Public bug reported:

Tested on 
Linux host-name 2.6.27-11-generic #1 SMP Thu Jan 29 19:28:32 UTC 2009 x86_64 
GNU/Linux
also tested on x686  version of ubuntu 8.10
Distributor ID: Ubuntu
Description:    Ubuntu 8.10
Release:        8.10
Codename:       intrepid

When Nvidia proprietary binary modules are loaded.  modules 173 all
versions, modules 177 all versions, modules 180 all versions.  There is
a kernel panic every couple boot cycles just after iwlagn begins to
initiate connection.

this is the last line from the daemon log 
NetworkManager: <info>  (wlan0): supplicant manager is now in state 1 (from 0).
acpid: client connected from 5720[0:0] 
nm-system-settings: Adding default connection 'Auto eth0' for 
/org/freedesktop/Hal/devices/net_00_22_15_5e_5b_a7

The hardware is an intel 5100 agn chipset and an nvidia 9600gs.  
blacklisting the iwlagn and iwlcore in /etc/modprobe.d/blacklist stops the panic

If there is anything at all that might help solve this problem this is
very new hardware less than 6 months old I'd be happy to help, my only
recourse is to try a different wifi card and see if that stops the panic
as well.

ProblemType: Bug
Architecture: amd64
DistroRelease: Ubuntu 8.10
NonfreeKernelModules: nvidia
Package: linux-image-2.6.27-11-generic 2.6.27-11.27
ProcCmdLine: root=UUID=350e9591-f15d-4764-a69c-272e95287576 ro quiet
ProcEnviron:
 PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games
 LANG=en_US.UTF-8
 SHELL=/bin/bash
ProcVersionSignature: Ubuntu 2.6.27-11.27-generic
SourcePackage: linux

** Affects: ubuntu
     Importance: Undecided
         Status: New


** Tags: apport-bug

-- 
iwlagn conflicts with nvidia binary drivers 8.10 causes kernel panic
https://bugs.launchpad.net/bugs/329927
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