1 /*
2 * Copyright (c) 2003, 2015, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 *
23 */
24
25 #include <fcntl.h>
26 #include "precompiled.hpp"
27 #include "code/codeCache.hpp"
28 #include "compiler/compileBroker.hpp"
29 #include "compiler/disassembler.hpp"
30 #include "gc/shared/collectedHeap.hpp"
31 #include "prims/whitebox.hpp"
32 #include "runtime/arguments.hpp"
33 #include "runtime/atomic.inline.hpp"
34 #include "runtime/frame.inline.hpp"
35 #include "runtime/init.hpp"
36 #include "runtime/os.hpp"
37 #include "runtime/thread.inline.hpp"
38 #include "runtime/vmThread.hpp"
39 #include "runtime/vm_operations.hpp"
40 #include "services/memTracker.hpp"
41 #include "utilities/debug.hpp"
42 #include "utilities/decoder.hpp"
43 #include "utilities/defaultStream.hpp"
44 #include "utilities/errorReporter.hpp"
45 #include "utilities/events.hpp"
46 #include "utilities/top.hpp"
47 #include "utilities/vmError.hpp"
48
49 // List of environment variables that should be reported in error log file.
50 const char *env_list[] = {
51 // All platforms
52 "JAVA_HOME", "JRE_HOME", "JAVA_TOOL_OPTIONS", "_JAVA_OPTIONS", "CLASSPATH",
53 "JAVA_COMPILER", "PATH", "USERNAME",
54
55 // Env variables that are defined on Solaris/Linux/BSD
56 "LD_LIBRARY_PATH", "LD_PRELOAD", "SHELL", "DISPLAY",
57 "HOSTTYPE", "OSTYPE", "ARCH", "MACHTYPE",
58
59 // defined on Linux
60 "LD_ASSUME_KERNEL", "_JAVA_SR_SIGNUM",
61
62 // defined on Darwin
63 "DYLD_LIBRARY_PATH", "DYLD_FALLBACK_LIBRARY_PATH",
64 "DYLD_FRAMEWORK_PATH", "DYLD_FALLBACK_FRAMEWORK_PATH",
65 "DYLD_INSERT_LIBRARIES",
66
67 // defined on Windows
68 "OS", "PROCESSOR_IDENTIFIER", "_ALT_JAVA_HOME_DIR",
69
70 (const char *)0
71 };
72
73 // A simple parser for -XX:OnError, usage:
74 // ptr = OnError;
75 // while ((cmd = next_OnError_command(buffer, sizeof(buffer), &ptr) != NULL)
76 // ... ...
77 static char* next_OnError_command(char* buf, int buflen, const char** ptr) {
78 if (ptr == NULL || *ptr == NULL) return NULL;
79
80 const char* cmd = *ptr;
81
82 // skip leading blanks or ';'
83 while (*cmd == ' ' || *cmd == ';') cmd++;
84
85 if (*cmd == '\0') return NULL;
86
87 const char * cmdend = cmd;
88 while (*cmdend != '\0' && *cmdend != ';') cmdend++;
89
90 Arguments::copy_expand_pid(cmd, cmdend - cmd, buf, buflen);
91
92 *ptr = (*cmdend == '\0' ? cmdend : cmdend + 1);
93 return buf;
94 }
95
96 static void print_bug_submit_message(outputStream *out, Thread *thread) {
97 if (out == NULL) return;
98 out->print_raw_cr("# If you would like to submit a bug report, please visit:");
99 out->print_raw ("# ");
100 out->print_raw_cr(Arguments::java_vendor_url_bug());
101 // If the crash is in native code, encourage user to submit a bug to the
102 // provider of that code.
103 if (thread && thread->is_Java_thread() &&
104 !thread->is_hidden_from_external_view()) {
105 JavaThread* jt = (JavaThread*)thread;
106 if (jt->thread_state() == _thread_in_native) {
107 out->print_cr("# The crash happened outside the Java Virtual Machine in native code.\n# See problematic frame for where to report the bug.");
108 }
109 }
110 out->print_raw_cr("#");
111 }
112
113 bool VMError::coredump_status;
114 char VMError::coredump_message[O_BUFLEN];
115
116 void VMError::record_coredump_status(const char* message, bool status) {
117 coredump_status = status;
118 strncpy(coredump_message, message, sizeof(coredump_message));
119 coredump_message[sizeof(coredump_message)-1] = 0;
120 }
121
122 // Return a string to describe the error
123 char* VMError::error_string(char* buf, int buflen) {
124 char signame_buf[64];
125 const char *signame = os::exception_name(_id, signame_buf, sizeof(signame_buf));
126
127 if (signame) {
128 jio_snprintf(buf, buflen,
129 "%s (0x%x) at pc=" PTR_FORMAT ", pid=%d, tid=" UINTX_FORMAT,
130 signame, _id, _pc,
131 os::current_process_id(), os::current_thread_id());
132 } else if (_filename != NULL && _lineno > 0) {
133 // skip directory names
134 char separator = os::file_separator()[0];
135 const char *p = strrchr(_filename, separator);
136 int n = jio_snprintf(buf, buflen,
137 "Internal Error at %s:%d, pid=%d, tid=" UINTX_FORMAT,
138 p ? p + 1 : _filename, _lineno,
139 os::current_process_id(), os::current_thread_id());
140 if (n >= 0 && n < buflen && _message) {
141 if (strlen(_detail_msg) > 0) {
142 jio_snprintf(buf + n, buflen - n, "%s%s: %s",
143 os::line_separator(), _message, _detail_msg);
144 } else {
145 jio_snprintf(buf + n, buflen - n, "%sError: %s",
146 os::line_separator(), _message);
147 }
148 }
149 } else {
150 jio_snprintf(buf, buflen,
151 "Internal Error (0x%x), pid=%d, tid=" UINTX_FORMAT,
152 _id, os::current_process_id(), os::current_thread_id());
153 }
154
155 return buf;
156 }
157
158 void VMError::print_stack_trace(outputStream* st, JavaThread* jt,
159 char* buf, int buflen, bool verbose) {
160 #ifdef ZERO
161 if (jt->zero_stack()->sp() && jt->top_zero_frame()) {
162 // StackFrameStream uses the frame anchor, which may not have
163 // been set up. This can be done at any time in Zero, however,
164 // so if it hasn't been set up then we just set it up now and
165 // clear it again when we're done.
166 bool has_last_Java_frame = jt->has_last_Java_frame();
167 if (!has_last_Java_frame)
168 jt->set_last_Java_frame();
169 st->print("Java frames:");
170
171 // If the top frame is a Shark frame and the frame anchor isn't
172 // set up then it's possible that the information in the frame
173 // is garbage: it could be from a previous decache, or it could
174 // simply have never been written. So we print a warning...
175 StackFrameStream sfs(jt);
176 if (!has_last_Java_frame && !sfs.is_done()) {
177 if (sfs.current()->zeroframe()->is_shark_frame()) {
178 st->print(" (TOP FRAME MAY BE JUNK)");
179 }
180 }
181 st->cr();
182
183 // Print the frames
184 for(int i = 0; !sfs.is_done(); sfs.next(), i++) {
185 sfs.current()->zero_print_on_error(i, st, buf, buflen);
186 st->cr();
187 }
188
189 // Reset the frame anchor if necessary
190 if (!has_last_Java_frame)
191 jt->reset_last_Java_frame();
192 }
193 #else
194 if (jt->has_last_Java_frame()) {
195 st->print_cr("Java frames: (J=compiled Java code, j=interpreted, Vv=VM code)");
196 for(StackFrameStream sfs(jt); !sfs.is_done(); sfs.next()) {
197 sfs.current()->print_on_error(st, buf, buflen, verbose);
198 st->cr();
199 }
200 }
201 #endif // ZERO
202 }
203
204 static void print_oom_reasons(outputStream* st) {
205 st->print_cr("# Possible reasons:");
206 st->print_cr("# The system is out of physical RAM or swap space");
207 st->print_cr("# In 32 bit mode, the process size limit was hit");
208 st->print_cr("# Possible solutions:");
209 st->print_cr("# Reduce memory load on the system");
210 st->print_cr("# Increase physical memory or swap space");
211 st->print_cr("# Check if swap backing store is full");
212 st->print_cr("# Use 64 bit Java on a 64 bit OS");
213 st->print_cr("# Decrease Java heap size (-Xmx/-Xms)");
214 st->print_cr("# Decrease number of Java threads");
215 st->print_cr("# Decrease Java thread stack sizes (-Xss)");
216 st->print_cr("# Set larger code cache with -XX:ReservedCodeCacheSize=");
217 st->print_cr("# This output file may be truncated or incomplete.");
218 }
219
220 static const char* gc_mode() {
221 if (UseG1GC) return "g1 gc";
222 if (UseParallelGC) return "parallel gc";
223 if (UseConcMarkSweepGC) return "concurrent mark sweep gc";
224 if (UseSerialGC) return "serial gc";
225 return "ERROR in GC mode";
226 }
227
228 static void report_vm_version(outputStream* st, char* buf, int buflen) {
229 // VM version
230 st->print_cr("#");
231 JDK_Version::current().to_string(buf, buflen);
232 const char* runtime_name = JDK_Version::runtime_name() != NULL ?
233 JDK_Version::runtime_name() : "";
234 const char* runtime_version = JDK_Version::runtime_version() != NULL ?
235 JDK_Version::runtime_version() : "";
236 st->print_cr("# JRE version: %s (%s) (build %s)", runtime_name, buf, runtime_version);
237 // This is the long version with some default settings added
238 st->print_cr("# Java VM: %s (%s, %s%s%s%s%s, %s, %s)",
239 Abstract_VM_Version::vm_name(),
240 Abstract_VM_Version::vm_release(),
241 Abstract_VM_Version::vm_info_string(),
242 TieredCompilation ? ", tiered" : "",
243 #if INCLUDE_JVMCI
244 EnableJVMCI ? ", jvmci" : "",
245 UseJVMCICompiler ? ", jvmci compiler" : "",
246 #else
247 "", "",
248 #endif
249 UseCompressedOops ? ", compressed oops" : "",
250 gc_mode(),
251 Abstract_VM_Version::vm_platform_string()
252 );
253 }
254
255 // This is the main function to report a fatal error. Only one thread can
256 // call this function, so we don't need to worry about MT-safety. But it's
257 // possible that the error handler itself may crash or die on an internal
258 // error, for example, when the stack/heap is badly damaged. We must be
259 // able to handle recursive errors that happen inside error handler.
260 //
261 // Error reporting is done in several steps. If a crash or internal error
262 // occurred when reporting an error, the nested signal/exception handler
263 // can skip steps that are already (or partially) done. Error reporting will
264 // continue from the next step. This allows us to retrieve and print
265 // information that may be unsafe to get after a fatal error. If it happens,
266 // you may find nested report_and_die() frames when you look at the stack
267 // in a debugger.
268 //
269 // In general, a hang in error handler is much worse than a crash or internal
270 // error, as it's harder to recover from a hang. Deadlock can happen if we
271 // try to grab a lock that is already owned by current thread, or if the
272 // owner is blocked forever (e.g. in os::infinite_sleep()). If possible, the
273 // error handler and all the functions it called should avoid grabbing any
274 // lock. An important thing to notice is that memory allocation needs a lock.
275 //
276 // We should avoid using large stack allocated buffers. Many errors happen
277 // when stack space is already low. Making things even worse is that there
278 // could be nested report_and_die() calls on stack (see above). Only one
279 // thread can report error, so large buffers are statically allocated in data
280 // segment.
281
282 int VMError::_current_step;
283 const char* VMError::_current_step_info;
284
285 void VMError::report(outputStream* st, bool _verbose) {
286
287 # define BEGIN if (_current_step == 0) { _current_step = 1;
288 # define STEP(n, s) } if (_current_step < n) { _current_step = n; _current_step_info = s;
289 # define END }
290
291 // don't allocate large buffer on stack
292 static char buf[O_BUFLEN];
293
294 BEGIN
295
296 STEP(10, "(printing fatal error message)")
297
298 st->print_cr("#");
299 if (should_report_bug(_id)) {
300 st->print_cr("# A fatal error has been detected by the Java Runtime Environment:");
301 } else {
302 st->print_cr("# There is insufficient memory for the Java "
303 "Runtime Environment to continue.");
304 }
305
306 #ifndef PRODUCT
307 // Error handler self tests
308
309 // test secondary error handling. Test it twice, to test that resetting
310 // error handler after a secondary crash works.
311 STEP(20, "(test secondary crash 1)")
312 if (_verbose && TestCrashInErrorHandler != 0) {
313 st->print_cr("Will crash now (TestCrashInErrorHandler=" UINTX_FORMAT ")...",
314 TestCrashInErrorHandler);
315 controlled_crash(TestCrashInErrorHandler);
316 }
317
318 STEP(30, "(test secondary crash 2)")
319 if (_verbose && TestCrashInErrorHandler != 0) {
320 st->print_cr("Will crash now (TestCrashInErrorHandler=" UINTX_FORMAT ")...",
321 TestCrashInErrorHandler);
322 controlled_crash(TestCrashInErrorHandler);
323 }
324
325 STEP(40, "(test safefetch in error handler)")
326 // test whether it is safe to use SafeFetch32 in Crash Handler. Test twice
327 // to test that resetting the signal handler works correctly.
328 if (_verbose && TestSafeFetchInErrorHandler) {
329 st->print_cr("Will test SafeFetch...");
330 if (CanUseSafeFetch32()) {
331 int* const invalid_pointer = (int*) get_segfault_address();
332 const int x = 0x76543210;
333 int i1 = SafeFetch32(invalid_pointer, x);
334 int i2 = SafeFetch32(invalid_pointer, x);
335 if (i1 == x && i2 == x) {
336 st->print_cr("SafeFetch OK."); // Correctly deflected and returned default pattern
337 } else {
338 st->print_cr("??");
339 }
340 } else {
341 st->print_cr("not possible; skipped.");
342 }
343 }
344 #endif // PRODUCT
345
346 STEP(50, "(printing type of error)")
347
348 switch(_id) {
349 case OOM_MALLOC_ERROR:
350 case OOM_MMAP_ERROR:
351 if (_size) {
352 st->print("# Native memory allocation ");
353 st->print((_id == (int)OOM_MALLOC_ERROR) ? "(malloc) failed to allocate " :
354 "(mmap) failed to map ");
355 jio_snprintf(buf, sizeof(buf), SIZE_FORMAT, _size);
356 st->print("%s", buf);
357 st->print(" bytes");
358 if (strlen(_detail_msg) > 0) {
359 st->print(" for ");
360 st->print("%s", _detail_msg);
361 }
362 st->cr();
363 } else {
364 if (strlen(_detail_msg) > 0) {
365 st->print("# ");
366 st->print_cr("%s", _detail_msg);
367 }
368 }
369 // In error file give some solutions
370 if (_verbose) {
371 print_oom_reasons(st);
372 } else {
373 return; // that's enough for the screen
374 }
375 break;
376 case INTERNAL_ERROR:
377 default:
378 break;
379 }
380
381 STEP(60, "(printing exception/signal name)")
382
383 st->print_cr("#");
384 st->print("# ");
385 // Is it an OS exception/signal?
386 if (os::exception_name(_id, buf, sizeof(buf))) {
387 st->print("%s", buf);
388 st->print(" (0x%x)", _id); // signal number
389 st->print(" at pc=" PTR_FORMAT, p2i(_pc));
390 } else {
391 if (should_report_bug(_id)) {
392 st->print("Internal Error");
393 } else {
394 st->print("Out of Memory Error");
395 }
396 if (_filename != NULL && _lineno > 0) {
397 #ifdef PRODUCT
398 // In product mode chop off pathname?
399 char separator = os::file_separator()[0];
400 const char *p = strrchr(_filename, separator);
401 const char *file = p ? p+1 : _filename;
402 #else
403 const char *file = _filename;
404 #endif
405 st->print(" (%s:%d)", file, _lineno);
406 } else {
407 st->print(" (0x%x)", _id);
408 }
409 }
410
411 STEP(70, "(printing current thread and pid)")
412
413 // process id, thread id
414 st->print(", pid=%d", os::current_process_id());
415 st->print(", tid=" UINTX_FORMAT, os::current_thread_id());
416 st->cr();
417
418 STEP(80, "(printing error message)")
419
420 if (should_report_bug(_id)) { // already printed the message.
421 // error message
422 if (strlen(_detail_msg) > 0) {
423 st->print_cr("# %s: %s", _message ? _message : "Error", _detail_msg);
424 } else if (_message) {
425 st->print_cr("# Error: %s", _message);
426 }
427 }
428
429 STEP(90, "(printing Java version string)")
430
431 report_vm_version(st, buf, sizeof(buf));
432
433 STEP(100, "(printing problematic frame)")
434
435 // Print current frame if we have a context (i.e. it's a crash)
436 if (_context) {
437 st->print_cr("# Problematic frame:");
438 st->print("# ");
439 frame fr = os::fetch_frame_from_context(_context);
440 fr.print_on_error(st, buf, sizeof(buf));
441 st->cr();
442 st->print_cr("#");
443 }
444
445 STEP(110, "(printing core file information)")
446 st->print("# ");
447 if (CreateCoredumpOnCrash) {
448 if (coredump_status) {
449 st->print("Core dump will be written. Default location: %s", coredump_message);
450 } else {
451 st->print("No core dump will be written. %s", coredump_message);
452 }
453 } else {
454 st->print("CreateCoredumpOnCrash turned off, no core file dumped");
455 }
456 st->cr();
457 st->print_cr("#");
458
459 STEP(120, "(printing bug submit message)")
460
461 if (should_report_bug(_id) && _verbose) {
462 print_bug_submit_message(st, _thread);
463 }
464
465 STEP(130, "(printing summary)" )
466
467 if (_verbose) {
468 st->cr();
469 st->print_cr("--------------- S U M M A R Y ------------");
470 st->cr();
471 }
472
473 STEP(140, "(printing VM option summary)" )
474
475 if (_verbose) {
476 // VM options
477 Arguments::print_summary_on(st);
478 st->cr();
479 }
480
481 STEP(150, "(printing summary machine and OS info)")
482
483 if (_verbose) {
484 os::print_summary_info(st, buf, sizeof(buf));
485 }
486
487
488 STEP(160, "(printing date and time)" )
489
490 if (_verbose) {
491 os::print_date_and_time(st, buf, sizeof(buf));
492 }
493
494 STEP(170, "(printing thread)" )
495
496 if (_verbose) {
497 st->cr();
498 st->print_cr("--------------- T H R E A D ---------------");
499 st->cr();
500 }
501
502 STEP(180, "(printing current thread)" )
503
504 // current thread
505 if (_verbose) {
506 if (_thread) {
507 st->print("Current thread (" PTR_FORMAT "): ", p2i(_thread));
508 _thread->print_on_error(st, buf, sizeof(buf));
509 st->cr();
510 } else {
511 st->print_cr("Current thread is native thread");
512 }
513 st->cr();
514 }
515
516 STEP(190, "(printing current compile task)" )
517
518 if (_verbose && _thread && _thread->is_Compiler_thread()) {
519 CompilerThread* t = (CompilerThread*)_thread;
520 if (t->task()) {
521 st->print_cr("Current CompileTask:");
522 t->task()->print_line_on_error(st, buf, sizeof(buf));
523 st->cr();
524 }
525
526 if (t->env()) {
527 st->print_cr("Compiling with directive:");
528 if (t->env()->directive()) {
529 t->env()->directive()->print(st);
530 } else {
531 st->print_cr("No directive found:");
532 }
533 st->cr();
534 }
535 }
536
537 STEP(200, "(printing stack bounds)" )
538
539 if (_verbose) {
540 st->print("Stack: ");
541
542 address stack_top;
543 size_t stack_size;
544
545 if (_thread) {
546 stack_top = _thread->stack_base();
547 stack_size = _thread->stack_size();
548 } else {
549 stack_top = os::current_stack_base();
550 stack_size = os::current_stack_size();
551 }
552
553 address stack_bottom = stack_top - stack_size;
554 st->print("[" PTR_FORMAT "," PTR_FORMAT "]", p2i(stack_bottom), p2i(stack_top));
555
556 frame fr = _context ? os::fetch_frame_from_context(_context)
557 : os::current_frame();
558
559 if (fr.sp()) {
560 st->print(", sp=" PTR_FORMAT, p2i(fr.sp()));
561 size_t free_stack_size = pointer_delta(fr.sp(), stack_bottom, 1024);
562 st->print(", free space=" SIZE_FORMAT "k", free_stack_size);
563 }
564
565 st->cr();
566 }
567
568 STEP(210, "(printing native stack)" )
569
570 if (_verbose) {
571 if (os::platform_print_native_stack(st, _context, buf, sizeof(buf))) {
572 // We have printed the native stack in platform-specific code
573 // Windows/x64 needs special handling.
574 } else {
575 frame fr = _context ? os::fetch_frame_from_context(_context)
576 : os::current_frame();
577
578 print_native_stack(st, fr, _thread, buf, sizeof(buf));
579 }
580 }
581
582 STEP(220, "(printing Java stack)" )
583
584 if (_verbose && _thread && _thread->is_Java_thread()) {
585 print_stack_trace(st, (JavaThread*)_thread, buf, sizeof(buf));
586 }
587
588 STEP(230, "(printing target Java thread stack)" )
589
590 // printing Java thread stack trace if it is involved in GC crash
591 if (_verbose && _thread && (_thread->is_Named_thread())) {
592 JavaThread* jt = ((NamedThread *)_thread)->processed_thread();
593 if (jt != NULL) {
594 st->print_cr("JavaThread " PTR_FORMAT " (nid = %d) was being processed", p2i(jt), jt->osthread()->thread_id());
595 print_stack_trace(st, jt, buf, sizeof(buf), true);
596 }
597 }
598
599 STEP(240, "(printing siginfo)" )
600
601 // signal no, signal code, address that caused the fault
602 if (_verbose && _siginfo) {
603 st->cr();
604 os::print_siginfo(st, _siginfo);
605 st->cr();
606 }
607
608 STEP(245, "(CDS archive access warning)" )
609
610 // Print an explicit hint if we crashed on access to the CDS archive.
611 if (_verbose && _siginfo) {
612 check_failing_cds_access(st, _siginfo);
613 st->cr();
614 }
615
616 STEP(250, "(printing register info)")
617
618 // decode register contents if possible
619 if (_verbose && _context && Universe::is_fully_initialized()) {
620 os::print_register_info(st, _context);
621 st->cr();
622 }
623
624 STEP(260, "(printing registers, top of stack, instructions near pc)")
625
626 // registers, top of stack, instructions near pc
627 if (_verbose && _context) {
628 os::print_context(st, _context);
629 st->cr();
630 }
631
632 STEP(265, "(printing code blob if possible)")
633
634 if (_verbose && _context) {
635 CodeBlob* cb = CodeCache::find_blob(_pc);
636 if (cb != NULL) {
637 if (Interpreter::contains(_pc)) {
638 // The interpreter CodeBlob is very large so try to print the codelet instead.
639 InterpreterCodelet* codelet = Interpreter::codelet_containing(_pc);
640 if (codelet != NULL) {
641 codelet->print_on(st);
642 Disassembler::decode(codelet->code_begin(), codelet->code_end(), st);
643 }
644 } else {
645 StubCodeDesc* desc = StubCodeDesc::desc_for(_pc);
646 if (desc != NULL) {
647 desc->print_on(st);
648 Disassembler::decode(desc->begin(), desc->end(), st);
649 } else {
650 Disassembler::decode(cb, st);
651 st->cr();
652 }
653 }
654 }
655 }
656
657 STEP(270, "(printing VM operation)" )
658
659 if (_verbose && _thread && _thread->is_VM_thread()) {
660 VMThread* t = (VMThread*)_thread;
661 VM_Operation* op = t->vm_operation();
662 if (op) {
663 op->print_on_error(st);
664 st->cr();
665 st->cr();
666 }
667 }
668
669 STEP(280, "(printing process)" )
670
671 if (_verbose) {
672 st->cr();
673 st->print_cr("--------------- P R O C E S S ---------------");
674 st->cr();
675 }
676
677 STEP(290, "(printing all threads)" )
678
679 // all threads
680 if (_verbose && _thread) {
681 Threads::print_on_error(st, _thread, buf, sizeof(buf));
682 st->cr();
683 }
684
685 STEP(300, "(printing VM state)" )
686
687 if (_verbose) {
688 // Safepoint state
689 st->print("VM state:");
690
691 if (SafepointSynchronize::is_synchronizing()) st->print("synchronizing");
692 else if (SafepointSynchronize::is_at_safepoint()) st->print("at safepoint");
693 else st->print("not at safepoint");
694
695 // Also see if error occurred during initialization or shutdown
696 if (!Universe::is_fully_initialized()) {
697 st->print(" (not fully initialized)");
698 } else if (VM_Exit::vm_exited()) {
699 st->print(" (shutting down)");
700 } else {
701 st->print(" (normal execution)");
702 }
703 st->cr();
704 st->cr();
705 }
706
707 STEP(310, "(printing owned locks on error)" )
708
709 // mutexes/monitors that currently have an owner
710 if (_verbose) {
711 print_owned_locks_on_error(st);
712 st->cr();
713 }
714
715 STEP(320, "(printing number of OutOfMemoryError and StackOverflow exceptions)")
716
717 if (_verbose && Exceptions::has_exception_counts()) {
718 st->print_cr("OutOfMemory and StackOverflow Exception counts:");
719 Exceptions::print_exception_counts_on_error(st);
720 st->cr();
721 }
722
723 STEP(330, "(printing compressed oops mode")
724
725 if (_verbose && UseCompressedOops) {
726 Universe::print_compressed_oops_mode(st);
727 if (UseCompressedClassPointers) {
728 Metaspace::print_compressed_class_space(st);
729 }
730 st->cr();
731 }
732
733 STEP(340, "(printing heap information)" )
734
735 if (_verbose && Universe::is_fully_initialized()) {
736 Universe::heap()->print_on_error(st);
737 st->cr();
738 st->print_cr("Polling page: " INTPTR_FORMAT, p2i(os::get_polling_page()));
739 st->cr();
740 }
741
742 STEP(350, "(printing code cache information)" )
743
744 if (_verbose && Universe::is_fully_initialized()) {
745 // print code cache information before vm abort
746 CodeCache::print_summary(st);
747 st->cr();
748 }
749
750 STEP(360, "(printing ring buffers)" )
751
752 if (_verbose) {
753 Events::print_all(st);
754 st->cr();
755 }
756
757 STEP(370, "(printing dynamic libraries)" )
758
759 if (_verbose) {
760 // dynamic libraries, or memory map
761 os::print_dll_info(st);
762 st->cr();
763 }
764
765 STEP(380, "(printing VM options)" )
766
767 if (_verbose) {
768 // VM options
769 Arguments::print_on(st);
770 st->cr();
771 }
772
773 STEP(390, "(printing warning if internal testing API used)" )
774
775 if (WhiteBox::used()) {
776 st->print_cr("Unsupported internal testing APIs have been used.");
777 st->cr();
778 }
779
780 STEP(400, "(printing all environment variables)" )
781
782 if (_verbose) {
783 os::print_environment_variables(st, env_list);
784 st->cr();
785 }
786
787 STEP(410, "(printing signal handlers)" )
788
789 if (_verbose) {
790 os::print_signal_handlers(st, buf, sizeof(buf));
791 st->cr();
792 }
793
794 STEP(420, "(Native Memory Tracking)" )
795 if (_verbose) {
796 MemTracker::error_report(st);
797 }
798
799 STEP(430, "(printing system)" )
800
801 if (_verbose) {
802 st->cr();
803 st->print_cr("--------------- S Y S T E M ---------------");
804 st->cr();
805 }
806
807 STEP(440, "(printing OS information)" )
808
809 if (_verbose) {
810 os::print_os_info(st);
811 st->cr();
812 }
813
814 STEP(450, "(printing CPU info)" )
815 if (_verbose) {
816 os::print_cpu_info(st, buf, sizeof(buf));
817 st->cr();
818 }
819
820 STEP(460, "(printing memory info)" )
821
822 if (_verbose) {
823 os::print_memory_info(st);
824 st->cr();
825 }
826
827 STEP(470, "(printing internal vm info)" )
828
829 if (_verbose) {
830 st->print_cr("vm_info: %s", Abstract_VM_Version::internal_vm_info_string());
831 st->cr();
832 }
833
834 // print a defined marker to show that error handling finished correctly.
835 STEP(480, "(printing end marker)" )
836
837 if (_verbose) {
838 st->print_cr("END.");
839 }
840
841 END
842
843 # undef BEGIN
844 # undef STEP
845 # undef END
846 }
847
848 // Report for the vm_info_cmd. This prints out the information above omitting
849 // crash and thread specific information. If output is added above, it should be added
850 // here also, if it is safe to call during a running process.
851 void VMError::print_vm_info(outputStream* st) {
852
853 char buf[O_BUFLEN];
854 report_vm_version(st, buf, sizeof(buf));
855
856 // STEP("(printing summary)")
857
858 st->cr();
859 st->print_cr("--------------- S U M M A R Y ------------");
860 st->cr();
861
862 // STEP("(printing VM option summary)")
863
864 // VM options
865 Arguments::print_summary_on(st);
866 st->cr();
867
868 // STEP("(printing summary machine and OS info)")
869
870 os::print_summary_info(st, buf, sizeof(buf));
871
872 // STEP("(printing date and time)")
873
874 os::print_date_and_time(st, buf, sizeof(buf));
875
876 // Skip: STEP("(printing thread)")
877
878 // STEP("(printing process)")
879
880 st->cr();
881 st->print_cr("--------------- P R O C E S S ---------------");
882 st->cr();
883
884 // STEP("(printing number of OutOfMemoryError and StackOverflow exceptions)")
885
886 if (Exceptions::has_exception_counts()) {
887 st->print_cr("OutOfMemory and StackOverflow Exception counts:");
888 Exceptions::print_exception_counts_on_error(st);
889 st->cr();
890 }
891
892 // STEP("(printing compressed oops mode")
893
894 if (UseCompressedOops) {
895 Universe::print_compressed_oops_mode(st);
896 if (UseCompressedClassPointers) {
897 Metaspace::print_compressed_class_space(st);
898 }
899 st->cr();
900 }
901
902 // STEP("(printing heap information)")
903
904 if (Universe::is_fully_initialized()) {
905 Universe::heap()->print_on_error(st);
906 st->cr();
907 st->print_cr("Polling page: " INTPTR_FORMAT, p2i(os::get_polling_page()));
908 st->cr();
909 }
910
911 // STEP("(printing code cache information)")
912
913 if (Universe::is_fully_initialized()) {
914 // print code cache information before vm abort
915 CodeCache::print_summary(st);
916 st->cr();
917 }
918
919 // STEP("(printing ring buffers)")
920
921 Events::print_all(st);
922 st->cr();
923
924 // STEP("(printing dynamic libraries)")
925
926 // dynamic libraries, or memory map
927 os::print_dll_info(st);
928 st->cr();
929
930 // STEP("(printing VM options)")
931
932 // VM options
933 Arguments::print_on(st);
934 st->cr();
935
936 // STEP("(printing warning if internal testing API used)")
937
938 if (WhiteBox::used()) {
939 st->print_cr("Unsupported internal testing APIs have been used.");
940 st->cr();
941 }
942
943 // STEP("(printing all environment variables)")
944
945 os::print_environment_variables(st, env_list);
946 st->cr();
947
948 // STEP("(printing signal handlers)")
949
950 os::print_signal_handlers(st, buf, sizeof(buf));
951 st->cr();
952
953 // STEP("(Native Memory Tracking)")
954
955 MemTracker::error_report(st);
956
957 // STEP("(printing system)")
958
959 st->cr();
960 st->print_cr("--------------- S Y S T E M ---------------");
961 st->cr();
962
963 // STEP("(printing OS information)")
964
965 os::print_os_info(st);
966 st->cr();
967
968 // STEP("(printing CPU info)")
969
970 os::print_cpu_info(st, buf, sizeof(buf));
971 st->cr();
972
973 // STEP("(printing memory info)")
974
975 os::print_memory_info(st);
976 st->cr();
977
978 // STEP("(printing internal vm info)")
979
980 st->print_cr("vm_info: %s", Abstract_VM_Version::internal_vm_info_string());
981 st->cr();
982
983 // print a defined marker to show that error handling finished correctly.
984 // STEP("(printing end marker)")
985
986 st->print_cr("END.");
987 }
988
989 volatile intptr_t VMError::first_error_tid = -1;
990
991 // An error could happen before tty is initialized or after it has been
992 // destroyed. Here we use a very simple unbuffered fdStream for printing.
993 // Only out.print_raw() and out.print_raw_cr() should be used, as other
994 // printing methods need to allocate large buffer on stack. To format a
995 // string, use jio_snprintf() with a static buffer or use staticBufferStream.
996 fdStream VMError::out(defaultStream::output_fd());
997 fdStream VMError::log; // error log used by VMError::report_and_die()
998
999 /** Expand a pattern into a buffer starting at pos and open a file using constructed path */
1000 static int expand_and_open(const char* pattern, char* buf, size_t buflen, size_t pos) {
1001 int fd = -1;
1002 if (Arguments::copy_expand_pid(pattern, strlen(pattern), &buf[pos], buflen - pos)) {
1003 // the O_EXCL flag will cause the open to fail if the file exists
1004 fd = open(buf, O_RDWR | O_CREAT | O_EXCL, 0666);
1005 }
1006 return fd;
1007 }
1008
1009 /**
1010 * Construct file name for a log file and return it's file descriptor.
1011 * Name and location depends on pattern, default_pattern params and access
1012 * permissions.
1013 */
1014 static int prepare_log_file(const char* pattern, const char* default_pattern, char* buf, size_t buflen) {
1015 int fd = -1;
1016
1017 // If possible, use specified pattern to construct log file name
1018 if (pattern != NULL) {
1019 fd = expand_and_open(pattern, buf, buflen, 0);
1020 }
1021
1022 // Either user didn't specify, or the user's location failed,
1023 // so use the default name in the current directory
1024 if (fd == -1) {
1025 const char* cwd = os::get_current_directory(buf, buflen);
1026 if (cwd != NULL) {
1027 size_t pos = strlen(cwd);
1028 int fsep_len = jio_snprintf(&buf[pos], buflen-pos, "%s", os::file_separator());
1029 pos += fsep_len;
1030 if (fsep_len > 0) {
1031 fd = expand_and_open(default_pattern, buf, buflen, pos);
1032 }
1033 }
1034 }
1035
1036 // try temp directory if it exists.
1037 if (fd == -1) {
1038 const char* tmpdir = os::get_temp_directory();
1039 if (tmpdir != NULL && strlen(tmpdir) > 0) {
1040 int pos = jio_snprintf(buf, buflen, "%s%s", tmpdir, os::file_separator());
1041 if (pos > 0) {
1042 fd = expand_and_open(default_pattern, buf, buflen, pos);
1043 }
1044 }
1045 }
1046
1047 return fd;
1048 }
1049
1050 int VMError::_id;
1051 const char* VMError::_message;
1052 char VMError::_detail_msg[1024];
1053 Thread* VMError::_thread;
1054 address VMError::_pc;
1055 void* VMError::_siginfo;
1056 void* VMError::_context;
1057 const char* VMError::_filename;
1058 int VMError::_lineno;
1059 size_t VMError::_size;
1060
1061 void VMError::report_and_die(Thread* thread, unsigned int sig, address pc, void* siginfo,
1062 void* context, const char* detail_fmt, ...)
1063 {
1064 va_list detail_args;
1065 va_start(detail_args, detail_fmt);
1066 report_and_die(sig, NULL, detail_fmt, detail_args, thread, pc, siginfo, context, NULL, 0, 0);
1067 va_end(detail_args);
1068 }
1069
1070 void VMError::report_and_die(Thread* thread, unsigned int sig, address pc, void* siginfo, void* context)
1071 {
1072 report_and_die(thread, sig, pc, siginfo, context, "%s", "");
1073 }
1074
1075 void VMError::report_and_die(const char* message, const char* detail_fmt, ...)
1076 {
1077 va_list detail_args;
1078 va_start(detail_args, detail_fmt);
1079 report_and_die(INTERNAL_ERROR, message, detail_fmt, detail_args, NULL, NULL, NULL, NULL, NULL, 0, 0);
1080 va_end(detail_args);
1081 }
1082
1083 void VMError::report_and_die(const char* message)
1084 {
1085 report_and_die(message, "%s", "");
1086 }
1087
1088 void VMError::report_and_die(Thread* thread, const char* filename, int lineno, const char* message,
1089 const char* detail_fmt, va_list detail_args)
1090 {
1091 report_and_die(INTERNAL_ERROR, message, detail_fmt, detail_args, thread, NULL, NULL, NULL, filename, lineno, 0);
1092 }
1093
1094 void VMError::report_and_die(Thread* thread, const char* filename, int lineno, size_t size,
1095 VMErrorType vm_err_type, const char* detail_fmt, va_list detail_args) {
1096 report_and_die(vm_err_type, NULL, detail_fmt, detail_args, thread, NULL, NULL, NULL, filename, lineno, size);
1097 }
1098
1099 void VMError::report_and_die(int id, const char* message, const char* detail_fmt, va_list detail_args,
1100 Thread* thread, address pc, void* siginfo, void* context, const char* filename,
1101 int lineno, size_t size)
1102 {
1103 // Don't allocate large buffer on stack
1104 static char buffer[O_BUFLEN];
1105
1106 // How many errors occurred in error handler when reporting first_error.
1107 static int recursive_error_count;
1108
1109 // We will first print a brief message to standard out (verbose = false),
1110 // then save detailed information in log file (verbose = true).
1111 static bool out_done = false; // done printing to standard out
1112 static bool log_done = false; // done saving error log
1113 static bool transmit_report_done = false; // done error reporting
1114
1115 if (SuppressFatalErrorMessage) {
1116 os::abort(CreateCoredumpOnCrash);
1117 }
1118 intptr_t mytid = os::current_thread_id();
1119 if (first_error_tid == -1 &&
1120 Atomic::cmpxchg_ptr(mytid, &first_error_tid, -1) == -1) {
1121
1122 _id = id;
1123 _message = message;
1124 _thread = thread;
1125 _pc = pc;
1126 _siginfo = siginfo;
1127 _context = context;
1128 _filename = filename;
1129 _lineno = lineno;
1130 _size = size;
1131 jio_vsnprintf(_detail_msg, sizeof(_detail_msg), detail_fmt, detail_args);
1132
1133 // first time
1134 set_error_reported();
1135
1136 if (ShowMessageBoxOnError || PauseAtExit) {
1137 show_message_box(buffer, sizeof(buffer));
1138
1139 // User has asked JVM to abort. Reset ShowMessageBoxOnError so the
1140 // WatcherThread can kill JVM if the error handler hangs.
1141 ShowMessageBoxOnError = false;
1142 }
1143
1144 os::check_dump_limit(buffer, sizeof(buffer));
1145
1146 // reset signal handlers or exception filter; make sure recursive crashes
1147 // are handled properly.
1148 reset_signal_handlers();
1149
1150 } else {
1151 // If UseOsErrorReporting we call this for each level of the call stack
1152 // while searching for the exception handler. Only the first level needs
1153 // to be reported.
1154 if (UseOSErrorReporting && log_done) return;
1155
1156 // This is not the first error, see if it happened in a different thread
1157 // or in the same thread during error reporting.
1158 if (first_error_tid != mytid) {
1159 char msgbuf[64];
1160 jio_snprintf(msgbuf, sizeof(msgbuf),
1161 "[thread " INTX_FORMAT " also had an error]",
1162 mytid);
1163 out.print_raw_cr(msgbuf);
1164
1165 // error reporting is not MT-safe, block current thread
1166 os::infinite_sleep();
1167
1168 } else {
1169 if (recursive_error_count++ > 30) {
1170 out.print_raw_cr("[Too many errors, abort]");
1171 os::die();
1172 }
1173
1174 jio_snprintf(buffer, sizeof(buffer),
1175 "[error occurred during error reporting %s, id 0x%x]",
1176 _current_step_info, _id);
1177 if (log.is_open()) {
1178 log.cr();
1179 log.print_raw_cr(buffer);
1180 log.cr();
1181 } else {
1182 out.cr();
1183 out.print_raw_cr(buffer);
1184 out.cr();
1185 }
1186 }
1187 }
1188
1189 // print to screen
1190 if (!out_done) {
1191 staticBufferStream sbs(buffer, sizeof(buffer), &out);
1192 report(&sbs, false);
1193
1194 out_done = true;
1195
1196 _current_step = 0;
1197 _current_step_info = "";
1198 }
1199
1200 // print to error log file
1201 if (!log_done) {
1202 // see if log file is already open
1203 if (!log.is_open()) {
1204 // open log file
1205 int fd = prepare_log_file(ErrorFile, "hs_err_pid%p.log", buffer, sizeof(buffer));
1206 if (fd != -1) {
1207 out.print_raw("# An error report file with more information is saved as:\n# ");
1208 out.print_raw_cr(buffer);
1209
1210 log.set_fd(fd);
1211 } else {
1212 out.print_raw_cr("# Can not save log file, dump to screen..");
1213 log.set_fd(defaultStream::output_fd());
1214 /* Error reporting currently needs dumpfile.
1215 * Maybe implement direct streaming in the future.*/
1216 transmit_report_done = true;
1217 }
1218 }
1219
1220 staticBufferStream sbs(buffer, O_BUFLEN, &log);
1221 report(&sbs, true);
1222 _current_step = 0;
1223 _current_step_info = "";
1224
1225 // Run error reporting to determine whether or not to report the crash.
1226 if (!transmit_report_done && should_report_bug(_id)) {
1227 transmit_report_done = true;
1228 const int fd2 = ::dup(log.fd());
1229 FILE* const hs_err = ::fdopen(fd2, "r");
1230 if (NULL != hs_err) {
1231 ErrorReporter er;
1232 er.call(hs_err, buffer, O_BUFLEN);
1233 }
1234 ::fclose(hs_err);
1235 }
1236
1237 if (log.fd() != defaultStream::output_fd()) {
1238 close(log.fd());
1239 }
1240
1241 log.set_fd(-1);
1242 log_done = true;
1243 }
1244
1245 static bool skip_replay = ReplayCompiles; // Do not overwrite file during replay
1246 if (DumpReplayDataOnError && _thread && _thread->is_Compiler_thread() && !skip_replay) {
1247 skip_replay = true;
1248 ciEnv* env = ciEnv::current();
1249 if (env != NULL) {
1250 int fd = prepare_log_file(ReplayDataFile, "replay_pid%p.log", buffer, sizeof(buffer));
1251 if (fd != -1) {
1252 FILE* replay_data_file = os::open(fd, "w");
1253 if (replay_data_file != NULL) {
1254 fileStream replay_data_stream(replay_data_file, /*need_close=*/true);
1255 env->dump_replay_data_unsafe(&replay_data_stream);
1256 out.print_raw("#\n# Compiler replay data is saved as:\n# ");
1257 out.print_raw_cr(buffer);
1258 } else {
1259 out.print_raw("#\n# Can't open file to dump replay data. Error: ");
1260 out.print_raw_cr(strerror(os::get_last_error()));
1261 }
1262 }
1263 }
1264 }
1265
1266 static bool skip_bug_url = !should_report_bug(_id);
1267 if (!skip_bug_url) {
1268 skip_bug_url = true;
1269
1270 out.print_raw_cr("#");
1271 print_bug_submit_message(&out, _thread);
1272 }
1273
1274 static bool skip_OnError = false;
1275 if (!skip_OnError && OnError && OnError[0]) {
1276 skip_OnError = true;
1277
1278 // Flush output and finish logs before running OnError commands.
1279 ostream_abort();
1280
1281 out.print_raw_cr("#");
1282 out.print_raw ("# -XX:OnError=\"");
1283 out.print_raw (OnError);
1284 out.print_raw_cr("\"");
1285
1286 char* cmd;
1287 const char* ptr = OnError;
1288 while ((cmd = next_OnError_command(buffer, sizeof(buffer), &ptr)) != NULL){
1289 out.print_raw ("# Executing ");
1290 #if defined(LINUX) || defined(_ALLBSD_SOURCE)
1291 out.print_raw ("/bin/sh -c ");
1292 #elif defined(SOLARIS)
1293 out.print_raw ("/usr/bin/sh -c ");
1294 #endif
1295 out.print_raw ("\"");
1296 out.print_raw (cmd);
1297 out.print_raw_cr("\" ...");
1298
1299 if (os::fork_and_exec(cmd) < 0) {
1300 out.print_cr("os::fork_and_exec failed: %s (%d)", strerror(errno), errno);
1301 }
1302 }
1303
1304 // done with OnError
1305 OnError = NULL;
1306 }
1307
1308 if (!UseOSErrorReporting) {
1309 // os::abort() will call abort hooks, try it first.
1310 static bool skip_os_abort = false;
1311 if (!skip_os_abort) {
1312 skip_os_abort = true;
1313 bool dump_core = should_report_bug(_id);
1314 os::abort(dump_core && CreateCoredumpOnCrash, _siginfo, _context);
1315 }
1316
1317 // if os::abort() doesn't abort, try os::die();
1318 os::die();
1319 }
1320 }
1321
1322 /*
1323 * OnOutOfMemoryError scripts/commands executed while VM is a safepoint - this
1324 * ensures utilities such as jmap can observe the process is a consistent state.
1325 */
1326 class VM_ReportJavaOutOfMemory : public VM_Operation {
1327 private:
1328 const char* _message;
1329 public:
1330 VM_ReportJavaOutOfMemory(const char* message) { _message = message; }
1331 VMOp_Type type() const { return VMOp_ReportJavaOutOfMemory; }
1332 void doit();
1333 };
1334
1335 void VM_ReportJavaOutOfMemory::doit() {
1336 // Don't allocate large buffer on stack
1337 static char buffer[O_BUFLEN];
1338
1339 tty->print_cr("#");
1340 tty->print_cr("# java.lang.OutOfMemoryError: %s", _message);
1341 tty->print_cr("# -XX:OnOutOfMemoryError=\"%s\"", OnOutOfMemoryError);
1342
1343 // make heap parsability
1344 Universe::heap()->ensure_parsability(false); // no need to retire TLABs
1345
1346 char* cmd;
1347 const char* ptr = OnOutOfMemoryError;
1348 while ((cmd = next_OnError_command(buffer, sizeof(buffer), &ptr)) != NULL){
1349 tty->print("# Executing ");
1350 #if defined(LINUX)
1351 tty->print ("/bin/sh -c ");
1352 #elif defined(SOLARIS)
1353 tty->print ("/usr/bin/sh -c ");
1354 #endif
1355 tty->print_cr("\"%s\"...", cmd);
1356
1357 if (os::fork_and_exec(cmd) < 0) {
1358 tty->print_cr("os::fork_and_exec failed: %s (%d)", strerror(errno), errno);
1359 }
1360 }
1361 }
1362
1363 void VMError::report_java_out_of_memory(const char* message) {
1364 if (OnOutOfMemoryError && OnOutOfMemoryError[0]) {
1365 MutexLocker ml(Heap_lock);
1366 VM_ReportJavaOutOfMemory op(message);
1367 VMThread::execute(&op);
1368 }
1369 }
1370
1371 void VMError::show_message_box(char *buf, int buflen) {
1372 bool yes;
1373 do {
1374 error_string(buf, buflen);
1375 yes = os::start_debugging(buf,buflen);
1376 } while (yes);
1377 }