From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S263229AbTDYOR3 (ORCPT ); Fri, 25 Apr 2003 10:17:29 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S263230AbTDYOR3 (ORCPT ); Fri, 25 Apr 2003 10:17:29 -0400 Received: from node-d-1ea6.a2000.nl ([62.195.30.166]:8177 "EHLO laptop.fenrus.com") by vger.kernel.org with ESMTP id S263229AbTDYOR2 (ORCPT ); Fri, 25 Apr 2003 10:17:28 -0400 Subject: [Fwd: RE: cciss patches for 2.4.21-rc1, 4 of 4] From: Arjan van de Ven Reply-To: arjanv@redhat.com To: Alan Cox Cc: Cameron@laptop.fenrus.com, Steve , Linux Kernel Mailing List Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="=-jcN+22wL4fBiHvRlOXHE" Organization: Red Hat, Inc. Message-Id: <1051280955.1391.21.camel@laptop.fenrus.com> Mime-Version: 1.0 X-Mailer: Ximian Evolution 1.2.4 (1.2.4-2) Date: 25 Apr 2003 16:29:15 +0200 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org --=-jcN+22wL4fBiHvRlOXHE Content-Type: text/plain Content-Transfer-Encoding: quoted-printable -----Forwarded Message----- > From: Alan Cox > To: "Miller, Mike (OS Dev)" > Cc: "Cameron, Steve" , Linux Kernel Mailing List > Subject: RE: cciss patches for 2.4.21-rc1, 4 of 4 > Date: 25 Apr 2003 14:09:53 +0100 >=20 > On Gwe, 2003-04-25 at 14:48, Miller, Mike (OS Dev) wrote: > > I haven't seen any issues (yet) on ia64. I'm running with 5GB RAM. >=20 > That doesn't make it correct. This same problem occurs in other drivers > and the usual trick is to set the pci mask to 32bit, allocate those > command buffers ready, then flip back to 64bit. Just be sure one thread > doesn't change it to 64bit while another is allocating commands. The > reverse is fine since an accidental odd bounce is no big deal Alan, except that pci_alloc_consistent is guaranteed to return a 32 bit address what you're thinking about is the mapping interface instead. --=-jcN+22wL4fBiHvRlOXHE Content-Type: application/pgp-signature; name=signature.asc Content-Description: This is a digitally signed message part -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.1 (GNU/Linux) iD8DBQA+qUY7xULwo51rQBIRAjPDAJ0fUZDsIcgJucWuOHOIgdLkJuq0eQCfYvt5 aa8KtTZGqHmbpLzUZvZXoqQ= =TFZk -----END PGP SIGNATURE----- --=-jcN+22wL4fBiHvRlOXHE--