On Sun, Feb 27, 2011 at 12:05 AM, Tony Houghton [off-list ref] wrote:

On Fri, 25 Feb 2011 16:57:45 +0000
Tony Houghton [off-list ref] wrote:

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On Fri, 25 Feb 2011 21:37:25 +0530
Mohammed Shafi [off-list ref] wrote:

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On Fri, Feb 25, 2011 at 8:17 PM, Tony Houghton [off-list ref] wrote:

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I haven't tried looking in logs because the crashes are so severe I
don't think they'd be able to record anything useful.

Can you please get those messages with net console ?

No, I can't get it to work. I found a good guide at
<http://www.novell.com/communities/node/4753/netconsole-howto-send-kernel-boot-messages-over-ethernet>
and adapted it for Debian but absolutely no messages appear. I connected
it via Ethernet to another netbook which runs Ubuntu. On the Debian one
(the one with the problem I want to debug) I added to
/etc/network/interfaces:

auto eth0
iface eth0 inet static
   address 10.0.0.20
   netmask 255.255.255.0

and on Ubuntu:

auto eth0
iface eth0 inet static
   address 10.0.0.10
   netmask 255.255.255.0

On the Debian one I added netconsole to
/etc/modules and created /etc/modprobe.d/netconsole.conf containing:

options netconsole netconsole=4444@10.0.0.20/eth0,6666@10.0.0.10/00:1E:68:DD:DB:40

On the Ubuntu one I ran:

nc -l -u 6666

I've double-checked the addresses etc and verified that the link is up
and the netconsole module is loaded, but no messages appear.

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If I enable debugging is there a way to get it to sync to disc after
every message? I think the developers are going to need at least that
information to be able to track this down.

Yes sure, that could narrow down the issue.

I'll try that first because it should be easier than setting up net
console.

I tried to reconfigure rsyslog to sync on each message but it didn't log
anything useful :-(.

I will try to reproduce here with my platform.

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