From nobody@FreeBSD.ORG  Wed Oct 18 15:44:25 2000
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Date: Wed, 18 Oct 2000 15:44:24 -0700 (PDT)
From: kienow@infinet.com
Sender: nobody@FreeBSD.ORG
To: freebsd-gnats-submit@FreeBSD.org
Subject: Xircom CreditCard CM-56T Modem keeps giving interrupt-level buffer overflows.
X-Send-Pr-Version: www-1.0

>Number:         22099
>Category:       kern
>Synopsis:       Xircom CreditCard CM-56T Modem keeps giving interrupt-level buffer overflows.
>Confidential:   no
>Severity:       non-critical
>Priority:       low
>Responsible:    freebsd-bugs
>State:          closed
>Quarter:        
>Keywords:       
>Date-Required:  
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Wed Oct 18 15:50:18 PDT 2000
>Closed-Date:    Sun Jun 02 03:46:08 PDT 2002
>Last-Modified:  Sun Jun 02 03:46:08 PDT 2002
>Originator:     Matt
>Release:        4.1-STABLE
>Organization:
>Environment:
FreeBSD notebook 4.1-STABLE FreeBSD 4.1-STABLE #0: Mon Sep 25 22:20:40 EDT 2000
     root@notebook:/usr/obj/usr/src/sys/notebook  i386
>Description:
Whenever I place a heavy network load on my modem I get the following
messages over and over.  Why does this happen? and how can it be fixed?
Also, what are the results of these messages? Am I not getting the
best speed on my connection as I should?

sio3: 88 more interrupt-level buffer overflows (total 88)
sio3: 50 more interrupt-level buffer overflows (total 138)
sio3: 58 more interrupt-level buffer overflows (total 196)
sio3: 8 more interrupt-level buffer overflows (total 204)
sio3: 179 more interrupt-level buffer overflows (total 383)
sio3: 81 more interrupt-level buffer overflows (total 464)
sio3: 35 more interrupt-level buffer overflows (total 499)
>How-To-Repeat:

>Fix:


>Release-Note:
>Audit-Trail:

From: Bruce Evans <bde@zeta.org.au>
To: kienow@infinet.com
Cc: freebsd-gnats-submit@FreeBSD.ORG
Subject: Re: kern/22099: Xircom CreditCard CM-56T Modem keeps giving
 interrupt-level buffer overflows.
Date: Fri, 27 Oct 2000 17:42:25 +1100 (EST)

 On Wed, 18 Oct 2000 kienow@infinet.com wrote:
 
 > >Description:
 > Whenever I place a heavy network load on my modem I get the following
 > messages over and over.  Why does this happen? and how can it be fixed?
 > Also, what are the results of these messages? Am I not getting the
 > best speed on my connection as I should?
 > 
 > sio3: 88 more interrupt-level buffer overflows (total 88)
 > sio3: 50 more interrupt-level buffer overflows (total 138)
 
 This might be caused by the modem not emulating a UART properly.  If it
 has a too-large buffer, then it might flood the driver buffers.  Try
 enabling RTS/CTS flow control if it isn't already.  Try increasing
 cp4ticks in the driver.
 
 Bruce
 
 
State-Changed-From-To: open->feedback 
State-Changed-By: iedowse 
State-Changed-When: Sat Nov 17 12:00:18 PST 2001 
State-Changed-Why:  

Does this problem still occur? 

http://www.FreeBSD.org/cgi/query-pr.cgi?pr=22099 
State-Changed-From-To: feedback->closed 
State-Changed-By: iedowse 
State-Changed-When: Sun Jun 2 03:45:45 PDT 2002 
State-Changed-Why:  

Feedback timeout. 

http://www.freebsd.org/cgi/query-pr.cgi?pr=22099 
>Unformatted:
