GENERIC HEAD from May 31 10:46 UTC, No vmcore

GDB: no debug ports present
KDB: debugger backends: ddb
KDB: current backend: ddb
Copyright (c) 1992-2008 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 is a registered trademark of The FreeBSD Foundation.
FreeBSD 8.0-CURRENT #2: Tue Jun  3 20:25:03 CEST 2008
    pho@crashbox.osted.lan:/usr/src/sys/i386/compile/PHO
WARNING: WITNESS option enabled, expect reduced performance.
Timecounter "i8254" frequency 1193182 Hz quality 0
CPU: Intel(R) XEON(TM) CPU 1.80GHz (1799.81-MHz 686-class CPU)
  Origin = "GenuineIntel"  Id = 0xf24  Stepping = 4
  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>
  Logical CPUs per core: 2
real memory  = 1073676288 (1023 MB)
avail memory = 1037516800 (989 MB)
:
Trying to mount root from ufs:/dev/ad0s1a
WARNING: / was not properly dismounted
lock order reversal: (sleepable after non-sleepable)
 1st 0xc433de64 bufobj interlock (bufobj interlock) @ kern/vfs_bio.c:2442
 2nd 0xd80ea918 bufwait (bufwait) @ kern/vfs_bio.c:2456
KDB: stack backtrace:
db_trace_self_wrapper(c0b335e0,c3da4784,c07c195e,c0b35e1d,d80ea918,...) at db_trace_self_wrapper+0x26
kdb_backtrace(c0b35e1d,d80ea918,c0b3aa2f,c0b3aa2f,c0b39fe5,...) at kdb_backtrace+0x29
witness_checkorder(d80ea918,9,c0b39fdc,998,c0c64574,...) at witness_checkorder+0x6de
__lockmgr_args(d80ea918,81900,c433de64,c0b3a964,50,...) at __lockmgr_args+0x777
getblk(c433dd70,0,0,800,0,...) at getblk+0x163
breadn(c433dd70,0,0,800,0,...) at breadn+0x44
bread(c433dd70,0,0,800,0,...) at bread+0x4c
ffs_blkatoff(c433dd70,0,0,0,c3da49a4,...) at ffs_blkatoff+0xd1
ufs_lookup(c3da49ec,c0b669e2,c433dd70,c433dd70,c3da4b50,...) at ufs_lookup+0x2e6
VOP_CACHEDLOOKUP_APV(c0c0dbe0,c3da49ec,c3da4b50,c3da4b3c,c40a9800,...) at VOP_CACHEDLOOKUP_APV+0xc5
vfs_cache_lookup(c3da4a6c,c0b3cd89,c0c25ee0,80000,c433dd70,...) at vfs_cache_lookup+0xd3
VOP_LOOKUP_APV(c0c0dbe0,c3da4a6c,c0b3b809,1b0,c3da4b3c,...) at VOP_LOOKUP_APV+0xe5
lookup(c3da4b24,c0b3b809,d8,c0,c407322c,...) at lookup+0x58e
namei(c3da4b24,c3da4b28,c07c113c,c0b3bb51,c0cabbb8,...) at namei+0x45b
kern_unlinkat(c40a4d20,ffffff9c,c0b3be90,1,c3da4c5c,...) at kern_unlinkat+0x46
kern_unlink(c40a4d20,c0b3be90,1,62f,0,...) at kern_unlink+0x27
vfs_mountroot_try(c0b3c04a,c0b29f01,c0b22a16,1,c07fe960,...) at vfs_mountroot_try+0x49f
vfs_mountroot(c0c576d0,4,c0b2b1c0,264,0,...) at vfs_mountroot+0x420
start_init(0,c3da4d38,c0b2cb12,324,c40a2d0c,...) at start_init+0x65
fork_exit(c074b620,0,c3da4d38) at fork_exit+0xb8
fork_trampoline() at fork_trampoline+0x8
--- trap 0, eip = 0, esp = 0xc3da4d70, ebp = 0 ---
fxp0: link state changed to UP
lock order reversal: (sleepable after non-sleepable)
 1st 0xd8293718 bufwait (bufwait) @ ufs/ffs/ffs_softdep.c:6119
 2nd 0xc0cb7ac4 Softdep Lock (Softdep Lock) @ ufs/ffs/ffs_softdep.c:5259
 3rd 0xd81cc7c0 bufwait (bufwait) @ ufs/ffs/ffs_softdep.c:6123
KDB: stack backtrace:
db_trace_self_wrapper(c0b335e0,e67e07fc,c07c195e,c0b35e36,d81cc7c0,...) at db_trace_self_wrapper+0x26
kdb_backtrace(c0b35e36,d81cc7c0,c0b3aa2f,c0b3aa2f,c0b52438,...) at kdb_backtrace+0x29
witness_checkorder(d81cc7c0,9,c0b5242f,17eb,e67e0820,...) at witness_checkorder+0x6de
__lockmgr_args(d81cc7c0,80900,c0cb7ac4,0,0,...) at __lockmgr_args+0x777
getdirtybuf(c0cb7ac4,0,c0b5242f,148b,131,...) at getdirtybuf+0xc3
softdep_sync_metadata(c5ccb560,0,c0b53cab,131,0,...) at softdep_sync_metadata+0x38c
ffs_syncvnode(c5ccb560,1,c0c0dbe0,e67e09f0,c0aaa055,...) at ffs_syncvnode+0x3e2
ffs_fsync(e67e0a5c,c0b664d1,5bf000,5bf000,0,...) at ffs_fsync+0x1c
VOP_FSYNC_APV(c0c0dbe0,e67e0a5c,e67e0b04,e67e0a70,c5e69c00,...) at VOP_FSYNC_APV+0xc5
nfsrv_commit(c5e69700,c4d37580,c45beaf0,e67e0c58,0,...) at nfsrv_commit+0x499
nfssvc(c45beaf0,e67e0cfc,8,c45beaf0,c0beb0e8,...) at nfssvc+0x964
syscall(e67e0d38) at syscall+0x2a3
Xint0x80_syscall() at Xint0x80_syscall+0x20
--- syscall (155, FreeBSD ELF32, nfssvc), eip = 0x280cf17b, esp = 0xbfbfeb2c, ebp = 0xbfbfeb48 ---
lock order reversal:
 1st 0xc48018b4 so_snd_sx (so_snd_sx) @ kern/uipc_sockbuf.c:148
 2nd 0xd80e6d8c bufwait (bufwait) @ vm/vm_pager.c:313
KDB: stack backtrace:
db_trace_self_wrapper(c0b335e0,e6af2718,c07c195e,c0b35e1d,d80e6d8c,...) at db_trace_self_wrapper+0x26
kdb_backtrace(c0b35e1d,d80e6d8c,c0b3aa2f,c0b3aa2f,c0b576f7,...) at kdb_backtrace+0x29
witness_checkorder(d80e6d8c,9,c0b576ee,139,e6af273c,...) at witness_checkorder+0x6de
__lockmgr_args(d80e6d8c,80000,0,0,0,...) at __lockmgr_args+0x777
initpbuf(c0cb8360,0,c0b576ee,164,3,...) at initpbuf+0xe0
getpbuf(c0cb7c4c,0,c0b54c0b,3ee,0,...) at getpbuf+0x12f
swap_pager_getpages(c4d5ac98,e6af295c,3,0,e6af2924,...) at swap_pager_getpages+0x201
vm_fault(c4e72c40,8122000,1,0,81220a0,...) at vm_fault+0xe71
trap_pfault(5,0,c0b6438d,e6af2a1c,c5eaf538,...) at trap_pfault+0x118
trap(e6af2a90) at trap+0x418
calltrap() at calltrap+0x6
--- trap 0xc, eip = 0xc0a9c556, esp = 0xe6af2ad0, ebp = 0xe6af2b08 ---
slow_copyin(c5b40c18,10,e6af2c60,1,0,...) at slow_copyin+0x6
m_uiotombuf(e6af2c60,2,a800,0,0,...) at m_uiotombuf+0xf7
sosend_generic(c48017a8,0,e6af2c60,0,0,...) at sosend_generic+0x432
sosend(c48017a8,0,e6af2c60,0,0,...) at sosend+0x54
soo_write(c45c33b8,e6af2c60,c4663000,0,c46028c0,...) at soo_write+0x4a
dofilewrite(e6af2c60,ffffffff,ffffffff,0,c45c33b8,...) at dofilewrite+0x95
kern_writev(c46028c0,3,e6af2c60,81220a0,10,...) at kern_writev+0x58
write(c46028c0,e6af2cfc,c,c0b1fbd9,c0bea2c0,...) at write+0x4f
syscall(e6af2d38) at syscall+0x2a3
Xint0x80_syscall() at Xint0x80_syscall+0x20
--- syscall (4, FreeBSD ELF32, write), eip = 0x281668b3, esp = 0xbfbfe6dc, ebp = 0xbfbfe728 ---


Fatal trap 12: page fault while in kernel mode
cpuid = 3; apic id = 07
fault virtual address   = 0x2a0
fault code              = supervisor read, page not present
instruction pointer     = 0x20:0xc091d567
stack pointer           = 0x28:0xe6b2597c
frame pointer           = 0x28:0xe6b259d8
code segment            = base 0x0, limit 0xfffff, type 0x1b
                        = DPL 0, pres 1, def32 1, gran 1
processor eflags        = interrupt enabled, resume, IOPL = 0
current process         = 15078 (mkdir)
[thread pid 15078 tid 100257 ]
Stopped at      nfs_loadattrcache+0x17: movl    0x2a0(%eax),%eax
db> set $lines 0
db> bt
Tracing pid 15078 tid 100257 td 0xc6048690
nfs_loadattrcache(e6b259f4,e6b25ad8,e6b25ae0,0,1,...) at nfs_loadattrcache+0x17
nfsm_postop_attr_xx(e6b25aec,e6b25ac8,e6b25ad8,e6b25ae0,80000,...) at nfsm_postop_attr_xx+0x6f
nfs_lookup(e6b25b5c,c0b3cd89,c0c25ee0,80000,c64d2560,...) at nfs_lookup+0x738
VOP_LOOKUP_APV(c0c09fe0,e6b25b5c,c0b3b809,1b0,e6b25c28,...) at VOP_LOOKUP_APV+0xe5
lookup(e6b25c10,c0b3b809,d8,c0,c6e19e2c,...) at lookup+0x58e
namei(e6b25c10,719,c0caa718,e6b25c34,c6e19e00,...) at namei+0x45b
kern_chdir(c6048690,804b3f0,0,e6b25d2c,c0a9eab3,...) at kern_chdir+0x4a
chdir(c6048690,e6b25cfc,4,c6048690,c0bea380,...) at chdir+0x22
syscall(e6b25d38) at syscall+0x2a3
Xint0x80_syscall() at Xint0x80_syscall+0x20
--- syscall (12, FreeBSD ELF32, chdir), eip = 0x280d08bf, esp = 0xbfbfdefc, ebp = 0xbfbfe328 ---
db> show allpcpu
Current CPU: 3

cpuid        = 0
curthread    = 0xc40a68c0: pid 3 "g_up"
curpcb       = 0xc3dccd90
fpcurthread  = none
idlethread   = 0xc40a4460: pid 11 "idle: cpu0"
APIC ID      = 0
currentldt   = 0x50
spin locks held:

cpuid        = 1
curthread    = 0xc5818690: pid 15384 "find"
curpcb       = 0xe6ed2d90
fpcurthread  = none
idlethread   = 0xc40a4690: pid 11 "idle: cpu1"
APIC ID      = 1
currentldt   = 0x50
spin locks held:

cpuid        = 2
curthread    = 0xc5b61af0: pid 15391 "umount"
curpcb       = 0xe6cabd90
fpcurthread  = none
idlethread   = 0xc40a48c0: pid 11 "idle: cpu2"
APIC ID      = 6
currentldt   = 0x50
spin locks held:

cpuid        = 3
curthread    = 0xc6048690: pid 15078 "mkdir"
curpcb       = 0xe6b25d90
fpcurthread  = none
idlethread   = 0xc40a4af0: pid 11 "idle: cpu3"
APIC ID      = 7
currentldt   = 0x50
spin locks held:

db> show alllocks
Process 15403 (mv) thread 0xc6d6c230 (100319)
exclusive lockmgr ufs r = 0 (0xc433ddc8) locked @ kern/vfs_lookup.c:432
Process 15401 (tail) thread 0xc44e98c0 (100399)
exclusive lockmgr ufs r = 0 (0xc457e5b8) locked @ kern/vfs_subr.c:2044
Process 15391 (umount) thread 0xc5b61af0 (100356)
exclusive lockmgr bufwait r = 0 (0xd815a51c) locked @ kern/vfs_subr.c:1182
exclusive lockmgr nfs r = 0 (0xc6127dc8) locked @ kern/vfs_subr.c:2349
exclusive sleep mutex Giant r = 0 (0xc0c576d0) locked @ kern/vfs_mount.c:1144
exclusive lockmgr vfslock r = 0 (0xc466c870) locked @ kern/vfs_mount.c:1247
exclusive lockmgr ufs r = 0 (0xc4f009c0) locked @ kern/vfs_mount.c:1212
Process 15078 (mkdir) thread 0xc6048690 (100257)
exclusive lockmgr nfs r = 0 (0xc64d25b8) locked @ nfsclient/nfs_vnops.c:937
exclusive lockmgr nfs r = 0 (0xc62d3460) locked @ nfsclient/nfs_node.c:169
Process 15029 (rw) thread 0xc4602460 (100245)
shared lockmgr ufs r = 0 (0xc45bbb18) locked @ kern/vfs_subr.c:2044
Process 15006 (rw) thread 0xc5275690 (100338)
shared lockmgr ufs r = 0 (0xc45bbb18) locked @ kern/vfs_subr.c:2044
Process 41314 (sshd) thread 0xc4d40af0 (100206)
exclusive sx so_rcv_sx r = 0 (0xc4819e4c) locked @ kern/uipc_sockbuf.c:148
Process 41312 (sshd) thread 0xc5829460 (100341)
exclusive sx so_rcv_sx r = 0 (0xc480182c) locked @ kern/uipc_sockbuf.c:148
Process 41311 (sshd) thread 0xc5a3c690 (100218)
exclusive sx so_rcv_sx r = 0 (0xc4d5c20c) locked @ kern/uipc_sockbuf.c:148
Process 29247 (sshd) thread 0xc4a76af0 (100161)
exclusive sx so_rcv_sx r = 0 (0xc5e6220c) locked @ kern/uipc_sockbuf.c:148
Process 930 (sshd) thread 0xc4684690 (100120)
exclusive sx so_rcv_sx r = 0 (0xc46919b4) locked @ kern/uipc_sockbuf.c:148
Process 686 (nfsd) thread 0xc46ebd20 (100102)
exclusive lockmgr ufs r = 0 (0xc65439c0) locked @ kern/vfs_subr.c:2044
Process 685 (nfsd) thread 0xc45beaf0 (100052)
exclusive lockmgr bufwait r = 0 (0xd8387438) locked @ nfsserver/nfs_serv.c:3888
exclusive lockmgr ufs r = 0 (0xc5b1e9c0) locked @ kern/vfs_subr.c:2044
Process 684 (nfsd) thread 0xc45f48c0 (100069)
exclusive lockmgr ufs r = 0 (0xc5eb6c70) locked @ kern/vfs_subr.c:2044
Process 683 (nfsd) thread 0xc46eaaf0 (100110)
exclusive lockmgr ufs r = 0 (0xc5f03dc8) locked @ kern/vfs_subr.c:2044
Process 609 (syslogd) thread 0xc4325d20 (100060)
exclusive sx user map r = 0 (0xc46abc84) locked @ vm/vm_map.c:3115
Process 21 (softdepflush) thread 0xc427b8c0 (100049)
exclusive lockmgr bufwait r = 0 (0xd8398f78) locked @ kern/vfs_bio.c:1796
exclusive lockmgr ufs r = 0 (0xc4a109c0) locked @ kern/vfs_subr.c:2044
shared lockmgr vfslock r = 0 (0xc466c2d0) locked @ kern/vfs_subr.c:370
db> show lockedvnods
Locked vnodes

0xc433dd70: tag ufs, type VDIR
    usecount 355, writecount 0, refcount 358 mountedhere 0
    flags (VV_ROOT)
    v_object 0xc144a174 ref 0 pages 1
     lock type ufs: EXCL by thread 0xc6d6c230 (pid 15403)
 with exclusive waiters pending
#0 0xc076fe20 at __lockmgr_args+0xb50
#1 0xc099729a at ffs_lock+0x8a
#2 0xc0aac2d5 at VOP_LOCK1_APV+0xa5
#3 0xc081461e at _vn_lock+0x5e
#4 0xc07fc08b at lookup+0xeb
#5 0xc07fd18b at namei+0x45b
#6 0xc080d42d at kern_accessat+0x8d
#7 0xc080d5d6 at kern_access+0x36
#8 0xc080d609 at access+0x29
#9 0xc0a9eab3 at syscall+0x2a3
#10 0xc0a832b0 at Xint0x80_syscall+0x20

        ino 2, on dev ad0s1a

0xc457e560: tag ufs, type VDIR
    usecount 1, writecount 0, refcount 4 mountedhere 0
    flags ()
    v_object 0xc144aaa8 ref 0 pages 1
     lock type ufs: EXCL by thread 0xc44e98c0 (pid 15401)
 with exclusive waiters pending
#0 0xc076fe20 at __lockmgr_args+0xb50
#1 0xc099729a at ffs_lock+0x8a
#2 0xc0aac2d5 at VOP_LOCK1_APV+0xa5
#3 0xc081461e at _vn_lock+0x5e
#4 0xc0808ea2 at vget+0xa2
#5 0xc07f6332 at cache_lookup+0x4c2
#6 0xc07f647a at vfs_cache_lookup+0xaa
#7 0xc0aad475 at VOP_LOOKUP_APV+0xe5
#8 0xc07fc52e at lookup+0x58e
#9 0xc07fd18b at namei+0x45b
#10 0xc0813fe9 at vn_open_cred+0x2c9
#11 0xc0814293 at vn_open+0x33
#12 0xc0812eff at kern_openat+0x10f
#13 0xc0813415 at kern_open+0x35
#14 0xc0813450 at open+0x30
#15 0xc0a9eab3 at syscall+0x2a3
#16 0xc0a832b0 at Xint0x80_syscall+0x20

        ino 5, on dev ad0s1a

0xc45bbac0: tag ufs, type VREG
    usecount 335, writecount 0, refcount 341 mountedhere 0
    flags ()
    v_object 0xc144a744 ref 333 pages 204
     lock type ufs: SHARED (count 2)
 with exclusive waiters pending
 with shared waiters pending
#0 0xc076f852 at __lockmgr_args+0x582
#1 0xc099729a at ffs_lock+0x8a
#2 0xc0aac2d5 at VOP_LOCK1_APV+0xa5
#3 0xc081461e at _vn_lock+0x5e
#4 0xc0808ea2 at vget+0xa2
#5 0xc09c83e0 at vnode_pager_lock+0x1b0
#6 0xc09afe4f at vm_fault+0x1df
#7 0xc0a9e718 at trap_pfault+0x118
#8 0xc0a9efe9 at trap+0x259
#9 0xc0a8324b at calltrap+0x6

        ino 1704, on dev ad0s1a

0xc4f00968: tag ufs, type VDIR
    usecount 1, writecount 0, refcount 1 mountedhere 0xc466c870
    flags ()
    v_object 0xc6aa5934 ref 0 pages 0
     lock type ufs: EXCL by thread 0xc5b61af0 (pid 15391)
#0 0xc076fe20 at __lockmgr_args+0xb50
#1 0xc099729a at ffs_lock+0x8a
#2 0xc0aac2d5 at VOP_LOCK1_APV+0xa5
#3 0xc081461e at _vn_lock+0x5e
#4 0xc0801a5f at dounmount+0x8f
#5 0xc0802479 at unmount+0x2e9
#6 0xc0a9eab3 at syscall+0x2a3
#7 0xc0a832b0 at Xint0x80_syscall+0x20

        ino 32899, on dev ad0s1a

0xc5b1e968: tag ufs, type VREG
    usecount 1, writecount 0, refcount 565 mountedhere 0
    flags ()
    v_object 0xc5fb6d14 ref 0 pages 4860
     lock type ufs: EXCL by thread 0xc45beaf0 (pid 685)
 with exclusive waiters pending
#0 0xc076fe20 at __lockmgr_args+0xb50
#1 0xc099729a at ffs_lock+0x8a
#2 0xc0aac2d5 at VOP_LOCK1_APV+0xa5
#3 0xc081461e at _vn_lock+0x5e
#4 0xc0808ea2 at vget+0xa2
#5 0xc07fb44d at vfs_hash_get+0xed
#6 0xc0991f79 at ffs_vget+0x49
#7 0xc09a16d7 at ufs_fhtovp+0x37
#8 0xc0991814 at ffs_fhtovp+0x44
#9 0xc093a5e1 at nfsrv_fhtovp+0xe1
#10 0xc092dceb at nfsrv_commit+0x25b
#11 0xc093be64 at nfssvc+0x964
#12 0xc0a9eab3 at syscall+0x2a3
#13 0xc0a832b0 at Xint0x80_syscall+0x20

        ino 117767, on dev ad0s1e

0xc5f03d70: tag ufs, type VREG
    usecount 1, writecount 0, refcount 1502 mountedhere 0
    flags ()
    v_object 0xc59b53e0 ref 0 pages 8804
     lock type ufs: EXCL by thread 0xc46eaaf0 (pid 683)
#0 0xc076fe20 at __lockmgr_args+0xb50
#1 0xc099729a at ffs_lock+0x8a
#2 0xc0aac2d5 at VOP_LOCK1_APV+0xa5
#3 0xc081461e at _vn_lock+0x5e
#4 0xc0808ea2 at vget+0xa2
#5 0xc07fb44d at vfs_hash_get+0xed
#6 0xc0991f79 at ffs_vget+0x49
#7 0xc09a16d7 at ufs_fhtovp+0x37
#8 0xc0991814 at ffs_fhtovp+0x44
#9 0xc093a5e1 at nfsrv_fhtovp+0xe1
#10 0xc092dceb at nfsrv_commit+0x25b
#11 0xc093be64 at nfssvc+0x964
#12 0xc0a9eab3 at syscall+0x2a3
#13 0xc0a832b0 at Xint0x80_syscall+0x20

        ino 117799, on dev ad0s1e

0xc4a10968: tag ufs, type VREG
    usecount 0, writecount 0, refcount 1 mountedhere 0
    flags (VI_DOINGINACT)
     lock type ufs: EXCL by thread 0xc427b8c0 (pid 21)
#0 0xc076fe20 at __lockmgr_args+0xb50
#1 0xc099729a at ffs_lock+0x8a
#2 0xc0aac2d5 at VOP_LOCK1_APV+0xa5
#3 0xc081461e at _vn_lock+0x5e
#4 0xc0808ea2 at vget+0xa2
#5 0xc07fb44d at vfs_hash_get+0xed
#6 0xc0991f79 at ffs_vget+0x49
#7 0xc0987b5d at handle_workitem_remove+0x3d
#8 0xc0988082 at process_worklist_item+0x1e2
#9 0xc098d795 at softdep_process_worklist+0x75
#10 0xc098dd05 at softdep_flush+0x315
#11 0xc07639f8 at fork_exit+0xb8
#12 0xc0a832c0 at fork_trampoline+0x8

        ino 118467, on dev ad0s1e

0xc5eb6c18: tag ufs, type VREG
    usecount 1, writecount 0, refcount 1557 mountedhere 0
    flags ()
    v_object 0xc601664c ref 0 pages 6220
     lock type ufs: EXCL by thread 0xc45f48c0 (pid 684)
#0 0xc076fe20 at __lockmgr_args+0xb50
#1 0xc099729a at ffs_lock+0x8a
#2 0xc0aac2d5 at VOP_LOCK1_APV+0xa5
#3 0xc081461e at _vn_lock+0x5e
#4 0xc0808ea2 at vget+0xa2
#5 0xc07fb44d at vfs_hash_get+0xed
#6 0xc0991f79 at ffs_vget+0x49
#7 0xc09a16d7 at ufs_fhtovp+0x37
#8 0xc0991814 at ffs_fhtovp+0x44
#9 0xc093a5e1 at nfsrv_fhtovp+0xe1
#10 0xc092dceb at nfsrv_commit+0x25b
#11 0xc093be64 at nfssvc+0x964
#12 0xc0a9eab3 at syscall+0x2a3
#13 0xc0a832b0 at Xint0x80_syscall+0x20

        ino 118539, on dev ad0s1e

0xc6543968: tag ufs, type VREG
    usecount 1, writecount 0, refcount 1375 mountedhere 0
    flags ()
    v_object 0xc672a83c ref 0 pages 5492
     lock type ufs: EXCL by thread 0xc46ebd20 (pid 686)
#0 0xc076fe20 at __lockmgr_args+0xb50
#1 0xc099729a at ffs_lock+0x8a
#2 0xc0aac2d5 at VOP_LOCK1_APV+0xa5
#3 0xc081461e at _vn_lock+0x5e
#4 0xc0808ea2 at vget+0xa2
#5 0xc07fb44d at vfs_hash_get+0xed
#6 0xc0991f79 at ffs_vget+0x49
#7 0xc09a16d7 at ufs_fhtovp+0x37
#8 0xc0991814 at ffs_fhtovp+0x44
#9 0xc093a5e1 at nfsrv_fhtovp+0xe1
#10 0xc092dceb at nfsrv_commit+0x25b
#11 0xc093be64 at nfssvc+0x964
#12 0xc0a9eab3 at syscall+0x2a3
#13 0xc0a832b0 at Xint0x80_syscall+0x20

        ino 119729, on dev ad0s1e

0xc6127d70: tag nfs, type VREG
    usecount 1, writecount 1, refcount 94 mountedhere 0
    flags (VI_DOOMED)
    v_object 0xc67cd07c ref 0 pages 840
     lock type nfs: EXCL by thread 0xc5b61af0 (pid 15391)
#0 0xc076fe20 at __lockmgr_args+0xb50
#1 0xc07f8b05 at vop_stdlock+0x65
#2 0xc0aac2d5 at VOP_LOCK1_APV+0xa5
#3 0xc081461e at _vn_lock+0x5e
#4 0xc080aa49 at vflush+0x149
#5 0xc091fffe at nfs_unmount+0x3e
#6 0xc0801e44 at dounmount+0x474
#7 0xc0802479 at unmount+0x2e9
#8 0xc0a9eab3 at syscall+0x2a3
#9 0xc0a832b0 at Xint0x80_syscall+0x20

--
Test scenario: nfs4.sh