Consistent file system hang with RELENG_6 of today ...

Marc G. Fournier scrappy at hub.org
Sat Aug 6 04:49:36 GMT 2005


It was suggested that I may want to post this to -current ... I've posted 
a PR to GNaTs as well, which includes output with vfs.uniondebug enabled, 
in cae that might help too ...

Basically, the problem is that the system pretty much hangs as soon as you 
run 'jail' where the usr directory is a unionfs ... it hangs consistently 
at the point that sendmail starts, where sendmail == postfix, which is 
located on /usr/local/sbin ...

The following output was suggested by Robert Watson, as a first step in 
trying to disagnose teh problem ... the kernel in this was from July 30th, 
and i've been meticulously watching commits to RELENG_6 for anything that 
might pertain ...


'k, here's the first run at it ... I've got everything setup now, so that I can 
"recreate" at will, to provide more information ... and, I took a fresh core 
dump, in case that can help any ...



ganymede# /usr/sbin/jail /vm/1/test.hub.org test.hub.org 192.168.0.65 4 
/bin/sh /etc/rc
/etc/rc: cannot create /dev/null: error 45
Skipping disk checks ...
/etc/rc: cannot create /dev/null: error 45
cp: /dev/null: Operation not supported
Doing initial network setup:.
/etc/rc: cannot create /dev/null: error 45
Additional routing options:.
Routing daemons:.
/etc/rc: cannot create /dev/null: error 45
/etc/rc: cannot create /dev/null: error 45
Clearing /tmp:.
Additional daemons: syslogd.
Doing additional network setup:.
Starting final network daemons: creating ssh1 RSA host key
PRNG is not seeded
  creating ssh2 RSA host key
/etc/rc: /usr/bin/ssh-keygen: permission denied
  creating ssh2 DSA host key
/etc/rc: /usr/bin/ssh-keygen: permission denied
.
ELF ldconfig path: /usr/lib /usr/lib/compat /usr/X11R6/lib /usr/local/lib
a.out ldconfig path: /usr/lib/aout /usr/lib/compat/aout /usr/X11R6/lib/aout
Starting standard daemons: cron sshdPRNG is not seeded
  sendmail.
load: 0.00  cmd: sendmail 1454 [union] 0.00u 0.00s 0% 60k
load: 0.00  cmd: sendmail 1454 [union] 0.00u 0.00s 0% 60k
KDB: enter: manual escape to debugger
[thread pid 13 tid 100003 ]
Stopped at      kdb_enter+0x2b: nop db> show pcpu
cpuid        = 0
curthread    = 0xc1ec9a80: pid 13 "irq1: atkbd0"
curpcb       = 0xe3254d90
fpcurthread  = none
idlethread   = 0xc1ec9780: pid 11 "idle: cpu0"
APIC ID      = 0
currentldt   = 0x50
db> show pcpu 0
cpuid        = 0
curthread    = 0xc1ec9a80: pid 13 "irq1: atkbd0"
curpcb       = 0xe3254d90
fpcurthread  = none
idlethread   = 0xc1ec9780: pid 11 "idle: cpu0"
APIC ID      = 0
currentldt   = 0x50
db> ps
   pid   proc     uid  ppid  pgrp  flag   stat  wmesg    wchan  cmd
  1454 c23aec48    0     1  1389 4000002 [SLPQ union 0xc4cb6058][SLP] sendmail
  1450 c2312000    0     1  1450 0000000 [SLPQ ufs 0xc278e6b8][SLP] cron
  1440 c2313000    0     1  1440 0000000 [SLPQ select 0xc0672ee4][SLP] syslogd
  1389 c23fc830    0  1385  1389 0004002 [SLPQ union 0xc2291af8][SLP] sh
  1385 c2f7c830    0   812  1385 0004002 [SLPQ pause 0xc2f7c864][SLP] csh
  1384 c2190c48 1001   627   627 0004100 [SLPQ lockf 0xc27d05c0][SLP] smtpd
  1383 c2f7c418 1001   627   627 0004100 [SLPQ lockf 0xc225f680][SLP] smtpd
  1382 c2f7c20c 1001   627   627 0004100 [SLPQ lockf 0xc27d0a40][SLP] smtpd
  1381 c2665c48 1001   627   627 0004100 [SLPQ lockf 0xc2d15240][SLP] smtpd
  1380 c23ae418   60   657   657 0004001 [SLPQ select 0xc0672ee4][SLP] lmtpd
  1379 c2f7c000 1001   627   627 0004100 [SLPQ select 0xc0672ee4][SLP] lmtp
  1378 c2f7ca3c    0   627   627 0004100 [SLPQ select 0xc0672ee4][SLP] local
  1377 c2f79c48 1001   627   627 0004100 [SLPQ select 0xc0672ee4][SLP] cleanup
  1376 c23af000 1001   627   627 0004100 [SLPQ select 0xc0672ee4][SLP] 
trivial-rewrite
  1375 c2f7c624 1001   627   627 0004100 [SLPQ select 0xc0672ee4][SLP] proxymap
  1374 c2f7cc48 1001   627   627 0004100 [SLPQ select 0xc0672ee4][SLP] smtpd
  1352 c2313a3c    0   805    45 0004000 [SLPQ nanslp 0xc066c34c][SLP] fsck_ufs
   813 c23fc624    0   809   813 0004002 [SLPQ ufs 0xc278e6b8][SLP] csh
   812 c23fcc48    0     1   812 0004102 [SLPQ wait 0xc23fcc48][SLP] login
   811 c2664418    0     1   811 0004002 [SLPQ ttyin 0xc2039c10][SLP] getty
   810 c218f20c    0     1   810 0004002 [SLPQ ttyin 0xc2039410][SLP] getty
   809 c23a8c48    0     1   809 0004102 [SLPQ wait 0xc23a8c48][SLP] login
   806 c2664624    0     1    45 0004002 [SLPQ piperd 0xc23a5198][SLP] logger
   805 c2664000    0   804    45 0004002 [SLPQ wait 0xc2664000][SLP] fsck
   804 c266420c    0     1    45 0000002 [SLPQ wait 0xc266420c][SLP] sh
   793 c2664830    0   706   706 0000000 [SLPQ accept 0xc236d892][SLP] perl
   792 c2664a3c    0   706   706 0000000 [SLPQ accept 0xc236d892][SLP] perl
   791 c2664c48    0   706   706 0000000 [SLPQ accept 0xc236d892][SLP] perl
   790 c2665000    0   706   706 0000000 [SLPQ accept 0xc236d892][SLP] perl
   789 c266520c    0   706   706 0000000 [SLPQ accept 0xc236d892][SLP] perl
   788 c2665418    0   706   706 0000000 [SLPQ accept 0xc236d892][SLP] perl
   787 c2665624    0   706   706 0000000 [SLPQ accept 0xc236d892][SLP] perl
   786 c2665830    0   706   706 0000000 [SLPQ accept 0xc236d892][SLP] perl
   785 c23af418    0   706   706 0000000 [SLPQ accept 0xc236d892][SLP] perl
   784 c23fb20c    0   706   706 0000000 [SLPQ accept 0xc236d892][SLP] perl
   783 c23af20c    0   706   706 0000000 [SLPQ accept 0xc236d892][SLP] perl
   782 c23a8830    0   706   706 0000000 [SLPQ accept 0xc236d892][SLP] perl
   781 c23af624    0   706   706 0000000 [SLPQ accept 0xc236d892][SLP] perl
   780 c23fb624    0   706   706 0000000 [SLPQ accept 0xc236d892][SLP] perl
   779 c23fc000    0   706   706 0000000 [SLPQ accept 0xc236d892][SLP] perl
   778 c23a8a3c    0   706   706 0000000 [SLPQ accept 0xc236d892][SLP] perl
   777 c2313830    0   706   706 0000000 [SLPQ accept 0xc236d892][SLP] perl
   776 c23fbc48    0   706   706 0000000 [SLPQ accept 0xc236d892][SLP] perl
   775 c23a820c    0   706   706 0000000 [SLPQ accept 0xc236d892][SLP] perl
   774 c23fb830    0   706   706 0000000 [SLPQ accept 0xc236d892][SLP] perl
   757 c23afa3c    0     1   757 0000000 [SLPQ select 0xc0672ee4][SLP] moused
   752 c23af830    0   726   726 0000101 [SLPQ pause 0xc23af864][SLP] smbd
   726 c23afc48    0     1   726 0000101 [SLPQ select 0xc0672ee4][SLP] smbd
   725 c23fb000   60   657   657 0004001 [SLPQ select 0xc0672ee4][SLP] imapd
   721 c23fba3c    0     1   721 0000001 [SLPQ select 0xc0672ee4][SLP] nmbd
   706 c23fc20c    0     1   706 0000000 [SLPQ pause 0xc23fc240][SLP] perl
   691 c23fb418    0     1   691 0000101 [SLPQ select 0xc0672ee4][SLP] proftpd
   684 c23fc418   80   637   637 0000100 [SLPQ accept 0xc239319e][SLP] httpd
   683 c2190830   80   637   637 0000100 [SLPQ accept 0xc239319e][SLP] httpd
   682 c2312830   80   637   637 0000100 [SLPQ accept 0xc239319e][SLP] httpd
   681 c23a8418   80   637   637 0000100 [SLPQ accept 0xc239319e][SLP] httpd
   680 c23a8000   80   637   637 0000100 [SLPQ accept 0xc239319e][SLP] httpd
   661 c23a8624    0     1    45 0004002 [SLPQ select 0xc0672ee4][SLP] imspd
   657 c23ae000   60     1   657 0000101 [SLPQ select 0xc0672ee4][SLP] master
   637 c2313418    0     1   637 0000000 [SLPQ select 0xc0672ee4][SLP] httpd
   629 c231320c 1001   627   627 0004100 [SLPQ select 0xc0672ee4][SLP] qmgr
   628 c229b418 1001   627   627 0004100 [SLPQ select 0xc0672ee4][SLP] pickup
   627 c2312418    0     1   627 0004100 [SLPQ select 0xc0672ee4][SLP] master
   553 c229ba3c    0     1   553 0000000 [SLPQ nanslp 0xc066c34c][SLP] cron
   536 c1f83c48    0     1   536 0000100 [SLPQ select 0xc0672ee4][SLP] sshd
   527 c229b000    1     1   527 0000100 [SLPQ sbwait 0xc227ba64][SLP] rwhod
   448 c2190624    0   443   443 0000000 [SLPQ - 0xc22d0a00][SLP] nfsd
   447 c2190418    0   443   443 0000000 [SLPQ - 0xc22d0c00][SLP] nfsd
   446 c1f83830    0   443   443 0000000 [SLPQ - 0xc22d0e00][SLP] nfsd
   445 c219020c    0   443   443 0000000 [SLPQ - 0xc22d0800][SLP] nfsd
   443 c2190a3c    0     1   443 0000000 [SLPQ accept 0xc22ce03a][SLP] nfsd
   429 c229bc48    0     1   429 0000000 [SLPQ select 0xc0672ee4][SLP] mountd
   425 c229b20c    0     1   425 0000000 [SLPQ select 0xc0672ee4][SLP] rpcbind
   352 c1f83a3c   53     1   352 0008180 (threaded)  named
    thread 0xc22b6000 ksegrp 0xc1ecb000 [SLPQ kserel 0xc1ecb034][SLP]
    thread 0xc22b5d80 ksegrp 0xc1ecb000 [SLPQ select 0xc0672ee4][SLP]
    thread 0xc2191180 ksegrp 0xc1ecc780 [SLPQ ksesigwait 0xc1f83b74][SLP]
   291 c229b830    0     1   291 0000000 [SLPQ select 0xc0672ee4][SLP] syslogd
   258 c218f000    0     1   258 0000000 [SLPQ select 0xc0672ee4][SLP] devd
    44 c218f418    0     0     0 0000204 [SLPQ - 0xe4cd4d08][SLP] schedcpu
    43 c218f624    0     0     0 0000204 [SLPQ syncer 0xc066c0bc][SLP] syncer
    42 c218f830    0     0     0 0000204 [SLPQ vlruwt 0xc218f830][SLP] vnlru
    41 c218fa3c    0     0     0 0000204 [SLPQ psleep 0xc067342c][SLP] bufdaemon
    40 c218fc48    0     0     0 000020c [SLPQ pgzero 0xc067bc04][SLP] pagezero
    39 c2190000    0     0     0 0000204 [SLPQ psleep 0xc067b754][SLP] vmdaemon
    38 c1f1ec48    0     0     0 0000204 [SLPQ psleep 0xc067b710][SLP] 
pagedaemon
    37 c1f80000    0     0     0 0000204 [IWAIT] swi0: sio
    36 c1f8020c    0     0     0 0000204 [SLPQ - 0xc1f7f43c][SLP] fdc0
    35 c1f80418    0     0     0 0000204 [SLPQ tzpoll 0xc0778674][SLP] 
acpi_thermal
     9 c1f80624    0     0     0 0000204 [SLPQ - 0xc1ec7b80][SLP] thread taskq
    34 c1f80830    0     0     0 0000204 [IWAIT] swi6:+
     8 c1f80a3c    0     0     0 0000204 [SLPQ - 0xc1ec7d00][SLP] acpi_task2
     7 c1f80c48    0     0     0 0000204 [SLPQ - 0xc1ec7d00][SLP] acpi_task1
     6 c1f83000    0     0     0 0000204 [SLPQ - 0xc1ec7d00][SLP] acpi_task0
    33 c1f8320c    0     0     0 0000204 [IWAIT] swi6: task queue
    32 c1f83418    0     0     0 0000204 [IWAIT] swi2: cambio
     5 c1f16624    0     0     0 0000204 [SLPQ - 0xc1f15080][SLP] kqueue taskq
    31 c1f16830    0     0     0 0000204 [IWAIT] swi5:+
    30 c1f16a3c    0     0     0 0000204 [SLPQ - 0xc0666ec0][SLP] yarrow
     4 c1f16c48    0     0     0 0000204 [SLPQ - 0xc0669868][SLP] g_down
     3 c1f1e000    0     0     0 0000204 [SLPQ - 0xc0669864][SLP] g_up
     2 c1f1e20c    0     0     0 0000204 [SLPQ - 0xc066985c][SLP] g_event
    29 c1f1e418    0     0     0 0000204 [IWAIT] swi3: vm
    28 c1f1e624    0     0     0 000020c [RUNQ] swi4: clock sio
    27 c1f1e830    0     0     0 0000204 [IWAIT] swi1: net
    26 c1f1ea3c    0     0     0 0000204 [IWAIT] irq15: ata1
    25 c1ecd20c    0     0     0 0000204 [IWAIT] irq14: ata0
    24 c1ecd418    0     0     0 0000204 [IWAIT] irq13:
    23 c1ecd624    0     0     0 0000204 [IWAIT] irq12: psm0
    22 c1ecd830    0     0     0 0000204 [IWAIT] irq11: pcm0
    21 c1ecda3c    0     0     0 0000204 [IWAIT] irq10: rl0
    20 c1ecdc48    0     0     0 0000204 [IWAIT] irq9: acpi0
    19 c1f16000    0     0     0 0000204 [IWAIT] irq8: rtc
    18 c1f1620c    0     0     0 0000204 [IWAIT] irq7: fxp0
    17 c1f16418    0     0     0 0000204 [IWAIT] irq6: fdc0
    16 c1ec8000    0     0     0 0000204 [IWAIT] irq5:
    15 c1ec820c    0     0     0 0000204 [IWAIT] irq4: sio0
    14 c1ec8418    0     0     0 0000204 [IWAIT] irq3:
    13 c1ec8624    0     0     0 0000204 [CPU 0] irq1: atkbd0
    12 c1ec8830    0     0     0 0000204 [IWAIT] irq0: clk
    11 c1ec8a3c    0     0     0 000020c [Can run] idle: cpu0
     1 c1ec8c48    0     0     1 0004200 [SLPQ wait 0xc1ec8c48][SLP] init
    10 c1ecd000    0     0     0 0000204 [SLPQ ktrace 0xc066a2b8][SLP] ktrace
     0 c0669960    0     0     0 0000200 [IWAIT] swapper
db> show pcpu
cpuid        = 0
curthread    = 0xc1ec9a80: pid 13 "irq1: atkbd0"
curpcb       = 0xe3254d90
fpcurthread  = none
idlethread   = 0xc1ec9780: pid 11 "idle: cpu0"
APIC ID      = 0
currentldt   = 0x50
db> trace 13
Tracing pid 13 tid 100003 td 0xc1ec9a80
kdb_enter(c062dfe9) at kdb_enter+0x2b
scgetc(c0695880,2,1,c2036c00,c067bc20) at scgetc+0x510
sckbdevent(c067bc20,0,c0695880) at sckbdevent+0x1c8
atkbd_intr(c067bc20,0,e3254d10,c04b8589,c067bc20) at atkbd_intr+0x20
atkbdintr(c067bc20) at atkbdintr+0x16
ithread_loop(c1ec6900,e3254d38) at ithread_loop+0x14d
fork_exit(c04b843c,c1ec6900,e3254d38) at fork_exit+0x71
fork_trampoline() at fork_trampoline+0x8
--- trap 0x1, eip = 0, esp = 0xe3254d6c, ebp = 0 ---
db> show lockedvnods
Locked vnodes

0xc27afbb0: tag ufs, type VDIR
     usecount 1, writecount 0, refcount 4 mountedhere 0
     flags ()
     v_object 0xc0c68318 ref 0 pages 1
      lock type ufs: EXCL (count 1) by thread 0xc23a9c00 (pid 813)
 	ino 49701, on dev ad0s1a

0xc278e660: tag ufs, type VDIR
     usecount 14, writecount 0, refcount 15 mountedhere 0
     flags ()
     v_object 0xc374f6b4 ref 0 pages 0
      lock type ufs: EXCL (count 1) by thread 0xc22b6600 (pid 1454) with 2 
pending
 	ino 49704, on dev ad0s1a

0xc4cb6000: tag union, type VDIR
     usecount 9, writecount 0, refcount 9 mountedhere 0
     flags (VV_ROOT)
      lock type union: EXCL (count 1) by thread 0xc23a9a80 (pid 1389) with 1 
pending
 	vp=0xc4cb6000, uppervp=0xc4cafcc0, lowervp=0xc27d7550
union: upper
0xc4cafcc0: tag ufs, type VDIR
     usecount 12, writecount 0, refcount 13 mountedhere 0xc201d800
     flags ()

 	ino 17736, on dev ad0s1a
union: lower
0xc27d7550: tag ufs, type VDIR
     usecount 3, writecount 0, refcount 4 mountedhere 0
     flags ()
     v_object 0xc343ee70 ref 0 pages 0

 	ino 8470704, on dev ad1s1a

0xc2291aa0: tag union, type VDIR
     usecount 5, writecount 0, refcount 5 mountedhere 0
     flags ()
      lock type union: EXCL (count 1) by thread 0xc2f7b600 (pid 1461) with 1 
pending
 	vp=0xc2291aa0, uppervp=0xc2291000, lowervp=0xc3445990
union: upper
0xc2291000: tag ufs, type VDIR
     usecount 5, writecount 0, refcount 6 mountedhere 0
     flags ()

 	ino 17752, on dev ad0s1a
union: lower
0xc3445990: tag ufs, type VDIR
     usecount 2, writecount 0, refcount 4 mountedhere 0
     flags ()
     v_object 0xc4b1f630 ref 0 pages 1

 	ino 8494974, on dev ad1s1a
db> trace 813
Tracing pid 813 tid 100111 td 0xc23a9c00
sched_switch(c23a9c00,0,1) at sched_switch+0x14b
mi_switch(1,0,c23a9c00,0,c23a9c00) at mi_switch+0x1ba
sleepq_switch(c278e6b8) at sleepq_switch+0x133
sleepq_wait(c278e6b8,0,c05b0514,0,c278e6b8) at sleepq_wait+0xb
msleep(c278e6b8,c066a90c,50,c0622b25,0) at msleep+0x356
acquire(ef202974,40,60000,c23a9c00,0) at acquire+0x76
lockmgr(c278e6b8,2002,c278e6dc,c23a9c00,ef202998) at lockmgr+0x3f6
vop_stdlock(ef2029e0,c0656f40,ef2029e0,ef2029a8,c0591a18) at vop_stdlock+0x1e
VOP_LOCK_APV(c0657480,ef2029e0,ef2029bc,c0602457,ef2029e0) at VOP_LOCK_APV+0x43
ffs_lock(ef2029e0,2002,c278e660,ef2029fc,c05308bc) at ffs_lock+0x10
VOP_LOCK_APV(c0656f40,ef2029e0) at VOP_LOCK_APV+0x43
vn_lock(c278e660,2002,c23a9c00,c278e660,2002) at vn_lock+0xf4
vget(c278e660,2002,c23a9c00,3002,c21b6c2c) at vget+0xba
cache_lookup(c27afbb0,ef202c14,ef202c28) at cache_lookup+0x441
vfs_cache_lookup(ef202b18,c27afbb0,c362b012,ef202b34,c051dd09) at 
vfs_cache_lookup+0x8f
VOP_LOOKUP_APV(c0656f40,ef202b18) at VOP_LOOKUP_APV+0x43
lookup(ef202c00,c27afbb0,0,c23a9c00,ef202c28) at lookup+0x431
namei(ef202c00,0,c064fde0,ef202c24,c21c7a68) at namei+0x396
kern_stat(c23a9c00,80e3008,0,ef202c74) at kern_stat+0x35
stat(c23a9c00,ef202d04,2,0,246) at stat+0x1b
syscall(3b,3b,3b,bfbde55c,bfbcd060) at syscall+0x2bb
Xint0x80_syscall() at Xint0x80_syscall+0x1f
--- syscall (188, FreeBSD ELF32, stat), eip = 0x2814ba47, esp = 0xbfbcbbac, ebp 
= 0xbfbccc28 ---
db> trace 1454
Tracing pid 1454 tid 100093 td 0xc22b6600
sched_switch(c22b6600,0,1) at sched_switch+0x14b
mi_switch(1,0,c22b6600,2,c22b6600) at mi_switch+0x1ba
sleepq_switch(c4cb6058) at sleepq_switch+0x133
sleepq_wait(c4cb6058,0,ef1be7dc,0,c4cb6058) at sleepq_wait+0xb
msleep(c4cb6058,c066b350,50,c4cc1a6f,0) at msleep+0x356
acquire(ef1be830,80,60000,c22b6600,0) at acquire+0x76
lockmgr(c4cb6058,2002,c4cb607c,c22b6600,ef1be854) at lockmgr+0x3f6
vop_stdlock(ef1be878,2,c4cb6000,ef1be894,c05308bc) at vop_stdlock+0x1e
VOP_LOCK_APV(c4cc2240,ef1be878) at VOP_LOCK_APV+0x43
vn_lock(c4cb6000,2,c22b6600,1,12) at vn_lock+0xf4
union_allocvp(ef1be948,c201d800,0,0,0) at union_allocvp+0x165
union_root(c201d800,2,ef1be948,c22b6600,1) at union_root+0x3f
lookup(c2f53300,8055000,0,c22b6600,c2f53328) at lookup+0x6d7
namei(c2f53300,3,0,0,0) at namei+0x396
elf32_load_file(c23aec48,e335f0f4,ef1bea84,ef1bec00,1000) at 
elf32_load_file+0xa8
exec_elf32_imgact(ef1bebe8,0,1,0,0) at exec_elf32_imgact+0x52c
do_execve(c22b6600,ef1becb4,0,0,ef1becb4) at do_execve+0x23a
kern_execve(c22b6600,ef1becb4,0,df1d2000,df1d2000) at kern_execve+0xcc
execve(c22b6600,ef1bed04,3,0,293) at execve+0x32
syscall(3b,3b,3b,0,8068da8) at syscall+0x2bb
Xint0x80_syscall() at Xint0x80_syscall+0x1f
--- syscall (59, FreeBSD ELF32, execve), eip = 0x2817a634, esp = 0xbfbfec44, 
ebp = 0xbfbfec70 ---
db> trace 1389
Tracing pid 1389 tid 100112 td 0xc23a9a80
sched_switch(c23a9a80,0,1) at sched_switch+0x14b
mi_switch(1,0,c23a9a80,1,c23a9a80) at mi_switch+0x1ba
sleepq_switch(c2291af8) at sleepq_switch+0x133
sleepq_wait(c2291af8,0,c0524382,0,c2291af8) at sleepq_wait+0xb
msleep(c2291af8,c066aff0,50,c4cc1a6f,0) at msleep+0x356
acquire(ef1ff92c,80,60000,c23a9a80,0) at acquire+0x76
lockmgr(c2291af8,2002,c2291b1c,c23a9a80,ef1ff950) at lockmgr+0x3f6
vop_stdlock(ef1ff974,2,c2291aa0,ef1ff990,c05308bc) at vop_stdlock+0x1e
VOP_LOCK_APV(c4cc2240,ef1ff974) at VOP_LOCK_APV+0x43
vn_lock(c2291aa0,2,c23a9a80,0,9) at vn_lock+0xf4
union_allocvp(ef1ffc14,c201d800,c4cb6000,c4cafcc0,ef1ffc28) at 
union_allocvp+0x165
union_lookup(ef1ffb18,c4cb6000,c21b8809,ef1ffb34,c051dd09) at 
union_lookup+0x2cf
VOP_LOOKUP_APV(c4cc2240,ef1ffb18) at VOP_LOOKUP_APV+0x43
lookup(ef1ffc00,0,0,c23a9a80,ef1ffc28) at lookup+0x431
namei(ef1ffc00,c05aba97,ef1ffbbc,ef1ffbbc,c37a4948) at namei+0x396
kern_stat(c23a9a80,80b59d8,0,ef1ffc74) at kern_stat+0x35
stat(c23a9a80,ef1ffd04,2,4,297) at stat+0x1b
syscall(3b,3b,3b,ffffffff,0) at syscall+0x2bb
Xint0x80_syscall() at Xint0x80_syscall+0x1f
--- syscall (188, FreeBSD ELF32, stat), eip = 0x8075858, esp = 0xbfbfeab4, ebp 
= 0xbfbfeb50 ---
db> trace 1461
Thread 1461 not found
db> panic
panic: from debugger
cpuid = 0
Uptime: 24m19s
Dumping 1023 MB (2 chunks)
   chunk 0: 1MB (159 pages) ... ok
   chunk 1: 1023MB (261872 pages) 1007 991 975 959 943 927 911 895 879 863 847 
831 815 799 783 767 751 735 719 703 687 671 655 639 623 607 591 575 559 543 527 
511 495 479 463 447 431 415 399 383 367 351 335 319 303 287 271 255 239 223 207 
191 175 159 143 127 111 95 79 63 47 31 15 ... ok

Dump complete
Automatic reboot in 15 seconds - press a key on the console to abort
Rebooting...


----
Marc G. Fournier           Hub.Org Networking Services (http://www.hub.org)
Email: scrappy at hub.org           Yahoo!: yscrappy              ICQ: 7615664
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