Mercurial > hg > graal-compiler
annotate src/share/vm/utilities/vmError.cpp @ 521:4db4e58c16bd
6791815: Fix for 6471657 can cause deadlock on non-Solaris platforms when initializing direct buffer support
Summary: Place the state transition inside the loop so that the VMThread could proceed for safepoint
Reviewed-by: dholmes, never, acorn
author | xlu |
---|---|
date | Tue, 13 Jan 2009 12:08:43 -0800 |
parents | dabd8d202164 |
children | 0fbdb4381b99 dbbe28fc66b5 |
rev | line source |
---|---|
0 | 1 /* |
196 | 2 * Copyright 2003-2008 Sun Microsystems, Inc. All Rights Reserved. |
0 | 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, | |
20 * CA 95054 USA or visit www.sun.com if you need additional information or | |
21 * have any questions. | |
22 * | |
23 */ | |
24 | |
25 # include "incls/_precompiled.incl" | |
26 # include "incls/_vmError.cpp.incl" | |
27 | |
28 // List of environment variables that should be reported in error log file. | |
29 const char *env_list[] = { | |
30 // All platforms | |
31 "JAVA_HOME", "JRE_HOME", "JAVA_TOOL_OPTIONS", "_JAVA_OPTIONS", "CLASSPATH", | |
32 "JAVA_COMPILER", "PATH", "USERNAME", | |
33 | |
34 // Env variables that are defined on Solaris/Linux | |
35 "LD_LIBRARY_PATH", "LD_PRELOAD", "SHELL", "DISPLAY", | |
36 "HOSTTYPE", "OSTYPE", "ARCH", "MACHTYPE", | |
37 | |
38 // defined on Linux | |
39 "LD_ASSUME_KERNEL", "_JAVA_SR_SIGNUM", | |
40 | |
41 // defined on Windows | |
42 "OS", "PROCESSOR_IDENTIFIER", "_ALT_JAVA_HOME_DIR", | |
43 | |
44 (const char *)0 | |
45 }; | |
46 | |
47 // Fatal error handler for internal errors and crashes. | |
48 // | |
49 // The default behavior of fatal error handler is to print a brief message | |
50 // to standard out (defaultStream::output_fd()), then save detailed information | |
51 // into an error report file (hs_err_pid<pid>.log) and abort VM. If multiple | |
52 // threads are having troubles at the same time, only one error is reported. | |
53 // The thread that is reporting error will abort VM when it is done, all other | |
54 // threads are blocked forever inside report_and_die(). | |
55 | |
56 // Constructor for crashes | |
57 VMError::VMError(Thread* thread, int sig, address pc, void* siginfo, void* context) { | |
58 _thread = thread; | |
59 _id = sig; | |
60 _pc = pc; | |
61 _siginfo = siginfo; | |
62 _context = context; | |
63 | |
64 _verbose = false; | |
65 _current_step = 0; | |
66 _current_step_info = NULL; | |
67 | |
68 _message = ""; | |
69 _filename = NULL; | |
70 _lineno = 0; | |
71 | |
72 _size = 0; | |
73 } | |
74 | |
75 // Constructor for internal errors | |
76 VMError::VMError(Thread* thread, const char* message, const char* filename, int lineno) { | |
77 _thread = thread; | |
78 _id = internal_error; // set it to a value that's not an OS exception/signal | |
79 _filename = filename; | |
80 _lineno = lineno; | |
81 _message = message; | |
82 | |
83 _verbose = false; | |
84 _current_step = 0; | |
85 _current_step_info = NULL; | |
86 | |
87 _pc = NULL; | |
88 _siginfo = NULL; | |
89 _context = NULL; | |
90 | |
91 _size = 0; | |
92 } | |
93 | |
94 // Constructor for OOM errors | |
95 VMError::VMError(Thread* thread, size_t size, const char* message, const char* filename, int lineno) { | |
96 _thread = thread; | |
97 _id = oom_error; // set it to a value that's not an OS exception/signal | |
98 _filename = filename; | |
99 _lineno = lineno; | |
100 _message = message; | |
101 | |
102 _verbose = false; | |
103 _current_step = 0; | |
104 _current_step_info = NULL; | |
105 | |
106 _pc = NULL; | |
107 _siginfo = NULL; | |
108 _context = NULL; | |
109 | |
110 _size = size; | |
111 } | |
112 | |
113 | |
114 // Constructor for non-fatal errors | |
115 VMError::VMError(const char* message) { | |
116 _thread = NULL; | |
117 _id = internal_error; // set it to a value that's not an OS exception/signal | |
118 _filename = NULL; | |
119 _lineno = 0; | |
120 _message = message; | |
121 | |
122 _verbose = false; | |
123 _current_step = 0; | |
124 _current_step_info = NULL; | |
125 | |
126 _pc = NULL; | |
127 _siginfo = NULL; | |
128 _context = NULL; | |
129 | |
130 _size = 0; | |
131 } | |
132 | |
133 // -XX:OnError=<string>, where <string> can be a list of commands, separated | |
134 // by ';'. "%p" is replaced by current process id (pid); "%%" is replaced by | |
135 // a single "%". Some examples: | |
136 // | |
137 // -XX:OnError="pmap %p" // show memory map | |
138 // -XX:OnError="gcore %p; dbx - %p" // dump core and launch debugger | |
139 // -XX:OnError="cat hs_err_pid%p.log | mail my_email@sun.com" | |
140 // -XX:OnError="kill -9 %p" // ?#!@# | |
141 | |
142 // A simple parser for -XX:OnError, usage: | |
143 // ptr = OnError; | |
144 // while ((cmd = next_OnError_command(buffer, sizeof(buffer), &ptr) != NULL) | |
145 // ... ... | |
146 static char* next_OnError_command(char* buf, int buflen, const char** ptr) { | |
147 if (ptr == NULL || *ptr == NULL) return NULL; | |
148 | |
149 const char* cmd = *ptr; | |
150 | |
151 // skip leading blanks or ';' | |
152 while (*cmd == ' ' || *cmd == ';') cmd++; | |
153 | |
154 if (*cmd == '\0') return NULL; | |
155 | |
156 const char * cmdend = cmd; | |
157 while (*cmdend != '\0' && *cmdend != ';') cmdend++; | |
158 | |
159 Arguments::copy_expand_pid(cmd, cmdend - cmd, buf, buflen); | |
160 | |
161 *ptr = (*cmdend == '\0' ? cmdend : cmdend + 1); | |
162 return buf; | |
163 } | |
164 | |
165 | |
166 static void print_bug_submit_message(outputStream *out, Thread *thread) { | |
167 if (out == NULL) return; | |
168 out->print_raw_cr("# If you would like to submit a bug report, please visit:"); | |
169 out->print_raw ("# "); | |
170 out->print_raw_cr(Arguments::java_vendor_url_bug()); | |
171 // If the crash is in native code, encourage user to submit a bug to the | |
172 // provider of that code. | |
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173 if (thread && thread->is_Java_thread() && |
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174 !thread->is_hidden_from_external_view()) { |
0 | 175 JavaThread* jt = (JavaThread*)thread; |
176 if (jt->thread_state() == _thread_in_native) { | |
177 out->print_cr("# The crash happened outside the Java Virtual Machine in native code.\n# See problematic frame for where to report the bug."); | |
178 } | |
179 } | |
180 out->print_raw_cr("#"); | |
181 } | |
182 | |
183 | |
184 // Return a string to describe the error | |
185 char* VMError::error_string(char* buf, int buflen) { | |
186 char signame_buf[64]; | |
187 const char *signame = os::exception_name(_id, signame_buf, sizeof(signame_buf)); | |
188 | |
189 if (signame) { | |
190 jio_snprintf(buf, buflen, | |
191 "%s (0x%x) at pc=" PTR_FORMAT ", pid=%d, tid=" UINTX_FORMAT, | |
192 signame, _id, _pc, | |
193 os::current_process_id(), os::current_thread_id()); | |
194 } else { | |
195 if (_filename != NULL && _lineno > 0) { | |
196 // skip directory names | |
197 char separator = os::file_separator()[0]; | |
198 const char *p = strrchr(_filename, separator); | |
199 | |
200 jio_snprintf(buf, buflen, | |
201 "Internal Error at %s:%d, pid=%d, tid=" UINTX_FORMAT " \nError: %s", | |
202 p ? p + 1 : _filename, _lineno, | |
203 os::current_process_id(), os::current_thread_id(), | |
204 _message ? _message : ""); | |
205 } else { | |
206 jio_snprintf(buf, buflen, | |
207 "Internal Error (0x%x), pid=%d, tid=" UINTX_FORMAT, | |
208 _id, os::current_process_id(), os::current_thread_id()); | |
209 } | |
210 } | |
211 | |
212 return buf; | |
213 } | |
214 | |
215 | |
216 // This is the main function to report a fatal error. Only one thread can | |
217 // call this function, so we don't need to worry about MT-safety. But it's | |
218 // possible that the error handler itself may crash or die on an internal | |
219 // error, for example, when the stack/heap is badly damaged. We must be | |
220 // able to handle recursive errors that happen inside error handler. | |
221 // | |
222 // Error reporting is done in several steps. If a crash or internal error | |
223 // occurred when reporting an error, the nested signal/exception handler | |
224 // can skip steps that are already (or partially) done. Error reporting will | |
225 // continue from the next step. This allows us to retrieve and print | |
226 // information that may be unsafe to get after a fatal error. If it happens, | |
227 // you may find nested report_and_die() frames when you look at the stack | |
228 // in a debugger. | |
229 // | |
230 // In general, a hang in error handler is much worse than a crash or internal | |
231 // error, as it's harder to recover from a hang. Deadlock can happen if we | |
232 // try to grab a lock that is already owned by current thread, or if the | |
233 // owner is blocked forever (e.g. in os::infinite_sleep()). If possible, the | |
234 // error handler and all the functions it called should avoid grabbing any | |
235 // lock. An important thing to notice is that memory allocation needs a lock. | |
236 // | |
237 // We should avoid using large stack allocated buffers. Many errors happen | |
238 // when stack space is already low. Making things even worse is that there | |
239 // could be nested report_and_die() calls on stack (see above). Only one | |
240 // thread can report error, so large buffers are statically allocated in data | |
241 // segment. | |
242 | |
243 void VMError::report(outputStream* st) { | |
244 # define BEGIN if (_current_step == 0) { _current_step = 1; | |
245 # define STEP(n, s) } if (_current_step < n) { _current_step = n; _current_step_info = s; | |
246 # define END } | |
247 | |
248 // don't allocate large buffer on stack | |
249 static char buf[O_BUFLEN]; | |
250 | |
251 BEGIN | |
252 | |
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253 STEP(10, "(printing fatal error message)") |
0 | 254 |
255 st->print_cr("#"); | |
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256 st->print_cr("# A fatal error has been detected by the Java Runtime Environment:"); |
0 | 257 |
258 STEP(15, "(printing type of error)") | |
259 | |
260 switch(_id) { | |
261 case oom_error: | |
262 st->print_cr("#"); | |
263 st->print("# java.lang.OutOfMemoryError: "); | |
264 if (_size) { | |
265 st->print("requested "); | |
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266 sprintf(buf,SIZE_FORMAT,_size); |
0 | 267 st->print(buf); |
268 st->print(" bytes"); | |
269 if (_message != NULL) { | |
270 st->print(" for "); | |
271 st->print(_message); | |
272 } | |
273 st->print_cr(". Out of swap space?"); | |
274 } else { | |
275 if (_message != NULL) | |
276 st->print_cr(_message); | |
277 } | |
278 break; | |
279 case internal_error: | |
280 default: | |
281 break; | |
282 } | |
283 | |
284 STEP(20, "(printing exception/signal name)") | |
285 | |
286 st->print_cr("#"); | |
287 st->print("# "); | |
288 // Is it an OS exception/signal? | |
289 if (os::exception_name(_id, buf, sizeof(buf))) { | |
290 st->print("%s", buf); | |
291 st->print(" (0x%x)", _id); // signal number | |
292 st->print(" at pc=" PTR_FORMAT, _pc); | |
293 } else { | |
294 st->print("Internal Error"); | |
295 if (_filename != NULL && _lineno > 0) { | |
296 #ifdef PRODUCT | |
297 // In product mode chop off pathname? | |
298 char separator = os::file_separator()[0]; | |
299 const char *p = strrchr(_filename, separator); | |
300 const char *file = p ? p+1 : _filename; | |
301 #else | |
302 const char *file = _filename; | |
303 #endif | |
304 size_t len = strlen(file); | |
305 size_t buflen = sizeof(buf); | |
306 | |
307 strncpy(buf, file, buflen); | |
308 if (len + 10 < buflen) { | |
309 sprintf(buf + len, ":" SIZE_FORMAT, _lineno); | |
310 } | |
311 st->print(" (%s)", buf); | |
312 } else { | |
313 st->print(" (0x%x)", _id); | |
314 } | |
315 } | |
316 | |
317 STEP(30, "(printing current thread and pid)") | |
318 | |
319 // process id, thread id | |
320 st->print(", pid=%d", os::current_process_id()); | |
321 st->print(", tid=" UINTX_FORMAT, os::current_thread_id()); | |
322 st->cr(); | |
323 | |
324 STEP(40, "(printing error message)") | |
325 | |
326 // error message | |
327 if (_message && _message[0] != '\0') { | |
328 st->print_cr("# Error: %s", _message); | |
329 } | |
330 | |
331 STEP(50, "(printing Java version string)") | |
332 | |
333 // VM version | |
334 st->print_cr("#"); | |
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335 JDK_Version::current().to_string(buf, sizeof(buf)); |
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336 st->print_cr("# JRE version: %s", buf); |
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337 st->print_cr("# Java VM: %s (%s %s %s %s)", |
0 | 338 Abstract_VM_Version::vm_name(), |
339 Abstract_VM_Version::vm_release(), | |
340 Abstract_VM_Version::vm_info_string(), | |
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341 Abstract_VM_Version::vm_platform_string(), |
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342 UseCompressedOops ? "compressed oops" : "" |
0 | 343 ); |
344 | |
345 STEP(60, "(printing problematic frame)") | |
346 | |
347 // Print current frame if we have a context (i.e. it's a crash) | |
348 if (_context) { | |
349 st->print_cr("# Problematic frame:"); | |
350 st->print("# "); | |
351 frame fr = os::fetch_frame_from_context(_context); | |
352 fr.print_on_error(st, buf, sizeof(buf)); | |
353 st->cr(); | |
354 st->print_cr("#"); | |
355 } | |
356 | |
357 STEP(65, "(printing bug submit message)") | |
358 | |
359 if (_verbose) print_bug_submit_message(st, _thread); | |
360 | |
361 STEP(70, "(printing thread)" ) | |
362 | |
363 if (_verbose) { | |
364 st->cr(); | |
365 st->print_cr("--------------- T H R E A D ---------------"); | |
366 st->cr(); | |
367 } | |
368 | |
369 STEP(80, "(printing current thread)" ) | |
370 | |
371 // current thread | |
372 if (_verbose) { | |
373 if (_thread) { | |
374 st->print("Current thread (" PTR_FORMAT "): ", _thread); | |
375 _thread->print_on_error(st, buf, sizeof(buf)); | |
376 st->cr(); | |
377 } else { | |
378 st->print_cr("Current thread is native thread"); | |
379 } | |
380 st->cr(); | |
381 } | |
382 | |
383 STEP(90, "(printing siginfo)" ) | |
384 | |
385 // signal no, signal code, address that caused the fault | |
386 if (_verbose && _siginfo) { | |
387 os::print_siginfo(st, _siginfo); | |
388 st->cr(); | |
389 } | |
390 | |
391 STEP(100, "(printing registers, top of stack, instructions near pc)") | |
392 | |
393 // registers, top of stack, instructions near pc | |
394 if (_verbose && _context) { | |
395 os::print_context(st, _context); | |
396 st->cr(); | |
397 } | |
398 | |
399 STEP(110, "(printing stack bounds)" ) | |
400 | |
401 if (_verbose) { | |
402 st->print("Stack: "); | |
403 | |
404 address stack_top; | |
405 size_t stack_size; | |
406 | |
407 if (_thread) { | |
408 stack_top = _thread->stack_base(); | |
409 stack_size = _thread->stack_size(); | |
410 } else { | |
411 stack_top = os::current_stack_base(); | |
412 stack_size = os::current_stack_size(); | |
413 } | |
414 | |
415 address stack_bottom = stack_top - stack_size; | |
416 st->print("[" PTR_FORMAT "," PTR_FORMAT "]", stack_bottom, stack_top); | |
417 | |
418 frame fr = _context ? os::fetch_frame_from_context(_context) | |
419 : os::current_frame(); | |
420 | |
421 if (fr.sp()) { | |
422 st->print(", sp=" PTR_FORMAT, fr.sp()); | |
423 st->print(", free space=%dk", | |
424 ((intptr_t)fr.sp() - (intptr_t)stack_bottom) >> 10); | |
425 } | |
426 | |
427 st->cr(); | |
428 } | |
429 | |
430 STEP(120, "(printing native stack)" ) | |
431 | |
432 if (_verbose) { | |
433 frame fr = _context ? os::fetch_frame_from_context(_context) | |
434 : os::current_frame(); | |
435 | |
436 // see if it's a valid frame | |
437 if (fr.pc()) { | |
438 st->print_cr("Native frames: (J=compiled Java code, j=interpreted, Vv=VM code, C=native code)"); | |
439 | |
440 int count = 0; | |
441 | |
442 while (count++ < StackPrintLimit) { | |
443 fr.print_on_error(st, buf, sizeof(buf)); | |
444 st->cr(); | |
445 if (os::is_first_C_frame(&fr)) break; | |
446 fr = os::get_sender_for_C_frame(&fr); | |
447 } | |
448 | |
449 if (count > StackPrintLimit) { | |
450 st->print_cr("...<more frames>..."); | |
451 } | |
452 | |
453 st->cr(); | |
454 } | |
455 } | |
456 | |
457 STEP(130, "(printing Java stack)" ) | |
458 | |
459 if (_verbose && _thread && _thread->is_Java_thread()) { | |
460 JavaThread* jt = (JavaThread*)_thread; | |
461 if (jt->has_last_Java_frame()) { | |
462 st->print_cr("Java frames: (J=compiled Java code, j=interpreted, Vv=VM code)"); | |
463 for(StackFrameStream sfs(jt); !sfs.is_done(); sfs.next()) { | |
464 sfs.current()->print_on_error(st, buf, sizeof(buf)); | |
465 st->cr(); | |
466 } | |
467 } | |
468 } | |
469 | |
470 STEP(140, "(printing VM operation)" ) | |
471 | |
472 if (_verbose && _thread && _thread->is_VM_thread()) { | |
473 VMThread* t = (VMThread*)_thread; | |
474 VM_Operation* op = t->vm_operation(); | |
475 if (op) { | |
476 op->print_on_error(st); | |
477 st->cr(); | |
478 st->cr(); | |
479 } | |
480 } | |
481 | |
482 STEP(150, "(printing current compile task)" ) | |
483 | |
484 if (_verbose && _thread && _thread->is_Compiler_thread()) { | |
485 CompilerThread* t = (CompilerThread*)_thread; | |
486 if (t->task()) { | |
487 st->cr(); | |
488 st->print_cr("Current CompileTask:"); | |
489 t->task()->print_line_on_error(st, buf, sizeof(buf)); | |
490 st->cr(); | |
491 } | |
492 } | |
493 | |
494 STEP(160, "(printing process)" ) | |
495 | |
496 if (_verbose) { | |
497 st->cr(); | |
498 st->print_cr("--------------- P R O C E S S ---------------"); | |
499 st->cr(); | |
500 } | |
501 | |
502 STEP(170, "(printing all threads)" ) | |
503 | |
504 // all threads | |
505 if (_verbose && _thread) { | |
506 Threads::print_on_error(st, _thread, buf, sizeof(buf)); | |
507 st->cr(); | |
508 } | |
509 | |
510 STEP(175, "(printing VM state)" ) | |
511 | |
512 if (_verbose) { | |
513 // Safepoint state | |
514 st->print("VM state:"); | |
515 | |
516 if (SafepointSynchronize::is_synchronizing()) st->print("synchronizing"); | |
517 else if (SafepointSynchronize::is_at_safepoint()) st->print("at safepoint"); | |
518 else st->print("not at safepoint"); | |
519 | |
520 // Also see if error occurred during initialization or shutdown | |
521 if (!Universe::is_fully_initialized()) { | |
522 st->print(" (not fully initialized)"); | |
523 } else if (VM_Exit::vm_exited()) { | |
524 st->print(" (shutting down)"); | |
525 } else { | |
526 st->print(" (normal execution)"); | |
527 } | |
528 st->cr(); | |
529 st->cr(); | |
530 } | |
531 | |
532 STEP(180, "(printing owned locks on error)" ) | |
533 | |
534 // mutexes/monitors that currently have an owner | |
535 if (_verbose) { | |
536 print_owned_locks_on_error(st); | |
537 st->cr(); | |
538 } | |
539 | |
540 STEP(190, "(printing heap information)" ) | |
541 | |
542 if (_verbose && Universe::is_fully_initialized()) { | |
543 // print heap information before vm abort | |
544 Universe::print_on(st); | |
545 st->cr(); | |
546 } | |
547 | |
548 STEP(200, "(printing dynamic libraries)" ) | |
549 | |
550 if (_verbose) { | |
551 // dynamic libraries, or memory map | |
552 os::print_dll_info(st); | |
553 st->cr(); | |
554 } | |
555 | |
556 STEP(210, "(printing VM options)" ) | |
557 | |
558 if (_verbose) { | |
559 // VM options | |
560 Arguments::print_on(st); | |
561 st->cr(); | |
562 } | |
563 | |
564 STEP(220, "(printing environment variables)" ) | |
565 | |
566 if (_verbose) { | |
567 os::print_environment_variables(st, env_list, buf, sizeof(buf)); | |
568 st->cr(); | |
569 } | |
570 | |
571 STEP(225, "(printing signal handlers)" ) | |
572 | |
573 if (_verbose) { | |
574 os::print_signal_handlers(st, buf, sizeof(buf)); | |
575 st->cr(); | |
576 } | |
577 | |
578 STEP(230, "" ) | |
579 | |
580 if (_verbose) { | |
581 st->cr(); | |
582 st->print_cr("--------------- S Y S T E M ---------------"); | |
583 st->cr(); | |
584 } | |
585 | |
586 STEP(240, "(printing OS information)" ) | |
587 | |
588 if (_verbose) { | |
589 os::print_os_info(st); | |
590 st->cr(); | |
591 } | |
592 | |
593 STEP(250, "(printing CPU info)" ) | |
594 if (_verbose) { | |
595 os::print_cpu_info(st); | |
596 st->cr(); | |
597 } | |
598 | |
599 STEP(260, "(printing memory info)" ) | |
600 | |
601 if (_verbose) { | |
602 os::print_memory_info(st); | |
603 st->cr(); | |
604 } | |
605 | |
606 STEP(270, "(printing internal vm info)" ) | |
607 | |
608 if (_verbose) { | |
609 st->print_cr("vm_info: %s", Abstract_VM_Version::internal_vm_info_string()); | |
610 st->cr(); | |
611 } | |
612 | |
613 STEP(280, "(printing date and time)" ) | |
614 | |
615 if (_verbose) { | |
616 os::print_date_and_time(st); | |
617 st->cr(); | |
618 } | |
619 | |
620 END | |
621 | |
622 # undef BEGIN | |
623 # undef STEP | |
624 # undef END | |
625 } | |
626 | |
627 | |
628 void VMError::report_and_die() { | |
629 // Don't allocate large buffer on stack | |
630 static char buffer[O_BUFLEN]; | |
631 | |
632 // First error, and its thread id. We must be able to handle native thread, | |
633 // so use thread id instead of Thread* to identify thread. | |
634 static VMError* first_error; | |
635 static jlong first_error_tid; | |
636 | |
637 // An error could happen before tty is initialized or after it has been | |
638 // destroyed. Here we use a very simple unbuffered fdStream for printing. | |
639 // Only out.print_raw() and out.print_raw_cr() should be used, as other | |
640 // printing methods need to allocate large buffer on stack. To format a | |
641 // string, use jio_snprintf() with a static buffer or use staticBufferStream. | |
642 static fdStream out(defaultStream::output_fd()); | |
643 | |
644 // How many errors occurred in error handler when reporting first_error. | |
645 static int recursive_error_count; | |
646 | |
647 // We will first print a brief message to standard out (verbose = false), | |
648 // then save detailed information in log file (verbose = true). | |
649 static bool out_done = false; // done printing to standard out | |
650 static bool log_done = false; // done saving error log | |
651 static fdStream log; // error log | |
652 | |
653 if (SuppressFatalErrorMessage) { | |
654 os::abort(); | |
655 } | |
656 jlong mytid = os::current_thread_id(); | |
657 if (first_error == NULL && | |
658 Atomic::cmpxchg_ptr(this, &first_error, NULL) == NULL) { | |
659 | |
660 // first time | |
661 first_error_tid = mytid; | |
662 set_error_reported(); | |
663 | |
664 if (ShowMessageBoxOnError) { | |
665 show_message_box(buffer, sizeof(buffer)); | |
666 | |
667 // User has asked JVM to abort. Reset ShowMessageBoxOnError so the | |
668 // WatcherThread can kill JVM if the error handler hangs. | |
669 ShowMessageBoxOnError = false; | |
670 } | |
671 | |
672 // reset signal handlers or exception filter; make sure recursive crashes | |
673 // are handled properly. | |
674 reset_signal_handlers(); | |
675 | |
676 } else { | |
511
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677 // If UseOsErrorReporting we call this for each level of the call stack |
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678 // while searching for the exception handler. Only the first level needs |
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679 // to be reported. |
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680 if (UseOSErrorReporting && log_done) return; |
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681 |
0 | 682 // This is not the first error, see if it happened in a different thread |
683 // or in the same thread during error reporting. | |
684 if (first_error_tid != mytid) { | |
685 jio_snprintf(buffer, sizeof(buffer), | |
686 "[thread " INT64_FORMAT " also had an error]", | |
687 mytid); | |
688 out.print_raw_cr(buffer); | |
689 | |
690 // error reporting is not MT-safe, block current thread | |
691 os::infinite_sleep(); | |
692 | |
693 } else { | |
694 if (recursive_error_count++ > 30) { | |
695 out.print_raw_cr("[Too many errors, abort]"); | |
696 os::die(); | |
697 } | |
698 | |
699 jio_snprintf(buffer, sizeof(buffer), | |
700 "[error occurred during error reporting %s, id 0x%x]", | |
701 first_error ? first_error->_current_step_info : "", | |
702 _id); | |
703 if (log.is_open()) { | |
704 log.cr(); | |
705 log.print_raw_cr(buffer); | |
706 log.cr(); | |
707 } else { | |
708 out.cr(); | |
709 out.print_raw_cr(buffer); | |
710 out.cr(); | |
711 } | |
712 } | |
713 } | |
714 | |
715 // print to screen | |
716 if (!out_done) { | |
717 first_error->_verbose = false; | |
718 | |
719 staticBufferStream sbs(buffer, sizeof(buffer), &out); | |
720 first_error->report(&sbs); | |
721 | |
722 out_done = true; | |
723 | |
724 first_error->_current_step = 0; // reset current_step | |
725 first_error->_current_step_info = ""; // reset current_step string | |
726 } | |
727 | |
728 // print to error log file | |
729 if (!log_done) { | |
730 first_error->_verbose = true; | |
731 | |
732 // see if log file is already open | |
733 if (!log.is_open()) { | |
734 // open log file | |
735 int fd = -1; | |
736 | |
737 if (ErrorFile != NULL) { | |
738 bool copy_ok = | |
739 Arguments::copy_expand_pid(ErrorFile, strlen(ErrorFile), buffer, sizeof(buffer)); | |
740 if (copy_ok) { | |
741 fd = open(buffer, O_WRONLY | O_CREAT | O_TRUNC, 0666); | |
742 } | |
743 } | |
744 | |
745 if (fd == -1) { | |
746 const char *cwd = os::get_current_directory(buffer, sizeof(buffer)); | |
747 size_t len = strlen(cwd); | |
748 // either user didn't specify, or the user's location failed, | |
749 // so use the default name in the current directory | |
750 jio_snprintf(&buffer[len], sizeof(buffer)-len, "%shs_err_pid%u.log", | |
751 os::file_separator(), os::current_process_id()); | |
752 fd = open(buffer, O_WRONLY | O_CREAT | O_TRUNC, 0666); | |
753 } | |
754 | |
755 if (fd == -1) { | |
756 // try temp directory | |
757 const char * tmpdir = os::get_temp_directory(); | |
758 jio_snprintf(buffer, sizeof(buffer), "%shs_err_pid%u.log", | |
759 (tmpdir ? tmpdir : ""), os::current_process_id()); | |
760 fd = open(buffer, O_WRONLY | O_CREAT | O_TRUNC, 0666); | |
761 } | |
762 | |
763 if (fd != -1) { | |
764 out.print_raw("# An error report file with more information is saved as:\n# "); | |
765 out.print_raw_cr(buffer); | |
766 os::set_error_file(buffer); | |
767 | |
768 log.set_fd(fd); | |
769 } else { | |
770 out.print_raw_cr("# Can not save log file, dump to screen.."); | |
771 log.set_fd(defaultStream::output_fd()); | |
772 } | |
773 } | |
774 | |
775 staticBufferStream sbs(buffer, O_BUFLEN, &log); | |
776 first_error->report(&sbs); | |
777 first_error->_current_step = 0; // reset current_step | |
778 first_error->_current_step_info = ""; // reset current_step string | |
779 | |
780 if (log.fd() != defaultStream::output_fd()) { | |
781 close(log.fd()); | |
782 } | |
783 | |
784 log.set_fd(-1); | |
785 log_done = true; | |
786 } | |
787 | |
788 | |
789 static bool skip_OnError = false; | |
790 if (!skip_OnError && OnError && OnError[0]) { | |
791 skip_OnError = true; | |
792 | |
793 out.print_raw_cr("#"); | |
794 out.print_raw ("# -XX:OnError=\""); | |
795 out.print_raw (OnError); | |
796 out.print_raw_cr("\""); | |
797 | |
798 char* cmd; | |
799 const char* ptr = OnError; | |
800 while ((cmd = next_OnError_command(buffer, sizeof(buffer), &ptr)) != NULL){ | |
801 out.print_raw ("# Executing "); | |
802 #if defined(LINUX) | |
803 out.print_raw ("/bin/sh -c "); | |
804 #elif defined(SOLARIS) | |
805 out.print_raw ("/usr/bin/sh -c "); | |
806 #endif | |
807 out.print_raw ("\""); | |
808 out.print_raw (cmd); | |
809 out.print_raw_cr("\" ..."); | |
810 | |
811 os::fork_and_exec(cmd); | |
812 } | |
813 | |
814 // done with OnError | |
815 OnError = NULL; | |
816 } | |
817 | |
818 static bool skip_bug_url = false; | |
819 if (!skip_bug_url) { | |
820 skip_bug_url = true; | |
821 | |
822 out.print_raw_cr("#"); | |
823 print_bug_submit_message(&out, _thread); | |
824 } | |
825 | |
826 if (!UseOSErrorReporting) { | |
827 // os::abort() will call abort hooks, try it first. | |
828 static bool skip_os_abort = false; | |
829 if (!skip_os_abort) { | |
830 skip_os_abort = true; | |
831 os::abort(); | |
832 } | |
833 | |
834 // if os::abort() doesn't abort, try os::die(); | |
835 os::die(); | |
836 } | |
837 } | |
838 | |
839 /* | |
840 * OnOutOfMemoryError scripts/commands executed while VM is a safepoint - this | |
841 * ensures utilities such as jmap can observe the process is a consistent state. | |
842 */ | |
843 class VM_ReportJavaOutOfMemory : public VM_Operation { | |
844 private: | |
845 VMError *_err; | |
846 public: | |
847 VM_ReportJavaOutOfMemory(VMError *err) { _err = err; } | |
848 VMOp_Type type() const { return VMOp_ReportJavaOutOfMemory; } | |
849 void doit(); | |
850 }; | |
851 | |
852 void VM_ReportJavaOutOfMemory::doit() { | |
853 // Don't allocate large buffer on stack | |
854 static char buffer[O_BUFLEN]; | |
855 | |
856 tty->print_cr("#"); | |
857 tty->print_cr("# java.lang.OutOfMemoryError: %s", _err->message()); | |
858 tty->print_cr("# -XX:OnOutOfMemoryError=\"%s\"", OnOutOfMemoryError); | |
859 | |
860 // make heap parsability | |
861 Universe::heap()->ensure_parsability(false); // no need to retire TLABs | |
862 | |
863 char* cmd; | |
864 const char* ptr = OnOutOfMemoryError; | |
865 while ((cmd = next_OnError_command(buffer, sizeof(buffer), &ptr)) != NULL){ | |
866 tty->print("# Executing "); | |
867 #if defined(LINUX) | |
868 tty->print ("/bin/sh -c "); | |
869 #elif defined(SOLARIS) | |
870 tty->print ("/usr/bin/sh -c "); | |
871 #endif | |
872 tty->print_cr("\"%s\"...", cmd); | |
873 | |
874 os::fork_and_exec(cmd); | |
875 } | |
876 } | |
877 | |
878 void VMError::report_java_out_of_memory() { | |
879 if (OnOutOfMemoryError && OnOutOfMemoryError[0]) { | |
880 MutexLocker ml(Heap_lock); | |
881 VM_ReportJavaOutOfMemory op(this); | |
882 VMThread::execute(&op); | |
883 } | |
884 } |