Wed, 03 Jul 2019 20:42:37 +0800
Merge
1 /*
2 * Copyright (c) 2003, 2019, 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 /*
26 * This file has been modified by Loongson Technology in 2018. These
27 * modifications are Copyright (c) 2018 Loongson Technology, and are made
28 * available on the same license terms set forth above.
29 *
30 */
32 #include <fcntl.h>
33 #include "precompiled.hpp"
34 #include "compiler/compileBroker.hpp"
35 #include "gc_interface/collectedHeap.hpp"
36 #include "prims/whitebox.hpp"
37 #include "runtime/arguments.hpp"
38 #include "runtime/frame.inline.hpp"
39 #include "runtime/init.hpp"
40 #include "runtime/os.hpp"
41 #include "runtime/thread.inline.hpp"
42 #include "runtime/vmThread.hpp"
43 #include "runtime/vm_operations.hpp"
44 #include "services/memTracker.hpp"
45 #include "utilities/debug.hpp"
46 #include "utilities/decoder.hpp"
47 #include "utilities/defaultStream.hpp"
48 #include "utilities/errorReporter.hpp"
49 #include "utilities/events.hpp"
50 #include "utilities/top.hpp"
51 #include "utilities/vmError.hpp"
53 PRAGMA_FORMAT_MUTE_WARNINGS_FOR_GCC
55 // List of environment variables that should be reported in error log file.
56 const char *env_list[] = {
57 // All platforms
58 "JAVA_HOME", "JRE_HOME", "JAVA_TOOL_OPTIONS", "_JAVA_OPTIONS", "CLASSPATH",
59 "JAVA_COMPILER", "PATH", "USERNAME",
61 // Env variables that are defined on Solaris/Linux/BSD
62 "LD_LIBRARY_PATH", "LD_PRELOAD", "SHELL", "DISPLAY",
63 "HOSTTYPE", "OSTYPE", "ARCH", "MACHTYPE",
65 // defined on Linux
66 "LD_ASSUME_KERNEL", "_JAVA_SR_SIGNUM",
68 // defined on Darwin
69 "DYLD_LIBRARY_PATH", "DYLD_FALLBACK_LIBRARY_PATH",
70 "DYLD_FRAMEWORK_PATH", "DYLD_FALLBACK_FRAMEWORK_PATH",
71 "DYLD_INSERT_LIBRARIES",
73 // defined on Windows
74 "OS", "PROCESSOR_IDENTIFIER", "_ALT_JAVA_HOME_DIR",
76 (const char *)0
77 };
79 // Fatal error handler for internal errors and crashes.
80 //
81 // The default behavior of fatal error handler is to print a brief message
82 // to standard out (defaultStream::output_fd()), then save detailed information
83 // into an error report file (hs_err_pid<pid>.log) and abort VM. If multiple
84 // threads are having troubles at the same time, only one error is reported.
85 // The thread that is reporting error will abort VM when it is done, all other
86 // threads are blocked forever inside report_and_die().
88 // Constructor for crashes
89 VMError::VMError(Thread* thread, unsigned int sig, address pc, void* siginfo, void* context) {
90 _thread = thread;
91 _id = sig;
92 _pc = pc;
93 _siginfo = siginfo;
94 _context = context;
96 _verbose = false;
97 _current_step = 0;
98 _current_step_info = NULL;
100 _message = NULL;
101 _detail_msg = NULL;
102 _filename = NULL;
103 _lineno = 0;
105 _size = 0;
106 }
108 // Constructor for internal errors
109 VMError::VMError(Thread* thread, const char* filename, int lineno,
110 const char* message, const char * detail_msg)
111 {
112 _thread = thread;
113 _id = INTERNAL_ERROR; // Value that's not an OS exception/signal
114 _filename = filename;
115 _lineno = lineno;
116 _message = message;
117 _detail_msg = detail_msg;
119 _verbose = false;
120 _current_step = 0;
121 _current_step_info = NULL;
123 _pc = NULL;
124 _siginfo = NULL;
125 _context = NULL;
127 _size = 0;
128 }
130 // Constructor for OOM errors
131 VMError::VMError(Thread* thread, const char* filename, int lineno, size_t size,
132 VMErrorType vm_err_type, const char* message) {
133 _thread = thread;
134 _id = vm_err_type; // Value that's not an OS exception/signal
135 _filename = filename;
136 _lineno = lineno;
137 _message = message;
138 _detail_msg = NULL;
140 _verbose = false;
141 _current_step = 0;
142 _current_step_info = NULL;
144 _pc = NULL;
145 _siginfo = NULL;
146 _context = NULL;
148 _size = size;
149 }
152 // Constructor for non-fatal errors
153 VMError::VMError(const char* message) {
154 _thread = NULL;
155 _id = INTERNAL_ERROR; // Value that's not an OS exception/signal
156 _filename = NULL;
157 _lineno = 0;
158 _message = message;
159 _detail_msg = NULL;
161 _verbose = false;
162 _current_step = 0;
163 _current_step_info = NULL;
165 _pc = NULL;
166 _siginfo = NULL;
167 _context = NULL;
169 _size = 0;
170 }
172 // -XX:OnError=<string>, where <string> can be a list of commands, separated
173 // by ';'. "%p" is replaced by current process id (pid); "%%" is replaced by
174 // a single "%". Some examples:
175 //
176 // -XX:OnError="pmap %p" // show memory map
177 // -XX:OnError="gcore %p; dbx - %p" // dump core and launch debugger
178 // -XX:OnError="cat hs_err_pid%p.log | mail my_email@sun.com"
179 // -XX:OnError="kill -9 %p" // ?#!@#
181 // A simple parser for -XX:OnError, usage:
182 // ptr = OnError;
183 // while ((cmd = next_OnError_command(buffer, sizeof(buffer), &ptr) != NULL)
184 // ... ...
185 static char* next_OnError_command(char* buf, int buflen, const char** ptr) {
186 if (ptr == NULL || *ptr == NULL) return NULL;
188 const char* cmd = *ptr;
190 // skip leading blanks or ';'
191 while (*cmd == ' ' || *cmd == ';') cmd++;
193 if (*cmd == '\0') return NULL;
195 const char * cmdend = cmd;
196 while (*cmdend != '\0' && *cmdend != ';') cmdend++;
198 Arguments::copy_expand_pid(cmd, cmdend - cmd, buf, buflen);
200 *ptr = (*cmdend == '\0' ? cmdend : cmdend + 1);
201 return buf;
202 }
205 static void print_bug_submit_message(outputStream *out, Thread *thread) {
206 if (out == NULL) return;
207 out->print_raw_cr("# If you would like to submit a bug report, please visit:");
208 out->print_raw ("# ");
209 out->print_raw_cr(Arguments::java_vendor_url_bug());
210 // If the crash is in native code, encourage user to submit a bug to the
211 // provider of that code.
212 if (thread && thread->is_Java_thread() &&
213 !thread->is_hidden_from_external_view()) {
214 JavaThread* jt = (JavaThread*)thread;
215 if (jt->thread_state() == _thread_in_native) {
216 out->print_cr("# The crash happened outside the Java Virtual Machine in native code.\n# See problematic frame for where to report the bug.");
217 }
218 }
219 out->print_raw_cr("#");
220 }
222 bool VMError::coredump_status;
223 char VMError::coredump_message[O_BUFLEN];
225 void VMError::report_coredump_status(const char* message, bool status) {
226 coredump_status = status;
227 strncpy(coredump_message, message, sizeof(coredump_message));
228 coredump_message[sizeof(coredump_message)-1] = 0;
229 }
232 // Return a string to describe the error
233 char* VMError::error_string(char* buf, int buflen) {
234 char signame_buf[64];
235 const char *signame = os::exception_name(_id, signame_buf, sizeof(signame_buf));
237 if (signame) {
238 jio_snprintf(buf, buflen,
239 "%s (0x%x) at pc=" PTR_FORMAT ", pid=%d, tid=" INTPTR_FORMAT,
240 signame, _id, _pc,
241 os::current_process_id(), os::current_thread_id());
242 } else if (_filename != NULL && _lineno > 0) {
243 // skip directory names
244 char separator = os::file_separator()[0];
245 const char *p = strrchr(_filename, separator);
246 int n = jio_snprintf(buf, buflen,
247 "Internal Error at %s:%d, pid=%d, tid=" INTPTR_FORMAT,
248 p ? p + 1 : _filename, _lineno,
249 os::current_process_id(), os::current_thread_id());
250 if (n >= 0 && n < buflen && _message) {
251 if (_detail_msg) {
252 jio_snprintf(buf + n, buflen - n, "%s%s: %s",
253 os::line_separator(), _message, _detail_msg);
254 } else {
255 jio_snprintf(buf + n, buflen - n, "%sError: %s",
256 os::line_separator(), _message);
257 }
258 }
259 } else {
260 jio_snprintf(buf, buflen,
261 "Internal Error (0x%x), pid=%d, tid=" INTPTR_FORMAT,
262 _id, os::current_process_id(), os::current_thread_id());
263 }
265 return buf;
266 }
268 void VMError::print_stack_trace(outputStream* st, JavaThread* jt,
269 char* buf, int buflen, bool verbose) {
270 #ifdef ZERO
271 if (jt->zero_stack()->sp() && jt->top_zero_frame()) {
272 // StackFrameStream uses the frame anchor, which may not have
273 // been set up. This can be done at any time in Zero, however,
274 // so if it hasn't been set up then we just set it up now and
275 // clear it again when we're done.
276 bool has_last_Java_frame = jt->has_last_Java_frame();
277 if (!has_last_Java_frame)
278 jt->set_last_Java_frame();
279 st->print("Java frames:");
281 // If the top frame is a Shark frame and the frame anchor isn't
282 // set up then it's possible that the information in the frame
283 // is garbage: it could be from a previous decache, or it could
284 // simply have never been written. So we print a warning...
285 StackFrameStream sfs(jt);
286 if (!has_last_Java_frame && !sfs.is_done()) {
287 if (sfs.current()->zeroframe()->is_shark_frame()) {
288 st->print(" (TOP FRAME MAY BE JUNK)");
289 }
290 }
291 st->cr();
293 // Print the frames
294 for(int i = 0; !sfs.is_done(); sfs.next(), i++) {
295 sfs.current()->zero_print_on_error(i, st, buf, buflen);
296 st->cr();
297 }
299 // Reset the frame anchor if necessary
300 if (!has_last_Java_frame)
301 jt->reset_last_Java_frame();
302 }
303 #else
304 if (jt->has_last_Java_frame()) {
305 st->print_cr("Java frames: (J=compiled Java code, j=interpreted, Vv=VM code)");
306 for(StackFrameStream sfs(jt); !sfs.is_done(); sfs.next()) {
307 sfs.current()->print_on_error(st, buf, buflen, verbose);
308 st->cr();
309 }
310 }
311 #endif // ZERO
312 }
314 static void print_oom_reasons(outputStream* st) {
315 st->print_cr("# Possible reasons:");
316 st->print_cr("# The system is out of physical RAM or swap space");
317 if (UseCompressedOops) {
318 st->print_cr("# The process is running with CompressedOops enabled, and the Java Heap may be blocking the growth of the native heap");
319 }
320 if (LogBytesPerWord == 2) {
321 st->print_cr("# In 32 bit mode, the process size limit was hit");
322 }
323 st->print_cr("# Possible solutions:");
324 st->print_cr("# Reduce memory load on the system");
325 st->print_cr("# Increase physical memory or swap space");
326 st->print_cr("# Check if swap backing store is full");
327 if (LogBytesPerWord == 2) {
328 st->print_cr("# Use 64 bit Java on a 64 bit OS");
329 }
330 st->print_cr("# Decrease Java heap size (-Xmx/-Xms)");
331 st->print_cr("# Decrease number of Java threads");
332 st->print_cr("# Decrease Java thread stack sizes (-Xss)");
333 st->print_cr("# Set larger code cache with -XX:ReservedCodeCacheSize=");
334 if (UseCompressedOops) {
335 switch (Universe::narrow_oop_mode()) {
336 case Universe::UnscaledNarrowOop:
337 st->print_cr("# JVM is running with Unscaled Compressed Oops mode in which the Java heap is");
338 st->print_cr("# placed in the first 4GB address space. The Java Heap base address is the");
339 st->print_cr("# maximum limit for the native heap growth. Please use -XX:HeapBaseMinAddress");
340 st->print_cr("# to set the Java Heap base and to place the Java Heap above 4GB virtual address.");
341 break;
342 case Universe::ZeroBasedNarrowOop:
343 st->print_cr("# JVM is running with Zero Based Compressed Oops mode in which the Java heap is");
344 st->print_cr("# placed in the first 32GB address space. The Java Heap base address is the");
345 st->print_cr("# maximum limit for the native heap growth. Please use -XX:HeapBaseMinAddress");
346 st->print_cr("# to set the Java Heap base and to place the Java Heap above 32GB virtual address.");
347 break;
348 default:
349 break;
350 }
351 }
352 st->print_cr("# This output file may be truncated or incomplete.");
353 }
355 // This is the main function to report a fatal error. Only one thread can
356 // call this function, so we don't need to worry about MT-safety. But it's
357 // possible that the error handler itself may crash or die on an internal
358 // error, for example, when the stack/heap is badly damaged. We must be
359 // able to handle recursive errors that happen inside error handler.
360 //
361 // Error reporting is done in several steps. If a crash or internal error
362 // occurred when reporting an error, the nested signal/exception handler
363 // can skip steps that are already (or partially) done. Error reporting will
364 // continue from the next step. This allows us to retrieve and print
365 // information that may be unsafe to get after a fatal error. If it happens,
366 // you may find nested report_and_die() frames when you look at the stack
367 // in a debugger.
368 //
369 // In general, a hang in error handler is much worse than a crash or internal
370 // error, as it's harder to recover from a hang. Deadlock can happen if we
371 // try to grab a lock that is already owned by current thread, or if the
372 // owner is blocked forever (e.g. in os::infinite_sleep()). If possible, the
373 // error handler and all the functions it called should avoid grabbing any
374 // lock. An important thing to notice is that memory allocation needs a lock.
375 //
376 // We should avoid using large stack allocated buffers. Many errors happen
377 // when stack space is already low. Making things even worse is that there
378 // could be nested report_and_die() calls on stack (see above). Only one
379 // thread can report error, so large buffers are statically allocated in data
380 // segment.
382 void VMError::report(outputStream* st) {
383 # define BEGIN if (_current_step == 0) { _current_step = 1;
384 # define STEP(n, s) } if (_current_step < n) { _current_step = n; _current_step_info = s;
385 # define END }
387 // don't allocate large buffer on stack
388 static char buf[O_BUFLEN];
390 BEGIN
392 STEP(10, "(printing fatal error message)")
394 st->print_cr("#");
395 if (should_report_bug(_id)) {
396 st->print_cr("# A fatal error has been detected by the Java Runtime Environment:");
397 } else {
398 st->print_cr("# There is insufficient memory for the Java "
399 "Runtime Environment to continue.");
400 }
402 STEP(15, "(printing type of error)")
404 switch(_id) {
405 case OOM_MALLOC_ERROR:
406 case OOM_MMAP_ERROR:
407 if (_size) {
408 st->print("# Native memory allocation ");
409 st->print((_id == (int)OOM_MALLOC_ERROR) ? "(malloc) failed to allocate " :
410 "(mmap) failed to map ");
411 jio_snprintf(buf, sizeof(buf), SIZE_FORMAT, _size);
412 st->print("%s", buf);
413 st->print(" bytes");
414 if (_message != NULL) {
415 st->print(" for ");
416 st->print("%s", _message);
417 }
418 st->cr();
419 } else {
420 if (_message != NULL)
421 st->print("# ");
422 st->print_cr("%s", _message);
423 }
424 // In error file give some solutions
425 if (_verbose) {
426 print_oom_reasons(st);
427 } else {
428 return; // that's enough for the screen
429 }
430 break;
431 case INTERNAL_ERROR:
432 default:
433 break;
434 }
436 STEP(20, "(printing exception/signal name)")
438 st->print_cr("#");
439 st->print("# ");
440 // Is it an OS exception/signal?
441 if (os::exception_name(_id, buf, sizeof(buf))) {
442 st->print("%s", buf);
443 st->print(" (0x%x)", _id); // signal number
444 st->print(" at pc=" PTR_FORMAT, _pc);
445 } else {
446 if (should_report_bug(_id)) {
447 st->print("Internal Error");
448 } else {
449 st->print("Out of Memory Error");
450 }
451 if (_filename != NULL && _lineno > 0) {
452 #ifdef PRODUCT
453 // In product mode chop off pathname?
454 char separator = os::file_separator()[0];
455 const char *p = strrchr(_filename, separator);
456 const char *file = p ? p+1 : _filename;
457 #else
458 const char *file = _filename;
459 #endif
460 size_t len = strlen(file);
461 size_t buflen = sizeof(buf);
463 strncpy(buf, file, buflen);
464 if (len + 10 < buflen) {
465 sprintf(buf + len, ":%d", _lineno);
466 }
467 st->print(" (%s)", buf);
468 } else {
469 st->print(" (0x%x)", _id);
470 }
471 }
473 STEP(30, "(printing current thread and pid)")
475 // process id, thread id
476 st->print(", pid=%d", os::current_process_id());
477 st->print(", tid=" INTPTR_FORMAT, os::current_thread_id());
478 st->cr();
480 STEP(40, "(printing error message)")
482 if (should_report_bug(_id)) { // already printed the message.
483 // error message
484 if (_detail_msg) {
485 st->print_cr("# %s: %s", _message ? _message : "Error", _detail_msg);
486 } else if (_message) {
487 st->print_cr("# Error: %s", _message);
488 }
489 }
491 STEP(50, "(printing Java version string)")
493 // VM version
494 st->print_cr("#");
495 JDK_Version::current().to_string(buf, sizeof(buf));
496 const char* runtime_name = JDK_Version::runtime_name() != NULL ?
497 JDK_Version::runtime_name() : "";
498 const char* runtime_version = JDK_Version::runtime_version() != NULL ?
499 JDK_Version::runtime_version() : "";
500 #ifdef LOONGSON_RUNTIME_NAME
501 const char* loongson_runtime_name_and_version = LOONGSON_RUNTIME_NAME;
502 #else
503 const char* loongson_runtime_name_and_version = "";
504 #endif
505 st->print_cr("# JRE version: %s (%s) (build %s) (%s)", runtime_name, buf, runtime_version, loongson_runtime_name_and_version);
506 st->print_cr("# Java VM: %s (%s %s %s %s)",
507 Abstract_VM_Version::vm_name(),
508 Abstract_VM_Version::vm_release(),
509 Abstract_VM_Version::vm_info_string(),
510 Abstract_VM_Version::vm_platform_string(),
511 UseCompressedOops ? "compressed oops" : ""
512 );
514 STEP(60, "(printing problematic frame)")
516 // Print current frame if we have a context (i.e. it's a crash)
517 if (_context) {
518 st->print_cr("# Problematic frame:");
519 st->print("# ");
520 frame fr = os::fetch_frame_from_context(_context);
521 fr.print_on_error(st, buf, sizeof(buf));
522 st->cr();
523 st->print_cr("#");
524 }
525 STEP(63, "(printing core file information)")
526 st->print("# ");
527 if (coredump_status) {
528 st->print("Core dump written. Default location: %s", coredump_message);
529 } else {
530 st->print("Failed to write core dump. %s", coredump_message);
531 }
532 st->cr();
533 st->print_cr("#");
535 STEP(65, "(printing bug submit message)")
537 if (should_report_bug(_id) && _verbose) {
538 print_bug_submit_message(st, _thread);
539 }
541 STEP(70, "(printing thread)" )
543 if (_verbose) {
544 st->cr();
545 st->print_cr("--------------- T H R E A D ---------------");
546 st->cr();
547 }
549 STEP(80, "(printing current thread)" )
551 // current thread
552 if (_verbose) {
553 if (_thread) {
554 st->print("Current thread (" PTR_FORMAT "): ", _thread);
555 _thread->print_on_error(st, buf, sizeof(buf));
556 st->cr();
557 } else {
558 st->print_cr("Current thread is native thread");
559 }
560 st->cr();
561 }
563 STEP(90, "(printing siginfo)" )
565 // signal no, signal code, address that caused the fault
566 if (_verbose && _siginfo) {
567 os::print_siginfo(st, _siginfo);
568 st->cr();
569 }
571 STEP(100, "(printing registers, top of stack, instructions near pc)")
573 // registers, top of stack, instructions near pc
574 if (_verbose && _context) {
575 os::print_context(st, _context);
576 st->cr();
577 }
579 STEP(105, "(printing register info)")
581 // decode register contents if possible
582 if (_verbose && _context && Universe::is_fully_initialized()) {
583 os::print_register_info(st, _context);
584 st->cr();
585 }
587 STEP(110, "(printing stack bounds)" )
589 if (_verbose) {
590 st->print("Stack: ");
592 address stack_top;
593 size_t stack_size;
595 if (_thread) {
596 stack_top = _thread->stack_base();
597 stack_size = _thread->stack_size();
598 } else {
599 stack_top = os::current_stack_base();
600 stack_size = os::current_stack_size();
601 }
603 address stack_bottom = stack_top - stack_size;
604 st->print("[" PTR_FORMAT "," PTR_FORMAT "]", stack_bottom, stack_top);
606 frame fr = _context ? os::fetch_frame_from_context(_context)
607 : os::current_frame();
609 if (fr.sp()) {
610 st->print(", sp=" PTR_FORMAT, fr.sp());
611 size_t free_stack_size = pointer_delta(fr.sp(), stack_bottom, 1024);
612 st->print(", free space=" SIZE_FORMAT "k", free_stack_size);
613 }
615 st->cr();
616 }
618 STEP(120, "(printing native stack)" )
620 if (_verbose) {
621 if (os::platform_print_native_stack(st, _context, buf, sizeof(buf))) {
622 // We have printed the native stack in platform-specific code
623 // Windows/x64 needs special handling.
624 } else {
625 frame fr = _context ? os::fetch_frame_from_context(_context)
626 : os::current_frame();
628 print_native_stack(st, fr, _thread, buf, sizeof(buf));
629 }
630 }
632 STEP(130, "(printing Java stack)" )
634 if (_verbose && _thread && _thread->is_Java_thread()) {
635 print_stack_trace(st, (JavaThread*)_thread, buf, sizeof(buf));
636 }
638 STEP(135, "(printing target Java thread stack)" )
640 // printing Java thread stack trace if it is involved in GC crash
641 if (_verbose && _thread && (_thread->is_Named_thread())) {
642 JavaThread* jt = ((NamedThread *)_thread)->processed_thread();
643 if (jt != NULL) {
644 st->print_cr("JavaThread " PTR_FORMAT " (nid = " UINTX_FORMAT ") was being processed", jt, jt->osthread()->thread_id());
645 print_stack_trace(st, jt, buf, sizeof(buf), true);
646 }
647 }
649 STEP(140, "(printing VM operation)" )
651 if (_verbose && _thread && _thread->is_VM_thread()) {
652 VMThread* t = (VMThread*)_thread;
653 VM_Operation* op = t->vm_operation();
654 if (op) {
655 op->print_on_error(st);
656 st->cr();
657 st->cr();
658 }
659 }
661 STEP(150, "(printing current compile task)" )
663 if (_verbose && _thread && _thread->is_Compiler_thread()) {
664 CompilerThread* t = (CompilerThread*)_thread;
665 if (t->task()) {
666 st->cr();
667 st->print_cr("Current CompileTask:");
668 t->task()->print_line_on_error(st, buf, sizeof(buf));
669 st->cr();
670 }
671 }
673 STEP(160, "(printing process)" )
675 if (_verbose) {
676 st->cr();
677 st->print_cr("--------------- P R O C E S S ---------------");
678 st->cr();
679 }
681 STEP(170, "(printing all threads)" )
683 // all threads
684 if (_verbose && _thread) {
685 Threads::print_on_error(st, _thread, buf, sizeof(buf));
686 st->cr();
687 }
689 STEP(175, "(printing VM state)" )
691 if (_verbose) {
692 // Safepoint state
693 st->print("VM state:");
695 if (SafepointSynchronize::is_synchronizing()) st->print("synchronizing");
696 else if (SafepointSynchronize::is_at_safepoint()) st->print("at safepoint");
697 else st->print("not at safepoint");
699 // Also see if error occurred during initialization or shutdown
700 if (!Universe::is_fully_initialized()) {
701 st->print(" (not fully initialized)");
702 } else if (VM_Exit::vm_exited()) {
703 st->print(" (shutting down)");
704 } else {
705 st->print(" (normal execution)");
706 }
707 st->cr();
708 st->cr();
709 }
711 STEP(180, "(printing owned locks on error)" )
713 // mutexes/monitors that currently have an owner
714 if (_verbose) {
715 print_owned_locks_on_error(st);
716 st->cr();
717 }
719 STEP(182, "(printing number of OutOfMemoryError and StackOverflow exceptions)")
721 if (_verbose && Exceptions::has_exception_counts()) {
722 st->print_cr("OutOfMemory and StackOverflow Exception counts:");
723 Exceptions::print_exception_counts_on_error(st);
724 st->cr();
725 }
727 STEP(185, "(printing compressed oops mode")
729 if (_verbose && UseCompressedOops) {
730 Universe::print_compressed_oops_mode(st);
731 if (UseCompressedClassPointers) {
732 Metaspace::print_compressed_class_space(st);
733 }
734 st->cr();
735 }
737 STEP(190, "(printing heap information)" )
739 if (_verbose && Universe::is_fully_initialized()) {
740 Universe::heap()->print_on_error(st);
741 st->cr();
743 st->print_cr("Polling page: " INTPTR_FORMAT, os::get_polling_page());
744 st->cr();
745 }
747 STEP(195, "(printing code cache information)" )
749 if (_verbose && Universe::is_fully_initialized()) {
750 // print code cache information before vm abort
751 CodeCache::print_summary(st);
752 st->cr();
753 }
755 STEP(200, "(printing ring buffers)" )
757 if (_verbose) {
758 Events::print_all(st);
759 st->cr();
760 }
762 STEP(205, "(printing dynamic libraries)" )
764 if (_verbose) {
765 // dynamic libraries, or memory map
766 os::print_dll_info(st);
767 st->cr();
768 }
770 STEP(210, "(printing VM options)" )
772 if (_verbose) {
773 // VM options
774 Arguments::print_on(st);
775 st->cr();
776 }
778 STEP(215, "(printing warning if internal testing API used)" )
780 if (WhiteBox::used()) {
781 st->print_cr("Unsupported internal testing APIs have been used.");
782 st->cr();
783 }
785 STEP(220, "(printing environment variables)" )
787 if (_verbose) {
788 os::print_environment_variables(st, env_list, buf, sizeof(buf));
789 st->cr();
790 }
792 STEP(225, "(printing signal handlers)" )
794 if (_verbose) {
795 os::print_signal_handlers(st, buf, sizeof(buf));
796 st->cr();
797 }
799 STEP(228, "(Native Memory Tracking)" )
800 if (_verbose) {
801 MemTracker::error_report(st);
802 }
804 STEP(230, "" )
806 if (_verbose) {
807 st->cr();
808 st->print_cr("--------------- S Y S T E M ---------------");
809 st->cr();
810 }
812 STEP(240, "(printing OS information)" )
814 if (_verbose) {
815 os::print_os_info(st);
816 st->cr();
817 }
819 STEP(250, "(printing CPU info)" )
820 if (_verbose) {
821 os::print_cpu_info(st);
822 st->cr();
823 }
825 STEP(260, "(printing memory info)" )
827 if (_verbose) {
828 os::print_memory_info(st);
829 st->cr();
830 }
832 STEP(270, "(printing internal vm info)" )
834 if (_verbose) {
835 st->print_cr("vm_info: %s", Abstract_VM_Version::internal_vm_info_string());
836 st->cr();
837 }
839 STEP(280, "(printing date and time)" )
841 if (_verbose) {
842 os::print_date_and_time(st, buf, sizeof(buf));
843 st->cr();
844 }
846 END
848 # undef BEGIN
849 # undef STEP
850 # undef END
851 }
853 VMError* volatile VMError::first_error = NULL;
854 volatile jlong VMError::first_error_tid = -1;
856 // An error could happen before tty is initialized or after it has been
857 // destroyed. Here we use a very simple unbuffered fdStream for printing.
858 // Only out.print_raw() and out.print_raw_cr() should be used, as other
859 // printing methods need to allocate large buffer on stack. To format a
860 // string, use jio_snprintf() with a static buffer or use staticBufferStream.
861 fdStream VMError::out(defaultStream::output_fd());
862 fdStream VMError::log; // error log used by VMError::report_and_die()
864 /** Expand a pattern into a buffer starting at pos and open a file using constructed path */
865 static int expand_and_open(const char* pattern, char* buf, size_t buflen, size_t pos) {
866 int fd = -1;
867 if (Arguments::copy_expand_pid(pattern, strlen(pattern), &buf[pos], buflen - pos)) {
868 // the O_EXCL flag will cause the open to fail if the file exists
869 fd = open(buf, O_RDWR | O_CREAT | O_EXCL, 0666);
870 }
871 return fd;
872 }
874 /**
875 * Construct file name for a log file and return it's file descriptor.
876 * Name and location depends on pattern, default_pattern params and access
877 * permissions.
878 */
879 static int prepare_log_file(const char* pattern, const char* default_pattern, char* buf, size_t buflen) {
880 int fd = -1;
882 // If possible, use specified pattern to construct log file name
883 if (pattern != NULL) {
884 fd = expand_and_open(pattern, buf, buflen, 0);
885 }
887 // Either user didn't specify, or the user's location failed,
888 // so use the default name in the current directory
889 if (fd == -1) {
890 const char* cwd = os::get_current_directory(buf, buflen);
891 if (cwd != NULL) {
892 size_t pos = strlen(cwd);
893 int fsep_len = jio_snprintf(&buf[pos], buflen-pos, "%s", os::file_separator());
894 pos += fsep_len;
895 if (fsep_len > 0) {
896 fd = expand_and_open(default_pattern, buf, buflen, pos);
897 }
898 }
899 }
901 // try temp directory if it exists.
902 if (fd == -1) {
903 const char* tmpdir = os::get_temp_directory();
904 if (tmpdir != NULL && strlen(tmpdir) > 0) {
905 int pos = jio_snprintf(buf, buflen, "%s%s", tmpdir, os::file_separator());
906 if (pos > 0) {
907 fd = expand_and_open(default_pattern, buf, buflen, pos);
908 }
909 }
910 }
912 return fd;
913 }
915 void VMError::report_and_die() {
916 // Don't allocate large buffer on stack
917 static char buffer[O_BUFLEN];
919 // How many errors occurred in error handler when reporting first_error.
920 static int recursive_error_count;
922 // We will first print a brief message to standard out (verbose = false),
923 // then save detailed information in log file (verbose = true).
924 static bool out_done = false; // done printing to standard out
925 static bool log_done = false; // done saving error log
926 static bool transmit_report_done = false; // done error reporting
928 if (SuppressFatalErrorMessage) {
929 os::abort();
930 }
931 jlong mytid = os::current_thread_id();
932 if (first_error == NULL &&
933 Atomic::cmpxchg_ptr(this, &first_error, NULL) == NULL) {
935 // first time
936 first_error_tid = mytid;
937 set_error_reported();
939 if (ShowMessageBoxOnError || PauseAtExit) {
940 show_message_box(buffer, sizeof(buffer));
942 // User has asked JVM to abort. Reset ShowMessageBoxOnError so the
943 // WatcherThread can kill JVM if the error handler hangs.
944 ShowMessageBoxOnError = false;
945 }
947 // Write a minidump on Windows, check core dump limits on Linux/Solaris
948 os::check_or_create_dump(_siginfo, _context, buffer, sizeof(buffer));
950 // reset signal handlers or exception filter; make sure recursive crashes
951 // are handled properly.
952 reset_signal_handlers();
954 } else {
955 // If UseOsErrorReporting we call this for each level of the call stack
956 // while searching for the exception handler. Only the first level needs
957 // to be reported.
958 if (UseOSErrorReporting && log_done) return;
960 // This is not the first error, see if it happened in a different thread
961 // or in the same thread during error reporting.
962 if (first_error_tid != mytid) {
963 char msgbuf[64];
964 jio_snprintf(msgbuf, sizeof(msgbuf),
965 "[thread " INT64_FORMAT " also had an error]",
966 mytid);
967 out.print_raw_cr(msgbuf);
969 // error reporting is not MT-safe, block current thread
970 os::infinite_sleep();
972 } else {
973 if (recursive_error_count++ > 30) {
974 out.print_raw_cr("[Too many errors, abort]");
975 os::die();
976 }
978 jio_snprintf(buffer, sizeof(buffer),
979 "[error occurred during error reporting %s, id 0x%x]",
980 first_error ? first_error->_current_step_info : "",
981 _id);
982 if (log.is_open()) {
983 log.cr();
984 log.print_raw_cr(buffer);
985 log.cr();
986 } else {
987 out.cr();
988 out.print_raw_cr(buffer);
989 out.cr();
990 }
991 }
992 }
994 // print to screen
995 if (!out_done) {
996 first_error->_verbose = false;
998 staticBufferStream sbs(buffer, sizeof(buffer), &out);
999 first_error->report(&sbs);
1001 out_done = true;
1003 first_error->_current_step = 0; // reset current_step
1004 first_error->_current_step_info = ""; // reset current_step string
1005 }
1007 // print to error log file
1008 if (!log_done) {
1009 first_error->_verbose = true;
1011 // see if log file is already open
1012 if (!log.is_open()) {
1013 // open log file
1014 int fd = prepare_log_file(ErrorFile, "hs_err_pid%p.log", buffer, sizeof(buffer));
1015 if (fd != -1) {
1016 out.print_raw("# An error report file with more information is saved as:\n# ");
1017 out.print_raw_cr(buffer);
1019 log.set_fd(fd);
1020 } else {
1021 out.print_raw_cr("# Can not save log file, dump to screen..");
1022 log.set_fd(defaultStream::output_fd());
1023 /* Error reporting currently needs dumpfile.
1024 * Maybe implement direct streaming in the future.*/
1025 transmit_report_done = true;
1026 }
1027 }
1029 staticBufferStream sbs(buffer, O_BUFLEN, &log);
1030 first_error->report(&sbs);
1031 first_error->_current_step = 0; // reset current_step
1032 first_error->_current_step_info = ""; // reset current_step string
1034 // Run error reporting to determine whether or not to report the crash.
1035 if (!transmit_report_done && should_report_bug(first_error->_id)) {
1036 transmit_report_done = true;
1037 FILE* hs_err = os::open(log.fd(), "r");
1038 if (NULL != hs_err) {
1039 ErrorReporter er;
1040 er.call(hs_err, buffer, O_BUFLEN);
1041 }
1042 }
1044 if (log.fd() != defaultStream::output_fd()) {
1045 close(log.fd());
1046 }
1048 log.set_fd(-1);
1049 log_done = true;
1050 }
1053 static bool skip_OnError = false;
1054 if (!skip_OnError && OnError && OnError[0]) {
1055 skip_OnError = true;
1057 out.print_raw_cr("#");
1058 out.print_raw ("# -XX:OnError=\"");
1059 out.print_raw (OnError);
1060 out.print_raw_cr("\"");
1062 char* cmd;
1063 const char* ptr = OnError;
1064 while ((cmd = next_OnError_command(buffer, sizeof(buffer), &ptr)) != NULL){
1065 out.print_raw ("# Executing ");
1066 #if defined(LINUX) || defined(_ALLBSD_SOURCE)
1067 out.print_raw ("/bin/sh -c ");
1068 #elif defined(SOLARIS)
1069 out.print_raw ("/usr/bin/sh -c ");
1070 #endif
1071 out.print_raw ("\"");
1072 out.print_raw (cmd);
1073 out.print_raw_cr("\" ...");
1075 if (os::fork_and_exec(cmd, true) < 0) {
1076 out.print_cr("os::fork_and_exec failed: %s (%d)", strerror(errno), errno);
1077 }
1078 }
1080 // done with OnError
1081 OnError = NULL;
1082 }
1084 static bool skip_replay = ReplayCompiles; // Do not overwrite file during replay
1085 if (DumpReplayDataOnError && _thread && _thread->is_Compiler_thread() && !skip_replay) {
1086 skip_replay = true;
1087 ciEnv* env = ciEnv::current();
1088 if (env != NULL) {
1089 int fd = prepare_log_file(ReplayDataFile, "replay_pid%p.log", buffer, sizeof(buffer));
1090 if (fd != -1) {
1091 FILE* replay_data_file = os::open(fd, "w");
1092 if (replay_data_file != NULL) {
1093 fileStream replay_data_stream(replay_data_file, /*need_close=*/true);
1094 env->dump_replay_data_unsafe(&replay_data_stream);
1095 out.print_raw("#\n# Compiler replay data is saved as:\n# ");
1096 out.print_raw_cr(buffer);
1097 } else {
1098 out.print_raw("#\n# Can't open file to dump replay data. Error: ");
1099 out.print_raw_cr(strerror(os::get_last_error()));
1100 }
1101 }
1102 }
1103 }
1105 static bool skip_bug_url = !should_report_bug(first_error->_id);
1106 if (!skip_bug_url) {
1107 skip_bug_url = true;
1109 out.print_raw_cr("#");
1110 print_bug_submit_message(&out, _thread);
1111 }
1113 if (!UseOSErrorReporting) {
1114 // os::abort() will call abort hooks, try it first.
1115 static bool skip_os_abort = false;
1116 if (!skip_os_abort) {
1117 skip_os_abort = true;
1118 bool dump_core = should_report_bug(first_error->_id);
1119 os::abort(dump_core);
1120 }
1122 // if os::abort() doesn't abort, try os::die();
1123 os::die();
1124 }
1125 }
1127 /*
1128 * OnOutOfMemoryError scripts/commands executed while VM is a safepoint - this
1129 * ensures utilities such as jmap can observe the process is a consistent state.
1130 */
1131 class VM_ReportJavaOutOfMemory : public VM_Operation {
1132 private:
1133 VMError *_err;
1134 public:
1135 VM_ReportJavaOutOfMemory(VMError *err) { _err = err; }
1136 VMOp_Type type() const { return VMOp_ReportJavaOutOfMemory; }
1137 void doit();
1138 };
1140 void VM_ReportJavaOutOfMemory::doit() {
1141 // Don't allocate large buffer on stack
1142 static char buffer[O_BUFLEN];
1144 tty->print_cr("#");
1145 tty->print_cr("# java.lang.OutOfMemoryError: %s", _err->message());
1146 tty->print_cr("# -XX:OnOutOfMemoryError=\"%s\"", OnOutOfMemoryError);
1148 // make heap parsability
1149 Universe::heap()->ensure_parsability(false); // no need to retire TLABs
1151 char* cmd;
1152 const char* ptr = OnOutOfMemoryError;
1153 while ((cmd = next_OnError_command(buffer, sizeof(buffer), &ptr)) != NULL){
1154 tty->print("# Executing ");
1155 #if defined(LINUX)
1156 tty->print ("/bin/sh -c ");
1157 #elif defined(SOLARIS)
1158 tty->print ("/usr/bin/sh -c ");
1159 #endif
1160 tty->print_cr("\"%s\"...", cmd);
1162 if (os::fork_and_exec(cmd) < 0) {
1163 tty->print_cr("os::fork_and_exec failed: %s (%d)", strerror(errno), errno);
1164 }
1165 }
1166 }
1168 void VMError::report_java_out_of_memory() {
1169 if (OnOutOfMemoryError && OnOutOfMemoryError[0]) {
1170 MutexLocker ml(Heap_lock);
1171 VM_ReportJavaOutOfMemory op(this);
1172 VMThread::execute(&op);
1173 }
1174 }