kern/99607: pppd fail kernel from more interrupts in serilal port (/dev/cuad0)

[Kris Kennaway]

The following reply was made to PR kern/99607; it has been noted by GNATS.

From: Kris Kennaway <kris at obsecurity.org>
To: Den <den at holod-jsc.com>
Cc: freebsd-gnats-submit at 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:
 
 > >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.
 
 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