[Pacemaker] pacemaker/corosync: error: qb_sys_mmap_file_open: couldn't open file

[Jacek Konieczny]

After I have upgraded Pacemaker from 1.1.8 to 1.1.9 on a node I get the following errors
in my syslog and Pacemaker doesn't seem to be able to start services on this node.

Jun 24 13:19:44 dev1n2 crmd[5994]:    error: qb_sys_mmap_file_open: couldn't open file /dev/shm/qb-lrmd-request-5991-5994-5-header: Permission denied (13)
Jun 24 13:19:44 dev1n2 crmd[5994]:    error: qb_sys_mmap_file_open: couldn't open file /var/run/qb-lrmd-request-5991-5994-5-header: No such file or directory (2)
Jun 24 13:19:44 dev1n2 crmd[5994]:    error: qb_rb_open: couldn't create file for mmap
Jun 24 13:19:44 dev1n2 crmd[5994]:    error: qb_ipcc_shm_connect: qb_rb_open:REQUEST: No such file or directory (2)
Jun 24 13:19:44 dev1n2 crmd[5994]:    error: qb_ipcc_shm_connect: connection failed: No such file or directory (2)
Jun 24 13:19:44 dev1n2 crmd[5994]:  warning: do_lrm_control: Failed to sign on to the LRM 18 (30 max) times

I have googled for such messages and found nothing relevant.

Any ideas what is going wrong here?

crmd is running with uid 17 ('hacluster'). I have tried to add it to the
'uidgid' section of corosync conf or set uidgid.uid.17 with
corosync-cmapctl, but it didn't help.

Also:

# ls -l /dev/shm/qb-lrmd*
ls: cannot access /dev/shm/qb-lrmd*: No such file or directory

While on a working, Pacemaker 1.1.8 node:

# ls -l /dev/shm/qb-lrmd*
-rw------- 1 hacluster root 20480 Jun 21 10:36 /dev/shm/qb-lrmd-event-1182-1185-6-data
-rw------- 1 hacluster root  8248 Jun 21 10:36 /dev/shm/qb-lrmd-event-1182-1185-6-header
-rw------- 1 hacluster root 20480 Jun 21 10:36 /dev/shm/qb-lrmd-request-1182-1185-6-data
-rw------- 1 hacluster root  8252 Jun 21 10:36 /dev/shm/qb-lrmd-request-1182-1185-6-header
-rw------- 1 hacluster root 20480 Jun 21 10:36 /dev/shm/qb-lrmd-response-1182-1185-6-data
-rw------- 1 hacluster root  8248 Jun 21 10:36 /dev/shm/qb-lrmd-response-1182-1185-6-header

Greets,
	Jacek