seeing pf: state key linking mismatch! with pf on up to date current but not on FreeBSD 7.4-STABLE

[Matt]

On 07/03/11 06:27, eculp wrote:
> Something is strange with PF.  I get the above error using pf on 
> current but not on FreeBSD stable.  The pf configuration hasn't 
> changed for a couple of years on either and they are the same except 
> for hardware names.
>
> The two machines are:
> 9.0-CURRENT FreeBSD 9.0-CURRENT #247: Wed Jun 29 04:49:16 CDT 2011
> 7.4-STABLE FreeBSD 7.4-STABLE #1228: Sat Jun 25 04:42:55 CDT 2011
>
> Anyone else seeing this?
>
> Thanks,
>
> ed
> _______________________________________________
>
I am also seeing this, especially when a website/browser/tab is closed 
but the remote site is still sending data I think.

I am using the same basic pf.conf I have used for client machines for a 
while, but there is not much other than pf options and allowing traffic 
out (modulate state for tcp, keep state for everything else). I do have 
scrub, and antispoof rules for the interfaces, as well as a block log 
all at the top.

For now, like i said, I've only seen the state key mismatches with web 
traffic. Also, synproxy state seems to hang all traffic.

Matt