[PVE-User] drbd issues after kernel upgrade

Robert Fantini rob at fantinibakery.com
Fri Jan 27 17:33:19 CET 2012

On 01/26/2012 11:29 AM, Robert Fantini wrote:
> Hello
> we're using Proxmox 2.0.
> since updating pve-kernel on Tuesday  we've had drbd issues. the new 
> kernel is Version: 2.6.32-55+ovzfix-1 .
> Here are syslog entries:
> on Primary:
> Jan 26 09:58:11 fbc19 kernel: block drbd0: Digest mismatch, buffer 
> modified by upper layers during write: 801263472s +4096

This issue was solved by removing 'data-integrity-alg'  from 
/etc/drbd.conf .

from http://www.drbd.org/users-guide/re-drbdconf.html  : 'We suggest to 
use the data-integrity-alg only during a pre-production phase due to its 
CPU costs. Further we suggest to do online verify runs regularly e.g. 
once a month during a low load period.'

More information about the pve-user mailing list