GENERIC HEAD from Mar 11 14:20 UTC + Jeff's vgone patch, vmcore.226.gz
Livelock.

GDB: no debug ports present
KDB: debugger backends: ddb
KDB: current backend: ddb
Copyright (c) 1992-2005 The FreeBSD Project.
Copyright (c) 1979, 1980, 1983, 1986, 1988, 1989, 1991, 1992, 1993, 1994
        The Regents of the University of California. All rights reserved.
FreeBSD 6.0-CURRENT #0: Sun Mar 13 15:46:15 CET 2005
    pho@current.osted.lan:/usr/src/sys/i386/compile/PHO
WARNING: WITNESS option enabled, expect reduced performance.
ACPI APIC Table: <A M I  OEMAPIC >
Timecounter "i8254" frequency 1193182 Hz quality 0
CPU: Intel(R) Celeron(R) CPU 1.80GHz (1799.14-MHz 686-class CPU)
  Origin = "GenuineIntel"  Id = 0xf13  Stepping = 3
  Features=0x3febfbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CLFLUSH,DTS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM>
real memory  = 267583488 (255 MB)
avail memory = 252354560 (240 MB)
:
Trying to mount root from ufs:/dev/ad0s1a
rl0: link state changed to DOWN
sigreturn: eflags = 0x0
sigreturn: eflags = 0x0
ad0: WARNING - READ_DMA interrupt was seen but timeout fired LBA=607807
ad0: WARNING - READ_DMA interrupt was seen but timeout fired LBA=673855
sigreturn: eflags = 0x0
sigreturn: eflags = 0x0
ad0: WARNING - READ_DMA interrupt was seen but timeout fired LBA=613311
~KDB: enter: Line break on console
[thread pid 61206 tid 100777 ]
Stopped at      kdb_enter+0x2b: nop
db> where
Tracing pid 61206 tid 100777 td 0xc1a68a10
kdb_enter(c0842c9b) at kdb_enter+0x2b
siointr1(c1699400,c095df00,0,c0842aab,56f) at siointr1+0xce
siointr(c1699400) at siointr+0x21
intr_execute_handlers(c1510090,cfd23d44,4,bfbfe9c8,c07ab403) at intr_execute_handlers+0x9d
lapic_handle_intr(34) at lapic_handle_intr+0x2e
Xapic_isr1() at Xapic_isr1+0x33
--- interrupt, eip = 0x8048f06, esp = 0xbfbfe9b0, ebp = 0xbfbfe9c8 ---
db> show alllocks
Process 61294 (sh) thread 0xc21828a0 (100486)
shared sx proctree r = 0 (0xc08f5de0) locked @ kern/kern_fork.c:278
Process 61292 (sh) thread 0xc1c3a170 (100251)
shared sx proctree r = 0 (0xc08f5de0) locked @ kern/kern_fork.c:278
Process 61291 (sh) thread 0xc1c255c0 (100682)
shared sx proctree r = 0 (0xc08f5de0) locked @ kern/kern_fork.c:278
Process 61284 (sh) thread 0xc1cf1730 (100638)
exclusive sx allproc r = 0 (0xc08f5da0) locked @ kern/kern_fork.c:287
shared sx proctree r = 0 (0xc08f5de0) locked @ kern/kern_fork.c:278
Process 61283 (sh) thread 0xc1e9c5c0 (100234)
shared sx proctree r = 0 (0xc08f5de0) locked @ kern/kern_fork.c:278
Process 61282 (sh) thread 0xc1d5a170 (100173)
shared sx proctree r = 0 (0xc08f5de0) locked @ kern/kern_fork.c:278
Process 61245 (sh) thread 0xc1d5e8a0 (100196)
exclusive sx user map r = 0 (0xc24263c8) locked @ vm/vm_map.c:2489
Process 61239 (sh) thread 0xc27c9b80 (100218)
exclusive sx user map r = 0 (0xc1d524f4) locked @ vm/vm_map.c:2998
Process 61236 (udp) thread 0xc248eb80 (100377)
exclusive sleep mutex inp (udpinp) r = 0 (0xc1815900) locked @ netinet/udp_usrreq.c:772
Process 61235 (udp) thread 0xc2a0f2e0 (100601)
exclusive sleep mutex inp (udpinp) r = 0 (0xc1815360) locked @ netinet/udp_usrreq.c:772
Process 61231 (udp) thread 0xc240dcf0 (100309)
exclusive sleep mutex inp (udpinp) r = 0 (0xc20ce090) locked @ netinet/udp_usrreq.c:772
Process 61226 (swap) thread 0xc1b76a10 (100647)
exclusive sleep mutex vm object (standard object) r = 0 (0xc1d7a8c4) locked @ vm/vm_fault.c:295
exclusive sx user map r = 0 (0xc298c29c) locked @ vm/vm_map.c:2998
Process 61183 (thr1) thread 0xc1e40170 (100201)
exclusive sx user map r = 0 (0xc25f474c) locked @ vm/vm_map.c:2998
Process 570 (top) thread 0xc184e170 (100091)
exclusive sx sysctl lock r = 0 (0xc08f6360) locked @ kern/kern_sysctl.c:1335
Process 459 (cron) thread 0xc16368a0 (100066)
shared sx proctree r = 0 (0xc08f5de0) locked @ kern/kern_fork.c:278
db> show lockedvnods
Locked vnodes

0xc1ac8000: tag ufs, type VDIR
    usecount 93, writecount 0, refcount 2 mountedhere 0
    flags ()
    v_object 0xc1ac1630 ref 0 pages 1
     lock type ufs: EXCL (count 1) by thread 0xc1c3c730 (pid 61220) with 1 pending
        ino 71075, on dev ad0s1e

0xc1a994d0: tag ufs, type VDIR
    usecount 2, writecount 0, refcount 2 mountedhere 0
    flags ()
db> where 61220
Tracing pid 61220 tid 100325 td 0xc1c3c730
sched_switch(c1c3c730,0,1) at sched_switch+0x17f
mi_switch(1,0) at mi_switch+0x264
sleepq_switch(c66652c4,cf6807e0,c0616ed1,c66652c4,0) at sleepq_switch+0xe0
sleepq_wait(c66652c4,0,0,2010020,600) at sleepq_wait+0x30
msleep(c66652c4,c08f4ee4,50,c082bfff,0) at msleep+0x311
acquire(cf680838,2010020,600,c1c3c730,0) at acquire+0xba
debuglockmgr(c66652c4,2090022,c17b3c9c,c1c3c730,c081d4dd,c082bb84,129) at debuglockmgr+0x406
getblk(c17b3c08,1cb760,0,4000,0) at getblk+0x15a
breadn(c17b3c08,1cb760,0,4000,0) at breadn+0x58
bread(c17b3c08,1cb760,0,4000,0,cf68095c,c1772174,0,c083a621,67b) at bread+0x20
ffs_nodealloccg(c1ab22bc,5,1cc00,0,41f8,c1772174,1,c083a621,4c1) at ffs_nodealloccg+0x12d
ffs_hashalloc(c1ab22bc,5,1cc00,0,41f8) at ffs_hashalloc+0x43
ffs_valloc(c1ac8000,41f8,c1aa5480,cf680a24,c08fd0c0) at ffs_valloc+0xdf
ufs_mkdir(cf680bc8) at ufs_mkdir+0x80
VOP_MKDIR_APV(c08bf4a0,cf680bc8) at VOP_MKDIR_APV+0x7e
kern_mkdir(c1c3c730,804b560,0,1f8,cf680d40) at kern_mkdir+0x2ca
mkdir(c1c3c730,cf680d14,2,0,292) at mkdir+0x15
syscall(2f,804002f,bfbf002f,2805024c,bfbfeb00) at syscall+0x213
Xint0x80_syscall() at Xint0x80_syscall+0x1f
--- syscall (136, FreeBSD ELF32, mkdir), eip = 0x280c05fb, esp = 0xbfbfe98c, ebp = 0xbfbfe9b8 ---
db> ps
  pid   proc     uid  ppid  pgrp  flag   stat  wmesg    wchan  cmd
61327 c1d379ec 1001 61284 47590 0006002 [SLPQ proctree 0xc08f5e10][SLP] tail
61326 c1d167f0 1001 61294 47590 0006002 [SLPQ proctree 0xc08f5e10][SLP] tail
61325 c25457f0 1001 61284 47590 0006002 [SLPQ proctree 0xc08f5e10][SLP] df
61324 c1d37000 1001 61293 47590 0006002 [SLPQ proctree 0xc08f5e10][SLP] awk
61323 c2935be8 1001 61293 47590 0006002 [SLPQ proctree 0xc08f5e10][SLP] tail
61322 c1d5b000 1001 61294 47590 0006002 [SLPQ proctree 0xc08f5e10][SLP] swapinfo
61321 c1d16000 1001 61293 47590 0006002 [SLPQ proctree 0xc08f5e10][SLP] swapinfo
61320 c1d393f8 1001 61277 47590 0004002 [SLPQ piperd 0xc1797000][SLP] awk
61319 c18a0be8 1001 61277 47590 0004002 [SLPQ piperd 0xc1796180][SLP] tail
61300 c25793f8    0 61245 47535 0000002 new [INACTIVE] sh
61296 c25791fc 1001 61208 47590 0000012 [RUNQ] swap
61295 c1d59be8 1001 61211 47590 0000012 [RUNQ] swap
61294 c29827f0 1001 61227 47590 0004002 [SLPQ allproc 0xc08f5dd0][SLP] sh
61293 c22be000 1001 61207 47590 0004002 [SLPQ wait 0xc22be000][SLP] sh
61292 c264a9ec 1001 61210 47590 0004002 [SLPQ allproc 0xc08f5dd0][SLP] sh
61291 c1d153f8 1001 61225 47590 0004002 [SLPQ allproc 0xc08f5dd0][SLP] sh
61290 c1ebe7f0 1001 61223 47590 0000012 [RUNQ] rw
61289 c1d5bde4 1001 61192 47590 0000002 [RUNQ] tcp
61288 c22be7f0 1001 61277 47590 0000002 [RUNQ] sh
61287 c1d56be8 1001 61174 47590 0000002 [RUNQ] tcp
61286 c1d575f4 1001 61215 47590 0000012 [RUNQ] rw
61285 c1d375f4 1001 61173 47590 0000002 [RUNQ] tcp
61284 c2926000 1001 61218 47590 0004002 [RUNQ] sh
61283 c1d5dde4 1001 61217 47590 0004002 [SLPQ allproc 0xc08f5dd0][SLP] sh
61282 c1d391fc 1001 61221 47590 0004002 [SLPQ allproc 0xc08f5dd0][SLP] sh
61281 c26479ec 1001 61176 47590 0000002 [RUNQ] tcp
61277 c25439ec 1001 61216 47590 0004002 [SLPQ wait 0xc25439ec][SLP] sh
61274 c29829ec 1001 61199 25832 0004002 [RUNQ] sysctl
61272 c1d573f8 1001 61195 25832 0004002 [RUNQ] sysctl
61271 c2543be8 1001 61196 25832 0004002 [RUNQ] sysctl
61265 c25453f8 1001 39183 25832 0004002 [RUNQ] sh
61247 c1d5bbe8 1001 61246 25832 0004102 [RUNQ] fstat
61246 c29273f8 1001 39180 25832 0004002 [SLPQ wait 0xc29273f8][SLP] sh
61245 c264a000    0 47535 47535 0000002 [RUNQ] sh
61244 c1d567f0 1001 61160 25832 0004002 [RUNQ] sysctl
61241 c1ebe5f4 1001 61203 47590 0000002 [SLPQ getblk 0xc66652c4][SLP] mkdir
61240 c184dde4 1001 61203 47590 0000002 [RUNQ] mkdir
61239 c264abe8 1001 39181 25832 0004002 [RUNQ] sh
61238 c22bf1fc 1001 61229 25832 0004102 [RUNQ] fstat
61237 c1d5f1fc 1001 61201 47590 0000002 [RUNQ] udp
61236 c1d15be8 1001 61201 47590 0000002 [RUNQ] udp
61235 c22bf9ec 1001 61201 47590 0000002 [RUNQ] udp
61234 c29259ec 1001 61201 47590 0000002 [RUNQ] udp
61233 c1d37be8 1001 61201 47590 0000002 [RUNQ] udp
61232 c184d7f0 1001 61201 47590 0000002 [RUNQ] udp
61231 c2647be8 1001 61201 47590 0000002 [RUNQ] udp
61230 c26475f4 1001 61201 47590 0000002 [RUNQ] udp
61229 c29831fc 1001 39182 25832 0004002 [SLPQ wait 0xc29831fc][SLP] sh
61228 c1d157f0 1001 61190 47590 0000002 [RUNQ] swap
61227 c2982be8 1001 61190 47590 0000002 [SLPQ piperd 0xc1a7fa80][SLP] swap
61226 c1d377f0 1001 61190 47590 0000002 [RUNQ] swap
61225 c22be3f8 1001 61190 47590 0000002 [SLPQ piperd 0xc1b02780][SLP] swap
61224 c1d5d9ec 1001 61190 47590 0000002 [RUNQ] swap
61223 c2545000 1001 61191 47590 0000002 [SLPQ ppwait 0xc2545000][SLP] rw
61222 c29251fc 1001 61191 47590 0000002 [SLPQ ufs 0xc1ac8054][SLP] rw
61221 c29279ec 1001 61191 47590 0000002 [SLPQ piperd 0xc2851000][SLP] rw
61220 c29263f8 1001 61191 47590 0000002 [SLPQ getblk 0xc66652c4][SLP] rw
61219 c1634de4 1001 61191 47590 0000002 [RUNQ] rw
61218 c1d571fc 1001 61191 47590 0000002 [SLPQ piperd 0xc1797900][SLP] rw
61217 c29267f0 1001 61191 47590 0000002 [SLPQ piperd 0xc298a900][SLP] rw
61216 c25433f8 1001 61191 47590 0000002 [SLPQ piperd 0xc298a000][SLP] rw
61215 c29355f4 1001 61191 47590 0000002 [SLPQ ppwait 0xc29355f4][SLP] rw
61214 c25789ec 1001 61191 47590 0000002 [SLPQ getblk 0xc66652c4][SLP] rw
61213 c25451fc 1001 61190 47590 0000002 [RUNQ] swap
61212 c29269ec 1001 61190 47590 0000002 [RUNQ] swap
61211 c264a7f0 1001 61190 47590 0000002 [SLPQ ppwait 0xc264a7f0][SLP] swap
61210 c26471fc 1001 61190 47590 0000002 [SLPQ piperd 0xc2425300][SLP] swap
61209 c1d15de4 1001 61190 47590 0000002 [RUNQ] swap
61208 c26477f0 1001 61190 47590 0000002 [SLPQ ppwait 0xc26477f0][SLP] swap
61207 c1d565f4 1001 61190 47590 0000002 [SLPQ proctree 0xc08f5e10][SLP] swap
61206 c1d59de4 1001 61190 47590 0000002 [CPU 0] swap
61205 c1d5d5f4 1001 61201 47590 0000002 [RUNQ] udp
61204 c1ebede4 1001 61201 47590 0000002 [RUNQ] udp
61203 c2579de4 1001 61153 47590 0000002 [SLPQ wait 0xc2579de4][SLP] mkdir
61202 c2935de4 1001 61175 47590 0000002 [RUNQ] tcp
61201 c264a5f4 1001 61159 47590 0000002 [SLPQ wait 0xc264a5f4][SLP] udp
61200 c1d373f8 1001 61162 47590 0008082 (threaded)  thr1
   thread 0xc24f4a10 ksegrp 0xc1575240 [SLPQ kserel 0xc1575274][SLP]
   thread 0xc1b76000 ksegrp 0xc1575240 [SLPQ kserel 0xc1575274][SLP]
   thread 0xc248ab80 ksegrp 0xc1575240 [SLPQ kserel 0xc1575274][SLP]
   thread 0xc1ceea10 ksegrp 0xc1575240 [SLPQ kserel 0xc1575274][SLP]
   thread 0xc1a6a450 ksegrp 0xc1575240 [RUNQ]
   thread 0xc1b768a0 ksegrp 0xc1575240 [SLPQ kserel 0xc1575274][SLP]
   thread 0xc1a4d000 ksegrp 0xc1575240 [SLPQ kserel 0xc1575274][SLP]
   thread 0xc1af1170 ksegrp 0xc1575240 [SLPQ kserel 0xc1575274][SLP]
   thread 0xc27c95c0 ksegrp 0xc1575240 [SLPQ kserel 0xc1575274][SLP]
   thread 0xc1d3c000 ksegrp 0xc1575240 [SLPQ kserel 0xc1575274][SLP]
   thread 0xc1b19450 ksegrp 0xc1575240 [SLPQ kserel 0xc1575274][SLP]
   thread 0xc240d170 ksegrp 0xc1575240 [SLPQ kserel 0xc1575274][SLP]
   thread 0xc1a4db80 ksegrp 0xc1575240 [SLPQ kserel 0xc1575274][SLP]
   thread 0xc2a8a170 ksegrp 0xc1575240 [SLPQ kserel 0xc1575274][SLP]
   thread 0xc1a72730 ksegrp 0xc1575240 [SLPQ kserel 0xc1575274][SLP]
   thread 0xc1d5e170 ksegrp 0xc1575240 [SLPQ kserel 0xc1575274][SLP]
   thread 0xc2486b80 ksegrp 0xc2649ae0 [SLPQ ksesigwait 0xc1d37530][SLP]
61199 c2925be8 1001 39178 25832 0004002 [SLPQ wait 0xc2925be8][SLP] sh
61198 c1d5d7f0 1001 61197 25832 0004102 [RUNQ] fstat
61197 c25799ec 1001 39185 25832 0004002 [SLPQ wait 0xc25799ec][SLP] sh
61196 c22be9ec 1001 39177 25832 0004002 [SLPQ wait 0xc22be9ec][SLP] sh
61195 c25797f0 1001 39186 25832 0004002 [SLPQ wait 0xc25797f0][SLP] sh
61192 c22bf5f4 1001 61166 47590 0000002 [SLPQ accept 0xc20a494e][SLP] tcp
61191 c2983be8 1001 61155 47590 0000002 [SLPQ wait 0xc2983be8][SLP] rw
61190 c1ebe1fc 1001 61151 47590 0000002 [SLPQ wait 0xc1ebe1fc][SLP] swap
61189 c2578000 1001 61163 47590 0000002 [RUNQ] creat
61188 c1d563f8 1001 61163 47590 0000002 [SLPQ getblk 0xc669bd78][SLP] creat
61187 c25795f4 1001 61163 47590 0000002 [SLPQ getblk 0xc66652c4][SLP] creat
61186 c2925000 1001 61163 47590 0000002 [RUNQ] creat
61185 c2579000 1001 61163 47590 0000002 [RUNQ] creat
61184 c1d397f0 1001 61163 47590 0000002 [RUNQ] creat
61183 c25785f4 1001 61162 47590 0008082 (threaded)  thr1
   thread 0xc1fa7a10 ksegrp 0xc1d76c00 [RUNQ]
   thread 0xc1fa7b80 ksegrp 0xc1d76c00 [SLPQ kserel 0xc1d76c34][SLP]
   thread 0xc1c3acf0 ksegrp 0xc1d76c00 [SLPQ kserel 0xc1d76c34][SLP]
   thread 0xc1a728a0 ksegrp 0xc1d76c00 [SLPQ kserel 0xc1d76c34][SLP]
   thread 0xc1cee000 ksegrp 0xc1d76c00 [SLPQ kserel 0xc1d76c34][SLP]
   thread 0xc1e9ccf0 ksegrp 0xc1d76c00 [SLPQ kserel 0xc1d76c34][SLP]
   thread 0xc2a8a730 ksegrp 0xc1d76c00 [RUNQ]
   thread 0xc1a6aa10 ksegrp 0xc1d76c00 [SLPQ kserel 0xc1d76c34][SLP]
   thread 0xc27dd000 ksegrp 0xc1d76c00 [SLPQ kserel 0xc1d76c34][SLP]
   thread 0xc2501cf0 ksegrp 0xc1d76c00 [SLPQ kserel 0xc1d76c34][SLP]
   thread 0xc232b8a0 ksegrp 0xc1d76c00 [SLPQ kserel 0xc1d76c34][SLP]
   thread 0xc27dfcf0 ksegrp 0xc1d76c00 [SLPQ kserel 0xc1d76c34][SLP]
   thread 0xc1a72b80 ksegrp 0xc1d76c00 [SLPQ kserel 0xc1d76c34][SLP]
   thread 0xc2486cf0 ksegrp 0xc1d76c00 [SLPQ kserel 0xc1d76c34][SLP]
   thread 0xc1c3a2e0 ksegrp 0xc1d76c00 [RUNQ]
   thread 0xc24f4000 ksegrp 0xc2649720 [SLPQ ksesigwait 0xc257872c][SLP]
   thread 0xc1e40170 ksegrp 0xc1d76c00 [RUNQ]
61182 c2925de4 1001 61162 47590 0008082 (threaded)  thr1
   thread 0xc1e9ca10 ksegrp 0xc15756c0 [SLPQ kserel 0xc15756f4][SLP]
   thread 0xc1d5c8a0 ksegrp 0xc15756c0 [SLPQ kserel 0xc15756f4][SLP]
   thread 0xc1cf1170 ksegrp 0xc15756c0 [RUNQ]
   thread 0xc1b302e0 ksegrp 0xc15756c0 [SLPQ kserel 0xc15756f4][SLP]
   thread 0xc1b6a170 ksegrp 0xc15756c0 [SLPQ kserel 0xc15756f4][SLP]
   thread 0xc1eb8000 ksegrp 0xc15756c0 [SLPQ kserel 0xc15756f4][SLP]
   thread 0xc1cee5c0 ksegrp 0xc15756c0 [SLPQ kserel 0xc15756f4][SLP]
   thread 0xc2501450 ksegrp 0xc15756c0 [SLPQ kserel 0xc15756f4][SLP]
   thread 0xc2a8a450 ksegrp 0xc15756c0 [SLPQ kserel 0xc15756f4][SLP]
   thread 0xc1760cf0 ksegrp 0xc15756c0 [SLPQ kserel 0xc15756f4][SLP]
   thread 0xc1c25170 ksegrp 0xc15756c0 [SLPQ kserel 0xc15756f4][SLP]
   thread 0xc27ca2e0 ksegrp 0xc15756c0 [SLPQ kserel 0xc15756f4][SLP]
   thread 0xc1e402e0 ksegrp 0xc15756c0 [SLPQ kserel 0xc15756f4][SLP]
   thread 0xc240da10 ksegrp 0xc15756c0 [SLPQ kserel 0xc15756f4][SLP]
   thread 0xc1b30b80 ksegrp 0xc15756c0 [SLPQ kserel 0xc15756f4][SLP]
   thread 0xc27df170 ksegrp 0xc26497e0 [SLPQ ksesigwait 0xc2925f1c][SLP]
   thread 0xc1ebfcf0 ksegrp 0xc15756c0 [SLPQ kserel 0xc15756f4][SLP]
61181 c1d5d000 1001 61162 47590 0008082 (threaded)  thr1
   thread 0xc27c9cf0 ksegrp 0xc2544780 [RUNQ]
   thread 0xc18a1450 ksegrp 0xc2544780 [RUNQ]
   thread 0xc1d60730 ksegrp 0xc2544780 [RUNQ]
   thread 0xc2a095c0 ksegrp 0xc2544780 [SLPQ kserel 0xc25447b4][SLP]
   thread 0xc2292b80 ksegrp 0xc2544780 [RUNQ]
   thread 0xc232b5c0 ksegrp 0xc2544780 [RUNQ]
   thread 0xc26af730 ksegrp 0xc2544780 [RUNQ]
   thread 0xc2a09450 ksegrp 0xc2544780 [RUNQ]
   thread 0xc24faa10 ksegrp 0xc2544780 [RUNQ]
   thread 0xc1635cf0 ksegrp 0xc2544780 [RUNQ]
   thread 0xc2904cf0 ksegrp 0xc2544780 [RUNQ]
   thread 0xc24fa730 ksegrp 0xc2544780 [SLPQ kserel 0xc25447b4][SLP]
   thread 0xc1a63450 ksegrp 0xc2544780 [RUNQ]
   thread 0xc24f6a10 ksegrp 0xc2544780 [SLPQ kserel 0xc25447b4][SLP]
   thread 0xc1af1730 ksegrp 0xc2544780 [RUNQ]
   thread 0xc2793cf0 ksegrp 0xc2649900 [SLPQ ksesigwait 0xc1d5d138][SLP]
   thread 0xc248e730 ksegrp 0xc2544780 [RUNQ]
61180 c29357f0 1001 61162 47590 0008082 (threaded)  thr1
   thread 0xc1d5cb80 ksegrp 0xc292a360 [SLPQ kserel 0xc292a394][SLP]
   thread 0xc1b765c0 ksegrp 0xc292a360 [SLPQ kserel 0xc292a394][SLP]
   thread 0xc1b30cf0 ksegrp 0xc292a360 [SLPQ kserel 0xc292a394][SLP]
   thread 0xc2a085c0 ksegrp 0xc292a360 [SLPQ kserel 0xc292a394][SLP]
   thread 0xc1d5a8a0 ksegrp 0xc292a360 [SLPQ kserel 0xc292a394][SLP]
   thread 0xc2486a10 ksegrp 0xc292a360 [SLPQ kserel 0xc292a394][SLP]
   thread 0xc1a72450 ksegrp 0xc292a360 [SLPQ kserel 0xc292a394][SLP]
   thread 0xc2760000 ksegrp 0xc292a360 [RUNQ]
   thread 0xc27935c0 ksegrp 0xc292a360 [RUNQ]
   thread 0xc24f4cf0 ksegrp 0xc292a360 [RUNQ]
   thread 0xc18a4450 ksegrp 0xc292a360 [RUNQ]
   thread 0xc2a0fb80 ksegrp 0xc292a360 [RUNQ]
   thread 0xc248e5c0 ksegrp 0xc292a360 [RUNQ]
   thread 0xc1b6a5c0 ksegrp 0xc292a360 [RUNQ]
   thread 0xc248e8a0 ksegrp 0xc292a360 [RUNQ]
   thread 0xc1636cf0 ksegrp 0xc292a360 [RUNQ]
   thread 0xc1a83b80 ksegrp 0xc2649b40 [SLPQ ksesigwait 0xc2935928][SLP]
61179 c1d5b9ec 1001 61162 47590 0008082 (threaded)  thr1
   thread 0xc1b762e0 ksegrp 0xc1d76420 [SLPQ kserel 0xc1d76454][SLP]
   thread 0xc1b6ab80 ksegrp 0xc1d76420 [SLPQ kserel 0xc1d76454][SLP]
   thread 0xc1cf12e0 ksegrp 0xc1d76420 [SLPQ kserel 0xc1d76454][SLP]
   thread 0xc1d5e450 ksegrp 0xc1d76420 [SLPQ kserel 0xc1d76454][SLP]
   thread 0xc2486730 ksegrp 0xc1d76420 [SLPQ kserel 0xc1d76454][SLP]
   thread 0xc1d60cf0 ksegrp 0xc1d76420 [SLPQ kserel 0xc1d76454][SLP]
   thread 0xc1c25a10 ksegrp 0xc1d76420 [SLPQ kserel 0xc1d76454][SLP]
   thread 0xc2a03170 ksegrp 0xc1d76420 [SLPQ kserel 0xc1d76454][SLP]
   thread 0xc1af1450 ksegrp 0xc1d76420 [SLPQ kserel 0xc1d76454][SLP]
   thread 0xc2501b80 ksegrp 0xc1d76420 [SLPQ kserel 0xc1d76454][SLP]
   thread 0xc1b30000 ksegrp 0xc1d76420 [SLPQ kserel 0xc1d76454][SLP]
   thread 0xc1e9c730 ksegrp 0xc1d76420 [SLPQ kserel 0xc1d76454][SLP]
   thread 0xc1d5ab80 ksegrp 0xc1d76420 [SLPQ kserel 0xc1d76454][SLP]
   thread 0xc1a685c0 ksegrp 0xc1d76420 [SLPQ kserel 0xc1d76454][SLP]
   thread 0xc18a48a0 ksegrp 0xc1d76420 [SLPQ kserel 0xc1d76454][SLP]
   thread 0xc240b5c0 ksegrp 0xc26496c0 [SLPQ ksesigwait 0xc1d5bb24][SLP]
   thread 0xc1d5ecf0 ksegrp 0xc1d76420 [RUNQ]
61178 c1d159ec 1001 61162 47590 0008082 (threaded)  thr1
   thread 0xc1c3c8a0 ksegrp 0xc1575720 [SLPQ kserel 0xc1575754][SLP]
   thread 0xc27dd5c0 ksegrp 0xc1575720 [RUNQ]
   thread 0xc26afb80 ksegrp 0xc1575720 [SLPQ kserel 0xc1575754][SLP]
   thread 0xc2a09b80 ksegrp 0xc1575720 [SLPQ kserel 0xc1575754][SLP]
   thread 0xc17608a0 ksegrp 0xc1575720 [SLPQ kserel 0xc1575754][SLP]
   thread 0xc1c3a8a0 ksegrp 0xc1575720 [SLPQ kserel 0xc1575754][SLP]
   thread 0xc1c562e0 ksegrp 0xc1575720 [SLPQ kserel 0xc1575754][SLP]
   thread 0xc1b30170 ksegrp 0xc1575720 [SLPQ kserel 0xc1575754][SLP]
   thread 0xc1b76cf0 ksegrp 0xc1575720 [SLPQ kserel 0xc1575754][SLP]
   thread 0xc27c9170 ksegrp 0xc1575720 [SLPQ kserel 0xc1575754][SLP]
   thread 0xc1ebf5c0 ksegrp 0xc1575720 [SLPQ kserel 0xc1575754][SLP]
   thread 0xc240d2e0 ksegrp 0xc1575720 [SLPQ kserel 0xc1575754][SLP]
   thread 0xc24ffcf0 ksegrp 0xc1575720 [SLPQ kserel 0xc1575754][SLP]
   thread 0xc27ca730 ksegrp 0xc1575720 [SLPQ kserel 0xc1575754][SLP]
   thread 0xc1c3c000 ksegrp 0xc1575720 [SLPQ kserel 0xc1575754][SLP]
   thread 0xc1eb8450 ksegrp 0xc1575720 [SLPQ kserel 0xc1575754][SLP]
   thread 0xc2a088a0 ksegrp 0xc2649ba0 [SLPQ ksesigwait 0xc1d15b24][SLP]
61177 c29833f8 1001 61162 47590 0008082 (threaded)  thr1
   thread 0xc1d5c450 ksegrp 0xc2544240 [SLPQ kserel 0xc2544274][SLP]
   thread 0xc1a72170 ksegrp 0xc2544240 [SLPQ kserel 0xc2544274][SLP]
   thread 0xc1b198a0 ksegrp 0xc2544240 [SLPQ kserel 0xc2544274][SLP]
   thread 0xc22922e0 ksegrp 0xc2544240 [SLPQ kserel 0xc2544274][SLP]
   thread 0xc1a272e0 ksegrp 0xc2544240 [RUNQ]
   thread 0xc24ff8a0 ksegrp 0xc2544240 [RUNQ]
   thread 0xc1d5a5c0 ksegrp 0xc2544240 [RUNQ]
   thread 0xc240b2e0 ksegrp 0xc2544240 [RUNQ]
   thread 0xc1a83730 ksegrp 0xc2544240 [RUNQ]
   thread 0xc2a08730 ksegrp 0xc2544240 [RUNQ]
   thread 0xc1a6a000 ksegrp 0xc2544240 [RUNQ]
   thread 0xc27c9a10 ksegrp 0xc2544240 [RUNQ]
   thread 0xc1c3ccf0 ksegrp 0xc2544240 [RUNQ]
   thread 0xc1c56000 ksegrp 0xc2544240 [RUNQ]
   thread 0xc24f48a0 ksegrp 0xc2544240 [RUNQ]
   thread 0xc2a092e0 ksegrp 0xc2544240 [RUNQ]
   thread 0xc1ebfb80 ksegrp 0xc2649960 [SLPQ ksesigwait 0xc2983530][SLP]
61176 c25435f4 1001 61166 47590 0000002 [SLPQ sbwait 0xc1842ee0][SLP] tcp
61175 c25787f0 1001 61166 47590 0000002 [SLPQ sbwait 0xc1ac0718][SLP] tcp
61174 c1d56de4 1001 61166 47590 0000002 [SLPQ accept 0xc20a32d2][SLP] tcp
61173 c1d15000 1001 61166 47590 0000002 [SLPQ sbwait 0xc1d45480][SLP] tcp
61172 c1d5f5f4 1001 61163 47590 0000002 [RUNQ] creat
61171 c29353f8 1001 61163 47590 0000002 [RUNQ] creat
61166 c189f000 1001 61158 47590 0000002 [SLPQ wait 0xc189f000][SLP] tcp
61163 c1d5d1fc 1001 61152 47590 0000002 [SLPQ wait 0xc1d5d1fc][SLP] creat
61162 c29261fc 1001 61154 47590 0000002 [SLPQ wait 0xc29261fc][SLP] thr1
61160 c1d39000 1001 39184 25832 0004002 [SLPQ wait 0xc1d39000][SLP] sh
61159 c1d5f7f0 1001 47725 47590 0004002 [SLPQ allproc 0xc08f5dc4][SLP] udp
61158 c1d59000 1001 47725 47590 0004002 [SLPQ allproc 0xc08f5dc4][SLP] tcp
61155 c29265f4 1001 47725 47590 0004002 [SLPQ allproc 0xc08f5dc4][SLP] rw
61154 c2927000 1001 47725 47590 0004002 [SLPQ allproc 0xc08f5dc4][SLP] thr1
61153 c2926de4 1001 47725 47590 0004002 [SLPQ allproc 0xc08f5dc4][SLP] mkdir
61152 c29253f8 1001 47725 47590 0004002 [SLPQ allproc 0xc08f5dc4][SLP] creat
61151 c1d569ec 1001 47725 47590 0004002 [SLPQ allproc 0xc08f5dc4][SLP] swap
47725 c1d5b1fc 1001 47724 47590 0000002 [SLPQ wait 0xc1d5b1fc][SLP] run
47724 c2927de4 1001 47723 47590 0000002 [SLPQ wait 0xc2927de4][SLP] run
47723 c25437f0 1001 47590 47590 0004002 [SLPQ nanslp 0xc08f658c][SLP] run
47590 c184d9ec 1001   581 47590 0004002 [SLPQ wait 0xc184d9ec][SLP] sh
47535 c26473f8    0 17997 47535 0004002 [SLPQ piperd 0xc1a7f780][SLP] sh
39186 c1d595f4 1001     1 25832 0000002 [SLPQ wait 0xc1d595f4][SLP] sysctl
39185 c264a1fc 1001     1 25832 0000002 [SLPQ wait 0xc264a1fc][SLP] sysctl
39184 c1ebe000 1001     1 25832 0000002 [SLPQ wait 0xc1ebe000][SLP] sysctl
39183 c22bebe8 1001     1 25832 0000002 [SLPQ wait 0xc22bebe8][SLP] sysctl
39182 c2579be8 1001     1 25832 0000002 [SLPQ wait 0xc2579be8][SLP] sysctl
39181 c1d5f000 1001     1 25832 0000002 [SLPQ wait 0xc1d5f000][SLP] sysctl
39180 c2982de4 1001     1 25832 0000002 [SLPQ wait 0xc2982de4][SLP] sysctl
39178 c2545de4 1001     1 25832 0000002 [SLPQ wait 0xc2545de4][SLP] sysctl
39177 c1d16de4 1001     1 25832 0000002 [SLPQ wait 0xc1d16de4][SLP] sysctl
17997 c2578de4    0 17996 17997 0004002 [SLPQ pause 0xc2578e18][SLP] csh
17996 c29837f0 1001  3595 17996 0004102 [SLPQ wait 0xc29837f0][SLP] su
 3595 c1d5dbe8 1001  3594  3595 0004002 [SLPQ wait 0xc1d5dbe8][SLP] bash
 3594 c1d163f8 1001  3592  3592 0000100 [SLPQ select 0xc0943864][SLP] sshd
 3592 c18a07f0    0   437  3592 0004100 [SLPQ sbwait 0xc1d455cc][SLP] sshd
  581 c175dbe8 1001   580   581 0004002 [SLPQ wait 0xc175dbe8][SLP] bash
  580 c184c3f8 1001   578   578 0000100 [SLPQ select 0xc0943864][SLP] sshd
  578 c189f1fc    0   437   578 0004100 [SLPQ sbwait 0xc1863c48][SLP] sshd
  570 c184dbe8 1001   564   570 0004002 [SLPQ allproc 0xc08f5dc4][SLP] top
  564 c184cbe8 1001   563   564 0004002 [SLPQ wait 0xc184cbe8][SLP] bash
  563 c18a03f8 1001   561   561 0000100 [SLPQ select 0xc0943864][SLP] sshd
  561 c184c5f4    0   437   561 0004100 [SLPQ sbwait 0xc1863334][SLP] sshd
  560 c18a05f4    0     1   560 0004002 [SLPQ ttyin 0xc16a2410][SLP] getty
  559 c184d1fc    0     1   559 0004002 [SLPQ ttyin 0xc16a3c10][SLP] getty
  558 c189f7f0    0     1   558 0004002 [SLPQ ttyin 0xc169bc10][SLP] getty
  557 c189fde4    0     1   557 0004002 [SLPQ ttyin 0xc16a2810][SLP] getty
  556 c18a01fc    0     1   556 0004002 [SLPQ ttyin 0xc169ac10][SLP] getty
  555 c189f9ec    0     1   555 0004002 [SLPQ ttyin 0xc16a4c10][SLP] getty
  554 c184d000    0     1   554 0004002 [SLPQ ttyin 0xc169a410][SLP] getty
  553 c18a0000    0     1   553 0004002 [SLPQ sysctl lock 0xc08f6390][SLP] login
  518 c189f3f8    0     1   518 0000000 [SLPQ select 0xc0943864][SLP] moused
  459 c184cde4    0     1   459 0000000 [SLPQ allproc 0xc08f5dd0][SLP] cron
  447 c175d3f8   25     1   447 0000100 [SLPQ sysctl lock 0xc08f6390][SLP] sendmail
  443 c184d5f4    0     1   443 0000100 [SLPQ sysctl lock 0xc08f6390][SLP] sendmail
  437 c175d9ec    0     1   437 0000100 [SLPQ select 0xc0943864][SLP] sshd
  419 c175d7f0    0     1   419 0000000 [SLPQ select 0xc0943864][SLP] ntpd
  393 c184c9ec    0     1   393 0000000 [SLPQ select 0xc0943864][SLP] usbd
  372 c184d3f8    0   368   368 0000000 [SLPQ - 0xc1855600][SLP] nfsd
  371 c184c000    0   368   368 0000000 [SLPQ - 0xc1855800][SLP] nfsd
  370 c175e9ec    0   368   368 0000000 [SLPQ - 0xc1855a00][SLP] nfsd
  369 c175ebe8    0   368   368 0000000 [SLPQ - 0xc1855c00][SLP] nfsd
  368 c175ede4    0     1   368 0000000 [SLPQ select 0xc0943864][SLP] nfsd
  366 c184c1fc    0     1   366 0000000 [SLPQ select 0xc0943864][SLP] mountd
  297 c175d5f4    0     1   297 0000000 [SLPQ select 0xc0943864][SLP] rpcbind
  283 c175d1fc    0     1   283 0000000 [SLPQ select 0xc0943864][SLP] syslogd
  252 c175d000    0     1   252 0000000 [SLPQ select 0xc0943864][SLP] devd
   61 c175dde4    0     0     0 0000204 [SLPQ allproc 0xc08f5dc4][SLP] schedcpu
   60 c175e000    0     0     0 0000204 [SLPQ - 0xc094b54c][SLP] nfsiod 3
   59 c175e1fc    0     0     0 0000204 [SLPQ - 0xc094b548][SLP] nfsiod 2
   58 c175e3f8    0     0     0 0000204 [SLPQ - 0xc094b544][SLP] nfsiod 1
   57 c175e5f4    0     0     0 0000204 [SLPQ - 0xc094b540][SLP] nfsiod 0
   56 c175e7f0    0     0     0 0000204 [SLPQ getblk 0xc66652c4][SLP] syncer
   55 c15743f8    0     0     0 0000204 [SLPQ vlruwt 0xc15743f8][SLP] vnlru
   54 c15745f4    0     0     0 0000204 [SLPQ psleep 0xc0943db0][SLP] bufdaemon
   53 c15747f0    0     0     0 000020c [SLPQ pgzero 0xc0951da4][SLP] pagezero
   52 c15749ec    0     0     0 0000204 [SLPQ psleep 0xc09518f4][SLP] vmdaemon
   51 c1574be8    0     0     0 0000204 [SLPQ psleep 0xc09518b0][SLP] pagedaemon
   50 c1574de4    0     0     0 0000204 [SLPQ - 0xc169083c][SLP] fdc0
   49 c1634000    0     0     0 0000204 [IWAIT] swi0: sio
   48 c16341fc    0     0     0 0000204 [SLPQ usbevt 0xc165d210][SLP] usb3
   47 c16343f8    0     0     0 0000204 [SLPQ usbevt 0xc164b210][SLP] usb2
   46 c16345f4    0     0     0 0000204 [SLPQ usbevt 0xc1650210][SLP] usb1
   45 c16347f0    0     0     0 0000204 [SLPQ usbtsk 0xc08e4f94][SLP] usbtask
   44 c16349ec    0     0     0 0000204 [SLPQ usbevt 0xc1623210][SLP] usb0
    9 c1634be8    0     0     0 0000204 [SLPQ actask 0xc0ab4c0c][SLP] acpi_task2
    8 c1567be8    0     0     0 0000204 [SLPQ actask 0xc0ab4c0c][SLP] acpi_task1
    7 c1567de4    0     0     0 0000204 [SLPQ actask 0xc0ab4c0c][SLP] acpi_task0
   43 c1572000    0     0     0 0000204 [IWAIT] swi5:+
    6 c15721fc    0     0     0 0000204 [SLPQ - 0xc161fb80][SLP] thread taskq
   42 c15723f8    0     0     0 0000204 [IWAIT] swi6: acpitaskq
   41 c15725f4    0     0     0 0000204 [IWAIT] swi6:+
   40 c15727f0    0     0     0 0000204 [IWAIT] swi6: task queue
    5 c15729ec    0     0     0 0000204 [SLPQ - 0xc1615840][SLP] kqueue taskq
   39 c1572be8    0     0     0 0000204 [IWAIT] swi2: cambio
   38 c1572de4    0     0     0 0000204 [SLPQ - 0xc08e2ce0][SLP] yarrow
    4 c1574000    0     0     0 0000204 [SLPQ - 0xc08e78e8][SLP] g_down
    3 c15741fc    0     0     0 0000204 [SLPQ - 0xc08e78e4][SLP] g_up
    2 c15585f4    0     0     0 0000204 [SLPQ - 0xc08e78dc][SLP] g_event
   37 c15587f0    0     0     0 0000204 [IWAIT] swi3: vm
   36 c15589ec    0     0     0 000020c [IWAIT] swi4: clock sio
   35 c1558be8    0     0     0 0000204 [IWAIT] swi1: net
   34 c1558de4    0     0     0 0000204 [IWAIT] irq0: clk
   33 c1567000    0     0     0 0000204 [IWAIT] irq23:
   32 c15671fc    0     0     0 0000204 [IWAIT] irq22: rl0
   31 c15673f8    0     0     0 0000204 [IWAIT] irq21:
   30 c15675f4    0     0     0 0000204 [IWAIT] irq20:
   29 c15677f0    0     0     0 0000204 [IWAIT] irq19: uhci1
   28 c15679ec    0     0     0 0000204 [IWAIT] irq18: uhci2
   27 c15281fc    0     0     0 0000204 [IWAIT] irq17: pcm0
   26 c15283f8    0     0     0 0000204 [IWAIT] irq16: uhci0 uhci3
   25 c15285f4    0     0     0 0000204 [IWAIT] irq15: ata1
   24 c15287f0    0     0     0 0000204 [IWAIT] irq14: ata0
   23 c15289ec    0     0     0 0000204 [IWAIT] irq13:
   22 c1528be8    0     0     0 0000204 [IWAIT] irq12: psm0
   21 c1528de4    0     0     0 0000204 [IWAIT] irq11:
   20 c1558000    0     0     0 0000204 [IWAIT] irq10:
   19 c15581fc    0     0     0 0000204 [IWAIT] irq9: acpi0
   18 c15583f8    0     0     0 0000204 [IWAIT] irq8: rtc
   17 c151f000    0     0     0 0000204 [IWAIT] irq7: ppc0
   16 c151f1fc    0     0     0 0000204 [IWAIT] irq6: fdc0
   15 c151f3f8    0     0     0 0000204 [IWAIT] irq5:
   14 c151f5f4    0     0     0 0000204 [IWAIT] irq4: sio0
   13 c151f7f0    0     0     0 0000204 [IWAIT] irq3:
   12 c151f9ec    0     0     0 0000204 [IWAIT] irq1: atkbd0
   11 c151fbe8    0     0     0 000020c [Can run] idle: cpu0
    1 c151fde4    0     0     1 0004200 [SLPQ wait 0xc151fde4][SLP] init
   10 c1528000    0     0     0 0000204 [SLPQ ktrace 0xc08f4518][SLP] ktrace
    0 c08e7a40    0     0     0 0000200 [SLPQ allproc 0xc08f5dc4][SLP] swapper
61156 c1d56000 1001 47725 47590 0006002 zomb[INACTIVE] syscall
61157 c2647de4 1001 47725 47590 0006002 zomb[INACTIVE] sysctl
db> call doadump
Dumping 255 MB
 16 32 48 64 80 96 112 128 144 160 176 192 208 224 240
Dump complete
0xf
db> reset

(kgdb) p *(struct vnode *)0xc1ac8000
$1 = {v_type = VDIR, v_tag = 0xc082b39d "ufs", v_op = 0xc08bf4a0, v_data = 0xc1ab22bc, v_mount = 0xc1741000, v_nmntvnodes = {
    tqe_next = 0xc1ced738, tqe_prev = 0xc1ab1ae8}, v_un = {vu_mount = 0x0, vu_socket = 0x0, vu_cdev = 0x0, vu_fifoinfo = 0x0},
  v_cache_src = {lh_first = 0xc1c8dd48}, v_cache_dst = {tqh_first = 0xc1b2c440, tqh_last = 0xc1b2c450}, v_id = 0x177fe01,
  v_dd = 0xc17ce738, v_ddid = 0x158, v_cstart = 0x0, v_lasta = 0x0, v_lastw = 0x0, v_clen = 0x0, v_lock = {lk_interlock = 0xc08f5bd4,
    lk_flags = 0x1200440, lk_sharecount = 0x0, lk_waitcount = 0x1, lk_exclusivecount = 0x1, lk_prio = 0x50, lk_wmesg = 0xc082b39d "ufs",
    lk_timo = 0x33, lk_lockholder = 0xc1c3c730, lk_newlock = 0x0, lk_filename = 0xc082cc4d "../../../kern/vfs_lookup.c",
    lk_lockername = 0xc082cad0 "vop_stdlock", lk_lineno = 0x16a, lk_slockholder = 0xffffffff, lk_sfilename = 0xc07fda86 "none",
    lk_slockername = 0xc082294b "never share locked", lk_slineno = 0x0}, v_interlock = {mtx_object = {lo_class = 0xc0885908,
      lo_name = 0xc082d3af "vnode interlock", lo_type = 0xc082d3af "vnode interlock", lo_flags = 0x30000, lo_list = {
        tqe_next = 0xc1ac7f04, tqe_prev = 0xc1ab1a44}, lo_witness = 0xc0905260}, mtx_lock = 0x4, mtx_recurse = 0x0},
  v_vnlock = 0xc1ac8054, filename = 0xc082cc4d "../../../kern/vfs_lookup.c", line = 0x16a, v_holdcnt = 0x2, v_usecount = 0x5d,
  v_vxthread = 0x0, v_iflag = 0x0, v_vflag = 0x0, v_writecount = 0x0, v_freelist = {tqe_next = 0x0, tqe_prev = 0xc1aa8210}, v_bufobj = {
    bo_mtx = 0xc1ac8094, bo_clean = {bv_hd = {tqh_first = 0x0, tqh_last = 0xc1ac80e8}, bv_root = 0x0, bv_cnt = 0x0}, bo_dirty = {bv_hd = {
        tqh_first = 0xc66653c8, tqh_last = 0xc6665400}, bv_root = 0xc66653c8, bv_cnt = 0x1}, bo_numoutput = 0x0, bo_flag = 0x1,
    bo_ops = 0xc088c488, bo_bsize = 0x4000, bo_object = 0xc1ac1630, bo_synclist = {le_next = 0xc18790e4, le_prev = 0xc1688b04},
    bo_private = 0xc1ac8000, __bo_vnode = 0xc1ac8000}, v_pollinfo = 0x0, v_label = 0x0}
(kgdb) p *(struct lock *)0xc66652c4
$5 = {lk_interlock = 0xc08f4ee4, lk_flags = 0x200400, lk_sharecount = 0x0, lk_waitcount = 0x5, lk_exclusivecount = 0x1, lk_prio = 0x50,
  lk_wmesg = 0xc082bfff "getblk", lk_timo = 0x0, lk_lockholder = 0xc1b6a8a0, lk_newlock = 0x0,
  lk_filename = 0xc082bb84 "../../../sys/buf.h", lk_lockername = 0xc081d4dd "lockmgr", lk_lineno = 0x129, lk_slockholder = 0xffffffff,
  lk_sfilename = 0xc07fda86 "none", lk_slockername = 0xc082294b "never share locked", lk_slineno = 0x0}
(kgdb) p/d (*(struct thread *)0xc1b6a8a0)->td_proc.p_pid
$6 = 61240
(kgdb) btp 61240
 frame 0 at 0xcfc2d798: ebp cfc2d7e8, eip 0xc0617254 <mi_switch+612>:   add    $0xc,%esp
 frame 1 at 0xcfc2d7e8: ebp cfc2d808, eip 0xc0630e68 <turnstile_wait+760>:      add    $0x8,%esp
 frame 2 at 0xcfc2d808: ebp cfc2d828, eip 0xc0609bbe <_mtx_lock_sleep+354>:     add    $0x8,%esp
 frame 3 at 0xcfc2d828: ebp cfc2d850, eip 0xc06097b1 <_mtx_lock_flags+133>:     add    $0x14,%esp
 frame 4 at 0xcfc2d850: ebp cfc2d870, eip 0xc0607e08 <malloc_type_zone_allocated+32>:   addl   $0x1,0x10(%ebx)
 frame 5 at 0xcfc2d870: ebp cfc2d894, eip 0xc0607fa1 <malloc+213>:      add    $0xc,%esp
 frame 6 at 0xcfc2d894: ebp cfc2d8c4, eip 0xc07441fb <inodedep_lookup+167>:     mov    %eax,%ebx
 frame 7 at 0xcfc2d8c4: ebp cfc2d8f4, eip 0xc0744788 <softdep_setup_inomapdep+52>:      add    $0x20,%esp
 frame 8 at 0xcfc2d8f4: ebp cfc2d96c, eip 0xc0737fc7 <ffs_nodealloccg+1583>:    add    $0xc,%esp
 frame 9 at 0xcfc2d96c: ebp cfc2d9b0, eip 0xc073697b <ffs_hashalloc+67>:        add    $0x24,%esp
 frame 10 at 0xcfc2d9b0: ebp cfc2d9f4, eip 0xc07360b3 <ffs_valloc+223>: mov    %eax,%ebx
 frame 11 at 0xcfc2d9f4: ebp cfc2dba4, eip 0xc0759ee8 <ufs_mkdir+128>:  mov    %eax,%esi
 frame 12 at 0xcfc2dba4: ebp cfc2dbb4, eip 0xc07d0e5a <VOP_MKDIR_APV+126>:      add    $0x4,%esp
 frame 13 at 0xcfc2dbb4: ebp cfc2dcd4, eip 0xc066bb52 <kern_mkdir+714>: add    $0x8,%esp
 frame 14 at 0xcfc2dcd4: ebp cfc2dcec, eip 0xc066b885 <mkdir+21>:       leave
 frame 15 at 0xcfc2dcec: ebp cfc2dd40, eip 0xc07bd713 <syscall+531>:    mov    %eax,%ebx
(kgdb) l *inodedep_lookup+167
0xc07441fb is in inodedep_lookup (../../../ufs/ffs/ffs_softdep.c:1151).
1146             * If we are over our limit, try to improve the situation.
1147             */
1148            if (num_inodedep > max_softdeps  && (flags & NODELAY) == 0)
1149                    request_cleanup(FLUSH_INODES);
1150            FREE_LOCK(&lk);
1151            MALLOC(inodedep, struct inodedep *, sizeof(struct inodedep),
1152                    M_INODEDEP, M_SOFTDEP_FLAGS);
1153            ACQUIRE_LOCK(&lk);
1154            if (inodedep_find(inodedephd, fs, inum, inodedeppp)) {
1155                    FREE(inodedep, M_INODEDEP);
$ egrep " R" /var/crash/ps.226
  UID   PID  PPID CPU PRI NI   VSZ   RSS MWCHAN STAT  TT       TIME COMMAND
    0     6     0   0   8  0     0     0 -      RL    ??    0:00,00 [thread taskq]
    0    11     0 277 171  0     0     0 -      RL    ??  400:39,54 [idle: cpu0]
 1001 61171 61163 215 122  0  1224     0 -      R+   #C:    0:00,38 [creat]
 1001 61172 61163 209 122  0  1224     0 -      R+   #C:    0:00,25 [creat]
 1001 61181 61162   0 132  0  7916     0 -      R+   #C:    0:38,88 [thr1]
 1001 61183 61162   0 120  0  8776     0 -      RL+  #C:    1:47,91 [thr1]
 1001 61184 61163 210 122  0  1224     0 -      R+   #C:    0:00,39 [creat]
 1001 61185 61163 210 122  0  1224     0 -      R+   #C:    0:00,39 [creat]
 1001 61186 61163 210 122  0  1224     0 -      R+   #C:    0:00,26 [creat]
 1001 61189 61163 204 121  0  1224     0 -      R+   #C:    0:00,20 [creat]
 1001 61198 61197 203 121  0  1436     0 -      R    #C:    0:00,17 [fstat]
 1001 61202 61175 209 122  0  1320     0 -      R+   #C:    0:00,40 [tcp]
 1001 61204 61201 192 120  0  1260     0 -      R+   #C:    0:00,12 [udp]
 1001 61205 61201 203 121  0  1252     0 -      R+   #C:    0:00,23 [udp]
 1001 61206 61190 295 118  0 33524     0 -      R+   #C:   13:17,76 [swap]
 1001 61209 61190 219 123  0 20504     0 -      R+   #C:    0:00,06 [swap]
 1001 61212 61190 224 124  0 30264     0 -      R+   #C:    0:00,07 [swap]
 1001 61213 61190 222 123  0 22564     0 -      R+   #C:    0:00,09 [swap]
 1001 61219 61191 216 123  0  1240     0 -      R+   #C:    0:00,04 [rw]
 1001 61224 61190 224 124  0 25792     0 -      R+   #C:    0:00,09 [swap]
 1001 61226 61190 285 131  0 29540     0 -      RL+  #C:    0:00,23 [swap]
 1001 61228 61190 223 123  0 30524     0 -      R+   #C:    0:00,07 [swap]
 1001 61230 61201 204 121  0  1252     0 -      R+   #C:    0:00,37 [udp]
 1001 61231 61201 192 120  0  1252     0 -      R+   #C:    0:00,07 [udp]
 1001 61232 61201 192 120  0  1252     0 -      R+   #C:    0:00,10 [udp]
 1001 61233 61201 211 122  0  1252     0 -      R+   #C:    0:00,33 [udp]
 1001 61234 61201 202 121  0  1252     0 -      R+   #C:    0:00,25 [udp]
 1001 61235 61201 203 121  0  1252     0 -      R+   #C:    0:00,22 [udp]
 1001 61236 61201 203 121  0  1252     0 -      R+   #C:    0:00,21 [udp]
 1001 61237 61201 207 121  0  1252     0 -      R+   #C:    0:00,24 [udp]
 1001 61238 61229 209 122  0  1468     0 -      R    #C:    0:00,20 [fstat]
 1001 61239 39181 203 121  0  1664     0 -      RL   #C:    0:00,02 [sh]
 1001 61240 61203 194 120  0  1228     0 -      R+   #C:    0:00,04 [mkdir]
 1001 61244 61160 206 121  0  1604     0 -      R    #C:    0:00,23 [sysctl]
 1001 61247 61246 209 122  0  1480     0 -      R    #C:    0:00,14 [fstat]
 1001 61265 39183 209 122  0   380     0 -      R    #C:    0:00,00 [sh]
 1001 61271 61196 202 121  0  1476     0 -      R    #C:    0:00,09 [sysctl]
 1001 61272 61195 203 121  0  1476     0 -      R    #C:    0:00,08 [sysctl]
 1001 61274 61199 207 121  0  1476     0 -      R    #C:    0:00,08 [sysctl]
 1001 61281 61176 192 120  0  1320     0 -      R+   #C:    0:00,07 [tcp]
 1001 61284 61218 192 120  0  1668     0 -      R+   #C:    0:00,02 [sh]
 1001 61285 61173 192 120  0  1320     0 -      R+   #C:    0:00,04 [tcp]
 1001 61286 61215 202 121  0  1236     0 -      RV+  #C:    0:00,00 [rw]
 1001 61287 61174 203 121  0  1228     0 -      R+   #C:    0:00,00 [tcp]
 1001 61288 61277 198 120  0  1668     0 -      R+   #C:    0:00,00 [sh]
 1001 61289 61192 202 121  0  1228     0 -      R+   #C:    0:00,00 [tcp]
 1001 61290 61223 203 121  0  1236     0 -      RV+  #C:    0:00,00 [rw]
 1001 61295 61211 201 121  0  1232     0 -      RV+  #C:    0:00,00 [swap]
 1001 61296 61208 202 121  0  1232     0 -      RV+  #C:    0:00,00 [swap]
    0 61245 47535 209 122  0  1680     0 -      RL+  #C:    0:00,00 [sh]
    0 61300 61245 209 122  0  1232     0 -      R+   #C:    0:00,00 [sh]