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Message-Id: <200606291424.k5TEOL2V099335@www.freebsd.org>
Date: Thu, 29 Jun 2006 14:24:21 GMT
From: Den <den@holod-jsc.com>
To: freebsd-gnats-submit@FreeBSD.org
Subject: pppd fail kernel from more interrupts in serilal port (/dev/cuad0)
X-Send-Pr-Version: www-2.3

>Number:         99607
>Category:       kern
>Synopsis:       [pppd] pppd hangs kernel due to interrupt flood from serial port (/dev/cuad0)
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    freebsd-bugs
>State:          closed
>Quarter:        
>Keywords:       
>Date-Required:  
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Thu Jun 29 14:30:16 GMT 2006
>Closed-Date:    Fri Jul 29 07:56:13 UTC 2011
>Last-Modified:  Fri Jul 29 07:56:13 UTC 2011
>Originator:     Den
>Release:        6.1-RELEASE-p2
>Organization:
>Environment:
FreeBSD master.local 6.1-RELEASE-p2 FreeBSD 6.1-RELEASE-p2 #4: Sat Jun 24 23:48:55 YEKST 2006     root@master.local:/usr/src/sys/i386/compile/MY  i386

>Description:
Use pppd fail kernel from more interrupts in serilal port (/dev/cuad0)
>How-To-Repeat:
Use pppd and modem dial-up (50kb/s, serial port /dev/cuad0) from conect ISP. Get more messages:
Jun 29 20:12:13 master kernel: sio0: 16 more interrupt-level buffer overf
lows (total 16)
Jun 29 20:12:14 master kernel: sio0: 83 more interrupt-level buffer overflows (t
otal 99)
Jun 29 20:12:16 master kernel: sio0: 16 more interrupt-level buffer overflows (t
otal 115)
Jun 29 20:12:37 master kernel: sio0: 16 more interrupt-level buffer overflows (t
otal 131)
Jun 29 20:12:48 master kernel: sio0: 16 more interrupt-level buffer overflows (t
otal 147)
And Fail kernel , frozen OS.
>Fix:
Don't use pppd, clear  kernel, no pppd in her.
>Release-Note:
>Audit-Trail:

From: Kris Kennaway <kris@obsecurity.org>
To: Den <den@holod-jsc.com>
Cc: freebsd-gnats-submit@FreeBSD.org
Subject: Re: kern/99607: pppd fail kernel from more interrupts in serilal port (/dev/cuad0)
Date: Sat, 19 Aug 2006 16:35:35 -0400

 On Thu, Jun 29, 2006 at 02:24:21PM +0000, Den wrote:
 
 > >Fix:
 > Don't use pppd, clear  kernel, no pppd in her.
 
 pppd is indeed widely reported to be broken in various circumstances.
 It has not been maintained in FreeBSD for many years; you will be much
 better off using ppp(8) instead.
 
 Kris
State-Changed-From-To: open->closed 
State-Changed-By: maxim 
State-Changed-When: Fri Jul 29 07:56:01 UTC 2011 
State-Changed-Why:  
pppd(8) was removed from the base long time ago. 

http://www.freebsd.org/cgi/query-pr.cgi?pr=99607 
>Unformatted:
