From owner-freebsd-alpha Sat Oct 7 6:49: 4 2000 Delivered-To: freebsd-alpha@freebsd.org Received: from cgi.sstar.com (cgi.sstar.com [209.205.176.12]) by hub.freebsd.org (Postfix) with ESMTP id 813F537B66C for ; Sat, 7 Oct 2000 06:49:02 -0700 (PDT) Received: from bluto.jimking.net (bluto.jimking.net [216.54.255.8]) by cgi.sstar.com (8.11.0/8.9.3) with ESMTP id e97Dms582929; Sat, 7 Oct 2000 08:48:54 -0500 (CDT) (envelope-from jim@jimking.net) Received: from marble (marble.lgc.com [134.132.228.4]) by bluto.jimking.net (8.11.0/8.11.0) with SMTP id e97DmoP86205; Sat, 7 Oct 2000 08:48:52 -0500 (CDT) (envelope-from jim@jimking.net) Message-ID: <02ab01c03065$552852b0$04e48486@marble> From: "Jim King" To: "Michael Kennett" , References: <20001007180232.A8108@alpha.laurasia.com.au> Subject: Re: Alpha SIO errors Date: Sat, 7 Oct 2000 08:48:50 -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 5.50.4133.2400 X-MimeOLE: Produced By Microsoft MimeOLE V5.50.4133.2400 Sender: owner-freebsd-alpha@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.org Michael Kennett wrote: > Hello All, > > I've been receiving a lot of SIO errors over a 56K modem connection: > [snip] > > The sio0 port is being used by ppp. > > I'm at a bit of a loss on how to tackle this problem. The machine is *very* > lightly loaded (i.e. sitting idle most of the time), and I'd like to resolve > the overflows, as it is causing HDLC errors (bad frame check sequence fields) > in ppp, and consequently for the link to drop out occassionally. > > Any advice would be appreciated, It gets worse: I tried to use a GPS receiver to drive ntpd. The GPS sends data at only 9600 bps, and my machine was also very lightly loaded, but FreeBSD would consistently lock up within a few hours. Based on my experience and messages I've seen on this list like yours I'd have to say that SIO on FreeBSD/Alpha is pretty much useless. Jim To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-alpha" in the body of the message