1 /*
2 * Copyright (c) 2003, 2016, 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 "logging/logConfiguration.hpp"
32 #include "prims/whitebox.hpp"
33 #include "runtime/arguments.hpp"
34 #include "runtime/atomic.hpp"
35 #include "runtime/frame.inline.hpp"
36 #include "runtime/init.hpp"
37 #include "runtime/os.hpp"
38 #include "runtime/thread.inline.hpp"
39 #include "runtime/vmThread.hpp"
40 #include "runtime/vm_operations.hpp"
41 #include "runtime/vm_version.hpp"
42 #include "services/memTracker.hpp"
43 #include "trace/traceMacros.hpp"
44 #include "utilities/debug.hpp"
45 #include "utilities/decoder.hpp"
46 #include "utilities/defaultStream.hpp"
47 #include "utilities/errorReporter.hpp"
48 #include "utilities/events.hpp"
49 #include "utilities/vmError.hpp"
50
51 // List of environment variables that should be reported in error log file.
52 const char *env_list[] = {
53 // All platforms
54 "JAVA_HOME", "JRE_HOME", "JAVA_TOOL_OPTIONS", "_JAVA_OPTIONS", "CLASSPATH",
55 "JAVA_COMPILER", "PATH", "USERNAME",
56
57 // Env variables that are defined on Solaris/Linux/BSD
58 "LD_LIBRARY_PATH", "LD_PRELOAD", "SHELL", "DISPLAY",
59 "HOSTTYPE", "OSTYPE", "ARCH", "MACHTYPE",
60
61 // defined on Linux
62 "LD_ASSUME_KERNEL", "_JAVA_SR_SIGNUM",
63
64 // defined on Darwin
65 "DYLD_LIBRARY_PATH", "DYLD_FALLBACK_LIBRARY_PATH",
66 "DYLD_FRAMEWORK_PATH", "DYLD_FALLBACK_FRAMEWORK_PATH",
67 "DYLD_INSERT_LIBRARIES",
68
69 // defined on Windows
70 "OS", "PROCESSOR_IDENTIFIER", "_ALT_JAVA_HOME_DIR",
71
72 (const char *)0
73 };
74
75 // A simple parser for -XX:OnError, usage:
76 // ptr = OnError;
77 // while ((cmd = next_OnError_command(buffer, sizeof(buffer), &ptr) != NULL)
78 // ... ...
79 static char* next_OnError_command(char* buf, int buflen, const char** ptr) {
80 if (ptr == NULL || *ptr == NULL) return NULL;
81
82 const char* cmd = *ptr;
83
84 // skip leading blanks or ';'
85 while (*cmd == ' ' || *cmd == ';') cmd++;
86
87 if (*cmd == '\0') return NULL;
88
89 const char * cmdend = cmd;
90 while (*cmdend != '\0' && *cmdend != ';') cmdend++;
91
92 Arguments::copy_expand_pid(cmd, cmdend - cmd, buf, buflen);
93
94 *ptr = (*cmdend == '\0' ? cmdend : cmdend + 1);
95 return buf;
96 }
97
98 static void print_bug_submit_message(outputStream *out, Thread *thread) {
99 if (out == NULL) return;
100 out->print_raw_cr("# If you would like to submit a bug report, please visit:");
101 out->print_raw ("# ");
102 out->print_raw_cr(Arguments::java_vendor_url_bug());
103 // If the crash is in native code, encourage user to submit a bug to the
104 // provider of that code.
105 if (thread && thread->is_Java_thread() &&
106 !thread->is_hidden_from_external_view()) {
107 JavaThread* jt = (JavaThread*)thread;
108 if (jt->thread_state() == _thread_in_native) {
109 out->print_cr("# The crash happened outside the Java Virtual Machine in native code.\n# See problematic frame for where to report the bug.");
110 }
111 }
112 out->print_raw_cr("#");
113 }
114
115 bool VMError::coredump_status;
116 char VMError::coredump_message[O_BUFLEN];
117
118 void VMError::record_coredump_status(const char* message, bool status) {
119 coredump_status = status;
120 strncpy(coredump_message, message, sizeof(coredump_message));
121 coredump_message[sizeof(coredump_message)-1] = 0;
122 }
123
124 // Return a string to describe the error
125 char* VMError::error_string(char* buf, int buflen) {
126 char signame_buf[64];
127 const char *signame = os::exception_name(_id, signame_buf, sizeof(signame_buf));
128
129 if (signame) {
130 jio_snprintf(buf, buflen,
131 "%s (0x%x) at pc=" PTR_FORMAT ", pid=%d, tid=" UINTX_FORMAT,
132 signame, _id, _pc,
133 os::current_process_id(), os::current_thread_id());
134 } else if (_filename != NULL && _lineno > 0) {
135 // skip directory names
136 char separator = os::file_separator()[0];
137 const char *p = strrchr(_filename, separator);
138 int n = jio_snprintf(buf, buflen,
139 "Internal Error at %s:%d, pid=%d, tid=" UINTX_FORMAT,
140 p ? p + 1 : _filename, _lineno,
141 os::current_process_id(), os::current_thread_id());
142 if (n >= 0 && n < buflen && _message) {
143 if (strlen(_detail_msg) > 0) {
144 jio_snprintf(buf + n, buflen - n, "%s%s: %s",
145 os::line_separator(), _message, _detail_msg);
146 } else {
147 jio_snprintf(buf + n, buflen - n, "%sError: %s",
148 os::line_separator(), _message);
149 }
150 }
151 } else {
152 jio_snprintf(buf, buflen,
153 "Internal Error (0x%x), pid=%d, tid=" UINTX_FORMAT,
154 _id, os::current_process_id(), os::current_thread_id());
155 }
156
157 return buf;
158 }
159
160 void VMError::print_stack_trace(outputStream* st, JavaThread* jt,
161 char* buf, int buflen, bool verbose) {
162 #ifdef ZERO
163 if (jt->zero_stack()->sp() && jt->top_zero_frame()) {
164 // StackFrameStream uses the frame anchor, which may not have
165 // been set up. This can be done at any time in Zero, however,
166 // so if it hasn't been set up then we just set it up now and
167 // clear it again when we're done.
168 bool has_last_Java_frame = jt->has_last_Java_frame();
169 if (!has_last_Java_frame)
170 jt->set_last_Java_frame();
171 st->print("Java frames:");
172
173 // If the top frame is a Shark frame and the frame anchor isn't
174 // set up then it's possible that the information in the frame
175 // is garbage: it could be from a previous decache, or it could
176 // simply have never been written. So we print a warning...
177 StackFrameStream sfs(jt);
178 if (!has_last_Java_frame && !sfs.is_done()) {
179 if (sfs.current()->zeroframe()->is_shark_frame()) {
180 st->print(" (TOP FRAME MAY BE JUNK)");
181 }
182 }
183 st->cr();
184
185 // Print the frames
186 for(int i = 0; !sfs.is_done(); sfs.next(), i++) {
187 sfs.current()->zero_print_on_error(i, st, buf, buflen);
188 st->cr();
189 }
190
191 // Reset the frame anchor if necessary
192 if (!has_last_Java_frame)
193 jt->reset_last_Java_frame();
194 }
195 #else
196 if (jt->has_last_Java_frame()) {
197 st->print_cr("Java frames: (J=compiled Java code, j=interpreted, Vv=VM code)");
198 for(StackFrameStream sfs(jt); !sfs.is_done(); sfs.next()) {
199 sfs.current()->print_on_error(st, buf, buflen, verbose);
200 st->cr();
201 }
202 }
203 #endif // ZERO
204 }
205
206 static void print_oom_reasons(outputStream* st) {
207 st->print_cr("# Possible reasons:");
208 st->print_cr("# The system is out of physical RAM or swap space");
209 if (UseCompressedOops) {
210 st->print_cr("# The process is running with CompressedOops enabled, and the Java Heap may be blocking the growth of the native heap");
211 }
212 if (LogBytesPerWord == 2) {
213 st->print_cr("# In 32 bit mode, the process size limit was hit");
214 }
215 st->print_cr("# Possible solutions:");
216 st->print_cr("# Reduce memory load on the system");
217 st->print_cr("# Increase physical memory or swap space");
218 st->print_cr("# Check if swap backing store is full");
219 if (LogBytesPerWord == 2) {
220 st->print_cr("# Use 64 bit Java on a 64 bit OS");
221 }
222 st->print_cr("# Decrease Java heap size (-Xmx/-Xms)");
223 st->print_cr("# Decrease number of Java threads");
224 st->print_cr("# Decrease Java thread stack sizes (-Xss)");
225 st->print_cr("# Set larger code cache with -XX:ReservedCodeCacheSize=");
226 if (UseCompressedOops) {
227 switch (Universe::narrow_oop_mode()) {
228 case Universe::UnscaledNarrowOop:
229 st->print_cr("# JVM is running with Unscaled Compressed Oops mode in which the Java heap is");
230 st->print_cr("# placed in the first 4GB address space. The Java Heap base address is the");
231 st->print_cr("# maximum limit for the native heap growth. Please use -XX:HeapBaseMinAddress");
232 st->print_cr("# to set the Java Heap base and to place the Java Heap above 4GB virtual address.");
233 break;
234 case Universe::ZeroBasedNarrowOop:
235 st->print_cr("# JVM is running with Zero Based Compressed Oops mode in which the Java heap is");
236 st->print_cr("# placed in the first 32GB address space. The Java Heap base address is the");
237 st->print_cr("# maximum limit for the native heap growth. Please use -XX:HeapBaseMinAddress");
238 st->print_cr("# to set the Java Heap base and to place the Java Heap above 32GB virtual address.");
239 break;
240 }
241 }
242 st->print_cr("# This output file may be truncated or incomplete.");
243 }
244
245 static const char* gc_mode() {
246 if (UseG1GC) return "g1 gc";
247 if (UseParallelGC) return "parallel gc";
248 if (UseConcMarkSweepGC) return "concurrent mark sweep gc";
249 if (UseSerialGC) return "serial gc";
250 return "ERROR in GC mode";
251 }
252
253 static void report_vm_version(outputStream* st, char* buf, int buflen) {
254 // VM version
255 st->print_cr("#");
256 JDK_Version::current().to_string(buf, buflen);
257 const char* runtime_name = JDK_Version::runtime_name() != NULL ?
258 JDK_Version::runtime_name() : "";
259 const char* runtime_version = JDK_Version::runtime_version() != NULL ?
260 JDK_Version::runtime_version() : "";
261 const char* jdk_debug_level = Abstract_VM_Version::printable_jdk_debug_level() != NULL ?
262 Abstract_VM_Version::printable_jdk_debug_level() : "";
263
264 st->print_cr("# JRE version: %s (%s) (%sbuild %s)", runtime_name, buf,
265 jdk_debug_level, runtime_version);
266
267 // This is the long version with some default settings added
268 st->print_cr("# Java VM: %s (%s%s, %s%s%s%s%s, %s, %s)",
269 Abstract_VM_Version::vm_name(),
270 jdk_debug_level,
271 Abstract_VM_Version::vm_release(),
272 Abstract_VM_Version::vm_info_string(),
273 TieredCompilation ? ", tiered" : "",
274 #if INCLUDE_JVMCI
275 EnableJVMCI ? ", jvmci" : "",
276 UseJVMCICompiler ? ", jvmci compiler" : "",
277 #else
278 "", "",
279 #endif
280 UseCompressedOops ? ", compressed oops" : "",
281 gc_mode(),
282 Abstract_VM_Version::vm_platform_string()
283 );
284 }
285
286 // This is the main function to report a fatal error. Only one thread can
287 // call this function, so we don't need to worry about MT-safety. But it's
288 // possible that the error handler itself may crash or die on an internal
289 // error, for example, when the stack/heap is badly damaged. We must be
290 // able to handle recursive errors that happen inside error handler.
291 //
292 // Error reporting is done in several steps. If a crash or internal error
293 // occurred when reporting an error, the nested signal/exception handler
294 // can skip steps that are already (or partially) done. Error reporting will
295 // continue from the next step. This allows us to retrieve and print
296 // information that may be unsafe to get after a fatal error. If it happens,
297 // you may find nested report_and_die() frames when you look at the stack
298 // in a debugger.
299 //
300 // In general, a hang in error handler is much worse than a crash or internal
301 // error, as it's harder to recover from a hang. Deadlock can happen if we
302 // try to grab a lock that is already owned by current thread, or if the
303 // owner is blocked forever (e.g. in os::infinite_sleep()). If possible, the
304 // error handler and all the functions it called should avoid grabbing any
305 // lock. An important thing to notice is that memory allocation needs a lock.
306 //
307 // We should avoid using large stack allocated buffers. Many errors happen
308 // when stack space is already low. Making things even worse is that there
309 // could be nested report_and_die() calls on stack (see above). Only one
310 // thread can report error, so large buffers are statically allocated in data
311 // segment.
312
313 int VMError::_current_step;
314 const char* VMError::_current_step_info;
315
316 // Timeout handling.
317 static volatile jlong reporting_start_time = -1;
318 static volatile bool reporting_timeout = false;
319 static volatile jlong step_start_time = -1;
320 static volatile bool step_timeout = false;
321
322 // Helper function, sets a timestamp to the current time.
323 static void set_to_now(volatile jlong* p) {
324 const jlong now = os::javaTimeMillis();
325 if (VM_Version::supports_cx8()) {
326 Atomic::store(now, p);
327 } else {
328 *p = now;
329 }
330 }
331
332 // helper function, returns value of time stamp.
333 static jlong get_timestamp(volatile jlong* p) {
334 if (VM_Version::supports_cx8()) {
335 return Atomic::load(p);
336 } else {
337 return *p;
338 }
339 }
340
341 void VMError::report(outputStream* st, bool _verbose) {
342
343 # define BEGIN if (_current_step == 0) { _current_step = __LINE__;
344 # define STEP(s) } if (_current_step < __LINE__) { _current_step = __LINE__; _current_step_info = s; \
345 set_to_now(&step_start_time); step_timeout = false;
346 # define END }
347
348 // don't allocate large buffer on stack
349 static char buf[O_BUFLEN];
350
351 BEGIN
352
353 STEP("printing fatal error message")
354
355 st->print_cr("#");
356 if (should_report_bug(_id)) {
357 st->print_cr("# A fatal error has been detected by the Java Runtime Environment:");
358 } else {
359 st->print_cr("# There is insufficient memory for the Java "
360 "Runtime Environment to continue.");
361 }
362
363 #ifndef PRODUCT
364 // Error handler self tests
365
366 // test secondary error handling. Test it twice, to test that resetting
367 // error handler after a secondary crash works.
368 STEP("test secondary crash 1")
369 if (_verbose && TestCrashInErrorHandler != 0) {
370 st->print_cr("Will crash now (TestCrashInErrorHandler=" UINTX_FORMAT ")...",
371 TestCrashInErrorHandler);
372 controlled_crash(TestCrashInErrorHandler);
373 }
374
375 STEP("test secondary crash 2")
376 if (_verbose && TestCrashInErrorHandler != 0) {
377 st->print_cr("Will crash now (TestCrashInErrorHandler=" UINTX_FORMAT ")...",
378 TestCrashInErrorHandler);
379 controlled_crash(TestCrashInErrorHandler);
380 }
381
382 // TestUnresponsiveErrorHandler: three times to trigger first a step timeout, then
383 // the global error reporting timeout.
384 STEP("test unresponsive error reporting step 1")
385 if (_verbose && TestUnresponsiveErrorHandler) { os::infinite_sleep(); }
386
387 STEP("test unresponsive error reporting step 2")
388 if (_verbose && TestUnresponsiveErrorHandler) { os::infinite_sleep(); }
389
390 STEP("test unresponsive error reporting step 3")
391 if (_verbose && TestUnresponsiveErrorHandler) { os::infinite_sleep(); }
392
393 STEP("test safefetch in error handler")
394 // test whether it is safe to use SafeFetch32 in Crash Handler. Test twice
395 // to test that resetting the signal handler works correctly.
396 if (_verbose && TestSafeFetchInErrorHandler) {
397 st->print_cr("Will test SafeFetch...");
398 if (CanUseSafeFetch32()) {
399 int* const invalid_pointer = (int*) get_segfault_address();
400 const int x = 0x76543210;
401 int i1 = SafeFetch32(invalid_pointer, x);
402 int i2 = SafeFetch32(invalid_pointer, x);
403 if (i1 == x && i2 == x) {
404 st->print_cr("SafeFetch OK."); // Correctly deflected and returned default pattern
405 } else {
406 st->print_cr("??");
407 }
408 } else {
409 st->print_cr("not possible; skipped.");
410 }
411 }
412 #endif // PRODUCT
413
414 STEP("printing type of error")
415
416 switch(_id) {
417 case OOM_MALLOC_ERROR:
418 case OOM_MMAP_ERROR:
419 if (_size) {
420 st->print("# Native memory allocation ");
421 st->print((_id == (int)OOM_MALLOC_ERROR) ? "(malloc) failed to allocate " :
422 "(mmap) failed to map ");
423 jio_snprintf(buf, sizeof(buf), SIZE_FORMAT, _size);
424 st->print("%s", buf);
425 st->print(" bytes");
426 if (strlen(_detail_msg) > 0) {
427 st->print(" for ");
428 st->print("%s", _detail_msg);
429 }
430 st->cr();
431 } else {
432 if (strlen(_detail_msg) > 0) {
433 st->print("# ");
434 st->print_cr("%s", _detail_msg);
435 }
436 }
437 // In error file give some solutions
438 if (_verbose) {
439 print_oom_reasons(st);
440 } else {
441 return; // that's enough for the screen
442 }
443 break;
444 case INTERNAL_ERROR:
445 default:
446 break;
447 }
448
449 STEP("printing exception/signal name")
450
451 st->print_cr("#");
452 st->print("# ");
453 // Is it an OS exception/signal?
454 if (os::exception_name(_id, buf, sizeof(buf))) {
455 st->print("%s", buf);
456 st->print(" (0x%x)", _id); // signal number
457 st->print(" at pc=" PTR_FORMAT, p2i(_pc));
458 } else {
459 if (should_report_bug(_id)) {
460 st->print("Internal Error");
461 } else {
462 st->print("Out of Memory Error");
463 }
464 if (_filename != NULL && _lineno > 0) {
465 #ifdef PRODUCT
466 // In product mode chop off pathname?
467 char separator = os::file_separator()[0];
468 const char *p = strrchr(_filename, separator);
469 const char *file = p ? p+1 : _filename;
470 #else
471 const char *file = _filename;
472 #endif
473 st->print(" (%s:%d)", file, _lineno);
474 } else {
475 st->print(" (0x%x)", _id);
476 }
477 }
478
479 STEP("printing current thread and pid")
480
481 // process id, thread id
482 st->print(", pid=%d", os::current_process_id());
483 st->print(", tid=" UINTX_FORMAT, os::current_thread_id());
484 st->cr();
485
486 STEP("printing error message")
487
488 if (should_report_bug(_id)) { // already printed the message.
489 // error message
490 if (strlen(_detail_msg) > 0) {
491 st->print_cr("# %s: %s", _message ? _message : "Error", _detail_msg);
492 } else if (_message) {
493 st->print_cr("# Error: %s", _message);
494 }
495 }
496
497 STEP("printing Java version string")
498
499 report_vm_version(st, buf, sizeof(buf));
500
501 STEP("printing problematic frame")
502
503 // Print current frame if we have a context (i.e. it's a crash)
504 if (_context) {
505 st->print_cr("# Problematic frame:");
506 st->print("# ");
507 frame fr = os::fetch_frame_from_context(_context);
508 fr.print_on_error(st, buf, sizeof(buf));
509 st->cr();
510 st->print_cr("#");
511 }
512
513 STEP("printing core file information")
514 st->print("# ");
515 if (CreateCoredumpOnCrash) {
516 if (coredump_status) {
517 st->print("Core dump will be written. Default location: %s", coredump_message);
518 } else {
519 st->print("No core dump will be written. %s", coredump_message);
520 }
521 } else {
522 st->print("CreateCoredumpOnCrash turned off, no core file dumped");
523 }
524 st->cr();
525 st->print_cr("#");
526
527 STEP("printing bug submit message")
528
529 if (should_report_bug(_id) && _verbose) {
530 print_bug_submit_message(st, _thread);
531 }
532
533 STEP("printing summary")
534
535 if (_verbose) {
536 st->cr();
537 st->print_cr("--------------- S U M M A R Y ------------");
538 st->cr();
539 }
540
541 STEP("printing VM option summary")
542
543 if (_verbose) {
544 // VM options
545 Arguments::print_summary_on(st);
546 st->cr();
547 }
548
549 STEP("printing summary machine and OS info")
550
551 if (_verbose) {
552 os::print_summary_info(st, buf, sizeof(buf));
553 }
554
555
556 STEP("printing date and time")
557
558 if (_verbose) {
559 os::print_date_and_time(st, buf, sizeof(buf));
560 }
561
562 STEP("printing thread")
563
564 if (_verbose) {
565 st->cr();
566 st->print_cr("--------------- T H R E A D ---------------");
567 st->cr();
568 }
569
570 STEP("printing current thread")
571
572 // current thread
573 if (_verbose) {
574 if (_thread) {
575 st->print("Current thread (" PTR_FORMAT "): ", p2i(_thread));
576 _thread->print_on_error(st, buf, sizeof(buf));
577 st->cr();
578 } else {
579 st->print_cr("Current thread is native thread");
580 }
581 st->cr();
582 }
583
584 STEP("printing current compile task")
585
586 if (_verbose && _thread && _thread->is_Compiler_thread()) {
587 CompilerThread* t = (CompilerThread*)_thread;
588 if (t->task()) {
589 st->cr();
590 st->print_cr("Current CompileTask:");
591 t->task()->print_line_on_error(st, buf, sizeof(buf));
592 st->cr();
593 }
594 }
595
596
597 STEP("printing stack bounds")
598
599 if (_verbose) {
600 st->print("Stack: ");
601
602 address stack_top;
603 size_t stack_size;
604
605 if (_thread) {
606 stack_top = _thread->stack_base();
607 stack_size = _thread->stack_size();
608 } else {
609 stack_top = os::current_stack_base();
610 stack_size = os::current_stack_size();
611 }
612
613 address stack_bottom = stack_top - stack_size;
614 st->print("[" PTR_FORMAT "," PTR_FORMAT "]", p2i(stack_bottom), p2i(stack_top));
615
616 frame fr = _context ? os::fetch_frame_from_context(_context)
617 : os::current_frame();
618
619 if (fr.sp()) {
620 st->print(", sp=" PTR_FORMAT, p2i(fr.sp()));
621 size_t free_stack_size = pointer_delta(fr.sp(), stack_bottom, 1024);
622 st->print(", free space=" SIZE_FORMAT "k", free_stack_size);
623 }
624
625 st->cr();
626 }
627
628 STEP("printing native stack")
629
630 if (_verbose) {
631 if (os::platform_print_native_stack(st, _context, buf, sizeof(buf))) {
632 // We have printed the native stack in platform-specific code
633 // Windows/x64 needs special handling.
634 } else {
635 frame fr = _context ? os::fetch_frame_from_context(_context)
636 : os::current_frame();
637
638 print_native_stack(st, fr, _thread, buf, sizeof(buf));
639 }
640 }
641
642 STEP("printing Java stack")
643
644 if (_verbose && _thread && _thread->is_Java_thread()) {
645 print_stack_trace(st, (JavaThread*)_thread, buf, sizeof(buf));
646 }
647
648 STEP("printing target Java thread stack")
649
650 // printing Java thread stack trace if it is involved in GC crash
651 if (_verbose && _thread && (_thread->is_Named_thread())) {
652 JavaThread* jt = ((NamedThread *)_thread)->processed_thread();
653 if (jt != NULL) {
654 st->print_cr("JavaThread " PTR_FORMAT " (nid = %d) was being processed", p2i(jt), jt->osthread()->thread_id());
655 print_stack_trace(st, jt, buf, sizeof(buf), true);
656 }
657 }
658
659 STEP("printing siginfo")
660
661 // signal no, signal code, address that caused the fault
662 if (_verbose && _siginfo) {
663 st->cr();
664 os::print_siginfo(st, _siginfo);
665 st->cr();
666 }
667
668 STEP("CDS archive access warning")
669
670 // Print an explicit hint if we crashed on access to the CDS archive.
671 if (_verbose && _siginfo) {
672 check_failing_cds_access(st, _siginfo);
673 st->cr();
674 }
675
676 STEP("printing register info")
677
678 // decode register contents if possible
679 if (_verbose && _context && Universe::is_fully_initialized()) {
680 os::print_register_info(st, _context);
681 st->cr();
682 }
683
684 STEP("printing registers, top of stack, instructions near pc")
685
686 // registers, top of stack, instructions near pc
687 if (_verbose && _context) {
688 os::print_context(st, _context);
689 st->cr();
690 }
691
692 STEP("printing code blob if possible")
693
694 if (_verbose && _context) {
695 CodeBlob* cb = CodeCache::find_blob(_pc);
696 if (cb != NULL) {
697 if (Interpreter::contains(_pc)) {
698 // The interpreter CodeBlob is very large so try to print the codelet instead.
699 InterpreterCodelet* codelet = Interpreter::codelet_containing(_pc);
700 if (codelet != NULL) {
701 codelet->print_on(st);
702 Disassembler::decode(codelet->code_begin(), codelet->code_end(), st);
703 }
704 } else {
705 StubCodeDesc* desc = StubCodeDesc::desc_for(_pc);
706 if (desc != NULL) {
707 desc->print_on(st);
708 Disassembler::decode(desc->begin(), desc->end(), st);
709 } else {
710 Disassembler::decode(cb, st);
711 st->cr();
712 }
713 }
714 }
715 }
716
717 STEP("printing VM operation")
718
719 if (_verbose && _thread && _thread->is_VM_thread()) {
720 VMThread* t = (VMThread*)_thread;
721 VM_Operation* op = t->vm_operation();
722 if (op) {
723 op->print_on_error(st);
724 st->cr();
725 st->cr();
726 }
727 }
728
729 STEP("printing process")
730
731 if (_verbose) {
732 st->cr();
733 st->print_cr("--------------- P R O C E S S ---------------");
734 st->cr();
735 }
736
737 STEP("printing all threads")
738
739 // all threads
740 if (_verbose && _thread) {
741 Threads::print_on_error(st, _thread, buf, sizeof(buf));
742 st->cr();
743 }
744
745 STEP("printing VM state")
746
747 if (_verbose) {
748 // Safepoint state
749 st->print("VM state:");
750
751 if (SafepointSynchronize::is_synchronizing()) st->print("synchronizing");
752 else if (SafepointSynchronize::is_at_safepoint()) st->print("at safepoint");
753 else st->print("not at safepoint");
754
755 // Also see if error occurred during initialization or shutdown
756 if (!Universe::is_fully_initialized()) {
757 st->print(" (not fully initialized)");
758 } else if (VM_Exit::vm_exited()) {
759 st->print(" (shutting down)");
760 } else {
761 st->print(" (normal execution)");
762 }
763 st->cr();
764 st->cr();
765 }
766
767 STEP("printing owned locks on error")
768
769 // mutexes/monitors that currently have an owner
770 if (_verbose) {
771 print_owned_locks_on_error(st);
772 st->cr();
773 }
774
775 STEP("printing number of OutOfMemoryError and StackOverflow exceptions")
776
777 if (_verbose && Exceptions::has_exception_counts()) {
778 st->print_cr("OutOfMemory and StackOverflow Exception counts:");
779 Exceptions::print_exception_counts_on_error(st);
780 st->cr();
781 }
782
783 STEP("printing compressed oops mode")
784
785 if (_verbose && UseCompressedOops) {
786 Universe::print_compressed_oops_mode(st);
787 if (UseCompressedClassPointers) {
788 Metaspace::print_compressed_class_space(st);
789 }
790 st->cr();
791 }
792
793 STEP("printing heap information")
794
795 if (_verbose && Universe::is_fully_initialized()) {
796 Universe::heap()->print_on_error(st);
797 st->cr();
798 st->print_cr("Polling page: " INTPTR_FORMAT, p2i(os::get_polling_page()));
799 st->cr();
800 }
801
802 STEP("printing code cache information")
803
804 if (_verbose && Universe::is_fully_initialized()) {
805 // print code cache information before vm abort
806 CodeCache::print_summary(st);
807 st->cr();
808 }
809
810 STEP("printing ring buffers")
811
812 if (_verbose) {
813 Events::print_all(st);
814 st->cr();
815 }
816
817 STEP("printing dynamic libraries")
818
819 if (_verbose) {
820 // dynamic libraries, or memory map
821 os::print_dll_info(st);
822 st->cr();
823 }
824
825 STEP("printing VM options")
826
827 if (_verbose) {
828 // VM options
829 Arguments::print_on(st);
830 st->cr();
831 }
832
833 STEP("printing warning if internal testing API used")
834
835 if (WhiteBox::used()) {
836 st->print_cr("Unsupported internal testing APIs have been used.");
837 st->cr();
838 }
839
840 STEP("printing log configuration")
841 if (_verbose){
842 st->print_cr("Logging:");
843 LogConfiguration::describe_current_configuration(st);
844 st->cr();
845 }
846
847 STEP("printing all environment variables")
848
849 if (_verbose) {
850 os::print_environment_variables(st, env_list);
851 st->cr();
852 }
853
854 STEP("printing signal handlers")
855
856 if (_verbose) {
857 os::print_signal_handlers(st, buf, sizeof(buf));
858 st->cr();
859 }
860
861 STEP("Native Memory Tracking")
862 if (_verbose) {
863 MemTracker::error_report(st);
864 }
865
866 STEP("printing system")
867
868 if (_verbose) {
869 st->cr();
870 st->print_cr("--------------- S Y S T E M ---------------");
871 st->cr();
872 }
873
874 STEP("printing OS information")
875
876 if (_verbose) {
877 os::print_os_info(st);
878 st->cr();
879 }
880
881 STEP("printing CPU info")
882 if (_verbose) {
883 os::print_cpu_info(st, buf, sizeof(buf));
884 st->cr();
885 }
886
887 STEP("printing memory info")
888
889 if (_verbose) {
890 os::print_memory_info(st);
891 st->cr();
892 }
893
894 STEP("printing internal vm info")
895
896 if (_verbose) {
897 st->print_cr("vm_info: %s", Abstract_VM_Version::internal_vm_info_string());
898 st->cr();
899 }
900
901 // print a defined marker to show that error handling finished correctly.
902 STEP("printing end marker")
903
904 if (_verbose) {
905 st->print_cr("END.");
906 }
907
908 END
909
910 # undef BEGIN
911 # undef STEP
912 # undef END
913 }
914
915 // Report for the vm_info_cmd. This prints out the information above omitting
916 // crash and thread specific information. If output is added above, it should be added
917 // here also, if it is safe to call during a running process.
918 void VMError::print_vm_info(outputStream* st) {
919
920 char buf[O_BUFLEN];
921 report_vm_version(st, buf, sizeof(buf));
922
923 // STEP("printing summary")
924
925 st->cr();
926 st->print_cr("--------------- S U M M A R Y ------------");
927 st->cr();
928
929 // STEP("printing VM option summary")
930
931 // VM options
932 Arguments::print_summary_on(st);
933 st->cr();
934
935 // STEP("printing summary machine and OS info")
936
937 os::print_summary_info(st, buf, sizeof(buf));
938
939 // STEP("printing date and time")
940
941 os::print_date_and_time(st, buf, sizeof(buf));
942
943 // Skip: STEP("printing thread")
944
945 // STEP("printing process")
946
947 st->cr();
948 st->print_cr("--------------- P R O C E S S ---------------");
949 st->cr();
950
951 // STEP("printing number of OutOfMemoryError and StackOverflow exceptions")
952
953 if (Exceptions::has_exception_counts()) {
954 st->print_cr("OutOfMemory and StackOverflow Exception counts:");
955 Exceptions::print_exception_counts_on_error(st);
956 st->cr();
957 }
958
959 // STEP("printing compressed oops mode")
960
961 if (UseCompressedOops) {
962 Universe::print_compressed_oops_mode(st);
963 if (UseCompressedClassPointers) {
964 Metaspace::print_compressed_class_space(st);
965 }
966 st->cr();
967 }
968
969 // STEP("printing heap information")
970
971 if (Universe::is_fully_initialized()) {
972 MutexLocker hl(Heap_lock);
973 Universe::heap()->print_on_error(st);
974 st->cr();
975 st->print_cr("Polling page: " INTPTR_FORMAT, p2i(os::get_polling_page()));
976 st->cr();
977 }
978
979 // STEP("printing code cache information")
980
981 if (Universe::is_fully_initialized()) {
982 // print code cache information before vm abort
983 CodeCache::print_summary(st);
984 st->cr();
985 }
986
987 // STEP("printing ring buffers")
988
989 Events::print_all(st);
990 st->cr();
991
992 // STEP("printing dynamic libraries")
993
994 // dynamic libraries, or memory map
995 os::print_dll_info(st);
996 st->cr();
997
998 // STEP("printing VM options")
999
1000 // VM options
1001 Arguments::print_on(st);
1002 st->cr();
1003
1004 // STEP("printing warning if internal testing API used")
1005
1006 if (WhiteBox::used()) {
1007 st->print_cr("Unsupported internal testing APIs have been used.");
1008 st->cr();
1009 }
1010
1011 // STEP("printing log configuration")
1012 st->print_cr("Logging:");
1013 LogConfiguration::describe(st);
1014 st->cr();
1015
1016 // STEP("printing all environment variables")
1017
1018 os::print_environment_variables(st, env_list);
1019 st->cr();
1020
1021 // STEP("printing signal handlers")
1022
1023 os::print_signal_handlers(st, buf, sizeof(buf));
1024 st->cr();
1025
1026 // STEP("Native Memory Tracking")
1027
1028 MemTracker::error_report(st);
1029
1030 // STEP("printing system")
1031
1032 st->cr();
1033 st->print_cr("--------------- S Y S T E M ---------------");
1034 st->cr();
1035
1036 // STEP("printing OS information")
1037
1038 os::print_os_info(st);
1039 st->cr();
1040
1041 // STEP("printing CPU info")
1042
1043 os::print_cpu_info(st, buf, sizeof(buf));
1044 st->cr();
1045
1046 // STEP("printing memory info")
1047
1048 os::print_memory_info(st);
1049 st->cr();
1050
1051 // STEP("printing internal vm info")
1052
1053 st->print_cr("vm_info: %s", Abstract_VM_Version::internal_vm_info_string());
1054 st->cr();
1055
1056 // print a defined marker to show that error handling finished correctly.
1057 // STEP("printing end marker")
1058
1059 st->print_cr("END.");
1060 }
1061
1062 volatile intptr_t VMError::first_error_tid = -1;
1063
1064 // An error could happen before tty is initialized or after it has been
1065 // destroyed.
1066 // Please note: to prevent large stack allocations, the log- and
1067 // output-stream use a global scratch buffer for format printing.
1068 // (see VmError::report_and_die(). Access to those streams is synchronized
1069 // in VmError::report_and_die() - there is only one reporting thread at
1070 // any given time.
1071 fdStream VMError::out(defaultStream::output_fd());
1072 fdStream VMError::log; // error log used by VMError::report_and_die()
1073
1074 /** Expand a pattern into a buffer starting at pos and open a file using constructed path */
1075 static int expand_and_open(const char* pattern, char* buf, size_t buflen, size_t pos) {
1076 int fd = -1;
1077 if (Arguments::copy_expand_pid(pattern, strlen(pattern), &buf[pos], buflen - pos)) {
1078 // the O_EXCL flag will cause the open to fail if the file exists
1079 fd = open(buf, O_RDWR | O_CREAT | O_EXCL, 0666);
1080 }
1081 return fd;
1082 }
1083
1084 /**
1085 * Construct file name for a log file and return it's file descriptor.
1086 * Name and location depends on pattern, default_pattern params and access
1087 * permissions.
1088 */
1089 static int prepare_log_file(const char* pattern, const char* default_pattern, char* buf, size_t buflen) {
1090 int fd = -1;
1091
1092 // If possible, use specified pattern to construct log file name
1093 if (pattern != NULL) {
1094 fd = expand_and_open(pattern, buf, buflen, 0);
1095 }
1096
1097 // Either user didn't specify, or the user's location failed,
1098 // so use the default name in the current directory
1099 if (fd == -1) {
1100 const char* cwd = os::get_current_directory(buf, buflen);
1101 if (cwd != NULL) {
1102 size_t pos = strlen(cwd);
1103 int fsep_len = jio_snprintf(&buf[pos], buflen-pos, "%s", os::file_separator());
1104 pos += fsep_len;
1105 if (fsep_len > 0) {
1106 fd = expand_and_open(default_pattern, buf, buflen, pos);
1107 }
1108 }
1109 }
1110
1111 // try temp directory if it exists.
1112 if (fd == -1) {
1113 const char* tmpdir = os::get_temp_directory();
1114 if (tmpdir != NULL && strlen(tmpdir) > 0) {
1115 int pos = jio_snprintf(buf, buflen, "%s%s", tmpdir, os::file_separator());
1116 if (pos > 0) {
1117 fd = expand_and_open(default_pattern, buf, buflen, pos);
1118 }
1119 }
1120 }
1121
1122 return fd;
1123 }
1124
1125 int VMError::_id;
1126 const char* VMError::_message;
1127 char VMError::_detail_msg[1024];
1128 Thread* VMError::_thread;
1129 address VMError::_pc;
1130 void* VMError::_siginfo;
1131 void* VMError::_context;
1132 const char* VMError::_filename;
1133 int VMError::_lineno;
1134 size_t VMError::_size;
1135
1136 void VMError::report_and_die(Thread* thread, unsigned int sig, address pc, void* siginfo,
1137 void* context, const char* detail_fmt, ...)
1138 {
1139 va_list detail_args;
1140 va_start(detail_args, detail_fmt);
1141 report_and_die(sig, NULL, detail_fmt, detail_args, thread, pc, siginfo, context, NULL, 0, 0);
1142 va_end(detail_args);
1143 }
1144
1145 void VMError::report_and_die(Thread* thread, unsigned int sig, address pc, void* siginfo, void* context)
1146 {
1147 report_and_die(thread, sig, pc, siginfo, context, "%s", "");
1148 }
1149
1150 void VMError::report_and_die(const char* message, const char* detail_fmt, ...)
1151 {
1152 va_list detail_args;
1153 va_start(detail_args, detail_fmt);
1154 report_and_die(INTERNAL_ERROR, message, detail_fmt, detail_args, NULL, NULL, NULL, NULL, NULL, 0, 0);
1155 va_end(detail_args);
1156 }
1157
1158 void VMError::report_and_die(const char* message)
1159 {
1160 report_and_die(message, "%s", "");
1161 }
1162
1163 void VMError::report_and_die(Thread* thread, const char* filename, int lineno, const char* message,
1164 const char* detail_fmt, va_list detail_args)
1165 {
1166 report_and_die(INTERNAL_ERROR, message, detail_fmt, detail_args, thread, NULL, NULL, NULL, filename, lineno, 0);
1167 }
1168
1169 void VMError::report_and_die(Thread* thread, const char* filename, int lineno, size_t size,
1170 VMErrorType vm_err_type, const char* detail_fmt, va_list detail_args) {
1171 report_and_die(vm_err_type, NULL, detail_fmt, detail_args, thread, NULL, NULL, NULL, filename, lineno, size);
1172 }
1173
1174 void VMError::report_and_die(int id, const char* message, const char* detail_fmt, va_list detail_args,
1175 Thread* thread, address pc, void* siginfo, void* context, const char* filename,
1176 int lineno, size_t size)
1177 {
1178 // Don't allocate large buffer on stack
1179 static char buffer[O_BUFLEN];
1180 out.set_scratch_buffer(buffer, sizeof(buffer));
1181 log.set_scratch_buffer(buffer, sizeof(buffer));
1182
1183 // How many errors occurred in error handler when reporting first_error.
1184 static int recursive_error_count;
1185
1186 // We will first print a brief message to standard out (verbose = false),
1187 // then save detailed information in log file (verbose = true).
1188 static bool out_done = false; // done printing to standard out
1189 static bool log_done = false; // done saving error log
1190 static bool transmit_report_done = false; // done error reporting
1191
1192 if (SuppressFatalErrorMessage) {
1193 os::abort(CreateCoredumpOnCrash);
1194 }
1195 intptr_t mytid = os::current_thread_id();
1196 if (first_error_tid == -1 &&
1197 Atomic::cmpxchg_ptr(mytid, &first_error_tid, -1) == -1) {
1198
1199 // Initialize time stamps to use the same base.
1200 out.time_stamp().update_to(1);
1201 log.time_stamp().update_to(1);
1202
1203 _id = id;
1204 _message = message;
1205 _thread = thread;
1206 _pc = pc;
1207 _siginfo = siginfo;
1208 _context = context;
1209 _filename = filename;
1210 _lineno = lineno;
1211 _size = size;
1212 jio_vsnprintf(_detail_msg, sizeof(_detail_msg), detail_fmt, detail_args);
1213
1214 // first time
1215 set_error_reported();
1216
1217 reporting_started();
1218 set_to_now(&reporting_start_time);
1219
1220 if (ShowMessageBoxOnError || PauseAtExit) {
1221 show_message_box(buffer, sizeof(buffer));
1222
1223 // User has asked JVM to abort. Reset ShowMessageBoxOnError so the
1224 // WatcherThread can kill JVM if the error handler hangs.
1225 ShowMessageBoxOnError = false;
1226 }
1227
1228 os::check_dump_limit(buffer, sizeof(buffer));
1229
1230 // reset signal handlers or exception filter; make sure recursive crashes
1231 // are handled properly.
1232 reset_signal_handlers();
1233
1234 TRACE_VM_ERROR();
1235
1236 } else {
1237 // If UseOsErrorReporting we call this for each level of the call stack
1238 // while searching for the exception handler. Only the first level needs
1239 // to be reported.
1240 if (UseOSErrorReporting && log_done) return;
1241
1242 // This is not the first error, see if it happened in a different thread
1243 // or in the same thread during error reporting.
1244 if (first_error_tid != mytid) {
1245 char msgbuf[64];
1246 jio_snprintf(msgbuf, sizeof(msgbuf),
1247 "[thread " INTX_FORMAT " also had an error]",
1248 mytid);
1249 out.print_raw_cr(msgbuf);
1250
1251 // error reporting is not MT-safe, block current thread
1252 os::infinite_sleep();
1253
1254 } else {
1255 if (recursive_error_count++ > 30) {
1256 out.print_raw_cr("[Too many errors, abort]");
1257 os::die();
1258 }
1259
1260 outputStream* const st = log.is_open() ? &log : &out;
1261 st->cr();
1262
1263 // Timeout handling.
1264 if (step_timeout) {
1265 // The current step had a timeout. Lets continue reporting with the next step.
1266 st->print_raw("[timeout occurred during error reporting in step \"");
1267 st->print_raw(_current_step_info);
1268 st->print_cr("\"] after " INT64_FORMAT " ms.", os::javaTimeMillis() - step_start_time);
1269 } else if (reporting_timeout) {
1270 // We hit ErrorLogTimeout. Reporting will stop altogether. Lets wrap things
1271 // up, the process is about to be stopped by the WatcherThread.
1272 st->print_cr("------ Timout during error reporting after " INT64_FORMAT "ms. ------",
1273 os::javaTimeMillis() - reporting_start_time);
1274 st->flush();
1275 // Watcherthread is about to call os::die. Lets just wait.
1276 os::infinite_sleep();
1277 } else {
1278 // Crash or assert during error reporting. Lets continue reporting with the next step.
1279 jio_snprintf(buffer, sizeof(buffer),
1280 "[error occurred during error reporting (%s), id 0x%x]",
1281 _current_step_info, _id);
1282 st->print_raw_cr(buffer);
1283 st->cr();
1284 }
1285 }
1286 }
1287
1288 // print to screen
1289 if (!out_done) {
1290 report(&out, false);
1291
1292 out_done = true;
1293
1294 _current_step = 0;
1295 _current_step_info = "";
1296 }
1297
1298 // print to error log file
1299 if (!log_done) {
1300 // see if log file is already open
1301 if (!log.is_open()) {
1302 // open log file
1303 int fd = prepare_log_file(ErrorFile, "hs_err_pid%p.log", buffer, sizeof(buffer));
1304 if (fd != -1) {
1305 out.print_raw("# An error report file with more information is saved as:\n# ");
1306 out.print_raw_cr(buffer);
1307
1308 log.set_fd(fd);
1309 } else {
1310 out.print_raw_cr("# Can not save log file, dump to screen..");
1311 log.set_fd(defaultStream::output_fd());
1312 /* Error reporting currently needs dumpfile.
1313 * Maybe implement direct streaming in the future.*/
1314 transmit_report_done = true;
1315 }
1316 }
1317
1318 report(&log, true);
1319 _current_step = 0;
1320 _current_step_info = "";
1321
1322 // Run error reporting to determine whether or not to report the crash.
1323 if (!transmit_report_done && should_report_bug(_id)) {
1324 transmit_report_done = true;
1325 const int fd2 = ::dup(log.fd());
1326 FILE* const hs_err = ::fdopen(fd2, "r");
1327 if (NULL != hs_err) {
1328 ErrorReporter er;
1329 er.call(hs_err, buffer, O_BUFLEN);
1330 }
1331 ::fclose(hs_err);
1332 }
1333
1334 if (log.fd() != defaultStream::output_fd()) {
1335 close(log.fd());
1336 }
1337
1338 log.set_fd(-1);
1339 log_done = true;
1340 }
1341
1342 static bool skip_replay = ReplayCompiles; // Do not overwrite file during replay
1343 if (DumpReplayDataOnError && _thread && _thread->is_Compiler_thread() && !skip_replay) {
1344 skip_replay = true;
1345 ciEnv* env = ciEnv::current();
1346 if (env != NULL) {
1347 int fd = prepare_log_file(ReplayDataFile, "replay_pid%p.log", buffer, sizeof(buffer));
1348 if (fd != -1) {
1349 FILE* replay_data_file = os::open(fd, "w");
1350 if (replay_data_file != NULL) {
1351 fileStream replay_data_stream(replay_data_file, /*need_close=*/true);
1352 env->dump_replay_data_unsafe(&replay_data_stream);
1353 out.print_raw("#\n# Compiler replay data is saved as:\n# ");
1354 out.print_raw_cr(buffer);
1355 } else {
1356 int e = errno;
1357 out.print_raw("#\n# Can't open file to dump replay data. Error: ");
1358 out.print_raw_cr(os::strerror(e));
1359 }
1360 }
1361 }
1362 }
1363
1364 static bool skip_bug_url = !should_report_bug(_id);
1365 if (!skip_bug_url) {
1366 skip_bug_url = true;
1367
1368 out.print_raw_cr("#");
1369 print_bug_submit_message(&out, _thread);
1370 }
1371
1372 static bool skip_OnError = false;
1373 if (!skip_OnError && OnError && OnError[0]) {
1374 skip_OnError = true;
1375
1376 // Flush output and finish logs before running OnError commands.
1377 ostream_abort();
1378
1379 out.print_raw_cr("#");
1380 out.print_raw ("# -XX:OnError=\"");
1381 out.print_raw (OnError);
1382 out.print_raw_cr("\"");
1383
1384 char* cmd;
1385 const char* ptr = OnError;
1386 while ((cmd = next_OnError_command(buffer, sizeof(buffer), &ptr)) != NULL){
1387 out.print_raw ("# Executing ");
1388 #if defined(LINUX) || defined(_ALLBSD_SOURCE)
1389 out.print_raw ("/bin/sh -c ");
1390 #elif defined(SOLARIS)
1391 out.print_raw ("/usr/bin/sh -c ");
1392 #endif
1393 out.print_raw ("\"");
1394 out.print_raw (cmd);
1395 out.print_raw_cr("\" ...");
1396
1397 if (os::fork_and_exec(cmd) < 0) {
1398 out.print_cr("os::fork_and_exec failed: %s (%s=%d)",
1399 os::strerror(errno), os::errno_name(errno), errno);
1400 }
1401 }
1402
1403 // done with OnError
1404 OnError = NULL;
1405 }
1406
1407 if (!UseOSErrorReporting) {
1408 // os::abort() will call abort hooks, try it first.
1409 static bool skip_os_abort = false;
1410 if (!skip_os_abort) {
1411 skip_os_abort = true;
1412 bool dump_core = should_report_bug(_id);
1413 os::abort(dump_core && CreateCoredumpOnCrash, _siginfo, _context);
1414 }
1415
1416 // if os::abort() doesn't abort, try os::die();
1417 os::die();
1418 }
1419 }
1420
1421 /*
1422 * OnOutOfMemoryError scripts/commands executed while VM is a safepoint - this
1423 * ensures utilities such as jmap can observe the process is a consistent state.
1424 */
1425 class VM_ReportJavaOutOfMemory : public VM_Operation {
1426 private:
1427 const char* _message;
1428 public:
1429 VM_ReportJavaOutOfMemory(const char* message) { _message = message; }
1430 VMOp_Type type() const { return VMOp_ReportJavaOutOfMemory; }
1431 void doit();
1432 };
1433
1434 void VM_ReportJavaOutOfMemory::doit() {
1435 // Don't allocate large buffer on stack
1436 static char buffer[O_BUFLEN];
1437
1438 tty->print_cr("#");
1439 tty->print_cr("# java.lang.OutOfMemoryError: %s", _message);
1440 tty->print_cr("# -XX:OnOutOfMemoryError=\"%s\"", OnOutOfMemoryError);
1441
1442 // make heap parsability
1443 Universe::heap()->ensure_parsability(false); // no need to retire TLABs
1444
1445 char* cmd;
1446 const char* ptr = OnOutOfMemoryError;
1447 while ((cmd = next_OnError_command(buffer, sizeof(buffer), &ptr)) != NULL){
1448 tty->print("# Executing ");
1449 #if defined(LINUX)
1450 tty->print ("/bin/sh -c ");
1451 #elif defined(SOLARIS)
1452 tty->print ("/usr/bin/sh -c ");
1453 #endif
1454 tty->print_cr("\"%s\"...", cmd);
1455
1456 if (os::fork_and_exec(cmd) < 0) {
1457 tty->print_cr("os::fork_and_exec failed: %s (%s=%d)",
1458 os::strerror(errno), os::errno_name(errno), errno);
1459 }
1460 }
1461 }
1462
1463 void VMError::report_java_out_of_memory(const char* message) {
1464 if (OnOutOfMemoryError && OnOutOfMemoryError[0]) {
1465 MutexLocker ml(Heap_lock);
1466 VM_ReportJavaOutOfMemory op(message);
1467 VMThread::execute(&op);
1468 }
1469 }
1470
1471 void VMError::show_message_box(char *buf, int buflen) {
1472 bool yes;
1473 do {
1474 error_string(buf, buflen);
1475 yes = os::start_debugging(buf,buflen);
1476 } while (yes);
1477 }
1478
1479 // Timeout handling: check if a timeout happened (either a single step did
1480 // timeout or the whole of error reporting hit ErrorLogTimeout). Interrupt
1481 // the reporting thread if that is the case.
1482 bool VMError::check_timeout() {
1483
1484 if (ErrorLogTimeout == 0) {
1485 return false;
1486 }
1487
1488 // Do not check for timeouts if we still have a message box to show to the
1489 // user or if there are OnError handlers to be run.
1490 if (ShowMessageBoxOnError
1491 || (OnError != NULL && OnError[0] != '\0')
1492 || Arguments::abort_hook() != NULL) {
1493 return false;
1494 }
1495
1496 const jlong reporting_start_time_l = get_timestamp(&reporting_start_time);
1497 const jlong now = os::javaTimeMillis();
1498 if (reporting_start_time_l > 0) {
1499 const jlong end = reporting_start_time_l + ErrorLogTimeout * 1000;
1500 if (end <= now) {
1501 reporting_timeout = true;
1502 VMError::interrupt_reporting_thread();
1503 return true; // global timeout
1504 }
1505 }
1506
1507 const jlong step_start_time_l = get_timestamp(&step_start_time);
1508 if (step_start_time_l > 0) {
1509 // A step times out after half of the total timeout. Steps are mostly fast unless they
1510 // hang for some reason, so this simple rule allows for one hanging step and still
1511 // leaves time enough for the rest of the steps to finish.
1512 const jlong end = step_start_time_l + ErrorLogTimeout * 1000 / 2;
1513 if (end <= now) {
1514 step_timeout = true;
1515 VMError::interrupt_reporting_thread();
1516 return false; // (Not a global timeout)
1517 }
1518 }
1519
1520 return false;
1521
1522 }
1523