From owner-freebsd-hackers Fri Aug 16 14:50:43 1996 Return-Path: owner-hackers Received: (from root@localhost) by freefall.freebsd.org (8.7.5/8.7.3) id OAA21021 for hackers-outgoing; Fri, 16 Aug 1996 14:50:43 -0700 (PDT) Received: from dg-rtp.dg.com (dg-rtp.rtp.dg.com [128.222.1.2]) by freefall.freebsd.org (8.7.5/8.7.3) with SMTP id OAA21012 for ; Fri, 16 Aug 1996 14:50:35 -0700 (PDT) Received: by dg-rtp.dg.com (5.4R3.10/dg-rtp-v02) id AA13626; Fri, 16 Aug 1996 17:50:01 -0400 Received: from ponds by dg-rtp.dg.com.rtp.dg.com; Fri, 16 Aug 1996 17:50 EDT Received: from lakes.water.net (lakes [10.0.0.3]) by ponds.water.net (8.7.5/8.7.3) with ESMTP id RAA00231 for ; Fri, 16 Aug 1996 17:14:39 -0400 (EDT) Received: (from rivers@localhost) by lakes.water.net (8.7.5/8.6.9) id RAA06286; Fri, 16 Aug 1996 17:21:05 -0400 (EDT) Date: Fri, 16 Aug 1996 17:21:05 -0400 (EDT) From: Thomas David Rivers Message-Id: <199608162121.RAA06286@lakes.water.net> To: ponds!freefall.cdrom.com!freebsd-hackers, ponds!lakes.water.net!rivers Subject: sio "weirdness" solved... Content-Type: text Sender: owner-hackers@FreeBSD.ORG X-Loop: FreeBSD.org Precedence: bulk Ok - I finally got something reliably working (on a 386dx-33 at 2.1.5.) The problem was I was using an AST4port clone card in "compatibility" mode. (Compatibility was supposed to deliver interrupts correctly; bet it didn't :-) ). This was a card I bought in 1990... Anyway, when I dug up an *ancient* serial card, replaced the 8250 with a 16550 (one that I ripped off of the 4-port clone), everything worked *beautifully*! Also, when I used the AST 4-port clone card the way it was designed (not in "compatibility" mode, but with the COM_MULTIPORT driver configured properly) - things worked there just fine as well (not a single lock-up.) Thanks for all the suggestions! - Dave Rivers -