Date: Mon, 3 May 2004 16:11:23 -0700 From: Kris Kennaway <kris@obsecurity.org> To: John Uhlig <juhlig@parc.com> Cc: Kris Kennaway <kris@obsecurity.org> Subject: Re: kmem_malloc crashes running FreeBSD 5.2.1-RELEASE-p5 Message-ID: <20040503231123.GA50427@xor.obsecurity.org> In-Reply-To: <4096630F.9080500@parc.com> References: <409024D6.7090800@parc.com> <20040429000158.GA61693@xor.obsecurity.org> <B6D33856-9BBE-11D8-9E08-000A95C893E4@lassitu.de> <4096630F.9080500@parc.com>
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--C7zPtVaVf+AK4Oqc Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Mon, May 03, 2004 at 08:19:43AM -0700, John Uhlig wrote: >=20 > Well, Don Bowman was very helpful in suggesting some kernel parameters.= =20 > Unfortunately, they > did not work for us. If we had the time to experiment with more=20 > settings, perhaps we would have > been able to find the right combination. Since we do not have that time= =20 > due to our schedule I was > forced to "fix" the problem by setting "hw.physmem=3D2G" in=20 > /boot/loader.conf (thanks again to Don). > It ran for over 8 hours while I ran multiple scripts copying data from=20 > multiple systems to it and > while continuously running the /etc/periodic/security scripts on it. All= =20 > previous tests crashed the > server (usually within 20 minutes). >=20 > I am hoping that this issue will be resolved by the developers in the=20 > future as we would like to be > able to use the full complement of available memory (4GB). I'm pretty sure it's just a matter of the right tuning. All I needed to do was to add this on my heavily loaded 4GB machine: options VM_KMEM_SIZE_MAX=3D419430400 #400MB Kris --C7zPtVaVf+AK4Oqc Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.4 (FreeBSD) iD8DBQFAltGaWry0BWjoQKURAp95AKC1x8XFMqNQ4bnczhJz5zmbmvpA2wCg2OX/ YJR0556OisNcZNB5QcAwQyg= =05SC -----END PGP SIGNATURE----- --C7zPtVaVf+AK4Oqc--
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