From owner-freebsd-stable Thu Jan 21 21:31:02 1999 Return-Path: Received: (from majordom@localhost) by hub.freebsd.org (8.8.8/8.8.8) id VAA19370 for freebsd-stable-outgoing; Thu, 21 Jan 1999 21:31:02 -0800 (PST) (envelope-from owner-freebsd-stable@FreeBSD.ORG) Received: from lohi.clinet.fi (lohi.clinet.fi [194.100.0.7]) by hub.freebsd.org (8.8.8/8.8.8) with ESMTP id VAA18929 for ; Thu, 21 Jan 1999 21:29:03 -0800 (PST) (envelope-from hsu@mail.clinet.fi) Received: from katiska.clinet.fi (katiska.clinet.fi [194.100.0.4]) by lohi.clinet.fi (8.9.1/8.9.0) with ESMTP id GAA23033; Fri, 22 Jan 1999 06:43:31 +0200 (EET) Received: (from hsu@localhost) by katiska.clinet.fi (8.9.0/8.9.0) id GAA03051; Fri, 22 Jan 1999 06:41:31 +0200 (EET) To: "John Saunders" Cc: freebsd-stable@FreeBSD.ORG Subject: Re: Kernel PPP tty-level buffer overflows References: From: Heikki Suonsivu Date: 22 Jan 1999 06:41:30 +0200 In-Reply-To: "John Saunders"'s message of 19 Jan 1999 23:40:25 +0200 Message-ID: Lines: 44 X-Mailer: Gnus v5.3/Emacs 19.34 Sender: owner-freebsd-stable@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG "John Saunders" writes: > Does anybody know how to fix the following. > > > XXX.XXX.XXX.XXX kernel log messages: > > > sio0: 815 more tty-level buffer overflows (total 4715) > > > sio0: 3093 more tty-level buffer overflows (total 7808) You need to configure your kernel with options "TTYHOG=4096" options "RS_IBUFSIZE=1024" and you need to patch sio.c to allow overriding RS_IBUFSIZE, as it is hardcoded (cyclades driver has the same problem, I think). > System is... > > FreeBSD XXX.XXX.XXX.XXX 2.2.8-STABLE FreeBSD 2.2.8-STABLE #0: Sat Jan 16 13:49:15 EST 1999 > root@XXX.XXX.XXX.XXX:/usr/src/sys/compile/MONSTER i386 > > Modem info is... > Device: /dev/cuaa0 > dmesg: sio0 at 0x3f8-0x3ff irq 4 on isa > dmesg: sio0: type 16550A > speed: 115200bps > carrier: Jan 20 07:02:47 XXX chat[888]: CARRIER 54000 > > Cheers. > -- +------------------------------------------------------------+ > . | John Saunders - mailto:john@nlc.net.au (EMail) | > ,--_|\ | - http://www.nlc.net.au/ (WWW) | > / Oz \ | - 02-9489-4932 or 041-822-3814 (Phone) | > \_,--\_/ | NHJ NORTHLINK COMMUNICATIONS - Supplying a professional, | > v | and above all friendly, internet connection service. | > +------------------------------------------------------------+ > > > To Unsubscribe: send mail to majordomo@FreeBSD.org > with "unsubscribe freebsd-stable" in the body of the message -- Heikki Suonsivu / Clinet Oy / Tekniikantie 12 / FI-02150 Espoo / FINLAND, hsu@clinet.fi mobile +358-40-5519679 work +358-9-43542270 fax -4555276 To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-stable" in the body of the message