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Content-ID: <Pine.LNX.3.95q.970615124805.3770G@filesrv1.baby-dragons.com>
Hello Susan,
I've never had to wait more than 5 Min. MAX. for
the kerneld problem to finish.
(when running with the system configuration attached)
Please run the script (also attached) to give us an idea
of the tools & libraries involved, Tnx.
Darn you sure get around ... ;-)
On Sun, 15 Jun 1997 skh@merit.edu wrote:
> Trevor:
> It's not clear that we want to disable pppd in that way
> for general use with gated. Perhaps, if I mentioned that
> the specific call is related to the IP multicast additions
> it would help. Also, when we disabled kerneld (i'm not sure of
> the terminology here.. so please pardon my newbie language)..
> the hangs stopped.
>
> Does the linux kernel handle multicast groups being set across
> ppp links? Thank-you for your quick response.
>
> Sue Hares
> Gated maintainer
> and linux newbie
>
> >> In running gated on this network, we have discovered a Linux kernel/kerneld
> >> bug, and I wonder if anyone on this list might be able to shed some light on
> >> it (or even propose a fix)
> >>
> >> The symptoms are as follows:
> >>
> >> 1. gated sometimes hangs.
> >>
> >> 2. When it is in the hung state, it can still be made to dump core
> >> ('gdc COREDUMP'), and gdb shows that it was waiting in setsockopt() for
> >> an IP_ADD_MEMBERSHIP request.
> >>
> >> 3. At the same time as gated hangs, an extra process is in the kernel table:
> >> request-route <zombie>
> >> which is a child of kerneld
> >
> >The request-route script distributed with the modutils package starts pppd
> >when a request is made for a connection to an IP address to which no route
> >has been established. This way, one's ISP can be automatically dialed
> >when one runs a program that uses TCP/IP.
>
> >My limited understanding of gated is that it's a routing daemon similar to
> >routed. It seems that while it's manipulating the routing table,
> >something (perhaps gated itself) is trying to make connections through
> >routes that don't exist. I assume you don't want to run pppd, so maybe
> >just removing everything but "#!/bin/sh" from the request-route script
> >would cause it to return, so gated can continue.
Hth, JimL
+-----------------------------------------------------------------------+
| James W. Laferriere - Network Engineer - babydr@nwrain.net |
| System Techniques - 25416 - 22nd S. - Kent, WA 98032 |
| Give me VMS -or- Give me Linux -but- only on AXP |
+-----------------------------------------------------------------------+
|-> Linux-Vax Port, Still in Progress . IE: No Progress To Report ;-) <-|
+-----------------------------------------------------------------------+
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