From owner-freebsd-hackers Mon Sep 22 15:20:53 1997 Return-Path: Received: (from root@localhost) by hub.freebsd.org (8.8.7/8.8.7) id PAA25291 for hackers-outgoing; Mon, 22 Sep 1997 15:20:53 -0700 (PDT) Received: from sax.sax.de (sax.sax.de [193.175.26.33]) by hub.freebsd.org (8.8.7/8.8.7) with SMTP id PAA25284 for ; Mon, 22 Sep 1997 15:20:48 -0700 (PDT) Received: (from uucp@localhost) by sax.sax.de (8.6.12/8.6.12-s1) with UUCP id AAA14074; Tue, 23 Sep 1997 00:20:47 +0200 Received: (from j@localhost) by uriah.heep.sax.de (8.8.7/8.8.5) id AAA25520; Tue, 23 Sep 1997 00:05:54 +0200 (MET DST) Message-ID: <19970923000551.VJ48519@uriah.heep.sax.de> Date: Tue, 23 Sep 1997 00:05:51 +0200 From: j@uriah.heep.sax.de (J Wunsch) To: hackers@FreeBSD.ORG Cc: dkelly@hiwaay.net Subject: Re: "Load Defaults" was my cure! (Was: Re: Do *you* have problems with floppies?) References: <19970916091455.RH14318@uriah.heep.sax.de> <199709220300.WAA02213@nospam.hiwaay.net> X-Mailer: Mutt 0.60_p2-3,5,8-9 Mime-Version: 1.0 X-Phone: +49-351-2012 669 X-PGP-Fingerprint: DC 47 E6 E4 FF A6 E9 8F 93 21 E0 7D F9 12 D6 4E Reply-To: joerg_wunsch@uriah.heep.sax.de (Joerg Wunsch) In-Reply-To: <199709220300.WAA02213@nospam.hiwaay.net>; from dkelly@hiwaay.net on Sep 21, 1997 22:00:39 -0500 Sender: owner-freebsd-hackers@FreeBSD.ORG X-Loop: FreeBSD.org Precedence: bulk As dkelly@hiwaay.net wrote: > This is really why I'm replying to this older thread: Selecting "Load > Defaults" in the BIOS setup cured my floppy problem. Tor Egge tracked it down to an apparently broken floppy chip (most likely, the chip doesn't report DMA overruns correctly), and submitted a workaround that enables the FIFO on chips where this seems to be applicable. This hides the error well enough, and is also a good explanation why other operating systems on the same hardware didn't experience problems. Try the most recent -current, and see how it comes out. If it doesn't break for anyone, this might be a 2.2.5 candidate as well. (I tried it on an actual NE765-compatible 40-pin chip, and it doesn't break there either.) Terry submitted me a larger patch that is supposed to classify a good deal of FDC chips by feature categories, but i have yet to find an hour silent enough to test this. -- cheers, J"org joerg_wunsch@uriah.heep.sax.de -- http://www.sax.de/~joerg/ -- NIC: JW11-RIPE Never trust an operating system you don't have sources for. ;-)