simply have never been written. So we print a warning...
272 StackFrameStream sfs(jt);
273 if (!has_last_Java_frame && !sfs.is_done()) {
274 if (sfs.current()->zeroframe()->is_shark_frame()) {
275 st->print(" (TOP FRAME MAY BE JUNK)");
276 }
277 }
278 st->cr();
280 // Print the frames
281 for(int i = 0; !sfs.is_done(); sfs.next(), i++) {
282 sfs.current()->zero_print_on_error(i, st, buf, buflen);
283 st->cr();
284 }
286 // Reset the frame anchor if necessary
287 if (!has_last_Java_frame)
288 jt->reset_last_Java_frame();
289 }
290 #else
291 if (jt->has_last_Java_frame()) {
292 st->print_cr("Java frames: (J=compiled Java code, j=interpreted, Vv=VM code)");
293 for(StackFrameStream sfs(jt); !sfs.is_done(); sfs.next()) {
294 sfs.current()->print_on_error(st, buf, buflen, verbose);
295 st->cr();
296 }
297 }
298 #endif // ZERO
299 }
301 // This is the main function to report a fatal error. Only one thread can
302 // call this function, so we don't need to worry about MT-safety. But it's
303 // possible that the error handler itself may crash or die on an internal
304 // error, for example, when the stack/heap is badly damaged. We must be
305 // able to handle recursive errors that happen inside error handler.
306 //
307 // Error reporting is done in several steps. If a crash or internal error
308 // occurred when reporting an error, the nested signal/exception handler
309 // can skip steps that are already (or partially) done. Error reporting will
310 // continue from the next step. This allows us to retrieve and print
311 // information that may be unsafe to get after a fatal error. If it happens,
312 // you may find nested report_and_die() frames when you look at the stack
313 // in a debugger.
314 //
315 // In general, a hang in error handler is much worse than a crash or internal
316 // error, as it's harder to recover from a hang. Deadlock can happen if we
317 // try to grab a lock that is already owned by current thread, or if the
318 // owner is blocked forever (e.g. in os::infinite_sleep()). If possible, the
319 // error handler and all the functions it called should avoid grabbing any
320 // lock. An important thing to notice is that memory allocation needs a lock.
321 //
322 // We should avoid using large stack allocated buffers. Many errors happen
323 // when stack space is already low. Making things even worse is that there
324 // could be nested report_and_die() calls on stack (see above). Only one
325 // thread can report error, so large buffers are statically allocated in data
326 // segment.
328 void VMError::report(outputStream* st) {
329 # define BEGIN if (_current_step == 0) { _current_step = 1;
330 # define STEP(n, s) } if (_current_step < n) { _current_step = n; _current_step_info = s;
331 # define END }
333 // don't allocate large buffer on stack
334 static char buf[O_BUFLEN];
336 BEGIN
338 STEP(10, "(printing fatal error message)")
340 st->print_cr("#");
341 if (should_report_bug(_id)) {
342 st->print_cr("# A fatal error has been detected by the Java Runtime Environment:");
343 } else {
344 st->print_cr("# There is insufficient memory for the Java "
345 "Runtime Environment to continue.");
346 }
348 STEP(15, "(printing type of error)")
350 switch(_id) {
351 case oom_error:
352 if (_size) {
353 st->print("# Native memory allocation (malloc) failed to allocate ");
354 jio_snprintf(buf, sizeof(buf), SIZE_FORMAT, _size);
355 st->print(buf);
356 st->print(" bytes");
357 if (_message != NULL) {
358 st->print(" for ");
359 st->print(_message);
360 }
361 st->cr();
362 } else {
363 if (_message != NULL)
364 st->print("# ");
365 st->print_cr(_message);
366 }
367 // In error file give some solutions
368 if (_verbose) {
369 st->print_cr("# Possible reasons:");
370 st->print_cr("# The system is out of physical RAM or swap space");
371 st->print_cr("# In 32 bit mode, the process size limit was hit");
372 st->print_cr("# Possible solutions:");
373 st->print_cr("# Reduce memory load on the system");
374 st->print_cr("# Increase physical memory or swap space");
375 st->print_cr("# Check if swap backing store is full");
376 st->print_cr("# Use 64 bit Java on a 64 bit OS");
377 st->print_cr("# Decrease Java heap size (-Xmx/-Xms)");
378 st->print_cr("# Decrease number of Java threads");
379 st->print_cr("# Decrease Java thread stack sizes (-Xss)");
380 st->print_cr("# Set larger code cache with -XX:ReservedCodeCacheSize=");
381 st->print_cr("# This output file may be truncated or incomplete.");
382 } else {
383 return; // that's enough for the screen
384 }
385 break;
386 case internal_error:
387 default:
388 break;
389 }
391 STEP(20, "(printing exception/signal name)")
393 st->print_cr("#");
394 st->print("# ");
395 // Is it an OS exception/signal?
396 if (os::exception_name(_id, buf, sizeof(buf))) {
397 st->print("%s", buf);
398 st->print(" (0x%x)", _id); // signal number
399 st->print(" at pc=" PTR_FORMAT, _pc);
400 } else {
401 if (should_report_bug(_id)) {
402 st->print("Internal Error");
403 } else {
404 st->print("Out of Memory Error");
405 }
406 if (_filename != NULL && _lineno > 0) {
407 #ifdef PRODUCT
408 // In product mode chop off pathname?
409 char separator = os::file_separator()[0];
410 const char *p = strrchr(_filename, separator);
411 const char *file = p ? p+1 : _filename;
412 #else
413 const char *file = _filename;
414 #endif
415 size_t len = strlen(file);
416 size_t buflen = sizeof(buf);
418 strncpy(buf, file, buflen);
419 if (len + 10 < buflen) {
420 sprintf(buf + len, ":%d", _lineno);
421 }
422 st->print(" (%s)", buf);
423 } else {
424 st->print(" (0x%x)", _id);
425 }
426 }
428 STEP(30, "(printing current thread and pid)")
430 // process id, thread id
431 st->print(", pid=%d", os::current_process_id());
432 st->print(", tid=" UINTX_FORMAT, os::current_thread_id());
433 st->cr();
435 STEP(40, "(printing error message)")
437 if (should_report_bug(_id)) { // already printed the message.
438 // error message
439 if (_detail_msg) {
440 st->print_cr("# %s: %s", _message ? _message : "Error", _detail_msg);
441 } else if (_message) {
442 st->print_cr("# Error: %s", _message);
443 }
444 }
446 STEP(50, "(printing Java version string)")
448 // VM version
449 st->print_cr("#");
450 JDK_Version::current().to_string(buf, sizeof(buf));
451 st->print_cr("# JRE version: %s", buf);
452 st->print_cr("# Java VM: %s (%s %s %s %s)",
453 Abstract_VM_Version::vm_name(),
454 Abstract_VM_Version::vm_release(),
455 Abstract_VM_Version::vm_info_string(),
456 Abstract_VM_Version::vm_platform_string(),
457 UseCompressedOops ? "compressed oops" : ""
458 );
460 STEP(60, "(printing problematic frame)")
462 // Print current frame if we have a context (i.e. it's a crash)
463 if (_context) {
464 st->print_cr("# Problematic frame:");
465 st->print("# ");
466 frame fr = os::fetch_frame_from_context(_context);
467 fr.print_on_error(st, buf, sizeof(buf));
468 st->cr();
469 st->print_cr("#");
470 }
471 STEP(63, "(printing core file information)")
472 st->print("# ");
473 if (coredump_status) {
474 st->print("Core dump written. Default location: %s", coredump_message);
475 } else {
476 st->print("Failed to write core dump. %s", coredump_message);
477 }
478 st->print_cr("");
479 st->print_cr("#");
481 STEP(65, "(printing bug submit message)")
483 if (should_report_bug(_id) && _verbose) {
484 print_bug_submit_message(st, _thread);
485 }
487 STEP(70, "(printing thread)" )
489 if (_verbose) {
490 st->cr();
491 st->print_cr("--------------- T H R E A D ---------------");
492 st->cr();
493 }
495 STEP(80, "(printing current thread)" )
497 // current thread
498 if (_verbose) {
499 if (_thread) {
500 st->print("Current thread (" PTR_FORMAT "): ", _thread);
501 _thread->print_on_error(st, buf, sizeof(buf));
502 st->cr();
503 } else {
504 st->print_cr("Current thread is native thread");
505 }
506 st->cr();
507 }
509 STEP(90, "(printing siginfo)" )
511 // signal no, signal code, address that caused the fault
512 if (_verbose && _siginfo) {
513 os::print_siginfo(st, _siginfo);
514 st->cr();
515 }
517 STEP(100, "(printing registers, top of stack, instructions near pc)")
519 // registers, top of stack, instructions near pc
520 if (_verbose && _context) {
521 os::print_context(st, _context);
522 st->cr();
523 }
525 STEP(105, "(printing register info)")
527 // decode register contents if possible
528 if (_verbose && _context && Universe::is_fully_initialized()) {
529 os::print_register_info(st, _context);
530 st->cr();
531 }
533 STEP(110, "(printing stack bounds)" )
535 if (_verbose) {
536 st->print("Stack: ");
538 address stack_top;
539 size_t stack_size;
541 if (_thread) {
542 stack_top = _thread->stack_base();
543 stack_size = _thread->stack_size();
544 } else {
545 stack_top = os::current_stack_base();
546 stack_size = os::current_stack_size();
547 }
549 address stack_bottom = stack_top - stack_size;
550 st->print("[" PTR_FORMAT "," PTR_FORMAT "]", stack_bottom, stack_top);
552 frame fr = _context ? os::fetch_frame_from_context(_context)
553 : os::current_frame();
555 if (fr.sp()) {
556 st->print(", sp=" PTR_FORMAT, fr.sp());
557 size_t free_stack_size = pointer_delta(fr.sp(), stack_bottom, 1024);
558 st->print(", free space=" SIZE_FORMAT "k", free_stack_size);
559 }
561 st->cr();
562 }
564 STEP(120, "(printing native stack)" )
566 if (_verbose) {
567 frame fr = _context ? os::fetch_frame_from_context(_context)
568 : os::current_frame();
570 // see if it's a valid frame
571 if (fr.pc()) {
572 st->print_cr("Native frames: (J=compiled Java code, j=interpreted, Vv=VM code, C=native code)");
574 // initialize decoder to decode C frames
575 Decoder decoder;
577 int count = 0;
578 while (count++ < StackPrintLimit) {
579 fr.print_on_error(st, buf, sizeof(buf));
580 st->cr();
581 if (os::is_first_C_frame(&fr)) break;
582 fr = os::get_sender_for_C_frame(&fr);
583 }
585 if (count > StackPrintLimit) {
586 st->print_cr("...<more frames>...");
587 }
589 st->cr();
590 }
591 }
593 STEP(130, "(printing Java stack)" )
595 if (_verbose && _thread && _thread->is_Java_thread()) {
596 print_stack_trace(st, (JavaThread*)_thread, buf, sizeof(buf));
597 }
599 STEP(135, "(printing target Java thread stack)" )
601 // printing Java thread stack trace if it is involved in GC crash
602 if (_verbose && _thread && (_thread->is_Named_thread())) {
603 JavaThread* jt = ((NamedThread *)_thread)->processed_thread();
604 if (jt != NULL) {
605 st->print_cr("JavaThread " PTR_FORMAT " (nid = " UINTX_FORMAT ") was being processed", jt, jt->osthread()->thread_id());
606 print_stack_trace(st, jt, buf, sizeof(buf), true);
607 }
608 }
610 STEP(140, "(printing VM operation)" )
612 if (_verbose && _thread && _thread->is_VM_thread()) {
613 VMThread* t = (VMThread*)_thread;
614 VM_Operation* op = t->vm_operation();
615 if (op) {
616 op->print_on_error(st);
617 st->cr();
618 st->cr();
619 }
620 }
622 STEP(150, "(printing current compile task)" )
624 if (_verbose && _thread && _thread->is_Compiler_thread()) {
625 CompilerThread* t = (CompilerThread*)_thread;
626 if (t->task()) {
627 st->cr();
628 st->print_cr("Current CompileTask:");
629 t->task()->print_line_on_error(st, buf, sizeof(buf));
630 st->cr();
631 }
632 }
634 STEP(160, "(printing process)" )
636 if (_verbose) {
637 st->cr();
638 st->print_cr("--------------- P R O C E S S ---------------");
639 st->cr();
640 }
642 STEP(170, "(printing all threads)" )
644 // all threads
645 if (_verbose && _thread) {
646 Threads::print_on_error(st, _thread, buf, sizeof(buf));
647 st->cr();
648 }
650 STEP(175, "(printing VM state)" )
652 if (_verbose) {
653 // Safepoint state
654 st->print("VM state:");
656 if (SafepointSynchronize::is_synchronizing()) st->print("synchronizing");
657 else if (SafepointSynchronize::is_at_safepoint()) st->print("at safepoint");
658 else st->print("not at safepoint");
660 // Also see if error occurred during initialization or shutdown
661 if (!Universe::is_fully_initialized()) {
662 st->print(" (not fully initialized)");
663 } else if (VM_Exit::vm_exited()) {
664 st->print(" (shutting down)");
665 } else {
666 st->print(" (normal execution)");
667 }
668 st->cr();
669 st->cr();
670 }
672 STEP(180, "(printing owned locks on error)" )
674 // mutexes/monitors that currently have an owner
675 if (_verbose) {
676 print_owned_locks_on_error(st);
677 st->cr();
678 }
680 STEP(190, "(printing heap information)" )
682 if (_verbose && Universe::is_fully_initialized()) {
683 // Print heap information before vm abort. As we'd like as much
684 // information as possible in the report we ask for the
685 // extended (i.e., more detailed) version.
686 Universe::print_on(st, true /* extended */);
687 st->cr();
688 }
690 STEP(195, "(printing code cache information)" )
692 if (_verbose && Universe::is_fully_initialized()) {
693 // print code cache information before vm abort
694 CodeCache::print_bounds(st);
695 st->cr();
696 }
698 STEP(200, "(printing dynamic libraries)" )
700 if (_verbose) {
701 // dynamic libraries, or memory map
702 os::print_dll_info(st);
703 st->cr();
704 }
706 STEP(210, "(printing VM options)" )
708 if (_verbose) {
709 // VM options
710 Arguments::print_on(st);
711 st->cr();
712 }
714 STEP(220, "(printing environment variables)" )
716 if (_verbose) {
717 os::print_environment_variables(st, env_list, buf, sizeof(buf));
718 st->cr();
719 }
721 STEP(225, "(printing signal handlers)" )
723 if (_verbose) {
724 os::print_signal_handlers(st, buf, sizeof(buf));
725 st->cr();
726 }
728 STEP(230, "" )
730 if (_verbose) {
731 st->cr();
732 st->print_cr("--------------- S Y S T E M ---------------");
733 st->cr();
734 }
736 STEP(240, "(printing OS information)" )
738 if (_verbose) {
739 os::print_os_info(st);
740 st->cr();
741 }
743 STEP(250, "(printing CPU info)" )
744 if (_verbose) {
745 os::print_cpu_info(st);
746 st->cr();
747 }
749 STEP(260, "(printing memory info)" )
751 if (_verbose) {
752 os::print_memory_info(st);
753 st->cr();
754 }
756 STEP(270, "(printing internal vm info)" )
758 if (_verbose) {
759 st->print_cr("vm_info: %s", Abstract_VM_Version::internal_vm_info_string());
760 st->cr();
761 }
763 STEP(280, "(printing date and time)" )
765 if (_verbose) {
766 os::print_date_and_time(st);
767 st->cr();
768 }
770 END
772 # undef BEGIN
773 # undef STEP
774 # undef END
775 }
777 VMError* volatile VMError::first_error = NULL;
778 volatile jlong VMError::first_error_tid = -1;
780 void VMError::report_and_die() {
781 // Don't allocate large buffer on stack
782 static char buffer[O_BUFLEN];
784 // An error could happen before tty is initialized or after it has been
785 // destroyed. Here we use a very simple unbuffered fdStream for printing.
786 // Only out.print_raw() and out.print_raw_cr() should be used, as other
787 // printing methods need to allocate large buffer on stack. To format a
788 // string, use jio_snprintf() with a static buffer or use staticBufferStream.
789 static fdStream out(defaultStream::output_fd());
791 // How many errors occurred in error handler when reporting first_error.
792 static int recursive_error_count;
794 // We will first print a brief message to standard out (verbose = false),
795 // then save detailed information in log file (verbose = true).
796 static bool out_done = false; // done printing to standard out
797 static bool log_done = false; // done saving error log
798 static bool transmit_report_done = false; // done error reporting
799 static fdStream log; // error log
801 if (SuppressFatalErrorMessage) {
802 os::abort();
803 }
804 jlong mytid = os::current_thread_id();
805 if (first_error == NULL &&
806 Atomic::cmpxchg_ptr(this, &first_error, NULL) == NULL) {
808 // first time
809 first_error_tid = mytid;
810 set_error_reported();
812 if (ShowMessageBoxOnError || PauseAtExit) {
813 show_message_box(buffer, sizeof(buffer));
815 // User has asked JVM to abort. Reset ShowMessageBoxOnError so the
816 // WatcherThread can kill JVM if the error handler hangs.
817 ShowMessageBoxOnError = false;
818 }
820 // Write a minidump on Windows, check core dump limits on Linux/Solaris
821 os::check_or_create_dump(_siginfo, _context, buffer, sizeof(buffer));
823 // reset signal handlers or exception filter; make sure recursive crashes
824 // are handled properly.
825 reset_signal_handlers();
827 } else {
828 // If UseOsErrorReporting we call this for each level of the call stack
829 // while searching for the exception handler. Only the first level needs
830 // to be reported.
831 if (UseOSErrorReporting && log_done) return;
833 // This is not the first error, see if it happened in a different thread
834 // or in the same thread during error reporting.
835 if (first_error_tid != mytid) {
836 jio_snprintf(buffer, sizeof(buffer),
837 "[thread " INT64_FORMAT " also had an error]",
838 mytid);
839 out.print_raw_cr(buffer);
841 // error reporting is not MT-safe, block current thread
842 os::infinite_sleep();
844 } else {
845 if (recursive_error_count++ > 30) {
846 out.print_raw_cr("[Too many errors, abort]");
847 os::die();
848 }
850 jio_snprintf(buffer, sizeof(buffer),
851 "[error occurred during error reporting %s, id 0x%x]",
852 first_error ? first_error->_current_step_info : "",
853 _id);
854 if (log.is_open()) {
855 log.cr();
856 log.print_raw_cr(buffer);
857 log.cr();
858 } else {
859 out.cr();
860 out.print_raw_cr(buffer);
861 out.cr();
862 }
863 }
864 }
866 // print to screen
867 if (!out_done) {
868 first_error->_verbose = false;
870 staticBufferStream sbs(buffer, sizeof(buffer), &out);
871 first_error->report(&sbs);
873 out_done = true;
875 first_error->_current_step = 0; // reset current_step
876 first_error->_current_step_info = ""; // reset current_step string
877 }
879 // print to error log file
880 if (!log_done) {
881 first_error->_verbose = true;
883 // see if log file is already open
884 if (!log.is_open()) {
885 // open log file
886 int fd = -1;
888 if (ErrorFile != NULL) {
889 bool copy_ok =
890 Arguments::copy_expand_pid(ErrorFile, strlen(ErrorFile), buffer, sizeof(buffer));
891 if (copy_ok) {
892 fd = open(buffer, O_RDWR | O_CREAT | O_TRUNC, 0666);
893 }
894 }
896 if (fd == -1) {
897 const char *cwd = os::get_current_directory(buffer, sizeof(buffer));
898 size_t len = strlen(cwd);
899 // either user didn't specify, or the user's location failed,
900 // so use the default name in the current directory
901 jio_snprintf(&buffer[len], sizeof(buffer)-len, "%shs_err_pid%u.log",
902 os::file_separator(), os::current_process_id());
903 fd = open(buffer, O_RDWR | O_CREAT | O_TRUNC, 0666);
904 }
906 if (fd == -1) {
907 const char * tmpdir = os::get_temp_directory();
908 // try temp directory if it exists.
909 if (tmpdir != NULL && tmpdir[0] != '\0') {
910 jio_snprintf(buffer, sizeof(buffer), "%s%shs_err_pid%u.log",
911 tmpdir, os::file_separator(), os::current_process_id());
912 fd = open(buffer, O_RDWR | O_CREAT | O_TRUNC, 0666);
913 }
914 }
916 if (fd != -1) {
917 out.print_raw("# An error report file with more information is saved as:\n# ");
918 out.print_raw_cr(buffer);
919 os::set_error_file(buffer);
921 log.set_fd(fd);
922 } else {
923 out.print_raw_cr("# Can not save log file, dump to screen..");
924 log.set_fd(defaultStream::output_fd());
925 /* Error reporting currently needs dumpfile.
926 * Maybe implement direct streaming in the future.*/
927 transmit_report_done = true;
928 }
929 }
931 staticBufferStream sbs(buffer, O_BUFLEN, &log);
932 first_error->report(&sbs);
933 first_error->_current_step = 0; // reset current_step
934 first_error->_current_step_info = ""; // reset current_step string
936 // Run error reporting to determine whether or not to report the crash.
937 if (!transmit_report_done && should_report_bug(first_error->_id)) {
938 transmit_report_done = true;
939 FILE* hs_err = ::fdopen(log.fd(), "r");
940 if (NULL != hs_err) {
941 ErrorReporter er;
942 er.call(hs_err, buffer, O_BUFLEN);
943 }
944 }
946 if (log.fd() != defaultStream::output_fd()) {
947 close(log.fd());
948 }
950 log.set_fd(-1);
951 log_done = true;
952 }
955 static bool skip_OnError = false;
956 if (!skip_OnError && OnError && OnError[0]) {
957 skip_OnError = true;
959 out.print_raw_cr("#");
960 out.print_raw ("# -XX:OnError=\"");
961 out.print_raw (OnError);
962 out.print_raw_cr("\"");
964 char* cmd;
965 const char* ptr = OnError;
966 while ((cmd = next_OnError_command(buffer, sizeof(buffer), &ptr)) != NULL){
967 out.print_raw ("# Executing ");
968 #if defined(LINUX) || defined(_ALLBSD_SOURCE)
969 out.print_raw ("/bin/sh -c ");
970 #elif defined(SOLARIS)
971 out.print_raw ("/usr/bin/sh -c ");
972 #endif
973 out.print_raw ("\"");
974 out.print_raw (cmd);
975 out.print_raw_cr("\" ...");
977 os::fork_and_exec(cmd);
978 }
980 // done with OnError
981 OnError = NULL;
982 }
984 static bool skip_bug_url = !should_report_bug(first_error->_id);
985 if (!skip_bug_url) {
986 skip_bug_url = true;
988 out.print_raw_cr("#");
989 print_bug_submit_message(&out, _thread);
990 }
992 if (!UseOSErrorReporting) {
993 // os::abort() will call abort hooks, try it first.
994 static bool skip_os_abort = false;
995 if (!skip_os_abort) {
996 skip_os_abort = true;
997 bool dump_core = should_report_bug(first_error->_id);
998 os::abort(dump_core);
999 }
1001 // if os::abort() doesn't abort, try os::die();
1002 os::die();
1003 }
1004 }
1006 /*
1007 * OnOutOfMemoryError scripts/commands executed while VM is a safepoint - this
1008 * ensures utilities such as jmap can observe the process is a consistent state.
1009 */
1010 class VM_ReportJavaOutOfMemory : public VM_Operation {
1011 private:
1012 VMError *_err;
1013 public:
1014 VM_ReportJavaOutOfMemory(VMError *err) { _err = err; }
1015 VMOp_Type type() const { return VMOp_ReportJavaOutOfMemory; }
1016 void doit();
1017 };
1019 void VM_ReportJavaOutOfMemory::doit() {
1020 // Don't allocate large buffer on stack
1021 static char buffer[O_BUFLEN];
1023 tty->print_cr("#");
1024 tty->print_cr("# java.lang.OutOfMemoryError: %s", _err->message());
1025 tty->print_cr("# -XX:OnOutOfMemoryError=\"%s\"", OnOutOfMemoryError);
1027 // make heap parsability
1028 Universe::heap()->ensure_parsability(false); // no need to retire TLABs
1030 char* cmd;
1031 const char* ptr = OnOutOfMemoryError;
1032 while ((cmd = next_OnError_command(buffer, sizeof(buffer), &ptr)) != NULL){
1033 tty->print("# Executing ");
1034 #if defined(LINUX)
1035 tty->print ("/bin/sh -c ");
1036 #elif defined(SOLARIS)
1037 tty->print ("/usr/bin/sh -c ");
1038 #endif
1039 tty->print_cr("\"%s\"...", cmd);
1041 os::fork_and_exec(cmd);
1042 }
1043 }
1045 void VMError::report_java_out_of_memory() {
1046 if (OnOutOfMemoryError && OnOutOfMemoryError[0]) {
1047 MutexLocker ml(Heap_lock);
1048 VM_ReportJavaOutOfMemory op(this);
1049 VMThread::execute(&op);
1050 }
1051 }
