witness warning in -CURRENT

Hi,

I've installed -CURRENT after bad experience with latest
-STABLE kernels (see my posts to stable_at_freebsd.org).

It seems, there are no problems so far, but one thing
I would like to mention is that the -CURRENT kernel
starts with a witness warning:

Jul  9 18:38:59 klotz kernel: WARNING: attempt to
net_add_domain(netgraph) after domainfinalize()
Jul  9 18:38:59 klotz kernel: taskqueue_drain with the following
non-sleepable locks held:
Jul  9 18:38:59 klotz kernel: exclusive sleep mutex xl0 (network driver)
r = 0 (0xc1efb0a4) locked _at_ /usr/src/sys/
pci/if_xl.c:2796
Jul  9 18:38:59 klotz kernel: KDB: stack backtrace:
Jul  9 18:38:59 klotz kernel: ipfw2 (+ipv6) initialized, divert
loadable, rule-based forwarding disabled, default to deny, logging disabled
Jul  9 18:38:59 klotz kernel:
kdb_backtrace(c0a4a58c,db0248c4,1,246,c1efb0c8) at kdb_backtrace+0x2e
Jul  9 18:38:59 klotz kernel:
witness_warn(5,0,c0935ed1,c20b4c78,c06d3b5b) at witness_warn+0x1d3
Jul  9 18:38:59 klotz kernel:
taskqueue_drain(c1ecc380,c1efb0c8,c0949235,cc7,c1ef5400) at
taskqueue_drain+0x2b
Jul  9 18:38:59 klotz kernel: xl_stop(c1ef9000,1,c0949235,af9,0) at
xl_stop+0x57
Jul  9 18:38:59 klotz kernel:
xl_init_locked(c1ef9000,0,c0949235,aec,c1ef5400) at xl_init_locked+0x43
Jul  9 18:38:59 klotz kernel:
xl_init(c1ef9000,c06d2f83,c0a03e80,8020690c,c203a400) at xl_init+0x3d
Jul  9 18:38:59 klotz kernel:
ether_ioctl(c1ef5400,8020690c,c203a400,c0936552,0) at ether_ioctl+0x80
Jul  9 18:38:59 klotz kernel: xl_ioctl(c1ef5400,8020690c,c203a400,5,0)
at xl_ioctl+0x326
Jul  9 18:38:59 klotz kernel:
in6_ifinit(c1ef5400,c203a400,db024b00,1,db0249ec) at in6_ifinit+0xdd
Jul  9 18:38:59 klotz kernel:
in6_update_ifa(c1ef5400,db024af0,0,0,c0999ac0) at in6_update_ifa+0x570
Jul  9 18:38:59 klotz kernel:
in6_ifattach_linklocal(c1ef5400,0,206,c0a03e80,c09a57c8) at
in6_ifattach_linklocal+0x10c
Jul  9 18:38:59 klotz kernel: in6_ifattach(c1ef5400,0,0,0,0) at
in6_ifattach+0xdc
Jul  9 18:38:59 klotz kernel: in6_if_up(c1ef5400,c1dba6a0) at in6_if_up+0x1b
Jul  9 18:38:59 klotz kernel: if_route(c1ef5400,1,0,db024c3c,c0726c12)
at if_route+0x67
Jul  9 18:38:59 klotz kernel:
if_up(c1ef5400,db024c1c,c069d50a,c0a4b260,1) at if_up+0x21
Jul  9 18:38:59 klotz kernel:
ifhwioctl(80206910,c1ef5400,c20ea180,c20b4c00,c09fc9e0) at ifhwioctl+0x2a2
Jul  9 18:38:59 klotz kernel:
ifioctl(c210342c,80206910,c20ea180,c20b4c00,1) at ifioctl+0xe7
Jul  9 18:38:59 klotz kernel:
soo_ioctl(c2088a20,80206910,c20ea180,c2162700,c20b4c00) at soo_ioctl+0x3ef
Jul  9 18:38:59 klotz kernel: ioctl(c20b4c00,db024d04,c,421,3) at
ioctl+0x45d
Jul  9 18:38:59 klotz kernel: syscall(3b,3b,3b,bfbfdf30,80206910) at
syscall+0x2c0
Jul  9 18:38:59 klotz kernel: Xint0x80_syscall() at Xint0x80_syscall+0x1f
Jul  9 18:38:59 klotz kernel: --- syscall (54, FreeBSD ELF32, ioctl),
eip = 0x2829054f, esp = 0xbfbfdecc, ebp = 0xbfbfdef8 ---

It also halts with a witness warning, but it's not being logged, so
I will post it later.

Martin