bin/102226: dhclient stops working,
100% cpu and logs at ~4000 lines/sec
Joost Bekkers
joost at jodocus.org
Sat Aug 19 11:20:17 UTC 2006
The following reply was made to PR bin/102226; it has been noted by GNATS.
From: Joost Bekkers <joost at jodocus.org>
To: Brooks Davis <brooks at one-eyed-alien.net>
Cc: FreeBSD-gnats-submit at freebsd.org
Subject: Re: bin/102226: dhclient stops working, 100% cpu and logs at ~4000 lines/sec
Date: Sat, 19 Aug 2006 13:17:41 +0200
On Fri, Aug 18, 2006 at 08:56:44AM -0500, Brooks Davis wrote:
> > >How-To-Repeat:
> >
> > /sbin/dhclient <interface>
> >
> > and wait.
>
> Since this happends to virtually no one else (your's sounds a lot more
> repeatable than any cases I've heard previously), we'll need more
> information to have any chance of reproducing this. Realistically it's
> not going to be possible for me to do it since it's probably hardware
> dependent (quite possible a NIC + switch/modem combination). What I'd
> like you to do is is capture all dhcp traffic on the interface until
> this happens so I can look at the packet stream and see what's coming in
> and how we're mishandling it. I think the following should do it:
>
> tcpdump -i <interface> -s 0 -w dhcp.pcap port 67
>
> Once you've got that, compress it and put it somewhere I can download
> it. Feel free to send the trace in private e-mail if you don't want the
> information to be public.
>
We're in luck, it already happend again. Aug 19 10:26:25 local time
Capture and log are available at the site mentioned in private mail.
--
greetz Joost
joost at jodocus.org
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