Internet problem after recent rewrite of mbuf

[Sarunas Vancevicius]

On 09:51, Tue 10 Aug 04, Sarunas Vancevicius wrote:
> On 16:28, Mon 09 Aug 04, Matthew Dillon wrote:
[big snip]
> >     What makes me suspect a serial port issue is that large packets are
> >     clearly being dropped more often then small packets.
> > 
> >     Try reducing the baud rate at which you talk to your modem.  I suspect
> >     you have it set to 115200.  Try 38400 and try 9600.
> > 
> > 						-Matt
> 
> Yeah, it was set to 115200, sio overflows still appear when
> its set to 38400. But they don't appear on 9600.
> 
> My userland is a bit out of sync (29 July, with 02 and 09 August
> kernels, so top doesn't work). I will rebuild userland later
> to see if its sio overflows thats causing pppd to take 90%
> of CPU time.

I rebuilt my userland, even when /etc/ppp/options is set to
connection speed of 9600, pppd is taking huge amounts of CPU:

PID USERNAME PRI NICE  SIZE    RES STATE    TIME   WCPU CPU COMMAND
754 root     227   0  2316K  1348K RUN      4:09 99.02% 99.02% pppd

But there are no signs of sio overflows happening. 

What is it that is causing these problems?

-- 
Sarunas Vancevicius