From owner-freebsd-questions Mon May 28 3:11:55 2001 Delivered-To: freebsd-questions@freebsd.org Received: from new-smtp2.ihug.com.au (new-smtp2.ihug.com.au [203.109.250.28]) by hub.freebsd.org (Postfix) with ESMTP id CD21837B424 for ; Mon, 28 May 2001 03:11:50 -0700 (PDT) (envelope-from john@jmv.com.au) Received: from [203.173.153.228] (p36-max21.syd.ihug.com.au [203.173.153.228]) by new-smtp2.ihug.com.au (8.9.3/8.9.3) with ESMTP id UAA13795 for ; Mon, 28 May 2001 20:11:36 +1000 X-Authentication-Warning: new-smtp2.ihug.com.au: Host p36-max21.syd.ihug.com.au [203.173.153.228] claimed to be [203.173.153.228] X-Sender: john/jmv@mail.webtapestry.net Message-Id: In-Reply-To: <003701c0e751$b5c92740$1401a8c0@tedm.placo.com> References: <20010528074027.22244.qmail@web12008.mail.yahoo.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Date: Mon, 28 May 2001 20:15:34 +1000 To: freebsd-questions@freebsd.org From: John Vender Subject: RE: oops! sio0 err <- rest of err message Sender: owner-freebsd-questions@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG This problems is not exclusive to slow boxes. Just over a year ago I= installed 3.4 on a new Dell with a 500MHz PIII and when I got PPP going I= saw a mountain of the sio0 overflows. Bit of hunting around found the= advice to turn on DMA for the IDE controller and turn off USB in the BIOS.= This helped a lot but didn't get rid of them completely, just reduced them= to the point where it was possible to ignore them. Just for a test I= installed a second serial port and tried using that, made no difference. Cheers...John >I've noticed a big incidents of sio overflows on >slower CPU's commencing from FreeBSD version 3.0 >I've had a number of FreeBSD 2.2.8 systems that were >involved in various serial port work that I've >upgraded over the years and that started spitting >that out. > >I suspect that some change was made going from >2.2.8 to 3.0 that adversely affected the sio driver. >Maybe the time slice was changed the scheduler gives >out or some such. Strangely, I've never seen them with PPP but I have seen >them with UUCP and other serial intensive >programs. Since I don't use COM ports anymore for >high volume data transfer I haven't pursued it. > >Ted Mittelstaedt tedm@toybox.placo.com >Author of: The FreeBSD Corporate Networker's Guide >Book website: http://www.freebsd-corp-net-guide.com > > >>-----Original Message----- >>From: owner-freebsd-questions@FreeBSD.ORG >>[mailto:owner-freebsd-questions@FreeBSD.ORG]On Behalf Of Keith Spencer >>Sent: Monday, May 28, 2001 12:40 AM >>To: freebsd-questions@FreeBSD.ORG >>Subject: oops! sio0 err <- rest of err message >> >> >>Hi sorry I forgot to give details... >>Here is Tail messages >>8< snip........... >> >>May 28 13:48:11 myrouter /kernel: sio0: 1 more silo >>overflow (total 4) >>Thanks... >>Is this an issue? >>Can I resolve it? >>Thanks Keith >> >> >>___________________________________________________________________ >>__________ >>http://messenger.yahoo.com.au - Yahoo! Messenger >>- Voice chat, mail alerts, stock quotes and favourite news and lots more! >> >>To Unsubscribe: send mail to majordomo@FreeBSD.org >>with "unsubscribe freebsd-questions" in the body of the message >> > > >To Unsubscribe: send mail to majordomo@FreeBSD.org >with "unsubscribe freebsd-questions" in the body of the message To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message