/etc/webmin/server-manager/status.pl: Unknown Xen config line

Submitted by fatbox on Sun, 09/13/2009 - 13:42

Hi Jamie,

Ever since you gave me the new Cloudmin image with the bridge support for creation I've been getting sporadic Cron emails about Unknown Xen config line.

I've now gotten 4 of them total, each one different. Two we're on Sept 11th (22:45 & 23:00) and two were Sept 13th (04:50 & 09:50).

From: Cron Daemon <root@xxx>
Subject: Cron <root@xxx> /etc/webmin/server-manager/status.pl
Date: September 11, 2009 10:45:07 PM EDT
To: root@xxx

Unknown Xen config line ty1 clocksource=jiffies" From: Cron Daemon <root@xxx>
Subject: Cron <root@xxx> /etc/webmin/server-manager/status.pl
Date: September 11, 2009 11:00:25 PM EDT
To: root@xxx

Unknown Xen config line •••••••••••••••••••••••••••••••••••••••••••• From: Cron Daemon <root@xxx>
Subject: Cron <root@xxx> /etc/webmin/server-manager/status.pl
Date: September 12, 2009 4:50:25 AM EDT
To: root@xxx

Unknown Xen config line 1.139" From: Cron Daemon <root@xxx>
Subject: Cron <root@xxx> /etc/webmin/server-manager/status.pl
Date: September 12, 2009 9:50:25 PM EDT
To: root@xxx

Unknown Xen config line vncpasswd = "F

Let me know what else I can provide to help debug this.

Status: 
Active

Comments

Submitted by JamieCameron on Sun, 09/13/2009 - 19:50

Could you attach one of the Xen .cfg files (typically under the /xen directory on the host) from a virtual system for which you got this error?

Submitted by fatbox on Mon, 09/14/2009 - 08:57

That's the problem, since these emails are coming from my Cloudmin system I don't know which Xen config file is being parsed when the error occurs. However, most of my config files look like this:

kernel = '/xen/vmlinuz-vm2-xenU'
ramdisk = '/xen/initrd.vm2.xenU.img'
memory = 1024
name = 'xen'
address = '1.2.3.4'
netmask = '255.255.255.192'
disk = ['phy:/dev/xen-vg/xen_img,sda1,w']
root = '/dev/sda1 ro'
vif = ['bridge=customer', 'bridge=storage']
extra = 'xencons=tty console=tty1 clocksource=jiffies'
vnc = 5905
vnclisten = "1.2.3.4"
vncdisplay = 5
vncpasswd = "******"

Submitted by JamieCameron on Mon, 09/14/2009 - 11:48

Do any of your config files have clocksource=jiffies in them?

Also, does this email get sent continually, or just occasionally?

Submitted by fatbox on Tue, 09/15/2009 - 22:19

Yes, I was dealing with a clock skew issue on a couple of machines and some of the config files have clocksource=jiffies (Turned out it wasn't the issue but I haven't had a reason to remove it yet).

The email is occasionally. It's almost like the data stream get's corrupted while Cloudmin is trying to read the config of a remote machine. Sometimes it contains actual text from my config files, other times it's non-printable or extended characters (got 2 with euro's today).

Submitted by fatbox on Wed, 09/16/2009 - 10:33

Just got a real interesting one

From: root@xxx (Cron Daemon)
To: root@xxx
Subject: Cron <root@xxx> /etc/webmin/server-manager/status.pl
Date: Wed, 16 Sep 2009 11:30:26 -0400 (EDT)

SIGPIPE handler "ignore" not defined.

Submitted by JamieCameron on Wed, 09/16/2009 - 12:46

That SIGPIPE error looks un-related, but harmless ..

Coming back to the original issue, I suspect you are correct that the Xen .cfg files are not being fetched properly from the Xen host system. Do you see any SSH-related errors in /var/log/messages on the host system?

Submitted by fatbox on Wed, 09/16/2009 - 17:51

Just went through all my logs and couldn't find any ssh errors around the times of the cron emails.

Submitted by JamieCameron on Wed, 09/16/2009 - 18:18

Are you still getting these emails, or did they only happen once?

This is tough to debug, as it looks like an scp of those files was only partially complete a few times..