1 /* 2 * Copyright (c) 1995 Terrence R. Lambert 3 * All rights reserved. 4 * 5 * Copyright (c) 1982, 1986, 1989, 1991, 1992, 1993 6 * The Regents of the University of California. All rights reserved. 7 * (c) UNIX System Laboratories, Inc. 8 * All or some portions of this file are derived from material licensed 9 * to the University of California by American Telephone and Telegraph 10 * Co. or Unix System Laboratories, Inc. and are reproduced herein with 11 * the permission of UNIX System Laboratories, Inc. 12 * 13 * Redistribution and use in source and binary forms, with or without 14 * modification, are permitted provided that the following conditions 15 * are met: 16 * 1. Redistributions of source code must retain the above copyright 17 * notice, this list of conditions and the following disclaimer. 18 * 2. Redistributions in binary form must reproduce the above copyright 19 * notice, this list of conditions and the following disclaimer in the 20 * documentation and/or other materials provided with the distribution. 21 * 3. All advertising materials mentioning features or use of this software 22 * must display the following acknowledgement: 23 * This product includes software developed by the University of 24 * California, Berkeley and its contributors. 25 * 4. Neither the name of the University nor the names of its contributors 26 * may be used to endorse or promote products derived from this software 27 * without specific prior written permission. 28 * 29 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 30 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 31 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 32 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 33 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 34 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 35 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 36 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 37 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 38 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 39 * SUCH DAMAGE. 40 * 41 * @(#)init_main.c 8.9 (Berkeley) 1/21/94 42 * $FreeBSD$ 43 */ 44 45 #include "opt_init_path.h" 46 47 #include <sys/param.h> 48 #include <sys/kernel.h> 49 #include <sys/file.h> 50 #include <sys/filedesc.h> 51 #include <sys/ktr.h> 52 #include <sys/lock.h> 53 #include <sys/mount.h> 54 #include <sys/mutex.h> 55 #include <sys/sysctl.h> 56 #include <sys/proc.h> 57 #include <sys/resourcevar.h> 58 #include <sys/systm.h> 59 #include <sys/signalvar.h> 60 #include <sys/vnode.h> 61 #include <sys/sysent.h> 62 #include <sys/reboot.h> 63 #include <sys/sx.h> 64 #include <sys/sysproto.h> 65 #include <sys/vmmeter.h> 66 #include <sys/unistd.h> 67 #include <sys/malloc.h> 68 #include <sys/conf.h> 69 70 #include <machine/cpu.h> 71 72 #include <vm/vm.h> 73 #include <vm/vm_param.h> 74 #include <vm/pmap.h> 75 #include <vm/vm_map.h> 76 #include <sys/user.h> 77 #include <sys/copyright.h> 78 79 void mi_startup(void); /* Should be elsewhere */ 80 81 /* Components of the first process -- never freed. */ 82 static struct session session0; 83 static struct pgrp pgrp0; 84 struct proc proc0; 85 struct thread thread0; 86 static struct procsig procsig0; 87 static struct filedesc0 filedesc0; 88 static struct plimit limit0; 89 static struct vmspace vmspace0; 90 struct proc *initproc; 91 92 int cmask = CMASK; 93 extern int fallback_elf_brand; 94 95 struct vnode *rootvp; 96 int boothowto = 0; /* initialized so that it can be patched */ 97 SYSCTL_INT(_debug, OID_AUTO, boothowto, CTLFLAG_RD, &boothowto, 0, ""); 98 int bootverbose; 99 SYSCTL_INT(_debug, OID_AUTO, bootverbose, CTLFLAG_RW, &bootverbose, 0, ""); 100 101 /* 102 * This ensures that there is at least one entry so that the sysinit_set 103 * symbol is not undefined. A sybsystem ID of SI_SUB_DUMMY is never 104 * executed. 105 */ 106 SYSINIT(placeholder, SI_SUB_DUMMY, SI_ORDER_ANY, NULL, NULL) 107 108 /* 109 * The sysinit table itself. Items are checked off as the are run. 110 * If we want to register new sysinit types, add them to newsysinit. 111 */ 112 SET_DECLARE(sysinit_set, struct sysinit); 113 struct sysinit **sysinit, **sysinit_end; 114 struct sysinit **newsysinit, **newsysinit_end; 115 116 /* 117 * Merge a new sysinit set into the current set, reallocating it if 118 * necessary. This can only be called after malloc is running. 119 */ 120 void 121 sysinit_add(struct sysinit **set, struct sysinit **set_end) 122 { 123 struct sysinit **newset; 124 struct sysinit **sipp; 125 struct sysinit **xipp; 126 int count; 127 128 count = set_end - set; 129 if (newsysinit) 130 count += newsysinit_end - newsysinit; 131 else 132 count += sysinit_end - sysinit; 133 newset = malloc(count * sizeof(*sipp), M_TEMP, M_NOWAIT); 134 if (newset == NULL) 135 panic("cannot malloc for sysinit"); 136 xipp = newset; 137 if (newsysinit) 138 for (sipp = newsysinit; sipp < newsysinit_end; sipp++) 139 *xipp++ = *sipp; 140 else 141 for (sipp = sysinit; sipp < sysinit_end; sipp++) 142 *xipp++ = *sipp; 143 for (sipp = set; sipp < set_end; sipp++) 144 *xipp++ = *sipp; 145 if (newsysinit) 146 free(newsysinit, M_TEMP); 147 newsysinit = newset; 148 newsysinit_end = newset + count; 149 } 150 151 /* 152 * System startup; initialize the world, create process 0, mount root 153 * filesystem, and fork to create init and pagedaemon. Most of the 154 * hard work is done in the lower-level initialization routines including 155 * startup(), which does memory initialization and autoconfiguration. 156 * 157 * This allows simple addition of new kernel subsystems that require 158 * boot time initialization. It also allows substitution of subsystem 159 * (for instance, a scheduler, kernel profiler, or VM system) by object 160 * module. Finally, it allows for optional "kernel threads". 161 */ 162 void 163 mi_startup(void) 164 { 165 166 register struct sysinit **sipp; /* system initialization*/ 167 register struct sysinit **xipp; /* interior loop of sort*/ 168 register struct sysinit *save; /* bubble*/ 169 170 if (sysinit == NULL) { 171 sysinit = SET_BEGIN(sysinit_set); 172 sysinit_end = SET_LIMIT(sysinit_set); 173 } 174 175 restart: 176 /* 177 * Perform a bubble sort of the system initialization objects by 178 * their subsystem (primary key) and order (secondary key). 179 */ 180 for (sipp = sysinit; sipp < sysinit_end; sipp++) { 181 for (xipp = sipp + 1; xipp < sysinit_end; xipp++) { 182 if ((*sipp)->subsystem < (*xipp)->subsystem || 183 ((*sipp)->subsystem == (*xipp)->subsystem && 184 (*sipp)->order <= (*xipp)->order)) 185 continue; /* skip*/ 186 save = *sipp; 187 *sipp = *xipp; 188 *xipp = save; 189 } 190 } 191 192 /* 193 * Traverse the (now) ordered list of system initialization tasks. 194 * Perform each task, and continue on to the next task. 195 * 196 * The last item on the list is expected to be the scheduler, 197 * which will not return. 198 */ 199 for (sipp = sysinit; sipp < sysinit_end; sipp++) { 200 201 if ((*sipp)->subsystem == SI_SUB_DUMMY) 202 continue; /* skip dummy task(s)*/ 203 204 if ((*sipp)->subsystem == SI_SUB_DONE) 205 continue; 206 207 /* Call function */ 208 (*((*sipp)->func))((*sipp)->udata); 209 210 /* Check off the one we're just done */ 211 (*sipp)->subsystem = SI_SUB_DONE; 212 213 /* Check if we've installed more sysinit items via KLD */ 214 if (newsysinit != NULL) { 215 if (sysinit != SET_BEGIN(sysinit_set)) 216 free(sysinit, M_TEMP); 217 sysinit = newsysinit; 218 sysinit_end = newsysinit_end; 219 newsysinit = NULL; 220 newsysinit_end = NULL; 221 goto restart; 222 } 223 } 224 225 panic("Shouldn't get here!"); 226 /* NOTREACHED*/ 227 } 228 229 230 /* 231 *************************************************************************** 232 **** 233 **** The following SYSINIT's belong elsewhere, but have not yet 234 **** been moved. 235 **** 236 *************************************************************************** 237 */ 238 static void 239 print_caddr_t(void *data __unused) 240 { 241 printf("%s", (char *)data); 242 } 243 SYSINIT(announce, SI_SUB_COPYRIGHT, SI_ORDER_FIRST, print_caddr_t, copyright) 244 SYSINIT(version, SI_SUB_COPYRIGHT, SI_ORDER_SECOND, print_caddr_t, version) 245 246 static void 247 set_boot_verbose(void *data __unused) 248 { 249 250 if (boothowto & RB_VERBOSE) 251 bootverbose++; 252 } 253 SYSINIT(boot_verbose, SI_SUB_TUNABLES, SI_ORDER_ANY, set_boot_verbose, NULL) 254 255 /* 256 *************************************************************************** 257 **** 258 **** The two following SYSINT's are proc0 specific glue code. I am not 259 **** convinced that they can not be safely combined, but their order of 260 **** operation has been maintained as the same as the original init_main.c 261 **** for right now. 262 **** 263 **** These probably belong in init_proc.c or kern_proc.c, since they 264 **** deal with proc0 (the fork template process). 265 **** 266 *************************************************************************** 267 */ 268 /* ARGSUSED*/ 269 static void 270 proc0_init(void *dummy __unused) 271 { 272 register struct proc *p; 273 register struct filedesc0 *fdp; 274 register unsigned i; 275 struct thread *td; 276 struct ksegrp *kg; 277 struct kse *ke; 278 279 GIANT_REQUIRED; 280 p = &proc0; 281 td = &thread0; 282 283 /* 284 * Initialize magic number. 285 */ 286 p->p_magic = P_MAGIC; 287 288 /* 289 * Initialize thread, process and pgrp structures. 290 */ 291 procinit(); 292 293 /* 294 * Initialize sleep queue hash table 295 */ 296 sleepinit(); 297 298 /* 299 * additional VM structures 300 */ 301 vm_init2(); 302 303 /* 304 * Create process 0 (the swapper). 305 */ 306 LIST_INSERT_HEAD(&allproc, p, p_list); 307 LIST_INSERT_HEAD(PIDHASH(0), p, p_hash); 308 mtx_init(&pgrp0.pg_mtx, "process group", MTX_DEF); 309 p->p_pgrp = &pgrp0; 310 LIST_INSERT_HEAD(PGRPHASH(0), &pgrp0, pg_hash); 311 LIST_INIT(&pgrp0.pg_members); 312 LIST_INSERT_HEAD(&pgrp0.pg_members, p, p_pglist); 313 314 pgrp0.pg_session = &session0; 315 mtx_init(&session0.s_mtx, "session", MTX_DEF); 316 session0.s_count = 1; 317 session0.s_leader = p; 318 319 #ifdef __ELF__ 320 p->p_sysent = &elf_freebsd_sysvec; 321 #else 322 p->p_sysent = &aout_sysvec; 323 #endif 324 325 ke = &proc0.p_kse; /* XXXKSE */ 326 kg = &proc0.p_ksegrp; /* XXXKSE */ 327 p->p_flag = P_SYSTEM; 328 p->p_sflag = PS_INMEM; 329 p->p_stat = SRUN; 330 p->p_ksegrp.kg_nice = NZERO; 331 kg->kg_pri_class = PRI_TIMESHARE; 332 kg->kg_user_pri = PUSER; 333 td->td_priority = PVM; 334 td->td_base_pri = PUSER; 335 336 p->p_peers = 0; 337 p->p_leader = p; 338 339 bcopy("swapper", p->p_comm, sizeof ("swapper")); 340 341 callout_init(&p->p_itcallout, 0); 342 callout_init(&td->td_slpcallout, 1); 343 344 /* Create credentials. */ 345 p->p_ucred = crget(); 346 p->p_ucred->cr_ngroups = 1; /* group 0 */ 347 p->p_ucred->cr_uidinfo = uifind(0); 348 p->p_ucred->cr_ruidinfo = uifind(0); 349 p->p_ucred->cr_prison = NULL; /* Don't jail it. */ 350 td->td_ucred = crhold(p->p_ucred); 351 352 /* Create procsig. */ 353 p->p_procsig = &procsig0; 354 p->p_procsig->ps_refcnt = 1; 355 356 /* Initialize signal state for process 0. */ 357 siginit(&proc0); 358 359 /* Create the file descriptor table. */ 360 fdp = &filedesc0; 361 p->p_fd = &fdp->fd_fd; 362 mtx_init(&fdp->fd_fd.fd_mtx, "struct filedesc", MTX_DEF); 363 fdp->fd_fd.fd_refcnt = 1; 364 fdp->fd_fd.fd_cmask = cmask; 365 fdp->fd_fd.fd_ofiles = fdp->fd_dfiles; 366 fdp->fd_fd.fd_ofileflags = fdp->fd_dfileflags; 367 fdp->fd_fd.fd_nfiles = NDFILE; 368 369 /* Create the limits structures. */ 370 p->p_limit = &limit0; 371 for (i = 0; i < sizeof(p->p_rlimit)/sizeof(p->p_rlimit[0]); i++) 372 limit0.pl_rlimit[i].rlim_cur = 373 limit0.pl_rlimit[i].rlim_max = RLIM_INFINITY; 374 limit0.pl_rlimit[RLIMIT_NOFILE].rlim_cur = 375 limit0.pl_rlimit[RLIMIT_NOFILE].rlim_max = maxfiles; 376 limit0.pl_rlimit[RLIMIT_NPROC].rlim_cur = 377 limit0.pl_rlimit[RLIMIT_NPROC].rlim_max = maxproc; 378 i = ptoa(cnt.v_free_count); 379 limit0.pl_rlimit[RLIMIT_RSS].rlim_max = i; 380 limit0.pl_rlimit[RLIMIT_MEMLOCK].rlim_max = i; 381 limit0.pl_rlimit[RLIMIT_MEMLOCK].rlim_cur = i / 3; 382 limit0.p_cpulimit = RLIM_INFINITY; 383 limit0.p_refcnt = 1; 384 385 /* Allocate a prototype map so we have something to fork. */ 386 pmap_pinit0(vmspace_pmap(&vmspace0)); 387 p->p_vmspace = &vmspace0; 388 vmspace0.vm_refcnt = 1; 389 vm_map_init(&vmspace0.vm_map, round_page(VM_MIN_ADDRESS), 390 trunc_page(VM_MAXUSER_ADDRESS)); 391 vmspace0.vm_map.pmap = vmspace_pmap(&vmspace0); 392 393 /* 394 * We continue to place resource usage info and signal 395 * actions in the user struct so they're pageable. 396 */ 397 p->p_stats = &p->p_uarea->u_stats; 398 p->p_sigacts = &p->p_uarea->u_sigacts; 399 400 /* 401 * Charge root for one process. 402 */ 403 (void)chgproccnt(p->p_ucred->cr_ruidinfo, 1, 0); 404 } 405 SYSINIT(p0init, SI_SUB_INTRINSIC, SI_ORDER_FIRST, proc0_init, NULL) 406 407 /* ARGSUSED*/ 408 static void 409 proc0_post(void *dummy __unused) 410 { 411 struct timespec ts; 412 struct proc *p; 413 414 /* 415 * Now we can look at the time, having had a chance to verify the 416 * time from the file system. Pretend that proc0 started now. 417 */ 418 sx_slock(&allproc_lock); 419 LIST_FOREACH(p, &allproc, p_list) { 420 microtime(&p->p_stats->p_start); 421 p->p_runtime.sec = 0; 422 p->p_runtime.frac = 0; 423 } 424 sx_sunlock(&allproc_lock); 425 binuptime(PCPU_PTR(switchtime)); 426 PCPU_SET(switchticks, ticks); 427 428 /* 429 * Give the ``random'' number generator a thump. 430 */ 431 nanotime(&ts); 432 srandom(ts.tv_sec ^ ts.tv_nsec); 433 } 434 SYSINIT(p0post, SI_SUB_INTRINSIC_POST, SI_ORDER_FIRST, proc0_post, NULL) 435 436 /* 437 *************************************************************************** 438 **** 439 **** The following SYSINIT's and glue code should be moved to the 440 **** respective files on a per subsystem basis. 441 **** 442 *************************************************************************** 443 */ 444 445 446 /* 447 *************************************************************************** 448 **** 449 **** The following code probably belongs in another file, like 450 **** kern/init_init.c. 451 **** 452 *************************************************************************** 453 */ 454 455 /* 456 * List of paths to try when searching for "init". 457 */ 458 static char init_path[MAXPATHLEN] = 459 #ifdef INIT_PATH 460 __XSTRING(INIT_PATH); 461 #else 462 "/sbin/init:/sbin/oinit:/sbin/init.bak:/stand/sysinstall"; 463 #endif 464 SYSCTL_STRING(_kern, OID_AUTO, init_path, CTLFLAG_RD, init_path, 0, 465 "Path used to search the init process"); 466 467 /* 468 * Start the initial user process; try exec'ing each pathname in init_path. 469 * The program is invoked with one argument containing the boot flags. 470 */ 471 static void 472 start_init(void *dummy) 473 { 474 vm_offset_t addr; 475 struct execve_args args; 476 int options, error; 477 char *var, *path, *next, *s; 478 char *ucp, **uap, *arg0, *arg1; 479 struct thread *td; 480 struct proc *p; 481 int init_does_devfs = 0; 482 483 mtx_lock(&Giant); 484 485 GIANT_REQUIRED; 486 487 td = curthread; 488 p = td->td_proc; 489 490 vfs_mountroot(NULL); 491 492 /* Get the vnode for '/'. Set p->p_fd->fd_cdir to reference it. */ 493 if (VFS_ROOT(TAILQ_FIRST(&mountlist), &rootvnode)) 494 panic("cannot find root vnode"); 495 FILEDESC_LOCK(p->p_fd); 496 p->p_fd->fd_cdir = rootvnode; 497 VREF(p->p_fd->fd_cdir); 498 p->p_fd->fd_rdir = rootvnode; 499 VREF(p->p_fd->fd_rdir); 500 FILEDESC_UNLOCK(p->p_fd); 501 VOP_UNLOCK(rootvnode, 0, td); 502 503 if (devfs_present) { 504 /* 505 * For disk based systems, we probably cannot do this yet 506 * since the fs will be read-only. But a NFS root 507 * might be ok. It is worth a shot. 508 */ 509 error = vn_mkdir("/dev", 0700, UIO_SYSSPACE, td); 510 if (error == EEXIST) 511 error = 0; 512 if (error == 0) 513 error = vfs_mount(td, "devfs", "/dev", 0, 0); 514 if (error != 0) 515 init_does_devfs = 1; 516 } 517 518 /* 519 * Need just enough stack to hold the faked-up "execve()" arguments. 520 */ 521 addr = trunc_page(USRSTACK - PAGE_SIZE); 522 if (vm_map_find(&p->p_vmspace->vm_map, NULL, 0, &addr, PAGE_SIZE, 523 FALSE, VM_PROT_ALL, VM_PROT_ALL, 0) != 0) 524 panic("init: couldn't allocate argument space"); 525 p->p_vmspace->vm_maxsaddr = (caddr_t)addr; 526 p->p_vmspace->vm_ssize = 1; 527 528 if ((var = getenv("init_path")) != NULL) { 529 strncpy(init_path, var, sizeof init_path); 530 init_path[sizeof init_path - 1] = 0; 531 } 532 if ((var = getenv("kern.fallback_elf_brand")) != NULL) 533 fallback_elf_brand = strtol(var, NULL, 0); 534 535 for (path = init_path; *path != '\0'; path = next) { 536 while (*path == ':') 537 path++; 538 if (*path == '\0') 539 break; 540 for (next = path; *next != '\0' && *next != ':'; next++) 541 /* nothing */ ; 542 if (bootverbose) 543 printf("start_init: trying %.*s\n", (int)(next - path), 544 path); 545 546 /* 547 * Move out the boot flag argument. 548 */ 549 options = 0; 550 ucp = (char *)USRSTACK; 551 (void)subyte(--ucp, 0); /* trailing zero */ 552 if (boothowto & RB_SINGLE) { 553 (void)subyte(--ucp, 's'); 554 options = 1; 555 } 556 #ifdef notyet 557 if (boothowto & RB_FASTBOOT) { 558 (void)subyte(--ucp, 'f'); 559 options = 1; 560 } 561 #endif 562 563 #ifdef BOOTCDROM 564 (void)subyte(--ucp, 'C'); 565 options = 1; 566 #endif 567 if (init_does_devfs) { 568 (void)subyte(--ucp, 'd'); 569 options = 1; 570 } 571 572 if (options == 0) 573 (void)subyte(--ucp, '-'); 574 (void)subyte(--ucp, '-'); /* leading hyphen */ 575 arg1 = ucp; 576 577 /* 578 * Move out the file name (also arg 0). 579 */ 580 (void)subyte(--ucp, 0); 581 for (s = next - 1; s >= path; s--) 582 (void)subyte(--ucp, *s); 583 arg0 = ucp; 584 585 /* 586 * Move out the arg pointers. 587 */ 588 uap = (char **)((intptr_t)ucp & ~(sizeof(intptr_t)-1)); 589 (void)suword((caddr_t)--uap, (long)0); /* terminator */ 590 (void)suword((caddr_t)--uap, (long)(intptr_t)arg1); 591 (void)suword((caddr_t)--uap, (long)(intptr_t)arg0); 592 593 /* 594 * Point at the arguments. 595 */ 596 args.fname = arg0; 597 args.argv = uap; 598 args.envv = NULL; 599 600 /* 601 * Now try to exec the program. If can't for any reason 602 * other than it doesn't exist, complain. 603 * 604 * Otherwise, return via fork_trampoline() all the way 605 * to user mode as init! 606 */ 607 if ((error = execve(td, &args)) == 0) { 608 mtx_unlock(&Giant); 609 return; 610 } 611 if (error != ENOENT) 612 printf("exec %.*s: error %d\n", (int)(next - path), 613 path, error); 614 } 615 printf("init: not found in path %s\n", init_path); 616 panic("no init"); 617 } 618 619 /* 620 * Like kthread_create(), but runs in it's own address space. 621 * We do this early to reserve pid 1. 622 * 623 * Note special case - do not make it runnable yet. Other work 624 * in progress will change this more. 625 */ 626 static void 627 create_init(const void *udata __unused) 628 { 629 int error; 630 631 error = fork1(&thread0, RFFDG | RFPROC | RFSTOPPED, &initproc); 632 if (error) 633 panic("cannot fork init: %d\n", error); 634 PROC_LOCK(initproc); 635 initproc->p_flag |= P_SYSTEM; 636 PROC_UNLOCK(initproc); 637 mtx_lock_spin(&sched_lock); 638 initproc->p_sflag |= PS_INMEM; 639 mtx_unlock_spin(&sched_lock); 640 cpu_set_fork_handler(FIRST_THREAD_IN_PROC(initproc), start_init, NULL); 641 } 642 SYSINIT(init, SI_SUB_CREATE_INIT, SI_ORDER_FIRST, create_init, NULL) 643 644 /* 645 * Make it runnable now. 646 */ 647 static void 648 kick_init(const void *udata __unused) 649 { 650 struct thread *td; 651 652 td = FIRST_THREAD_IN_PROC(initproc); 653 mtx_lock_spin(&sched_lock); 654 initproc->p_stat = SRUN; 655 setrunqueue(FIRST_THREAD_IN_PROC(initproc)); /* XXXKSE */ 656 mtx_unlock_spin(&sched_lock); 657 } 658 SYSINIT(kickinit, SI_SUB_KTHREAD_INIT, SI_ORDER_FIRST, kick_init, NULL) 659