From owner-freebsd-sparc64@FreeBSD.ORG Fri Jun 10 15:45:36 2005 Return-Path: X-Original-To: sparc64@FreeBSD.org Delivered-To: freebsd-sparc64@FreeBSD.ORG Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 97CBA16A41C for ; Fri, 10 Jun 2005 15:45:36 +0000 (GMT) (envelope-from hrs@FreeBSD.org) Received: from mail.allbsd.org (vlsi00.si.noda.tus.ac.jp [133.31.130.32]) by mx1.FreeBSD.org (Postfix) with ESMTP id 15CBB43D48 for ; Fri, 10 Jun 2005 15:45:35 +0000 (GMT) (envelope-from hrs@FreeBSD.org) Received: from delta.allbsd.org (p19186-adsau12honb8-acca.tokyo.ocn.ne.jp [221.113.175.186]) (authenticated bits=128) by mail.allbsd.org (8.13.1/8.13.1) with ESMTP id j5AFjW0A084194 for ; Sat, 11 Jun 2005 00:45:33 +0900 (JST) (envelope-from hrs@FreeBSD.org) Received: from localhost (alph.allbsd.org [192.168.0.10]) by delta.allbsd.org (8.13.1/8.13.1) with ESMTP id j5AFjH0L071245 for ; Sat, 11 Jun 2005 00:45:17 +0900 (JST) (envelope-from hrs@FreeBSD.org) Date: Sat, 11 Jun 2005 00:44:35 +0900 (JST) Message-Id: <20050611.004435.59726356.hrs@allbsd.org> To: sparc64@FreeBSD.org From: Hiroki Sato In-Reply-To: <20050606132756.X16994@carver.gumbysoft.com> References: <429A7B4D.3080102@samsco.org> <20050607.015510.21897573.hrs@allbsd.org> <20050606132756.X16994@carver.gumbysoft.com> X-PGPkey-fingerprint: BDB3 443F A5DD B3D0 A530 FFD7 4F2C D3D8 2793 CF2D X-Mailer: Mew version 4.2 on Emacs 21.3 / Mule 5.0 (SAKAKI) Mime-Version: 1.0 Content-Type: Multipart/Signed; protocol="application/pgp-signature"; micalg=pgp-sha1; boundary="--Security_Multipart(Sat_Jun_11_00_44_35_2005_636)--" Content-Transfer-Encoding: 7bit X-Virus-Scanned: ClamAV 0.83/922/Fri Jun 10 22:58:19 2005 on gatekeeper.allbsd.org X-Virus-Status: Clean Cc: Subject: Re: E4500 with 24GB RAM X-BeenThere: freebsd-sparc64@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Porting FreeBSD to the Sparc List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 10 Jun 2005 15:45:36 -0000 ----Security_Multipart(Sat_Jun_11_00_44_35_2005_636)-- Content-Type: Text/Plain; charset=us-ascii Content-Transfer-Encoding: 7bit Doug White wrote in <20050606132756.X16994@carver.gumbysoft.com>: dw> Since the panic is in a KASSERT thats why it only pops up under dw> INVARIANTS. However the bus_dma tags specify that hme can only handle 32 dw> bit addresses so it should be using a bounce buffer. I'm guessing that dw> bus_dma needs to be taught about this limitation and use bounce buffers dw> for the IOMMU on >16GB systems. dw> dw> Someone should also research this value a bit more ... I wonder if its dw> from some older system (E450?), and newer machines have larger limits. I dw> would hope they'd build E4500s with IOMMUs that can address all of dw> physical memory. Hmmm, I notice the box sometimes hangs up with <16GB RAM under moderate network load just after "hme0: invalid packet size xxxx; dropping" is displayed. I tried 16, 12, 8, and 4GB. Another E4500 with 5GB RAM seems OK, though. Is there anyone interested in investigating? I can provide remote access (serial console available) to this box. -- | Hiroki SATO ----Security_Multipart(Sat_Jun_11_00_44_35_2005_636)-- Content-Type: application/pgp-signature Content-Transfer-Encoding: 7bit -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.0 (FreeBSD) iD8DBQBCqbVjTyzT2CeTzy0RAn/QAJ4zjt/wMbetf7GbTCZjDOoDM7wBTACfQ9EQ E7gD/1tS9XbJtj54W7qZv+I= =ZlRK -----END PGP SIGNATURE----- ----Security_Multipart(Sat_Jun_11_00_44_35_2005_636)----