10.1-BETA2 possible kernel memory leak in routing table

[Gleb Smirnoff]

On Wed, Oct 01, 2014 at 11:42:15AM -0400, Mike Tancsa wrote:
M> On 10/1/2014 9:51 AM, Gleb Smirnoff wrote:
M> > On Tue, Sep 30, 2014 at 04:56:00PM -0700, Rumen Telbizov wrote:
M> > R> Brian Somers and I are currently looking into the source of PF in latest
M> > R> 10-STABLE and trying to figure out what is going on. We were able to
M> > R> replicate this problem on a 11-CURRENT (Sep 12th) machine as well. A simple
M> > R> PF ruleset with 1 rule and 1 table. Every few reloads of the firewall
M> > R> and vmstat
M> > R> -m | grep routetbl shows increased memory usage.
M> >
M> > I plugged the easy leak, but there is also a hard one. Actually, the
M> > entire pf_table.c needs a good shake. Right now I am out of time for this.
M> 
M> 	Is that easy fix
M> 
M> http://lists.freebsd.org/pipermail/svn-src-head/2014-October/063178.html

Yes, it seems the leak slowed down.

M> Also, is there any work around to this ?  I tried a simple set of pf 
M> rules with no tables, hoping that was the cause of it, but memory grows 
M> with each pf reload.

No workaround available. Can you please file a PR for that? Once I have
time, I will work on this.

-- 
Totus tuus, Glebius.