Date: Thu, 4 Jul 2002 11:58:14 +0200 (CEST) From: Olaf Wagner <wagner@elego.de> To: FreeBSD-gnats-submit@FreeBSD.org Cc: mdiers@elego.de, micha@elego.de Subject: kern/40176: panic: lockmgr: locking against myself -- ffs/softupdates problem? Message-ID: <200207040958.g649wE302358@old.elego.de>
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>Number: 40176
>Category: kern
>Synopsis: panic: lockmgr: locking against myself -- ffs/softupdates problem?
>Confidential: no
>Severity: serious
>Priority: medium
>Responsible: freebsd-bugs
>State: open
>Quarter:
>Keywords:
>Date-Required:
>Class: sw-bug
>Submitter-Id: current-users
>Arrival-Date: Thu Jul 04 03:10:01 PDT 2002
>Closed-Date:
>Last-Modified:
>Originator: Olaf Wagner
>Release: FreeBSD 4.6-RELEASE-p1 i386
>Organization:
elego Software Solutions GmbH Berlin
>Environment:
System: FreeBSD old.elego.de 4.6-RELEASE-p1 FreeBSD 4.6-RELEASE-p1 #3: Wed Jul 3 18:18:19 CEST 2002 root@old.elego.de:/usr/src-RELENG_4/sys/compile/OLDSILENTDEBUG i386
machine i386
#cpu I386_CPU
#cpu I486_CPU
cpu I586_CPU
cpu I686_CPU
ident OLDSILENT
maxusers 256
makeoptions DEBUG=-g #Build kernel with gdb(1) debug symbols
options MATH_EMULATE #Support for x87 emulation
options INET #InterNETworking
options INET6 #IPv6 communications protocols
options FFS #Berkeley Fast Filesystem
options FFS_ROOT #FFS usable as root device [keep this!]
options SOFTUPDATES #Enable FFS soft updates support
options MFS #Memory Filesystem
options MD_ROOT #MD is a potential root device
options NFS #Network Filesystem
options NFS_ROOT #NFS usable as root device, NFS required
options MSDOSFS #MSDOS Filesystem
options CD9660 #ISO 9660 Filesystem
options CD9660_ROOT #CD-ROM usable as root, CD9660 required
options PROCFS #Process filesystem
options COMPAT_43 #Compatible with BSD 4.3 [KEEP THIS!]
options SCSI_DELAY=2000 #Delay (in ms) before probing SCSI
options UCONSOLE #Allow users to grab the console
options USERCONFIG #boot -c editor
options VISUAL_USERCONFIG #visual boot -c editor
options KTRACE #ktrace(1) support
options SYSVSHM #SYSV-style shared memory
options SYSVMSG #SYSV-style message queues
options SYSVSEM #SYSV-style semaphores
options SEMMNI=20
options SEMUME=20
options P1003_1B #Posix P1003_1B real-time extensions
options _KPOSIX_PRIORITY_SCHEDULING
options ICMP_BANDLIM #Rate limit bad replies
options KBD_INSTALL_CDEV # install a CDEV entry in /dev
options IPFIREWALL
options IPDIVERT
options QUOTA
# To make an SMP kernel, the next two are needed
#options SMP # Symmetric MultiProcessor Kernel
#options APIC_IO # Symmetric (APIC) I/O
device isa
#device eisa
device pci
# Floppy drives
device fdc0 at isa? port IO_FD1 irq 6 drq 2
device fd0 at fdc0 drive 0
device fd1 at fdc0 drive 1
# ATA and ATAPI devices
#device ata0 at isa? port IO_WD1 irq 14
#device ata1 at isa? port IO_WD2 irq 15
#device ata
#device atadisk # ATA disk drives
#device atapicd # ATAPI CDROM drives
#device atapifd # ATAPI floppy drives
#device atapist # ATAPI tape drives
#options ATA_STATIC_ID #Static device numbering
# SCSI Controllers
#device ahb # EISA AHA1742 family
#device ahc # AHA2940 and onboard AIC7xxx devices
#device amd # AMD 53C974 (Tekram DC-390(T))
#device isp # Qlogic family
#device ncr # NCR/Symbios Logic
device sym # NCR/Symbios Logic (newer chipsets)
options SYM_SETUP_LP_PROBE_MAP=0x40
# Allow ncr to attach legacy NCR devices when
# both sym and ncr are configured
#device adv0 at isa?
#device adw
#device bt0 at isa?
#device aha0 at isa?
#device aic0 at isa?
#device ncv # NCR 53C500
#device nsp # Workbit Ninja SCSI-3
#device stg # TMC 18C30/18C50
# SCSI peripherals
device scbus # SCSI bus (required)
device da # Direct Access (disks)
device sa # Sequential Access (tape etc)
device cd # CD
device pass # Passthrough device (direct SCSI access)
# RAID controllers interfaced to the SCSI subsystem
#device asr # DPT SmartRAID V, VI and Adaptec SCSI RAID
#device dpt # DPT Smartcache - See LINT for options!
#device mly # Mylex AcceleRAID/eXtremeRAID
# RAID controllers
#device aac # Adaptec FSA RAID, Dell PERC2/PERC3
#device ida # Compaq Smart RAID
#device amr # AMI MegaRAID
#device mlx # Mylex DAC960 family
#device twe # 3ware Escalade
# atkbdc0 controls both the keyboard and the PS/2 mouse
device atkbdc0 at isa? port IO_KBD
device atkbd0 at atkbdc? irq 1 flags 0x1
device psm0 at atkbdc? irq 12
device vga0 at isa?
# splash screen/screen saver
pseudo-device splash
# syscons is the default console driver, resembling an SCO console
device sc0 at isa? flags 0x100
# Enable this and PCVT_FREEBSD for pcvt vt220 compatible console driver
#device vt0 at isa?
#options XSERVER # support for X server on a vt console
#options FAT_CURSOR # start with block cursor
# If you have a ThinkPAD, uncomment this along with the rest of the PCVT lines
#options PCVT_SCANSET=2 # IBM keyboards are non-std
# Floating point support - do not disable.
device npx0 at nexus? port IO_NPX irq 13
# Power management support (see LINT for more options)
#device apm0 at nexus? disable flags 0x20 # Advanced Power Management
# PCCARD (PCMCIA) support
#device card
#device pcic0 at isa? irq 0 port 0x3e0 iomem 0xd0000
#device pcic1 at isa? irq 0 port 0x3e2 iomem 0xd4000 disable
# Serial (COM) ports
device sio0 at isa? port IO_COM1 flags 0x10 irq 4
device sio1 at isa? port IO_COM2 irq 3
#device sio2 at isa? disable port IO_COM3 irq 5
#device sio3 at isa? disable port IO_COM4 irq 9
# Parallel port
device ppc0 at isa? irq 7
device ppbus # Parallel port bus (required)
device lpt # Printer
device plip # TCP/IP over parallel
device ppi # Parallel port interface device
#device vpo # Requires scbus and da
# PCI Ethernet NICs.
device de # DEC/Intel DC21x4x (``Tulip'')
#device fxp # Intel EtherExpress PRO/100B (82557, 82558)
#device tx # SMC 9432TX (83c170 ``EPIC'')
#device vx # 3Com 3c590, 3c595 (``Vortex'')
#device wx # Intel Gigabit Ethernet Card (``Wiseman'')
# PCI Ethernet NICs that use the common MII bus controller code.
# NOTE: Be sure to keep the 'device miibus' line in order to use these NICs!
device miibus # MII bus support
device dc # DEC/Intel 21143 and various workalikes
#device pcn # AMD Am79C79x PCI 10/100 NICs
#device rl # RealTek 8129/8139
#device sf # Adaptec AIC-6915 (``Starfire'')
#device sis # Silicon Integrated Systems SiS 900/SiS 7016
#device ste # Sundance ST201 (D-Link DFE-550TX)
#device tl # Texas Instruments ThunderLAN
device vr # VIA Rhine, Rhine II
#device wb # Winbond W89C840F
device xl # 3Com 3c90x (``Boomerang'', ``Cyclone'')
# ISA Ethernet NICs.
#device ed0 at isa? port 0x300 irq 10 iomem 0xcc000
#device ex
#device ep
#device fe0 at isa? port 0x300
# Xircom Ethernet
#device xe
# PRISM I IEEE 802.11b wireless NIC.
#device awi
# WaveLAN/IEEE 802.11 wireless NICs. Note: the WaveLAN/IEEE really
# exists only as a PCMCIA device, so there is no ISA attachment needed
# and resources will always be dynamically assigned by the pccard code.
#device wi
# Aironet 4500/4800 802.11 wireless NICs. Note: the declaration below will
# work for PCMCIA and PCI cards, as well as ISA cards set to ISA PnP
# mode (the factory default). If you set the switches on your ISA
# card for a manually chosen I/O address and IRQ, you must specify
# those parameters here.
#device an
# The probe order of these is presently determined by i386/isa/isa_compat.c.
#device ie0 at isa? port 0x300 irq 10 iomem 0xd0000
#device le0 at isa? port 0x300 irq 5 iomem 0xd0000
#device lnc0 at isa? port 0x280 irq 10 drq 0
#device cs0 at isa? port 0x300
#device sn0 at isa? port 0x300 irq 10
# Pseudo devices - the number indicates how many units to allocate.
pseudo-device loop # Network loopback
pseudo-device ether # Ethernet support
pseudo-device sl 2 # Kernel SLIP
pseudo-device ppp 4 # Kernel PPP
pseudo-device tun 4 # Packet tunnel.
pseudo-device pty # Pseudo-ttys (telnet etc)
pseudo-device md # Memory "disks"
pseudo-device gif 4 # IPv6 and IPv4 tunneling
pseudo-device faith 1 # IPv6-to-IPv4 relaying (translation)
# The `bpf' pseudo-device enables the Berkeley Packet Filter.
# Be aware of the administrative consequences of enabling this!
pseudo-device bpf #Berkeley packet filter
# USB support
device uhci # UHCI PCI->USB interface
device ohci # OHCI PCI->USB interface
device usb # USB Bus (required)
device ugen # Generic
device uhid # "Human Interface Devices"
device ukbd # Keyboard
device ulpt # Printer
device umass # Disks/Mass storage - Requires scbus and da
device ums # Mouse
device uscanner # Scanners
# USB Ethernet, requires mii
device aue # ADMtek USB ethernet
device cue # CATC USB ethernet
device kue # Kawasaki LSI USB ethernet
>Description:
We've encountered three system crashes with the given panic message
within the last two days (first with a 4.5 kernel, then, after an upgrade
to 4.6, with the latest 4.6 stable kernel).
GNU gdb 4.18 (FreeBSD)
Copyright 1998 Free Software Foundation, Inc.
GDB is free software, covered by the GNU General Public License, and you are
welcome to change it and/or distribute copies of it under certain conditions.
Type "show copying" to see the conditions.
There is absolutely no warranty for GDB. Type "show warranty" for details.
This GDB was configured as "i386-unknown-freebsd".
(kgdb) Reading symbols from OLDSILENTDEBUG/kernel.debug...done.
(kgdb) (kgdb) IdlePTD at phsyical address 0x0039e000
initial pcb at physical address 0x00300540
panicstr: lockmgr: locking against myself
panic messages:
---
panic: ffs_blkfree: freeing free frag
syncing disks... 38 5 3 3 3 3 3 3 3 panic: lockmgr: locking against myself
Uptime: 15h41m43s
dumping to dev #da/0x20009, offset 1048736
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 !
265 264 263 262 261 260 259 258 257 256 255 254 253 252 251 250 249 248 247 246 245 244 243 242 241 240 239 238 237 236 235 234 233 232 231 230 229 228 227 226 225 224 223 222 221 220 219 218 217 216 215 214 213 212 211 210 209 208 207 206 205 204 203 202 201 200 199 198 197 196 195 194 193 192 191 190 189 188 187 186 185 184 183 182 181 180 179 178 177 176 175 174 173 172 171 170 169 168 167 166 165 164 163 162 161 160 159 158 157 156 155 154 153 152 151 150 149 148 147 146 145 144 143 142 141 140 139 138 137 136 135 134 133 132 131 130 129 128 127 126 125 124 123 122 121 120 119 118 117 116 115 114 113 112 111 110 109 108 107 106 105 104 103 102 101 100 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 0
---
#0 dumpsys () at ../../kern/kern_shutdown.c:487
487 if (dumping++) {
(kgdb) (kgdb) #0 dumpsys () at ../../kern/kern_shutdown.c:487
#1 0xc0155173 in boot (howto=260) at ../../kern/kern_shutdown.c:316
#2 0xc0155598 in poweroff_wait (junk=0xc02a7580, howto=-866871292)
at ../../kern/kern_shutdown.c:595
#3 0xc014faf7 in lockmgr (lkp=0xcc54982c, flags=33620002,
interlkp=0xc031a524, p=0xd47be780) at ../../kern/kern_lock.c:337
#4 0xc017be18 in getblk (vp=0xd6693b40, blkno=327728, size=6144, slpflag=0,
slptimeo=0) at ../../sys/buf.h:305
#5 0xc0179fd6 in bread (vp=0xd6693b40, blkno=327728, size=6144, cred=0x0,
bpp=0xd66a0b28) at ../../kern/vfs_bio.c:508
#6 0xc022ec39 in ffs_freefile (pvp=0xd66a0c4c, ino=40581, mode=33188)
at ../../ufs/ffs/ffs_alloc.c:1592
#7 0xc0233e24 in handle_workitem_freefile (freefile=0xc2621c40)
at ../../ufs/ffs/ffs_softdep.c:2913
#8 0xc02313c3 in process_worklist_item (matchmnt=0x0, flags=0)
at ../../ufs/ffs/ffs_softdep.c:737
#9 0xc023122e in softdep_process_worklist (matchmnt=0x0)
at ../../ufs/ffs/ffs_softdep.c:622
#10 0xc0154fd1 in boot (howto=256) at ../../kern/kern_shutdown.c:261
#11 0xc0155598 in poweroff_wait (junk=0xc02bd380, howto=-1070869696)
at ../../kern/kern_shutdown.c:595
#12 0xc022e97f in ffs_blkfree (ip=0xd66a0e0c, bno=8849, size=1024)
at ../../ufs/ffs/ffs_alloc.c:1470
#13 0xc0232f1e in handle_workitem_freeblocks (freeblks=0xc3016700)
at ../../ufs/ffs/ffs_softdep.c:2146
#14 0xc023139b in process_worklist_item (matchmnt=0x0, flags=0)
at ../../ufs/ffs/ffs_softdep.c:723
#15 0xc023122e in softdep_process_worklist (matchmnt=0x0)
at ../../ufs/ffs/ffs_softdep.c:622
#16 0xc0182373 in sched_sync () at ../../kern/vfs_subr.c:1177
(kgdb) eax 0x0 0
ecx 0x0 0
edx 0x0 0
ebx 0x0 0
esp 0xd66a0a1c 0xd66a0a1c
ebp 0xd66a0a28 0xd66a0a28
esi 0x104 260
edi 0x0 0
eip 0xc01553a2 0xc01553a2
eflags 0x0 0
cs 0x0 0
ss 0x0 0
ds 0x0 0
es 0x0 0
fs 0x0 0
gs 0x2f 47
Files systems have been fscked and repaired several times.
>How-To-Repeat:
The problem occured when doing large checkout (FreeBSD source tree)
and remove operations (rm -rf src). Last time I did this just to provoke
the error.
>Fix:
none known
>Release-Note:
>Audit-Trail:
>Unformatted:
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