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Message-Id: <199901060451.UAA12400@hub.freebsd.org>
Date: Tue, 5 Jan 1999 20:51:46 -0800 (PST)
From: kowkn@asia1.com.sg
To: freebsd-gnats-submit@FreeBSD.ORG
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Subject: i386/9341: tty-level buffer overflows
Sender: owner-freebsd-bugs@FreeBSD.ORG
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>Number:         9341
>Category:       i386
>Synopsis:       tty-level buffer overflows
>Confidential:   no
>Severity:       non-critical
>Priority:       medium
>Responsible:    freebsd-bugs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Tue Jan  5 21:00:01 PST 1999
>Closed-Date:
>Last-Modified:
>Originator:     Kow Kee Nge
>Release:        FreeBSD 2.2.2-RELEASE
>Organization:
Singapore Press Holdings Ltd
>Environment:
lewis:/usr/home/kowkn:/var/log> uname -a
FreeBSD lewis.asia1.com.sg 2.2.2-RELEASE FreeBSD 2.2.2-RELEASE #0: Fri Apr  3 17:22:33 SGT 1998     root@lewis.asia1.com.sg:/usr/src/sys/compile/LEWIS  i386
>Description:
Have wrote a C program constanly capturing data from 
/dev/cuaa0. Very often get the following messages in
/var/log/messages.
Jan  5 16:22:13 lewis /kernel: sio0: 646 more tty-level buffer overflows (total 24
16)  
Jan  5 16:22:14 lewis /kernel: sio0: 952 more tty-level buffer overflows (total 33
68)  
Jan  5 16:22:15 lewis /kernel: sio0: 952 more tty-level buffer overflows (total 43
20)  
Jan  5 16:22:16 lewis /kernel: sio0: 966 more tty-level buffer overflows (total 52
86)  
Jan  5 16:22:17 lewis /kernel: sio0: 616 more tty-level buffer overflows (total 59
02)  

What system parameters should we tune to increate the tty-level
buffer?
>How-To-Repeat:

>Fix:

>Release-Note:
>Audit-Trail:
>Unformatted:

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