From owner-freebsd-questions Sun May 17 18:03:50 1998 Return-Path: Received: (from majordom@localhost) by hub.freebsd.org (8.8.8/8.8.8) id SAA00899 for freebsd-questions-outgoing; Sun, 17 May 1998 18:03:50 -0700 (PDT) (envelope-from owner-freebsd-questions@FreeBSD.ORG) Received: from freebie.lemis.com (freebie.lemis.com [139.130.136.133]) by hub.freebsd.org (8.8.8/8.8.8) with ESMTP id SAA00827 for ; Sun, 17 May 1998 18:03:23 -0700 (PDT) (envelope-from grog@lemis.com) Received: (from grog@localhost) by freebie.lemis.com (8.8.8/8.8.7) id KAA03158; Mon, 18 May 1998 10:32:57 +0930 (CST) (envelope-from grog) Message-ID: <19980518103257.L427@freebie.lemis.com> Date: Mon, 18 May 1998 10:32:57 +0930 From: Greg Lehey To: Jt Cc: questions@FreeBSD.ORG Subject: Re: sio driver References: <19980517103457.F370@freebie.lemis.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-Mailer: Mutt 0.91.1i In-Reply-To: ; from Jt on Sun, May 17, 1998 at 03:37:22PM -0400 WWW-Home-Page: http://www.lemis.com/~grog Organization: LEMIS, PO Box 460, Echunga SA 5153, Australia Phone: +61-8-8388-8286 Fax: +61-8-8388-8725 Mobile: +61-41-739-7062 Sender: owner-freebsd-questions@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG On Sun, 17 May 1998 at 15:37:22 -0400, Jt wrote: > On Sun, 17 May 1998, Greg Lehey wrote: > >> On Sat, 16 May 1998 at 13:50:21 -0400, Jt wrote: >>> >>> In Release 2.2.6 I am getting interrupt level buffer overflows >>> the man sio says it in the bottom of the driver. >>> I got 16650 serial card hoping it would fix this problem. >>> I guess it is a driver problem. Is anyone looking at this ? >>> This has been a problem since 2.0.1. >> >> Strange. I don't hear of many of these. >> >>> If linux doesn't have this problem why a stable bsd like freebsd >>> unable to fix this.? >> >> You can fix FreeBSD to make it work like Linux. Just remove the code >> that prints the message. > > > Will this also allow the speed to be normal on tranfers. is printing the > msg to console whats bogging down the transfer? > > sio1: 5 more interrupt-level buffer overflows (total 10) > sio1: 5 more interrupt-level buffer overflows (total 15) > sio1: 5 more interrupt-level buffer overflows (total 20) > sio1: 5 more interrupt-level buffer overflows (total 25) > sio1: 5 more interrupt-level buffer overflows (total 30) > sio1: 5 more interrupt-level buffer overflows (total 35) > > I found there is an obscure setting in current for the fifo buffer > to enable 32 byte. might help. You didn't say that you were running at 230,000 bps. It looks like John Kelly's answer was the most useful. Greg -- See complete headers for address and phone numbers finger grog@lemis.com for PGP public key To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message