10.1-BETA2 possible kernel memory leak in routing table

[Rumen Telbizov]

Submitted PR with details at
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=194078


On Wed, Oct 1, 2014 at 10:16 AM, Gleb Smirnoff <glebius at freebsd.org> wrote:

> 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.
>



-- 
Rumen Telbizov
Unix Systems Administrator <http://telbizov.com>