A find shows two modules - the one that got installed with the kernel (kernel/drivers/block/drbd/drbd.ko) and the one that we have compiled from the sources (updates/drbd.ko)

---------snip------------
#find /lib/modules/`uname -r` -name "drbd.ko"
/lib/modules/3.2.0-0.bpo.1-amd64/updates/drbd.ko
/lib/modules/3.2.0-0.bpo.1-amd64/kernel/drivers/block/drbd/drbd.ko
---------snip------------

but loaded seems to be the compiled 8.4.1 (checked on both nodes)

--------------snip-------------
#modinfo drbd
filename:       /lib/modules/3.2.0-0.bpo.1-amd64/updates/drbd.ko
alias:          block-major-147-*
license:        GPL
version:        8.4.1
description:    drbd - Distributed Replicated Block Device v8.4.1
author: Philipp Reisner <[email protected]>, Lars Ellenberg <[email protected]>
srcversion:     4A4FDD6F2ECF22BD2AD5970
depends:        libcrc32c
vermagic:       3.2.0-0.bpo.1-amd64 SMP mod_unload modversions
parm: minor_count:Approximate number of drbd devices (1-255) (uint)
parm:           disable_sendpage:bool
parm:           allow_oos:DONT USE! (bool)
parm:           proc_details:int
parm:           enable_faults:int
parm:           fault_rate:int
parm:           fault_count:int
parm:           fault_devs:int
parm:           usermode_helper:string
--------------snip-------------

I can of course manually delete the stock drbd module - just to make sure, but I do not believe that this will change anything.

Christoph Roethlisberger



----- Original Message ----- From: "Lars Ellenberg" <[email protected]>
To: <[email protected]>
Sent: Monday, February 27, 2012 5:40 PM
Subject: Re: [DRBD-user] Pacemaker - DRBD fails on node every couple hours



Check that you really have loaded the DRBD 8.4.1 kernel module.

My guess is that you have some drbd 8.3 module loaded.

find /lib/modules/`uname -r` -name "drbd.ko"

You probably have more than one.
Make sure you load the one you want.

: Lars Ellenberg

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