1 /*
2 * Copyright (c) 2000-2006 Apple Computer, Inc. All rights reserved.
3 *
4 * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
5 *
6 * This file contains Original Code and/or Modifications of Original Code
7 * as defined in and that are subject to the Apple Public Source License
8 * Version 2.0 (the 'License'). You may not use this file except in
9 * compliance with the License. The rights granted to you under the License
10 * may not be used to create, or enable the creation or redistribution of,
11 * unlawful or unlicensed copies of an Apple operating system, or to
12 * circumvent, violate, or enable the circumvention or violation of, any
13 * terms of an Apple operating system software license agreement.
14 *
15 * Please obtain a copy of the License at
16 * http://www.opensource.apple.com/apsl/ and read it before using this file.
17 *
18 * The Original Code and all software distributed under the License are
19 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
20 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
21 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
22 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
23 * Please see the License for the specific language governing rights and
24 * limitations under the License.
25 *
26 * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
27 */
28 /*
29 * File: bsd/kern/kern_shutdown.c
30 *
31 * Copyright (C) 1989, NeXT, Inc.
32 *
33 */
34
35 #include <sys/param.h>
36 #include <sys/systm.h>
37 #include <sys/kernel.h>
38 #include <sys/vm.h>
39 #include <sys/proc_internal.h>
40 #include <sys/user.h>
41 #include <sys/reboot.h>
42 #include <sys/conf.h>
43 #include <sys/vnode_internal.h>
44 #include <sys/file_internal.h>
45 #include <sys/mbuf.h>
46 #include <sys/msgbuf.h>
47 #include <sys/ioctl.h>
48 #include <sys/signal.h>
49 #include <sys/tty.h>
50 #include <kern/task.h>
51 #include <sys/quota.h>
52 #include <vm/vm_kern.h>
53 #include <mach/vm_param.h>
54 #include <sys/filedesc.h>
55 #include <mach/host_priv.h>
56 #include <mach/host_reboot.h>
57
58 #include <security/audit/audit.h>
59
60 #include <kern/sched_prim.h> /* for thread_block() */
61 #include <kern/host.h> /* for host_priv_self() */
62 #include <net/if_var.h> /* for if_down_all() */
63 #include <sys/buf_internal.h> /* for count_busy_buffers() */
64 #include <sys/mount_internal.h> /* for vfs_unmountall() */
65 #include <mach/task.h> /* for task_suspend() */
66 #include <sys/sysproto.h> /* abused for sync() */
67 #include <kern/clock.h> /* for delay_for_interval() */
68 #include <libkern/OSAtomic.h>
69 #include <IOKit/IOPlatformExpert.h>
70 #include <IOKit/IOMessage.h>
71
72 #include <sys/kdebug.h>
73
74 uint32_t system_inshutdown = 0;
75
76 #if XNU_TARGET_OS_OSX
77 /* XXX should be in a header file somewhere, but isn't */
78 extern void (*unmountroot_pre_hook)(void);
79 #endif
80
81 unsigned int proc_shutdown_exitcount = 0;
82
83 static int sd_openlog(vfs_context_t);
84 static int sd_closelog(vfs_context_t);
85 static void sd_log(vfs_context_t, const char *, ...);
86 static void proc_shutdown(int only_non_dext);
87 static void zprint_panic_info(void);
88 extern void halt_log_enter(const char * what, const void * pc, uint64_t time);
89
90 #if DEVELOPMENT || DEBUG
91 extern boolean_t kdp_has_polled_corefile(void);
92 #endif /* DEVELOPMENT || DEBUG */
93
94 struct sd_filterargs {
95 int delayterm;
96 int shutdownstate;
97 int only_non_dext;
98 };
99
100
101 struct sd_iterargs {
102 int signo; /* the signal to be posted */
103 int setsdstate; /* shutdown state to be set */
104 int countproc; /* count processes on action */
105 int activecount; /* number of processes on which action was done */
106 };
107
108 static vnode_t sd_logvp = NULLVP;
109 static off_t sd_log_offset = 0;
110
111
112 static int sd_filt1(proc_t, void *);
113 static int sd_filt2(proc_t, void *);
114 static int sd_callback1(proc_t p, void * arg);
115 static int sd_callback2(proc_t p, void * arg);
116 static int sd_callback3(proc_t p, void * arg);
117
118 extern bool panic_include_zprint;
119 extern mach_memory_info_t *panic_kext_memory_info;
120 extern vm_size_t panic_kext_memory_size;
121
122 static void
zprint_panic_info(void)123 zprint_panic_info(void)
124 {
125 unsigned int num_sites;
126 kern_return_t kr;
127
128 panic_include_zprint = true;
129 panic_kext_memory_info = NULL;
130 panic_kext_memory_size = 0;
131
132 num_sites = vm_page_diagnose_estimate();
133 panic_kext_memory_size = num_sites * sizeof(panic_kext_memory_info[0]);
134
135 kr = kmem_alloc(kernel_map, (vm_offset_t *)&panic_kext_memory_info,
136 round_page(panic_kext_memory_size), KMA_DATA | KMA_ZERO,
137 VM_KERN_MEMORY_OSFMK);
138 if (kr != KERN_SUCCESS) {
139 panic_kext_memory_info = NULL;
140 return;
141 }
142
143 vm_page_diagnose(panic_kext_memory_info, num_sites, 0);
144 }
145
146 int
get_system_inshutdown()147 get_system_inshutdown()
148 {
149 return system_inshutdown;
150 }
151
152 __abortlike
153 static void
panic_kernel(int howto,char * message)154 panic_kernel(int howto, char *message)
155 {
156 if ((howto & RB_PANIC_ZPRINT) == RB_PANIC_ZPRINT) {
157 zprint_panic_info();
158 }
159 panic("userspace panic: %s", message);
160 }
161
162 extern boolean_t compressor_store_stop_compaction;
163 extern lck_mtx_t vm_swap_data_lock;
164 extern int vm_swapfile_create_thread_running;
165 extern int vm_swapfile_gc_thread_running;
166 extern uint32_t cl_sparse_push_error;
167
168 int
reboot_kernel(int howto,char * message)169 reboot_kernel(int howto, char *message)
170 {
171 int hostboot_option = 0;
172 uint64_t startTime;
173
174 if ((howto & (RB_PANIC | RB_QUICK)) == (RB_PANIC | RB_QUICK)) {
175 panic_kernel(howto, message);
176 }
177
178 if (!OSCompareAndSwap(0, 1, &system_inshutdown)) {
179 if ((howto & RB_QUICK) == RB_QUICK) {
180 goto force_reboot;
181 }
182 return EBUSY;
183 }
184
185 lck_mtx_lock(&vm_swap_data_lock);
186
187 /* Turn OFF future swapfile reclaimation / compaction etc.*/
188 compressor_store_stop_compaction = TRUE;
189
190 /* wait for any current swapfile work to end */
191 while (vm_swapfile_create_thread_running || vm_swapfile_gc_thread_running) {
192 assert_wait((event_t)&compressor_store_stop_compaction, THREAD_UNINT);
193
194 lck_mtx_unlock(&vm_swap_data_lock);
195
196 thread_block(THREAD_CONTINUE_NULL);
197
198 lck_mtx_lock(&vm_swap_data_lock);
199 }
200
201 lck_mtx_unlock(&vm_swap_data_lock);
202
203 /*
204 * Notify the power management root domain that the system will shut down.
205 */
206 IOSystemShutdownNotification(howto, kIOSystemShutdownNotificationStageProcessExit);
207
208 if ((howto & RB_QUICK) == RB_QUICK) {
209 printf("Quick reboot...\n");
210 if ((howto & RB_NOSYNC) == 0) {
211 sync((proc_t)NULL, (void *)NULL, (int *)NULL);
212 }
213 } else if ((howto & RB_NOSYNC) == 0) {
214 int iter, nbusy;
215
216 printf("syncing disks... ");
217
218 /*
219 * Release vnodes held by texts before sync.
220 */
221
222 /* handle live procs (deallocate their root and current directories), suspend initproc */
223
224 startTime = mach_absolute_time();
225 proc_shutdown(TRUE);
226 halt_log_enter("proc_shutdown", 0, mach_absolute_time() - startTime);
227
228 #if CONFIG_AUDIT
229 startTime = mach_absolute_time();
230 audit_shutdown();
231 halt_log_enter("audit_shutdown", 0, mach_absolute_time() - startTime);
232 #endif
233
234 #if XNU_TARGET_OS_OSX
235 if (unmountroot_pre_hook != NULL) {
236 unmountroot_pre_hook();
237 }
238 #endif
239
240 startTime = mach_absolute_time();
241 sync((proc_t)NULL, (void *)NULL, (int *)NULL);
242
243 if (kdebug_enable) {
244 startTime = mach_absolute_time();
245 kdbg_dump_trace_to_file("/var/log/shutdown/shutdown.trace", true);
246 halt_log_enter("shutdown.trace", 0, mach_absolute_time() - startTime);
247 }
248
249 IOSystemShutdownNotification(howto, kIOSystemShutdownNotificationStageRootUnmount);
250
251 if (cl_sparse_push_error) {
252 panic("system_shutdown cluster_push_err failed with ENOSPC %d times\n", cl_sparse_push_error);
253 }
254
255 /*
256 * Unmount filesystems
257 */
258
259 #if DEVELOPMENT || DEBUG
260 if (!(howto & RB_PANIC) || !kdp_has_polled_corefile())
261 #endif /* DEVELOPMENT || DEBUG */
262 {
263 startTime = mach_absolute_time();
264 vfs_unmountall(TRUE);
265 halt_log_enter("vfs_unmountall", 0, mach_absolute_time() - startTime);
266 }
267
268 IOSystemShutdownNotification(howto, kIOSystemShutdownNotificationTerminateDEXTs);
269
270 startTime = mach_absolute_time();
271 proc_shutdown(FALSE);
272 halt_log_enter("proc_shutdown", 0, mach_absolute_time() - startTime);
273
274 #if DEVELOPMENT || DEBUG
275 if (!(howto & RB_PANIC) || !kdp_has_polled_corefile())
276 #endif /* DEVELOPMENT || DEBUG */
277 {
278 startTime = mach_absolute_time();
279 vfs_unmountall(FALSE);
280 halt_log_enter("vfs_unmountall", 0, mach_absolute_time() - startTime);
281 }
282
283
284
285 /* Wait for the buffer cache to clean remaining dirty buffers */
286 startTime = mach_absolute_time();
287 for (iter = 0; iter < 100; iter++) {
288 nbusy = count_busy_buffers();
289 if (nbusy == 0) {
290 break;
291 }
292 printf("%d ", nbusy);
293 delay_for_interval( 1 * nbusy, 1000 * 1000);
294 }
295 if (nbusy) {
296 printf("giving up\n");
297 } else {
298 printf("done\n");
299 }
300 halt_log_enter("bufferclean", 0, mach_absolute_time() - startTime);
301 }
302 #if NETWORKING
303 /*
304 * Can't just use an splnet() here to disable the network
305 * because that will lock out softints which the disk
306 * drivers depend on to finish DMAs.
307 */
308 startTime = mach_absolute_time();
309 if_down_all();
310 halt_log_enter("if_down_all", 0, mach_absolute_time() - startTime);
311 #endif /* NETWORKING */
312
313 force_reboot:
314
315 if (howto & RB_PANIC) {
316 panic_kernel(howto, message);
317 }
318
319 if (howto & RB_HALT) {
320 hostboot_option = HOST_REBOOT_HALT;
321 }
322
323 if (howto & RB_UPSDELAY) {
324 hostboot_option = HOST_REBOOT_UPSDELAY;
325 }
326
327 host_reboot(host_priv_self(), hostboot_option);
328 /*
329 * should not be reached
330 */
331 return 0;
332 }
333
334 static int
sd_openlog(vfs_context_t ctx)335 sd_openlog(vfs_context_t ctx)
336 {
337 int error = 0;
338 struct timeval tv;
339
340 /* Open shutdown log */
341 if ((error = vnode_open(PROC_SHUTDOWN_LOG, (O_CREAT | FWRITE | O_NOFOLLOW), 0644, 0, &sd_logvp, ctx))) {
342 printf("Failed to open %s: error %d\n", PROC_SHUTDOWN_LOG, error);
343 sd_logvp = NULLVP;
344 return error;
345 }
346
347 vnode_setsize(sd_logvp, (off_t)0, 0, ctx);
348
349 /* Write a little header */
350 microtime(&tv);
351 sd_log(ctx, "Process shutdown log. Current time is %lu (in seconds).\n\n", tv.tv_sec);
352
353 return 0;
354 }
355
356 static int
sd_closelog(vfs_context_t ctx)357 sd_closelog(vfs_context_t ctx)
358 {
359 int error = 0;
360 if (sd_logvp != NULLVP) {
361 VNOP_FSYNC(sd_logvp, MNT_WAIT, ctx);
362 error = vnode_close(sd_logvp, FWRITE, ctx);
363 sd_logvp = NULLVP;
364 }
365
366 return error;
367 }
368
369 __printflike(2, 3)
370 static void
sd_log(vfs_context_t ctx,const char * fmt,...)371 sd_log(vfs_context_t ctx, const char *fmt, ...)
372 {
373 int resid, log_error, len;
374 char logbuf[100];
375 va_list arglist;
376
377 /* If the log isn't open yet, open it */
378 if (sd_logvp == NULLVP) {
379 if (sd_openlog(ctx) != 0) {
380 /* Couldn't open, we fail out */
381 return;
382 }
383 }
384
385 va_start(arglist, fmt);
386 len = vsnprintf(logbuf, sizeof(logbuf), fmt, arglist);
387 log_error = vn_rdwr(UIO_WRITE, sd_logvp, (caddr_t)logbuf, len, sd_log_offset,
388 UIO_SYSSPACE, IO_UNIT | IO_NOAUTH, vfs_context_ucred(ctx), &resid, vfs_context_proc(ctx));
389 if (log_error == EIO || log_error == 0) {
390 sd_log_offset += (len - resid);
391 }
392
393 va_end(arglist);
394 }
395
396 #define proc_is_driver(p) (task_is_driver((p)->task))
397
398 static int
sd_filt1(proc_t p,void * args)399 sd_filt1(proc_t p, void * args)
400 {
401 proc_t self = current_proc();
402 struct sd_filterargs * sf = (struct sd_filterargs *)args;
403 int delayterm = sf->delayterm;
404 int shutdownstate = sf->shutdownstate;
405
406 if (sf->only_non_dext && proc_is_driver(p)) {
407 return 0;
408 }
409
410 if (((p->p_flag & P_SYSTEM) != 0) || (p->p_ppid == 0)
411 || (p == self) || (p->p_stat == SZOMB)
412 || (p->p_shutdownstate != shutdownstate)
413 || ((delayterm == 0) && ((p->p_lflag & P_LDELAYTERM) == P_LDELAYTERM))
414 || ((p->p_sigcatch & sigmask(SIGTERM)) == 0)) {
415 return 0;
416 } else {
417 return 1;
418 }
419 }
420
421
422 static int
sd_callback1(proc_t p,void * args)423 sd_callback1(proc_t p, void * args)
424 {
425 struct sd_iterargs * sd = (struct sd_iterargs *)args;
426 int signo = sd->signo;
427 int setsdstate = sd->setsdstate;
428 int countproc = sd->countproc;
429
430 proc_lock(p);
431 p->p_shutdownstate = (char)setsdstate;
432 if (p->p_stat != SZOMB) {
433 proc_unlock(p);
434 if (countproc != 0) {
435 proc_list_lock();
436 p->p_listflag |= P_LIST_EXITCOUNT;
437 proc_shutdown_exitcount++;
438 proc_list_unlock();
439 }
440 if (proc_is_driver(p)) {
441 printf("lingering dext %s signal(%d)\n", p->p_name, signo);
442 }
443 psignal(p, signo);
444 if (countproc != 0) {
445 sd->activecount++;
446 }
447 } else {
448 proc_unlock(p);
449 }
450
451 return PROC_RETURNED;
452 }
453
454 static int
sd_filt2(proc_t p,void * args)455 sd_filt2(proc_t p, void * args)
456 {
457 proc_t self = current_proc();
458 struct sd_filterargs * sf = (struct sd_filterargs *)args;
459 int delayterm = sf->delayterm;
460 int shutdownstate = sf->shutdownstate;
461
462 if (sf->only_non_dext && proc_is_driver(p)) {
463 return 0;
464 }
465
466 if (((p->p_flag & P_SYSTEM) != 0) || (p->p_ppid == 0)
467 || (p == self) || (p->p_stat == SZOMB)
468 || (p->p_shutdownstate == shutdownstate)
469 || ((delayterm == 0) && ((p->p_lflag & P_LDELAYTERM) == P_LDELAYTERM))) {
470 return 0;
471 } else {
472 return 1;
473 }
474 }
475
476 static int
sd_callback2(proc_t p,void * args)477 sd_callback2(proc_t p, void * args)
478 {
479 struct sd_iterargs * sd = (struct sd_iterargs *)args;
480 int signo = sd->signo;
481 int setsdstate = sd->setsdstate;
482 int countproc = sd->countproc;
483
484 proc_lock(p);
485 p->p_shutdownstate = (char)setsdstate;
486 if (p->p_stat != SZOMB) {
487 proc_unlock(p);
488 if (countproc != 0) {
489 proc_list_lock();
490 p->p_listflag |= P_LIST_EXITCOUNT;
491 proc_shutdown_exitcount++;
492 proc_list_unlock();
493 }
494 if (proc_is_driver(p)) {
495 printf("lingering dext %s signal(%d)\n", p->p_name, signo);
496 }
497 psignal(p, signo);
498 if (countproc != 0) {
499 sd->activecount++;
500 }
501 } else {
502 proc_unlock(p);
503 }
504
505 return PROC_RETURNED;
506 }
507
508 static int
sd_callback3(proc_t p,void * args)509 sd_callback3(proc_t p, void * args)
510 {
511 struct sd_iterargs * sd = (struct sd_iterargs *)args;
512 vfs_context_t ctx = vfs_context_current();
513
514 int setsdstate = sd->setsdstate;
515
516 proc_lock(p);
517 p->p_shutdownstate = (char)setsdstate;
518 if (p->p_stat != SZOMB) {
519 /*
520 * NOTE: following code ignores sig_lock and plays
521 * with exit_thread correctly. This is OK unless we
522 * are a multiprocessor, in which case I do not
523 * understand the sig_lock. This needs to be fixed.
524 * XXX
525 */
526 if (p->exit_thread) { /* someone already doing it */
527 proc_unlock(p);
528 /* give him a chance */
529 thread_block(THREAD_CONTINUE_NULL);
530 } else {
531 p->exit_thread = current_thread();
532 printf(".");
533
534 sd_log(ctx, "%s[%d] had to be forced closed with exit1().\n", p->p_comm, proc_getpid(p));
535
536 proc_unlock(p);
537 KERNEL_DEBUG_CONSTANT(BSDDBG_CODE(DBG_BSD_PROC, BSD_PROC_FRCEXIT) | DBG_FUNC_NONE,
538 proc_getpid(p), 0, 1, 0, 0);
539 sd->activecount++;
540 exit1(p, 1, (int *)NULL);
541 }
542 } else {
543 proc_unlock(p);
544 }
545
546 return PROC_RETURNED;
547 }
548
549
550 /*
551 * proc_shutdown()
552 *
553 * Shutdown down proc system (release references to current and root
554 * dirs for each process).
555 *
556 * POSIX modifications:
557 *
558 * For POSIX fcntl() file locking call vno_lockrelease() on
559 * the file to release all of its record locks, if any.
560 */
561
562 static void
proc_shutdown(int only_non_dext)563 proc_shutdown(int only_non_dext)
564 {
565 vfs_context_t ctx = vfs_context_current();
566 struct proc *p, *self;
567 int delayterm = 0;
568 struct sd_filterargs sfargs;
569 struct sd_iterargs sdargs;
570 int error = 0;
571 struct timespec ts;
572
573 /*
574 * Kill as many procs as we can. (Except ourself...)
575 */
576 self = (struct proc *)current_proc();
577
578 /*
579 * Signal the init with SIGTERM so that he does not launch
580 * new processes
581 */
582 p = proc_find(1);
583 if (p && p != self) {
584 psignal(p, SIGTERM);
585 }
586 proc_rele(p);
587
588 printf("Killing all processes ");
589
590 sigterm_loop:
591 /*
592 * send SIGTERM to those procs interested in catching one
593 */
594 sfargs.delayterm = delayterm;
595 sfargs.shutdownstate = 0;
596 sfargs.only_non_dext = only_non_dext;
597 sdargs.signo = SIGTERM;
598 sdargs.setsdstate = 1;
599 sdargs.countproc = 1;
600 sdargs.activecount = 0;
601
602 error = 0;
603 /* post a SIGTERM to all that catch SIGTERM and not marked for delay */
604 proc_rebootscan(sd_callback1, (void *)&sdargs, sd_filt1, (void *)&sfargs);
605
606 if (sdargs.activecount != 0 && proc_shutdown_exitcount != 0) {
607 proc_list_lock();
608 if (proc_shutdown_exitcount != 0) {
609 /*
610 * now wait for up to 3 seconds to allow those procs catching SIGTERM
611 * to digest it
612 * as soon as these procs have exited, we'll continue on to the next step
613 */
614 ts.tv_sec = 3;
615 ts.tv_nsec = 0;
616 error = msleep(&proc_shutdown_exitcount, &proc_list_mlock, PWAIT, "shutdownwait", &ts);
617 if (error != 0) {
618 for (p = allproc.lh_first; p; p = p->p_list.le_next) {
619 if ((p->p_listflag & P_LIST_EXITCOUNT) == P_LIST_EXITCOUNT) {
620 p->p_listflag &= ~P_LIST_EXITCOUNT;
621 }
622 }
623 for (p = zombproc.lh_first; p; p = p->p_list.le_next) {
624 if ((p->p_listflag & P_LIST_EXITCOUNT) == P_LIST_EXITCOUNT) {
625 p->p_listflag &= ~P_LIST_EXITCOUNT;
626 }
627 }
628 }
629 }
630 proc_list_unlock();
631 }
632 if (error == ETIMEDOUT) {
633 /*
634 * log the names of the unresponsive tasks
635 */
636
637 proc_list_lock();
638
639 for (p = allproc.lh_first; p; p = p->p_list.le_next) {
640 if (p->p_shutdownstate == 1) {
641 printf("%s[%d]: didn't act on SIGTERM\n", p->p_comm, proc_getpid(p));
642 sd_log(ctx, "%s[%d]: didn't act on SIGTERM\n", p->p_comm, proc_getpid(p));
643 }
644 }
645
646 proc_list_unlock();
647 }
648
649 /*
650 * send a SIGKILL to all the procs still hanging around
651 */
652 sfargs.delayterm = delayterm;
653 sfargs.shutdownstate = 2;
654 sdargs.signo = SIGKILL;
655 sdargs.setsdstate = 2;
656 sdargs.countproc = 1;
657 sdargs.activecount = 0;
658
659 /* post a SIGKILL to all that catch SIGTERM and not marked for delay */
660 proc_rebootscan(sd_callback2, (void *)&sdargs, sd_filt2, (void *)&sfargs);
661
662 error = 0;
663
664 if (sdargs.activecount != 0 && proc_shutdown_exitcount != 0) {
665 proc_list_lock();
666 if (proc_shutdown_exitcount != 0) {
667 /*
668 * wait for up to 60 seconds to allow these procs to exit normally
669 *
670 * History: The delay interval was changed from 100 to 200
671 * for NFS requests in particular.
672 */
673 ts.tv_sec = 10;
674 ts.tv_nsec = 0;
675 error = msleep(&proc_shutdown_exitcount, &proc_list_mlock, PWAIT, "shutdownwait", &ts);
676 if (error != 0) {
677 for (p = allproc.lh_first; p; p = p->p_list.le_next) {
678 if ((p->p_listflag & P_LIST_EXITCOUNT) == P_LIST_EXITCOUNT) {
679 p->p_listflag &= ~P_LIST_EXITCOUNT;
680 }
681 }
682 for (p = zombproc.lh_first; p; p = p->p_list.le_next) {
683 if ((p->p_listflag & P_LIST_EXITCOUNT) == P_LIST_EXITCOUNT) {
684 p->p_listflag &= ~P_LIST_EXITCOUNT;
685 }
686 }
687 }
688 }
689 proc_list_unlock();
690 }
691
692 if (error == ETIMEDOUT) {
693 /*
694 * log the names of the unresponsive tasks
695 */
696
697 proc_list_lock();
698
699 for (p = allproc.lh_first; p; p = p->p_list.le_next) {
700 if (p->p_shutdownstate == 2) {
701 printf("%s[%d]: didn't act on SIGKILL\n", p->p_comm, proc_getpid(p));
702 sd_log(ctx, "%s[%d]: didn't act on SIGKILL\n", p->p_comm, proc_getpid(p));
703 }
704 }
705
706 proc_list_unlock();
707 }
708
709 /*
710 * if we still have procs that haven't exited, then brute force 'em
711 */
712 sfargs.delayterm = delayterm;
713 sfargs.shutdownstate = 3;
714 sdargs.signo = 0;
715 sdargs.setsdstate = 3;
716 sdargs.countproc = 0;
717 sdargs.activecount = 0;
718
719
720
721 /* post a SIGTERM to all that catch SIGTERM and not marked for delay */
722 proc_rebootscan(sd_callback3, (void *)&sdargs, sd_filt2, (void *)&sfargs);
723 printf("\n");
724
725 /* Now start the termination of processes that are marked for delayed termn */
726 if (delayterm == 0) {
727 delayterm = 1;
728 goto sigterm_loop;
729 }
730
731 sd_closelog(ctx);
732
733 if (only_non_dext) {
734 return;
735 }
736
737 /*
738 * Now that all other processes have been terminated, suspend init
739 */
740 task_suspend_internal(initproc->task);
741
742 /* drop the ref on initproc */
743 proc_rele(initproc);
744 printf("continuing\n");
745 }
746