bombarded with LOR's with recent install

I just wiped a system last night to perform a fresh install
from the 11-CURRENT-amd64-20150223 disk1 CD. After the install,
and choosing the "reboot system", resulted in a LOR. I wasn't
able to capture the output. But I'm still plagued with LOR's.
They almost always follow the halt(8) command, and almost
always occur during the final stages of the boot. But aren't
always restricted to those events. The LOR's output seem
indicative of fs related issues. This system has *always*
worked w/o fail, and prior to this install, has never
indicated hardware issues.
Aside from the dmesg(8) attached, here are 2 of the examples.
NOTE the numbers, and files are not always the same, from
LOR to LOR;

lock order reversal:
 1st 0xfffff8000474f7c8 ufs (ufs) _at_ /usr/src/sys/kern/vfs_mount.c:1229
 2nd 0xfffff80004caf5f0 devfs (devfs) _at_ /usr/src/sys/ufs/ffs/ffs_vfsops.c:1375
KDB: stack backtrace:
db_trace_self_wrapper() at db_trace_self_wrapper+0x2b/frame 0xfffffe0120c27570
witness_checkorder() at witness_checkorder+0xe45/frame 0xfffffe0120c27600
__lockmgr_args() at __lockmgr_args+0xacf/frame 0xfffffe0120c27730
vop_stdlock() at vop_stdlock+0x3c/frame 0xfffffe0120c27750
VOP_LOCK1_APV() at VOP_LOCK1_APV+0xfc/frame 0xfffffe0120c27780
_vn_lock() at _vn_lock+0x8a/frame 0xfffffe0120c277f0
ffs_flushfiles() at ffs_flushfiles+0x113/frame 0xfffffe0120c27860
softdep_flushfiles() at softdep_flushfiles+0x273/frame 0xfffffe0120c278d0
ffs_unmount() at ffs_unmount+0x81/frame 0xfffffe0120c27930
dounmount() at dounmount+0x42c/frame 0xfffffe0120c279b0
sys_unmount() at sys_unmount+0x2ec/frame 0xfffffe0120c27ae0
amd64_syscall() at amd64_syscall+0x27f/frame 0xfffffe0120c27bf0
Xfast_syscall() at Xfast_syscall+0xfb/frame 0xfffffe0120c27bf0
--- syscall (22, FreeBSD ELF64, sys_unmount), rip = 0x8008990ea, rsp =
0x7ffffff
fe348, rbp = 0x7fffffffe460 ---

lock order reversal:
 1st 0xfffffe00f749ddc8 bufwait (bufwait) _at_ /usr/src/sys/kern/vfs_bio.c:3097
 2nd 0xfffff80004f28c00 dirhash (dirhash) _at_
/usr/src/sys/ufs/ufs/ufs_dirhash.c:2
85
KDB: stack backtrace:
db_trace_self_wrapper() at db_trace_self_wrapper+0x2b/frame 0xfffffe0120c6d470
witness_checkorder() at witness_checkorder+0xe45/frame 0xfffffe0120c6d500
_sx_xlock() at _sx_xlock+0x75/frame 0xfffffe0120c6d540
ufsdirhash_add() at ufsdirhash_add+0x3a/frame 0xfffffe0120c6d580
ufs_direnter() at ufs_direnter+0x641/frame 0xfffffe0120c6d640
ufs_rename() at ufs_rename+0xffe/frame 0xfffffe0120c6d830
VOP_RENAME_APV() at VOP_RENAME_APV+0xfc/frame 0xfffffe0120c6d860
kern_renameat() at kern_renameat+0x4bc/frame 0xfffffe0120c6dae0
amd64_syscall() at amd64_syscall+0x27f/frame 0xfffffe0120c6dbf0
Xfast_syscall() at Xfast_syscall+0xfb/frame 0xfffffe0120c6dbf0
--- syscall (128, FreeBSD ELF64, sys_rename), rip = 0x801ca4d2a, rsp =
0x7ffffff
fded8, rbp = 0x7fffffffdee0 ---

and another

lock order reversal:
 1st 0xfffff800048979a0 ufs (ufs) _at_ /usr/src/sys/kern/vfs_subr.c:2176
 2nd 0xfffffe00f72442e0 bufwait (bufwait) _at_
/usr/src/sys/ufs/ffs/ffs_vnops.c:263
 3rd 0xfffff80004871068 ufs (ufs) _at_ /usr/src/sys/kern/vfs_subr.c:2176
KDB: stack backtrace:
db_trace_self_wrapper() at db_trace_self_wrapper+0x2b/frame 0xfffffe0120ae9e20
witness_checkorder() at witness_checkorder+0xe45/frame 0xfffffe0120ae9eb0
__lockmgr_args() at __lockmgr_args+0xacf/frame 0xfffffe0120ae9fe0
ffs_lock() at ffs_lock+0x84/frame 0xfffffe0120aea030
VOP_LOCK1_APV() at VOP_LOCK1_APV+0xfc/frame 0xfffffe0120aea060
_vn_lock() at _vn_lock+0x8a/frame 0xfffffe0120aea0d0
vget() at vget+0x67/frame 0xfffffe0120aea110
vfs_hash_get() at vfs_hash_get+0xdc/frame 0xfffffe0120aea160
ffs_vgetf() at ffs_vgetf+0x40/frame 0xfffffe0120aea1f0
softdep_sync_buf() at softdep_sync_buf+0xa90/frame 0xfffffe0120aea2d0
ffs_syncvnode() at ffs_syncvnode+0x259/frame 0xfffffe0120aea350
ffs_truncate() at ffs_truncate+0x671/frame 0xfffffe0120aea530
ufs_direnter() at ufs_direnter+0x7d1/frame 0xfffffe0120aea5f0
ufs_makeinode() at ufs_makeinode+0x5bf/frame 0xfffffe0120aea7b0
ufs_create() at ufs_create+0x2d/frame 0xfffffe0120aea7d0
VOP_CREATE_APV() at VOP_CREATE_APV+0xf1/frame 0xfffffe0120aea800
vn_open_cred() at vn_open_cred+0x2c6/frame 0xfffffe0120aea960
kern_openat() at kern_openat+0x257/frame 0xfffffe0120aeaae0
amd64_syscall() at amd64_syscall+0x27f/frame 0xfffffe0120aeabf0
Xfast_syscall() at Xfast_syscall+0xfb/frame 0xfffffe0120aeabf0
--- syscall (499, FreeBSD ELF64, sys_openat), rip = 0x800b4c79a, rsp =
0x7ffffff
fd598, rbp = 0x7fffffffd670 ---

I *really* need to build/install world/kernel on this
box. But am fairly confident that there will be issues
as I LOR's to occur during the process.

Any insight || help with this, greatly appreciated.

Thanks!

--Chris

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