Bug#573829: drbd disagrees about version of symbol cn_add_callback after kernel upgrade

[maximilian attems <max@stro.at>]

On Sun, Mar 14, 2010 at 07:38:25PM +1100, David Marshall wrote:
> Package: drbd8-modules-2.6.26-2-xen-686
> Version: 2.6.26+8.0.14-6+lenny1
> 
> After upgrading xen-utils, linux-image-2.6.26-2-xen-686 and 
> linux-modules-2.6.26-2-xen-686 drbd fails to start.
> 
> I see the following errors in syslog:
> Mar 14 17:24:01 carbon modprobe: FATAL: Error inserting drbd 
> (/lib/modules/2.6.26-2-xen-686/extra/drbd8/drbd/drbd.ko): Unknown symbol 
> in module, or unknown parameter (see dmesg)
> Mar 14 17:24:01 carbon kernel: [   28.197796] drbd: disagrees about 
> version of symbol cn_add_callback
> Mar 14 17:24:01 carbon kernel: [   28.198014] drbd: Unknown symbol 
> cn_add_callback
> 
> 
> My version of linux is:
> Linux carbon 2.6.26-2-xen-686 #1 SMP Tue Mar 9 20:11:42 UTC 2010 i686 
> GNU/Linux

"this is a known bug and will be fixed shortly by security updates to
drbd8 and linux-modules-extra-2.6.

Ben."

duplicate bug report, see #573490 and #573531,
please next time check for existing bug report before reporting.
thanks