cman is not starting after update to RHEL 6 Update 6 in a High Availability cluster with sctp blacklisted
Issue
When we try to start cman we get following error:
Loading kernel modules... WARNING: Error running install command for sctp
FATAL: Error inserting dlm (/lib/modules/2.6.32-504.el6.x86_64/kernel/fs/dlm/dlm.ko): Unknown symbol in module, or unknown parameter (see dmesg)
- After update to RHEL 6.6 the service cman (cluster) Failed
cmancan not start whenipv6is blacklisted- An HA cluster cannot start with the following errors when an IPv6 protocol is disabled.
# pcs cluster start
Starting Cluster...
Starting cluster:
Checking if cluster has been disabled at boot... [ OK ]
Checking Network Manager... [ OK ]
Global setup... [ OK ]
Loading kernel modules... WARNING: Error inserting configfs
(/lib/modules/2.6.32-504.30.3.el6.x86_64/kernel/fs/configfs/configfs.ko): Unknown symbol in module, or unknown parameter (see dmesg)
FATAL: Error inserting dlm
(/lib/modules/2.6.32-504.30.3.el6.x86_64/kernel/fs/dlm/dlm.ko): Unknown symbol in module, or unknown parameter (see dmesg)
[FAILED]
Stopping cluster:
Leaving fence domain... [ OK ]
Stopping gfs_controld... [ OK ]
Stopping dlm_controld... [ OK ]
Stopping fenced... [ OK ]
Stopping cman... [ OK ]
Unloading kernel modules... [ OK ]
Unmounting configfs... [ OK ]
# dmesg | tail
sctp: Unknown symbol unregister_inet6addr_notifier
sctp: Unknown symbol inet6_getname
sctp: Unknown symbol ip6_xmit
sctp: Unknown symbol inet6_register_protosw
sctp: Unknown symbol icmpv6_err_convert
sctp: Unknown symbol inet6_release
sctp: Unknown symbol register_inet6addr_notifier
sctp: Unknown symbol compat_ipv6_getsockopt
sctp: Unknown symbol ipv6_chk_addr
sctp: Unknown symbol ipv6_getsockopt
- Unable to start DLM without SCTP.
Environment
- Red Hat Enterprise Linux (RHEL) 6 Update 6 or later with the High Availability or Resilient Storage Add-On
kernel-2.6.32-504.el6or later- The
sctpmodule is blacklisted or configured to load/bin/trueor/bin/falsein/etc/modprobe.d/*
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