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Date:      Tue, 10 Nov 2015 17:33:26 -0500
From:      Shawn Webb <shawn.webb@hardenedbsd.org>
To:        NGie Cooper <yaneurabeya@gmail.com>
Cc:        Kristof Provost <kp@freebsd.org>, FreeBSD Current <freebsd-current@freebsd.org>
Subject:   Re: pf NAT and VNET Jails
Message-ID:  <20151110223326.GB55345@mutt-hardenedbsd>
In-Reply-To: <CAGHfRMBSAuz823rVC_BVsvucpaaxMocM1=-aG%2BXCTebXpJNO4g@mail.gmail.com>
References:  <CAExMvs=jVsASLyiqU9nTpir0Hy_s_DfChgf4XKeGWv-8yojNBw@mail.gmail.com> <13324720.omGDCH0sVj@hbsd-dev-laptop> <D8AAC66A-ED1D-4A6C-9CCF-447CA788073A@FreeBSD.org> <5815854.WJiA8b3P58@hbsd-dev-laptop> <20151110024701.GA2694@mutt-hardenedbsd> <20151110212805.GB13268@vega.codepro.be> <CAGHfRMBSAuz823rVC_BVsvucpaaxMocM1=-aG%2BXCTebXpJNO4g@mail.gmail.com>

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On Tue, Nov 10, 2015 at 01:45:21PM -0800, NGie Cooper wrote:
> On Tue, Nov 10, 2015 at 1:28 PM, Kristof Provost <kp@freebsd.org> wrote:
> > On 2015-11-09 21:47:01 (-0500), Shawn Webb <shawn.webb@hardenedbsd.org>=
 wrote:
> >> I found the problem: it seems that the new Intel Haswell graphics
> >> support (which I've been running with) is at odds somehow with pf NAT.
> >> Removing Haswell graphics support means working pf NAT.
> >>
> > That's ... very strange.
> >
> > I've built the drm-i915-update-38 branch of http:////github.com/freebsd=
/freebsd-base-graphics.git,
> > but still haven't managed to reproduce the problem.
> > It is if course entirely possible that it would only manifest if the
> > haswell graphics are actually in use. In that case there's little I can
> > do as I don't have haswell hardware I could test on.
>=20
> 1. Add memguard(9) support to kernel.
> 2. Set the descriptions for the zones (as noted in the manpage) to
> catch panics when either driver tries to touch eachothers' space.
> Cheers,
> -NGie

I think I might've been between some major pf commits or had some sort
of stale file. I updated to latest HEAD with the new haswell stuff
merged in and all is well.

Thanks for the help in troubleshooting this. I'll keep an eye on it.

Thanks,

--=20
Shawn Webb
HardenedBSD

GPG Key ID:          0x6A84658F52456EEE
GPG Key Fingerprint: 2ABA B6BD EF6A F486 BE89  3D9E 6A84 658F 5245 6EEE

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