From owner-freebsd-hackers Thu Jan 26 02:59:29 1995 Return-Path: hackers-owner Received: (from root@localhost) by freefall.cdrom.com (8.6.9/8.6.6) id CAA21833 for hackers-outgoing; Thu, 26 Jan 1995 02:59:29 -0800 Received: from minnow.render.com (render.demon.co.uk [158.152.30.118]) by freefall.cdrom.com (8.6.9/8.6.6) with ESMTP id CAA21823 for ; Thu, 26 Jan 1995 02:59:17 -0800 Received: (from dfr@localhost) by minnow.render.com (8.6.9/8.6.9) id KAA25761; Thu, 26 Jan 1995 10:38:25 GMT Date: Thu, 26 Jan 1995 10:38:18 +0000 (GMT) From: Doug Rabson To: Julian Elischer cc: hackers@FreeBSD.org Subject: Re: Strange errors with AHA1542B In-Reply-To: Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: hackers-owner@FreeBSD.org Precedence: bulk On Wed, 25 Jan 1995, Julian Elischer wrote: > > > > I just started noticing errors like this appearing on my console: > > > > blkno=3831389276 bcount=1949779968 flags=0x100010 > these figures are rubish > something has scribbled over something else.... > > Debugger("") called. > > aha0: aha_scsi_cmd, more than 17 DMA segs > yep, 1949779968 bytes is more than 17 x 4k pages.... > > > > sd1: oops not queue > > > > > Is this a known problem? Is it serious? > no and yes... > > (suspect H/W (cache?)) > does it happen after a reboot? > with a new kernel? This is with a FreeBSD-2.0-RELEASE kernel on a 486DX33 motherboard which has been happily running FreeBSD since it was called 386BSD-0.2.4. It happens very infrequently and does not *appear* to cause any problems. -- Doug Rabson, RenderMorphics Ltd. Mail: dfr@render.com Phone: +44 71 251 4411 FAX: +44 71 251 0939