From owner-freebsd-hackers Mon Jul 28 16:14:43 1997 Return-Path: Received: (from root@localhost) by hub.freebsd.org (8.8.5/8.8.5) id QAA10895 for hackers-outgoing; Mon, 28 Jul 1997 16:14:43 -0700 (PDT) Received: from freebie.lemis.com (gregl1.lnk.telstra.net [139.130.136.133]) by hub.freebsd.org (8.8.5/8.8.5) with ESMTP id QAA10875; Mon, 28 Jul 1997 16:14:23 -0700 (PDT) Received: (grog@localhost) by freebie.lemis.com (8.8.6/8.6.12) id IAA02459; Tue, 29 Jul 1997 08:44:23 +0930 (CST) From: grog@FreeBSD.ORG Message-Id: <199707282314.IAA02459@freebie.lemis.com> Subject: Re: MAX physical memory for FreeBSD ? In-Reply-To: from Jim Dixon at "Jul 28, 97 09:14:33 pm" To: jdd@vbc.net (Jim Dixon) Date: Tue, 29 Jul 1997 08:44:23 +0930 (CST) Cc: tom@sdf.com, hackers@FreeBSD.ORG Organisation: LEMIS, PO Box 460, Echunga SA 5153, Australia Phone: +61-8-8388-8250 Fax: +61-8-8388-8250 Mobile: +61-41-739-7062 WWW-Home-Page: http://www.lemis.com/~grog X-Mailer: ELM [version 2.4ME+ PL32 (25)] MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: owner-freebsd-hackers@FreeBSD.ORG X-Loop: FreeBSD.org Precedence: bulk Jim Dixon writes: > On Mon, 28 Jul 1997, Tom Samplonius wrote: > >>> panic: bouce memory out of range >> >> Do you have bounce buffers in your kernel? You probably shouldn't, >> unless you have ISA devices that require DMA. But who would use ISA >> devices in a large server? > > The only "ISA" devices are a floppy drive and an IDE drive. And, > yes, bounce buffers are enabled. I've just completed an upgrade of my 3.0-current system from mid-December 1996 to now. I'm running an aha and an ahc, have BOUNCE_BUFFERS enabled, yet I get a lot of messages like: Jul 28 22:44:34 freebie /kernel: aha0: DMA beyond end Of ISA: 0x3fcad14 Jul 28 22:44:42 freebie /kernel: aha0: DMA beyond end Of ISA: 0x227bd14 Jul 28 22:44:42 freebie /kernel: aha0: DMA beyond end Of ISA: 0x3cc9d14 I haven't looked at the code yet, but it seems that there's something funny here. Greg