Shawn, I have the same problem on a Lenovo Y40 and a few other systems with 
that interface. To work around it, I've done:

ifconfig re0 down 
ifconfig re0 -tso
ifconfig re0 up ( and give it a go 15 seconds ) and dhclient should do it's 

The only way I've been able to get -tso and DHCP together at boot is to place 
the re0 in a lagg group.

Hope that helps,

"Remember - no matter where you go, there you are."
- Buckaroo Banzai

> On Dec 9, 2014, at 8:36 AM, Shawn Webb <> wrote:
> Hey FreeBSD Peeps,
> I just got a new laptop (Lenovo Y50-70) that has a Realtek RTL8111/8168B
> NIC in it. When running `dhclient re0`, I get a message on the console from
> the kernel:
> Memory modified after free 0xfffff8001bd85800(2048) val=ffffffff @
> 0xfffff8001bd85800
> re0 fails to grab an IP via DHCP. And if I set it statically, I get 100%
> packet drops. Nothing comes in and nothing goes out.
> Thanks,
> Shawn
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