Date: Sun, 7 Oct 2012 10:43:31 -0700 From: David Wolfskill <david@catwhisker.org> To: Garrett Cooper <yanegomi@gmail.com> Cc: current@freebsd.org Subject: Re: Message "in_cksum_skip: out of data by ...." Message-ID: <20121007174331.GA2583@albert.catwhisker.org> In-Reply-To: <CAGH67wRstg4yLOnwiVyGAca=5kbL4o9jVjkbdx%2BvC0t0tzbzAA@mail.gmail.com> References: <20121007151128.GL23688@albert.catwhisker.org> <5071AAF6.9020009@protected-networks.net> <CAGH67wRstg4yLOnwiVyGAca=5kbL4o9jVjkbdx%2BvC0t0tzbzAA@mail.gmail.com>
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On Sun, Oct 07, 2012 at 10:03:04AM -0700, Garrett Cooper wrote:
> ...
> Maybe these revisions had something to do with it... (r241245 is
> more likely)?
>=20
> ------------------------------------------------------------------------
> r241245 | glebius | 2012-10-06 03:02:11 -0700 (Sat, 06 Oct 2012) | 19 lin=
es
>=20
> A step in resolving mess with byte ordering for AF_INET. After this cha=
nge:
> ...=20
> ------------------------------------------------------------------------
> r241244 | glebius | 2012-10-06 00:06:57 -0700 (Sat, 06 Oct 2012) | 5 lines
>=20
> The pfil(9) layer guarantees us presence of the protocol header,
> so remove extra check, that is always false.
> ...
=20
> Did you rebuild all of your modules, and (for David) are you
> running any firmware blobs with your wireless NIC?
Yes; when I update, my changes from the process in src/UPDATING
generally augment what's there (e.g., to clear /usr/include &
/usr/share/man before the make installworld).
And the NIC that's in use (at home -- and most other places) on the
laptop is iwn(4), so yes, there is a firmware blob:
4 1 0xc138a000 54e38 iwn5000fw.ko
(Well, that particular line is from kldstat when it's running stable/9;
I just checked the head slice, and the blob had been rebuilt (based on
mtime), and has contents different from the contents in stable/9:
g1-227(9.1-P)[3] md5 /{,S4/}boot/kernel/iwn5000fw.ko
MD5 (/boot/kernel/iwn5000fw.ko) =3D 8f98e8f28c70fe801c73aec4f717973f
MD5 (/S4/boot/kernel/iwn5000fw.ko) =3D a0150e03bfd307595ab37b0924252844
g1-227(9.1-P)[4] ls -lT !$
ls -lT /{,S4/}boot/kernel/iwn5000fw.ko
-r-xr-xr-x 1 root wheel 345868 Oct 7 07:48:46 2012 /S4/boot/kernel/iwn5=
000fw.ko
-r-xr-xr-x 1 root wheel 344416 Oct 7 04:51:11 2012 /boot/kernel/iwn5000=
fw.ko
g1-227(9.1-P)[5]=20
FWIW.)
As noted, the message does not appear to be associated with (other)
unwanted behavior, so I wouldn't consider this of earth-shattering
importance. It just seemed rather odd, and I got to wondering if
the developer who committed the change had intended this result.
And if said result was actually of use to anyone. :-}
Peace,
david
--=20
David H. Wolfskill david@catwhisker.org
Depriving a girl or boy of an opportunity for education is evil.
See http://www.catwhisker.org/~david/publickey.gpg for my public key.
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