>Number:         21474
>Category:       kern
>Synopsis:       Altqd crashes kernel when trying to use a virtual "vlan" interface which does not have a vlanif parent.
>Confidential:   no
>Severity:       critical
>Priority:       medium
>Responsible:    kern-bug-people
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Tue May 06 01:32:00 UTC 2003
>Closed-Date:
>Last-Modified:
>Originator:     Dobromir Montauk
>Release:        netbsd-current
>Organization:
Office of Residential Computing, UC Berkeley
>Environment:
NetBSD man-aux 1.6R NetBSD 1.6R (GENERIC_IPSEC-QOS) #0: Thu Apr 17 14:19:51 PDT 2003  root@man-aux:/usr/src/sys/arch/i386/compile/GENERIC_IPSEC-QOS i386
>Description:
Here's my /etc/altq.conf:

interface vlan2 bandwidth 10M cbq

#The root class has all the bandwdith
class cbq vlan2 root_class NULL pbandwidth 100

#The default class
class cbq vlan2 def_class root_class borrow pbandwidth 50 default

#The client class, slows down the client - first, they only get 50% of available bandwidth
class cbq vlan2 client_class root_class pbandwidth 50
#Our first client - 169.229.97.234, only gets 1% of bandwidth to all ports
class cbq vlan2 169-229-97-234_class client_class pbandwidth 1
        #Catch all connections from this client         #dst            #dport  #src            #sport  #proto
        filter vlan2 169-229-97-234_class               0               0       169.229.97.234  0       0
        #Catch all connections TO this client
        filter vlan2 169-229-97-234_class               169.229.97.234  0       0               0       0

If I have created the vlan2 interface (with "ifconfig vlan2 create"), but that's it, altqd crashes with the following message:

ay  1 15:10:14 man-aux/man-aux /netbsd: altq: emulate 256000000Hz cpu clock
May  1 15:10:14 man-aux/man-aux /netbsd: fatal integer divide fault in supervisor mode
May  1 15:10:14 man-aux/man-aux /netbsd: trap type 8 code 0 eip c01a330c cs 8 eflags 10202 cr2 4808c3a8 ilevel 7
May  1 15:10:14 man-aux/man-aux /netbsd: panic: trap
May  1 15:10:14 man-aux/man-aux /netbsd: Begin traceback...
May  1 15:10:14 man-aux/man-aux /netbsd: trap() at trap+0x21a
May  1 15:10:14 man-aux/man-aux /netbsd: --- trap (number 8) ---
May  1 15:10:14 man-aux/man-aux /netbsd: rmc_wrr_set_weights(c123300c,0,e35f6bf0,c03d3a25,c12330e8) at rmc_wrr_set_weights+0x50
May  1 15:10:14 man-aux/man-aux /netbsd: rmc_newclass(0,c123300c,320,c01a46d0,1e) at rmc_newclass+0x3d9
May  1 15:10:14 man-aux/man-aux /netbsd: rmc_init(c12318d4,c123300c,320,c0198cfc,1e) at rmc_init+0x183
May  1 15:10:14 man-aux/man-aux /netbsd: cbq_class_create(c1233000,e35f6ec0,0,0,c03c5107) at cbq_class_create+0xdc
May  1 15:10:14 man-aux/man-aux /netbsd: gcc2_compiled.(e35f6ec0,e3379cf2,10000,0,c03c5107) at gcc2_compiled.+0x8d
May  1 15:10:14 man-aux/man-aux /netbsd: cbqioctl(4d01,c03c5107,e35f6ec0,3,e3379b64) at cbqioctl+0x101
May  1 15:10:14 man-aux/man-aux /netbsd: altqioctl(4d01,c03c5107,e35f6ec0,3,e3379b64) at altqioctl+0x119
May  1 15:10:14 man-aux/man-aux /netbsd: spec_ioctl(e35f6da4,e35cdad8,e35f6de0,c036fff2,e3385460) at spec_ioctl+0x46
May  1 15:10:14 man-aux/man-aux /netbsd: VOP_IOCTL(e3606788,c03c5107,e35f6ec0,3,c1201000) at VOP_IOCTL+0x49
May  1 15:10:14 man-aux/man-aux /netbsd: vn_ioctl(e3385460,c03c5107,e35f6ec0,e3379b64,e3351800) at vn_ioctl+0x121
May  1 15:10:14 man-aux/man-aux /netbsd: sys_ioctl(e3351800,e35f6f80,e35f6f78,c03d654c,bfbfedb0) at sys_ioctl+0x354
May  1 15:10:14 man-aux/man-aux /netbsd: syscall_plain(1f,1f,1f,1f,bfbfede8) at syscall_plain+0xab
May  1 15:10:14 man-aux/man-aux /netbsd: End traceback...
May  1 15:10:14 man-aux/man-aux /netbsd: syncing disks... 5 2 done
May  1 15:10:14 man-aux/man-aux /netbsd:
May  1 15:10:14 man-aux/man-aux /netbsd: dumping to dev 0,1 offset 1655
May  1 15:10:14 man-aux/man-aux /netbsd: dump 511 510 509 508 507 506 505 504 503 502 501 500 499 498 497 496 495 494 493 492 491 490 489 488 487 486 485 484 483 482 481
480 479 478 477 476 475 474 473 472 471 470 469 468 467 466 465 464 463 462 461 460 459 458 457 456 455 454 453 452 451 450 449 448 447 446 445 444 443 442 441 440 439
438 437 436 435 434 433 432 431 430 429 428 427 426 425 424 423 422 421 420 419 418 417 416 415 414 413 412 411 410 409 408 407 406 405 404 403 402 401 400 399 398 397
396 395 394 393 392 391 390 389 388 387 386 385 384 383 382 381 380 379 378 377 376 375 374 373 372 371 370 369 368 367 366 365 364 363 362 361 360 359 358 357 356 355
354 353 352 351 350 349 348 347 346 345 344 343 342 341 340 339 338 337 336 335 334 333 332 331 330 329 328 327 326 325 324 323 322 321 320 319 318 317 316 315 314 313
312 311 310 309 308 307 306 305 304 303 302 301 300 299 298 297 296 295 294 293 292 291 290 289 288 287 286 285 284 283 282 281 280 279 278 277 276!
 275 274 273 272 271 270 269 268 267 266 265 26
May  1 15:10:14 man-aux/man-aux /netbsd:  258 257 256 255 254 253 252 251 250 249 248 247 246 245 244 243 242 241 240 239 238 237 236 235 234 233 232 231 230 229 228 227
226 225 224 223 222 221 220 219 218 217 216 215 214 213 212 211 210 209 208 207 206 205 204 203 202 201 200 199 198 197 196 195 194 193 192 191 190 189 188 187 186 185
184 183 182 181 180 179 178 177 176 175 174 173 172 171 170 169 168 167 166 165 164 163 162 161 160 159 158 157 156 155 154 153 152 151 150 149 148 147 146 145 144 143
142 141 140 139 138 137 136 135 134 133 132 131 130 129 128 127 126 125 124 123 122 121 120 119 118 117 116 115 114 113 112 111 110 109 108 107 106 105 104 103 102 101
100 99 98 97 96 95 94 93 92 91 90 89 88 87 86 85 84 83 82 81 80 79 78 77 76 75 74 73 72 71 70 69 68 67 66 65 64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 45
44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 succeeded


If I do "ifconfig vlan2 vlan 2 vlanif fxp1" before running "/etc/rc.d/altqd start", then the kernel does NOT crash.
>How-To-Repeat:
1) Make altqd use a vlan as an interface.
2) Create the vlan, but don't initialize it (ie, just do "ifconfig vlanXX create").
3) Start altqd.
>Fix:
Initialize the vlan interface before using it.
>Release-Note:
>Audit-Trail:
>Unformatted: