[Gluster-users] CentOS Freeze with GlusterFS Error

[chamara samarakoon]

Hi All,


We have setup Openstack cloud as below. And the "/va/lib/nova/instances" is
a Gluster volume.

CentOS - 6.5
Kernel -  2.6.32-431.29.2.el6.x86_64
GlusterFS - glusterfs 3.5.2 built on Jul 31 2014 18:47:54
OpenStack - RDO using Packstack




​


Recently Controller node freezes with following error (Which required hard
reboot), as a result Gluster volumes on compute node can not reach the
controller and due to that all the instances on compute nodes  become to
read-only status  which causes to restart all instances.




*BUG: scheduling while atomic : glusterfsd/42725/0xffffffff*
*BUG: unable to handle kernel paging request at 0000000038a60d0a8*
*IP: [<fffffffff81058e5d>] task_rq_lock+0x4d/0xa0*
*PGD 1065525067 PUD 0*
*Oops: 0000 [#1] SMP*
*last sysfs file :
/sys/device/pci0000:80/0000:80:02.0/0000:86:00.0/host2/port-2:0/end_device-2:0/target2:0:0/2:0:0:1/state*
*CPU 0*
*Modules linked in : xtconntrack iptable_filter ip_tables ipt_REDIRECT fuse
ipv openvswitch vxlan iptable_mangle *

Please advice on above incident , also feedback on the Openstack +
GlusterFS setup is appreciated.

Thank You,
Chamara
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