From owner-freebsd-stable Fri Sep 1 12: 3:30 2000 Delivered-To: freebsd-stable@freebsd.org Received: from cgi.sstar.com (cgi.sstar.com [209.205.176.12]) by hub.freebsd.org (Postfix) with ESMTP id 33AFD37B42C for ; Fri, 1 Sep 2000 12:03:27 -0700 (PDT) Received: from bluto.jimking.net (bluto.jimking.net [216.54.255.8]) by cgi.sstar.com (8.9.3/8.9.3) with ESMTP id OAA83575; Fri, 1 Sep 2000 14:03:25 -0500 (CDT) (envelope-from jim@jimking.net) Received: from jking (jking.lgc.com [134.132.75.164]) by bluto.jimking.net (8.9.3/8.9.3) with SMTP id OAA69462; Fri, 1 Sep 2000 14:03:22 -0500 (CDT) (envelope-from jim@jimking.net) Message-ID: <004201c01447$4d7e24c0$a44b8486@jking> From: "Jim King" To: "James Housley" Cc: "Gary Kline" , "Warner Losh" , References: <200009010501.WAA54972@tao.thought.org> <200009011832.MAA37168@harmony.village.org> <002d01c01444$350c8b00$a44b8486@jking> <39AFFB82.48810283@thehousleys.net> Subject: Re: bad 16550A maybe? Date: Fri, 1 Sep 2000 14:03:22 -0500 MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 5.00.3018.1300 X-MimeOLE: Produced By Microsoft MimeOLE V5.00.3018.1300 Sender: owner-freebsd-stable@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG James Housley wrote: > Jim King wrote: > > > > I think we'd see a lot fewer of these messages on the mailing lists if sio.c > > set the 16550A trigger level to 8 bytes instead of 14 bytes. That's the > > first thing I do when I see this problem, and that usually fixes it; much > > easier than replacing the misbehaving hardware. :-) > > > Is this the right place to do that? > > --- sio.c.orig Wed Aug 16 09:29:34 2000 > +++ sio.c Fri Sep 1 14:53:47 2000 > @@ -2345,7 +2345,7 @@ > * latencies are larger. > */ > com->fifo_image = t->c_ospeed <= 4800 > - ? FIFO_ENABLE : FIFO_ENABLE | > FIFO_RX_HIGH; > + ? FIFO_ENABLE : FIFO_ENABLE | > FIFO_RX_MEDH; > #ifdef COM_ESP > /* > * The Hayes ESP card needs the fifo DMA mode bit set Yep. Jim To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-stable" in the body of the message