ZFS LORs: syncer vs. zfs and devfs vs. zfs

I got the attached ZFS LORs when building ports on a new install of 
9.0-CURRENT-20100610-JPSNAP. I know there have been some ZFS checkins in the 
last few days so I don't know if they've already been fixed?

-- 
Bruce



lock order reversal:
 1st 0xffffff000a846458 zfs (zfs) _at_ /usr/src/sys/kern/vfs_mount.c:1201
 2nd 0xffffff000a846638 devfs (devfs) _at_ /usr/src/sys/ufs/ffs/ffs_vfsops.c:1250
KDB: stack backtrace:
db_trace_self_wrapper() at db_trace_self_wrapper+0x2a
_witness_debugger() at _witness_debugger+0x2e
witness_checkorder() at witness_checkorder+0x81e
__lockmgr_args() at __lockmgr_args+0xd11
vop_stdlock() at vop_stdlock+0x39
VOP_LOCK1_APV() at VOP_LOCK1_APV+0x9b
_vn_lock() at _vn_lock+0x47
ffs_flushfiles() at ffs_flushfiles+0xb5
ffs_unmount() at ffs_unmount+0x70
dounmount() at dounmount+0x2e6
unmount() at unmount+0x27e
syscallenter() at syscallenter+0xf0
syscall() at syscall+0x4c
Xfast_syscall() at Xfast_syscall+0xe1
--- syscall (22, FreeBSD ELF64, unmount), rip = 0x8006a23ec, rsp = 0x7fffffffe3c8, rbp = 0x800c09bb0 ---

lock order reversal:
 1st 0xffffff000a857bd8 syncer (syncer) _at_ /usr/src/sys/kern/vfs_subr.c:1713
 2nd 0xffffff0127b389f8 zfs (zfs) _at_ /usr/src/sys/modules/zfs/../../cddl/contrib/opensolaris/uts/common/fs/zfs/zfs_znode.c:152
KDB: stack backtrace:
db_trace_self_wrapper() at db_trace_self_wrapper+0x2a
_witness_debugger() at _witness_debugger+0x2e
witness_checkorder() at witness_checkorder+0x81e
__lockmgr_args() at __lockmgr_args+0xd11
vop_stdlock() at vop_stdlock+0x39
VOP_LOCK1_APV() at VOP_LOCK1_APV+0x9b
_vn_lock() at _vn_lock+0x47
zfs_znode_cache_constructor() at zfs_znode_cache_constructor+0x57
zfs_znode_alloc() at zfs_znode_alloc+0x39
zfs_zget() at zfs_zget+0x2a7
zfs_get_data() at zfs_get_data+0x4d
zil_commit() at zil_commit+0x532
zfs_sync() at zfs_sync+0xa6
sync_fsync() at sync_fsync+0x13a
sync_vnode() at sync_vnode+0x157
sched_sync() at sched_sync+0x1d1
fork_exit() at fork_exit+0x12a
fork_trampoline() at fork_trampoline+0xe
--- trap 0, rip = 0, rsp = 0xffffff8323b0ad30, rbp = 0 ---