On Tue, Jan 20, 2015 at 11:55:40AM +0530, Deepak Shetty wrote: > What does "Controller" mean, the openstack controller node or somethign > else (like HBA ) ? > You picture says its SAN but the text says multi-path mount.. SAN would > mean block devices, so I am assuming you have redundant block devices on > the compute host, mkfs'ing it and then creating bricks for gluster ? > > > The stack trace looks like you hit a kernel bug and glusterfsd happens to > be running on the CPU at the time... my 2 cents That definitely is a kernel issue. You should contact your OS support vendor about this. The bits you copy/pasted are not sufficient to see what caused it. The glusterfsd process is just a casualty of the kernel issue, and it is not likely this can be fixed in Gluster. I suspect you need a kernel patch/update. Niels > > thanx, > deepak > > On Tue, Jan 20, 2015 at 11:29 AM, chamara samarakoon <chthsa123@xxxxxxxxx> > wrote: > > > 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 > > > > > > _______________________________________________ > > Gluster-users mailing list > > Gluster-users@xxxxxxxxxxx > > http://www.gluster.org/mailman/listinfo/gluster-users > > > _______________________________________________ > Gluster-users mailing list > Gluster-users@xxxxxxxxxxx > http://www.gluster.org/mailman/listinfo/gluster-users
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