[CUWiN-Dev] quagga bug heads-up; development update

[David Young]

See the description of a Quagga bug, below, which may affect CUWiN nodes.

BTW, this week I fixed some hslsd bugs. Some bugs would break LSU
propagation, others caused hslsd crashes.  I will be checking that stuff
in, soon.

I fiddled a bit with the watchdog timer discipline in CUWiN, so that
the kernel will not cancel the watchdog timer if the userland process
that tickles it gets killed due to an out of memory condition, say.

I have updated my NetBSD sources a lot.  Expect a new drop, soonish.

I will also be checking in support for cross-compiling CUWiN for any
architecture supported by NetBSD, including an Atheros "system on a chip"
(SoC), the AR5312.

I have CUWiN just barely running on the Senao/Engenius Aries2 AP,
<http://www.keenansystems.com/store/catalog/product_info.php?products_id=44>,
which has an Atheros "system on a chip" (SoC) inside.  The SoC has
independent 802.11a and 802.11b/g WLAN, an ethernet, serial, and a
MIPS CPU.  The AP has 2MB Flash (!!) and 8MB RAM (!).  I don't think
we will ever fit CUWiN on the 2MB Flash; I am running the system with
an NFS root filesystem.  Still, support for this AP gets us about 80%
of the way to support for the Meraki Mini, <www.meraki.net>, which has
lots more Flash and RAM.

Since wintertime, I have been working on a tough 802.11 project through
OJC, so I have scarcely any time for CUWiN these days.  It's too bad:
I enjoy hacking on CUWiN, there is lots left to do, and I have many
new ideas.  Depending on my availability and funding, I may be able to
re-dedicate myself to CUWiN development as early as mid-July.

Dave

----- Forwarded message from "Andrew J. Schorr" <aschorr at telemetry-investments.com> -----

Date: Wed, 28 Jun 2006 21:26:10 -0400
From: "Andrew J. Schorr" <aschorr at telemetry-investments.com>
To: Quagga Dev <quagga-dev at lists.quagga.net>
Subject: [quagga-dev 4181] route missing from kernel routing table on linux

Hi,

I've noticed with the latest 0.99.4 CVS snapshot that a route is occasionally
not making it into the kernel routing table on my linux 2.6.10 system:

$ vtysh -c 'show ip route 199.105.184.0/23'
Routing entry for 199.105.184.0/23
  Known via "ospf", distance 110, metric 20, best
  Last update 01:37:16 ago
  * 192.168.167.74, via eth0.19
  * 192.168.167.75, via eth0.19
  * 192.168.167.76, via eth0.19

$ ip -o route ls  | grep 199.105.184.0/23

There are a total of 53 routes in my routing table (actually, there should
be 54):

$ ip -o route ls | wc
     53    1045    7667

And only 42 of these are zebra-generated routes:

$ ip -o route ls | grep zebra | wc
     42     948    6859

Should I be having problems with netlink buffer overruns with a routing
table of this size?

Regards,
Andy
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----- End forwarded message -----
----- Forwarded message from Paul Jakma <paul at clubi.ie> -----

Date: Thu, 29 Jun 2006 07:13:14 +0100 (IST)
From: Paul Jakma <paul at clubi.ie>
To: "Andrew J. Schorr" <aschorr at telemetry-investments.com>
Cc: Quagga Dev <quagga-dev at lists.quagga.net>
Subject: [quagga-dev 4183] Re: route missing from kernel routing table on linux

On Wed, 28 Jun 2006, Andrew J. Schorr wrote:

>Should I be having problems with netlink buffer overruns with a routing
>table of this size?

Not really..

It sounds like the zebra RIB add/delete work-queue race, which a few 
people have complained about now (see bug #268 as well as the 
original problem report on quagga-dev iirc) which I really should go 
fix ASAP.

regards,
-- 
Paul Jakma	paul at clubi.ie	paul at jakma.org	Key ID: 64A2FF6A
Fortune:
"'Tis true, 'tis pity, and pity 'tis 'tis true."
-- Poloniouius, in Willie the Shake's _Hamlet, Prince of Darkness_

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----- End forwarded message -----

-- 
David Young             OJC Technologies
dyoung at ojctech.com      Urbana, IL * (217) 278-3933