1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9 * or http://www.opensolaris.org/os/licensing. 10 * See the License for the specific language governing permissions 11 * and limitations under the License. 12 * 13 * When distributing Covered Code, include this CDDL HEADER in each 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15 * If applicable, add the following below this CDDL HEADER, with the 16 * fields enclosed by brackets "[]" replaced with your own identifying 17 * information: Portions Copyright [yyyy] [name of copyright owner] 18 * 19 * CDDL HEADER END 20 */ 21 /* 22 * Copyright 2007 Sun Microsystems, Inc. All rights reserved. 23 * Use is subject to license terms. 24 */ 25 26 #pragma ident "%Z%%M% %I% %E% SMI" 27 28 #include <sys/types.h> 29 #include <sys/time.h> 30 #include <sys/param.h> 31 #include <sys/systm.h> 32 #include <sys/signal.h> 33 #include <sys/sysmacros.h> 34 #include <sys/cmn_err.h> 35 #include <sys/user.h> 36 #include <sys/proc.h> 37 #include <sys/task.h> 38 #include <sys/project.h> 39 #include <sys/klwp.h> 40 #include <sys/vnode.h> 41 #include <sys/file.h> 42 #include <sys/fcntl.h> 43 #include <sys/flock.h> 44 #include <sys/var.h> 45 #include <sys/stream.h> 46 #include <sys/strsubr.h> 47 #include <sys/conf.h> 48 #include <sys/class.h> 49 #include <sys/ts.h> 50 #include <sys/rt.h> 51 #include <sys/exec.h> 52 #include <sys/exechdr.h> 53 #include <sys/buf.h> 54 #include <sys/resource.h> 55 #include <vm/seg.h> 56 #include <vm/pvn.h> 57 #include <vm/seg_kmem.h> 58 #include <sys/vmparam.h> 59 #include <sys/machparam.h> 60 #include <sys/utsname.h> 61 #include <sys/kmem.h> 62 #include <sys/stack.h> 63 #include <sys/modctl.h> 64 #include <sys/fdbuffer.h> 65 #include <sys/cyclic_impl.h> 66 #include <sys/disp.h> 67 #include <sys/tuneable.h> 68 69 #include <sys/vmem.h> 70 #include <sys/clock.h> 71 #include <sys/serializer.h> 72 73 /* 74 * The following few lines describe generic things that must be compiled 75 * into the booted executable (unix) rather than genunix or any other 76 * module because they're required by crash dump readers, etc. 77 */ 78 struct modctl modules; /* head of linked list of modules */ 79 char *default_path; /* default module loading path */ 80 struct swapinfo *swapinfo; /* protected by the swapinfo_lock */ 81 proc_t *practive; /* active process list */ 82 uint_t nproc; /* current number of processes */ 83 proc_t p0; /* process 0 */ 84 struct plock p0lock; /* p0's p_lock */ 85 klwp_t lwp0; /* t0's lwp */ 86 task_t *task0p; /* task 0 */ 87 kproject_t *proj0p; /* location of project 0 */ 88 89 /* 90 * The following are "implementation architecture" dependent constants made 91 * available here in the form of initialized data for use by "implementation 92 * architecture" independent modules. See machparam.h. 93 */ 94 const unsigned long _pagesize = (unsigned long)PAGESIZE; 95 const unsigned int _pageshift = (unsigned int)PAGESHIFT; 96 const unsigned long _pageoffset = (unsigned long)PAGEOFFSET; 97 /* 98 * XXX - This value pagemask has to be a 64bit size because 99 * large file support uses this mask on offsets which are 64 bit size. 100 * using unsigned leaves the higher 32 bits value as zero thus 101 * corrupting offset calculations in the file system and VM. 102 */ 103 const u_longlong_t _pagemask = (u_longlong_t)PAGEMASK; 104 const unsigned long _mmu_pagesize = (unsigned long)MMU_PAGESIZE; 105 const unsigned int _mmu_pageshift = (unsigned int)MMU_PAGESHIFT; 106 const unsigned long _mmu_pageoffset = (unsigned long)MMU_PAGEOFFSET; 107 const unsigned long _mmu_pagemask = (unsigned long)MMU_PAGEMASK; 108 uintptr_t _kernelbase = (uintptr_t)KERNELBASE; 109 uintptr_t _userlimit = (uintptr_t)USERLIMIT; 110 uintptr_t _userlimit32 = (uintptr_t)USERLIMIT32; 111 const uintptr_t _argsbase = (uintptr_t)ARGSBASE; 112 const unsigned int _diskrpm = (unsigned int)DISKRPM; 113 const unsigned long _pgthresh = (unsigned long)PGTHRESH; 114 const unsigned int _maxslp = (unsigned int)MAXSLP; 115 const unsigned long _maxhandspreadpages = (unsigned long)MAXHANDSPREADPAGES; 116 const int _ncpu = (int)NCPU; 117 const unsigned long _defaultstksz = (unsigned long)DEFAULTSTKSZ; 118 const unsigned int _nbpg = (unsigned int)MMU_PAGESIZE; 119 120 /* 121 * System parameter formulae. 122 * 123 * This file is copied into each directory where we compile 124 * the kernel; it should be modified there to suit local taste 125 * if necessary. 126 */ 127 128 /* 129 * Default hz is 100, but if we set hires_tick we get higher resolution 130 * clock behavior (currently defined to be 1000 hz). Higher values seem 131 * to work, but are not supported. 132 * 133 * If we do decide to play with higher values, remember that hz should 134 * satisfy the following constraints to avoid integer round-off problems: 135 * 136 * (1) hz should be in the range 100 <= hz <= MICROSEC. If hz exceeds 137 * MICROSEC, usec_per_tick will be zero and lots of stuff will break. 138 * Similarly, if hz < 100 then hz / 100 == 0 and stuff will break. 139 * 140 * (2) If hz <= 1000, it should be both a multiple of 100 and a 141 * divisor of 1000. 142 * 143 * (3) If hz > 1000, it should be both a multiple of 1000 and a 144 * divisor of MICROSEC. 145 * 146 * Thus the only reasonable values of hz (i.e. the values that won't 147 * cause roundoff error) are: 100, 200, 500, 1000, 2000, 4000, 5000, 148 * 8000, 10000, 20000, 25000, 40000, 50000, 100000, 125000, 200000, 149 * 250000, 500000, 1000000. As of this writing (1996) a clock rate 150 * of more than about 10 kHz seems utterly ridiculous, although 151 * this observation will no doubt seem quaintly amusing one day. 152 */ 153 int hz = 100; 154 int hires_hz = 1000; 155 int hires_tick = 0; 156 int cpu_decay_factor = 10; /* this is no longer tied to clock */ 157 int tick_per_msec; /* clock ticks per millisecond (zero if hz < 1000) */ 158 int msec_per_tick; /* millseconds per clock tick (zero if hz > 1000) */ 159 int usec_per_tick; /* microseconds per clock tick */ 160 int nsec_per_tick; /* nanoseconds per clock tick */ 161 int max_hres_adj; /* maximum adjustment of hrtime per tick */ 162 163 /* 164 * Setting "snooping" to a non-zero value will cause a deadman panic if 165 * snoop_interval microseconds elapse without lbolt increasing. The default 166 * snoop_interval is 50 seconds. 167 */ 168 #define SNOOP_INTERVAL_MIN (MICROSEC) 169 #define SNOOP_INTERVAL_DEFAULT (50 * MICROSEC) 170 171 int snooping = 0; 172 uint_t snoop_interval = SNOOP_INTERVAL_DEFAULT; 173 174 /* 175 * Tables of initialization functions, called from main(). 176 */ 177 178 extern void system_taskq_init(void); 179 extern void binit(void); 180 extern void space_init(void); 181 extern void dnlc_init(void); 182 extern void vfsinit(void); 183 extern void finit(void); 184 extern void strinit(void); 185 extern void flk_init(void); 186 extern void ftrace_init(void); 187 extern void softcall_init(void); 188 extern void ttyinit(void); 189 extern void schedctl_init(void); 190 extern void deadman_init(void); 191 extern void clock_timer_init(void); 192 extern void clock_realtime_init(void); 193 extern void clock_highres_init(void); 194 extern void pg_init(void); 195 extern void pg_cmt_class_init(void); 196 extern void pg_cpu0_init(void); 197 198 void (*init_tbl[])(void) = { 199 system_taskq_init, 200 binit, 201 space_init, 202 dnlc_init, 203 vfsinit, 204 finit, 205 strinit, 206 serializer_init, 207 softcall_init, 208 ttyinit, 209 as_init, 210 pvn_init, 211 anon_init, 212 segvn_init, 213 flk_init, 214 pg_init, 215 pg_cmt_class_init, 216 pg_cpu0_init, 217 schedctl_init, 218 fdb_init, 219 deadman_init, 220 clock_timer_init, 221 clock_realtime_init, 222 clock_highres_init, 223 0 224 }; 225 226 227 #if defined(__sparc) 228 extern void siron_mp_init(); 229 #endif 230 231 /* 232 * Any per cpu resources should be initialized via 233 * an entry in mp_init_tbl(). 234 */ 235 void (*mp_init_tbl[])(void) = { 236 ftrace_init, 237 cyclic_mp_init, 238 #if defined(__sparc) 239 siron_mp_init, 240 #endif 241 0 242 }; 243 244 int maxusers; /* kitchen-sink knob for dynamic configuration */ 245 246 /* 247 * pidmax -- highest pid value assigned by the system 248 * Settable in /etc/system 249 */ 250 int pidmax = DEFAULT_MAXPID; 251 252 /* 253 * jump_pid - if set, this value is where pid numbers should start 254 * after the first few system pids (0-3) are used. If 0, pids are 255 * chosen in the usual way. This variable can be used to quickly 256 * create large pids (by setting it to 100000, for example). pids 257 * less than this value will never be chosen. 258 */ 259 pid_t jump_pid = DEFAULT_JUMPPID; 260 261 /* 262 * autoup -- used in struct var for dynamic config of the age a delayed-write 263 * buffer must be in seconds before bdflush will write it out. 264 */ 265 #define DEFAULT_AUTOUP 30 266 int autoup = DEFAULT_AUTOUP; 267 268 /* 269 * bufhwm -- tuneable variable for struct var for v_bufhwm. 270 * high water mark for buffer cache mem usage in units of K bytes. 271 * 272 * bufhwm_pct -- ditto, but given in % of physmem. 273 */ 274 int bufhwm = 0; 275 int bufhwm_pct = 0; 276 277 /* 278 * Process table. 279 */ 280 int maxpid; 281 int max_nprocs; /* set in param_init() */ 282 int maxuprc; /* set in param_init() */ 283 int reserved_procs; 284 int nthread = 1; 285 286 /* 287 * UFS tunables 288 */ 289 int ufs_ninode; /* declared here due to backwards compatibility */ 290 int ndquot; /* declared here due to backwards compatibility */ 291 292 /* 293 * Exec switch table. This is used by the generic exec module 294 * to switch out to the desired executable type, based on the 295 * magic number. The currently supported types are ELF, a.out 296 * (both NMAGIC and ZMAGIC), interpreter (#!) files, 297 * and Java executables. 298 */ 299 /* 300 * Magic numbers 301 */ 302 short elfmagic = 0x7f45; 303 short intpmagic = 0x2321; 304 short jmagic = 0x504b; 305 306 #if defined(__sparc) 307 short aout_nmagic = NMAGIC; 308 short aout_zmagic = ZMAGIC; 309 short aout_omagic = OMAGIC; 310 #endif 311 short nomagic = 0; 312 313 /* 314 * Magic strings 315 */ 316 #define ELF32MAGIC_STRING "\x7f""ELF\x1" 317 #define ELF64MAGIC_STRING "\x7f""ELF\x2" 318 #define INTPMAGIC_STRING "#!" 319 #define JAVAMAGIC_STRING "PK\003\004" 320 #define AOUT_OMAGIC_STRING "\x1""\x07" /* 0407 */ 321 #define AOUT_NMAGIC_STRING "\x1""\x08" /* 0410 */ 322 #define AOUT_ZMAGIC_STRING "\x1""\x0b" /* 0413 */ 323 #define NOMAGIC_STRING "" 324 325 char elf32magicstr[] = ELF32MAGIC_STRING; 326 char elf64magicstr[] = ELF64MAGIC_STRING; 327 char intpmagicstr[] = INTPMAGIC_STRING; 328 char javamagicstr[] = JAVAMAGIC_STRING; 329 #if defined(__sparc) 330 char aout_nmagicstr[] = AOUT_NMAGIC_STRING; 331 char aout_zmagicstr[] = AOUT_ZMAGIC_STRING; 332 char aout_omagicstr[] = AOUT_OMAGIC_STRING; 333 #endif 334 char nomagicstr[] = NOMAGIC_STRING; 335 336 char *execswnames[] = { 337 "elfexec", /* Elf32 */ 338 #ifdef _LP64 339 "elfexec", /* Elf64 */ 340 #endif 341 "intpexec", 342 "javaexec", 343 #if defined(__sparc) 344 "aoutexec", 345 "aoutexec", 346 "aoutexec", 347 #endif 348 NULL, 349 NULL, 350 NULL 351 }; 352 353 struct execsw execsw[] = { 354 { elf32magicstr, 0, 5, NULL, NULL, NULL }, 355 #ifdef _LP64 356 { elf64magicstr, 0, 5, NULL, NULL, NULL }, 357 #endif 358 { intpmagicstr, 0, 2, NULL, NULL, NULL }, 359 { javamagicstr, 0, 4, NULL, NULL, NULL }, 360 #if defined(__sparc) 361 { aout_zmagicstr, 2, 2, NULL, NULL, NULL }, 362 { aout_nmagicstr, 2, 2, NULL, NULL, NULL }, 363 { aout_omagicstr, 2, 2, NULL, NULL, NULL }, 364 #endif 365 { nomagicstr, 0, 0, NULL, NULL, NULL }, 366 { nomagicstr, 0, 0, NULL, NULL, NULL }, 367 { nomagicstr, 0, 0, NULL, NULL, NULL }, 368 { nomagicstr, 0, 0, NULL, NULL, NULL } 369 }; 370 int nexectype = sizeof (execsw) / sizeof (execsw[0]); /* # of exec types */ 371 kmutex_t execsw_lock; /* Used for allocation of execsw entries */ 372 373 /* 374 * symbols added to make changing max-file-descriptors 375 * simple via /etc/system 376 */ 377 #define RLIM_FD_CUR 0x100 378 #define RLIM_FD_MAX 0x10000 379 380 uint_t rlim_fd_cur = RLIM_FD_CUR; 381 uint_t rlim_fd_max = RLIM_FD_MAX; 382 383 /* 384 * (Default resource limits were formerly declared here, but are now provided by 385 * the more general resource controls framework.) 386 */ 387 388 /* 389 * STREAMS tunables 390 */ 391 int nstrpush = 9; /* maximum # of modules/drivers on a stream */ 392 ssize_t strctlsz = 1024; /* maximum size of user-generated M_PROTO */ 393 ssize_t strmsgsz = 0x10000; /* maximum size of user-generated M_DATA */ 394 /* for `strmsgsz', zero means unlimited */ 395 /* 396 * Filesystem tunables 397 */ 398 int rstchown = 1; /* POSIX_CHOWN_RESTRICTED is enabled */ 399 int ngroups_max = NGROUPS_MAX_DEFAULT; 400 401 /* 402 * generic scheduling stuff 403 * 404 * Configurable parameters for RT and TS are in the respective 405 * scheduling class modules. 406 */ 407 408 pri_t maxclsyspri = MAXCLSYSPRI; 409 pri_t minclsyspri = MINCLSYSPRI; 410 char sys_name[] = "SYS"; 411 412 extern pri_t sys_init(); 413 extern classfuncs_t sys_classfuncs; 414 415 sclass_t sclass[] = { 416 { "SYS", sys_init, &sys_classfuncs, STATIC_SCHED, 0 }, 417 { "", NULL, NULL, NULL, 0 }, 418 { "", NULL, NULL, NULL, 0 }, 419 { "", NULL, NULL, NULL, 0 }, 420 { "", NULL, NULL, NULL, 0 }, 421 { "", NULL, NULL, NULL, 0 }, 422 { "", NULL, NULL, NULL, 0 }, 423 { "", NULL, NULL, NULL, 0 }, 424 { "", NULL, NULL, NULL, 0 }, 425 { "", NULL, NULL, NULL, 0 } 426 }; 427 428 int loaded_classes = 1; /* for loaded classes */ 429 kmutex_t class_lock; /* lock for class[] */ 430 431 int nclass = sizeof (sclass) / sizeof (sclass_t); 432 char initcls[] = "TS"; 433 char *defaultclass = initcls; 434 435 /* 436 * Tunable system parameters. 437 */ 438 439 /* 440 * The integers tune_* are done this way so that the tune 441 * data structure may be "tuned" if necessary from the /etc/system 442 * file. The tune data structure is initialized in param_init(); 443 */ 444 445 tune_t tune; 446 447 /* 448 * If freemem < t_getpgslow, then start to steal pages from processes. 449 */ 450 int tune_t_gpgslo = 25; 451 452 /* 453 * Rate at which fsflush is run, in seconds. 454 */ 455 #define DEFAULT_TUNE_T_FSFLUSHR 1 456 int tune_t_fsflushr = DEFAULT_TUNE_T_FSFLUSHR; 457 458 /* 459 * The minimum available resident (not swappable) memory to maintain 460 * in order to avoid deadlock. In pages. 461 */ 462 int tune_t_minarmem = 25; 463 464 /* 465 * The minimum available swappable memory to maintain in order to avoid 466 * deadlock. In pages. 467 */ 468 int tune_t_minasmem = 25; 469 470 int tune_t_flckrec = 512; /* max # of active frlocks */ 471 472 /* 473 * Number of currently available pages that cannot be 'locked' 474 * This is set in init_pages_pp_maximum, and must be initialized 475 * to zero here to detect an override in /etc/system 476 */ 477 pgcnt_t pages_pp_maximum = 0; 478 479 int boothowto; /* boot flags passed to kernel */ 480 struct var v; /* System Configuration Information */ 481 482 /* 483 * System Configuration Information 484 */ 485 486 #if defined(__sparc) 487 488 /* 489 * On sparc machines, read hw_serial from the firmware at boot time 490 * and simply assert Sun is the hardware provider. Hmm. 491 */ 492 char architecture[] = "sparcv9"; 493 char architecture_32[] = "sparc"; 494 char hw_serial[11]; 495 char hw_provider[] = "Sun_Microsystems"; 496 497 #elif defined(__i386) 498 499 /* 500 * On x86 machines, read hw_serial, hw_provider and srpc_domain from 501 * /etc/bootrc at boot time. 502 */ 503 char architecture[] = "i386"; 504 char architecture_32[] = "i386"; 505 char hw_serial[11] = "0"; 506 char hw_provider[SYS_NMLN] = ""; 507 508 #elif defined(__amd64) 509 510 /* 511 * On amd64 machines, read hw_serial, hw_provider and srpc_domain from 512 * /etc/bootrc at boot time. 513 */ 514 char architecture[] = "amd64"; 515 char architecture_32[] = "i386"; 516 char hw_serial[11] = "0"; 517 char hw_provider[SYS_NMLN] = ""; 518 519 #else 520 #error "unknown processor architecture" 521 #endif 522 523 char srpc_domain[SYS_NMLN] = ""; 524 char platform[SYS_NMLN] = ""; /* read from the devinfo root node */ 525 526 /* Initialize isa_list */ 527 char *isa_list = architecture; 528 529 static pgcnt_t original_physmem = 0; 530 531 #define MIN_DEFAULT_MAXUSERS 8u 532 #define MAX_DEFAULT_MAXUSERS 2048u 533 #define MAX_MAXUSERS 4096u 534 535 void 536 param_preset(void) 537 { 538 original_physmem = physmem; 539 } 540 541 void 542 param_calc(int platform_max_nprocs) 543 { 544 /* 545 * Default to about one "user" per megabyte, taking into 546 * account both physical and virtual constraints. 547 * Note: 2^20 is a meg; shifting right by (20 - PAGESHIFT) 548 * converts pages to megs without integer overflow. 549 */ 550 #if defined(__sparc) 551 if (physmem > original_physmem) { 552 physmem = original_physmem; 553 cmn_err(CE_NOTE, "physmem limited to %ld", physmem); 554 } 555 #endif 556 if (maxusers == 0) { 557 pgcnt_t physmegs = physmem >> (20 - PAGESHIFT); 558 pgcnt_t virtmegs = vmem_size(heap_arena, VMEM_FREE) >> 20; 559 maxusers = MIN(MAX(MIN(physmegs, virtmegs), 560 MIN_DEFAULT_MAXUSERS), MAX_DEFAULT_MAXUSERS); 561 } 562 if (maxusers > MAX_MAXUSERS) { 563 maxusers = MAX_MAXUSERS; 564 cmn_err(CE_NOTE, "maxusers limited to %d", MAX_MAXUSERS); 565 } 566 567 if (ngroups_max > NGROUPS_MAX_DEFAULT) 568 cmn_err(CE_WARN, "ngroups_max of %d > %d, NFS AUTH_SYS will" 569 " not work properly", ngroups_max, NGROUPS_MAX_DEFAULT); 570 571 #ifdef DEBUG 572 /* 573 * The purpose of maxusers is to prevent memory overcommit. 574 * DEBUG kernels take more space, so reduce maxusers a bit. 575 */ 576 maxusers = (3 * maxusers) / 4; 577 #endif 578 579 /* 580 * We need to dynamically change any variables now so that 581 * the setting of maxusers and pidmax propagate to the other 582 * variables that are dependent on them. 583 */ 584 if (reserved_procs == 0) 585 reserved_procs = 5; 586 if (pidmax < reserved_procs || pidmax > MAX_MAXPID) 587 maxpid = MAX_MAXPID; 588 else 589 maxpid = pidmax; 590 591 /* 592 * This allows platform-dependent code to constrain the maximum 593 * number of processes allowed in case there are e.g. VM limitations 594 * with how many contexts are available. 595 */ 596 if (max_nprocs == 0) 597 max_nprocs = (10 + 16 * maxusers); 598 if (platform_max_nprocs > 0 && max_nprocs > platform_max_nprocs) 599 max_nprocs = platform_max_nprocs; 600 if (max_nprocs > maxpid) 601 max_nprocs = maxpid; 602 603 if (maxuprc == 0) 604 maxuprc = (max_nprocs - reserved_procs); 605 } 606 607 void 608 param_init(void) 609 { 610 /* 611 * Set each individual element of struct var v to be the 612 * default value. This is done this way 613 * so that a user can set the assigned integer value in the 614 * /etc/system file *IF* tuning is needed. 615 */ 616 v.v_proc = max_nprocs; /* v_proc - max # of processes system wide */ 617 v.v_maxupttl = max_nprocs - reserved_procs; 618 v.v_maxsyspri = (int)maxclsyspri; /* max global pri for sysclass */ 619 v.v_maxup = MIN(maxuprc, v.v_maxupttl); /* max procs per user */ 620 v.v_autoup = autoup; /* v_autoup - delay for delayed writes */ 621 622 /* 623 * Set each individual element of struct tune to be the 624 * default value. Each struct element This is done this way 625 * so that a user can set the assigned integer value in the 626 * /etc/system file *IF* tuning is needed. 627 */ 628 tune.t_gpgslo = tune_t_gpgslo; 629 tune.t_fsflushr = tune_t_fsflushr; 630 tune.t_minarmem = tune_t_minarmem; 631 tune.t_minasmem = tune_t_minasmem; 632 tune.t_flckrec = tune_t_flckrec; 633 634 /* 635 * Initialization for file descriptors to correct mistaken settings in 636 * /etc/system. Initialization of limits performed by resource control 637 * system. 638 */ 639 if (rlim_fd_cur > rlim_fd_max) 640 rlim_fd_cur = rlim_fd_max; 641 642 /* 643 * calculations needed if hz was set in /etc/system 644 */ 645 if (hires_tick) 646 hz = hires_hz; 647 648 tick_per_msec = hz / MILLISEC; 649 msec_per_tick = MILLISEC / hz; 650 usec_per_tick = MICROSEC / hz; 651 nsec_per_tick = NANOSEC / hz; 652 max_hres_adj = nsec_per_tick >> ADJ_SHIFT; 653 } 654 655 /* 656 * Validate tuneable parameters following /etc/system processing, 657 * but prior to param_init(). 658 */ 659 void 660 param_check(void) 661 { 662 #if defined(__x86) 663 if (physmem != original_physmem) { 664 cmn_err(CE_NOTE, "physmem cannot be modified to 0x%lx" 665 " via /etc/system. Please use eeprom(1M) instead.", 666 physmem); 667 physmem = original_physmem; 668 } 669 #endif 670 if (ngroups_max < NGROUPS_UMIN || ngroups_max > NGROUPS_UMAX) 671 ngroups_max = NGROUPS_MAX_DEFAULT; 672 673 if (autoup <= 0) { 674 autoup = DEFAULT_AUTOUP; 675 cmn_err(CE_WARN, "autoup <= 0; defaulting to %d", autoup); 676 } 677 678 if (tune_t_fsflushr <= 0) { 679 tune_t_fsflushr = DEFAULT_TUNE_T_FSFLUSHR; 680 cmn_err(CE_WARN, "tune_t_fsflushr <= 0; defaulting to %d", 681 tune_t_fsflushr); 682 } 683 684 if (jump_pid < 0 || jump_pid >= pidmax) { 685 jump_pid = 0; 686 cmn_err(CE_WARN, "jump_pid < 0 or >= pidmax; ignored"); 687 } 688 689 if (snoop_interval < SNOOP_INTERVAL_MIN) { 690 snoop_interval = SNOOP_INTERVAL_DEFAULT; 691 cmn_err(CE_WARN, "snoop_interval < minimum (%d); defaulting" 692 " to %d", SNOOP_INTERVAL_MIN, SNOOP_INTERVAL_DEFAULT); 693 } 694 } 695