[DRBD-user] Kernel oops on create-md

Stef Morrell stef at aoc-uk.com
Thu Oct 15 15:10:54 CEST 2009

Note: "permalinks" may not be as permanent as we would like,
direct links of old sources may well be a few messages off.


I'm attempting to run drbd 8.3.4 against Linux 2.31.4. I'm making the
(possibly incorrect) assumption that from the Changelog, 

 * Following Linux upstream changes 2.6.31

that I'm ok on the 2.6.31 kernel series.

I've patched the kernel directly and can see from

root [ /sources/drbd-8.3.4 ]# cat /proc/drbd
version: 8.3.4 (api:88/proto:86-91)
GIT-hash: 70a645ae080411c87b4482a135847d69dc90a6a2 build by
root at atuin-1, 2009-10-15 11:36:31

that the patch has been applied correctly.

My problem is that when I attempt to create the metadata I get a kernel
Oops, output of which is attached. I've also included my drbd.conf, very
basic, but there you have it.

Problem is 100% reproduceable both on this machine and it's (identical)
counterpart which will (eventually) form the second node in the cluster.

I've wondered if it is a kernel compatibility problem,

I've also wonder if drbd doesn't like to run on a software mirror (md
device), though am guided by "You can stack DRBD on top of md, md on top
of DRBD is nonsense, however." from
http://www.linux-ha.org/DataRedundancyByDrbd. Further discussion on this
list from a couple of years ago is quite confusing!

I wonder if anyone can provide some advice?

Kind regards

Stefan Morrell          | Operations Director
Tel: 0845 3452820       | Alpha Omega Computers Ltd
Fax: 0845 3452830       | Incorporating Level 5 Internet
stef at aoc-uk.com         | stef at l5net.net

Standard Disclaimer: http://www.aoc-uk.com/16.asp

Alpha Omega Computers Ltd, Batley Technology Centre, Grange Road,
Batley, WF17 6ER.
Registered in England No. 3867142.  VAT No. GB734421454
-------------- next part --------------
An embedded and charset-unspecified text was scrubbed...
Name: oops.txt
URL: <http://lists.linbit.com/pipermail/drbd-user/attachments/20091015/fb8d7e52/attachment.txt>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: drbd.conf
Type: application/octet-stream
Size: 370 bytes
Desc: drbd.conf
URL: <http://lists.linbit.com/pipermail/drbd-user/attachments/20091015/fb8d7e52/attachment.obj>

More information about the drbd-user mailing list