rendered paste body/var/log/messages:
Oct 27 21:19:58 xen1 kernel: blkfront: xvdb: barrier: enabled
Oct 27 21:19:58 xen1 kernel: xvdb: xvdb1 xvdb2
Oct 27 21:19:59 xen1 kernel: vbd vbd-51728: 16 Device in use; refusing to close
Oct 27 21:19:59 xen1 kernel: qemu-system-i38[2899]: segfault at 7fac042e4000 ip 00007fac0447b129 sp 00007fffe7028630 error 4 in qemu-system-i386[7fac042ed000+309000]
Oct 27 21:20:12 xen1 kernel: xapi15: port 1(eth1.81) entered forwarding state
Oct 27 21:20:52 xen1 xapi: [ info|xen1.zultron.com|363 UNIX /var/lib/xcp/xapi||cli] xe osd password=null lspools= username=root
Oct 27 21:21:42 xen1 xapi: [ info|xen1.zultron.com|365 UNIX /var/lib/xcp/xapi|session.login_with_password D:fd591f08855d|xapi] Session.create trackid=93881075440eba708422d0109c7e4aa7 pool=false uname=root originator=cli is_local_superuser=true auth_user_sid= parent=trackid=9834f5af41c964e225f24279aefe4e49
Oct 27 21:21:42 xen1 xapi: [ info|xen1.zultron.com|365 UNIX /var/lib/xcp/xapi|session.logout D:a573674c2654|xapi] Session.destroy trackid=93881075440eba708422d0109c7e4aa7
Oct 27 21:22:58 xen1 udevd[585]: worker [5514] unexpectedly returned with status 0x0100
Oct 27 21:22:58 xen1 udevd[585]: worker [5514] failed while handling '/devices/vbd-51728/block/xvdb'
/var/log/debug:
Oct 27 21:19:57 xen27 xenopsd-xenlight: [xenops] Processing disk SR=6afd1b62-1c4f-7898-5511-5cc0969a0da9 VDI=cf5/prov0.root.img
Oct 27 21:19:57 xen27 xenopsd-xenlight: [scheduler] Scheduler sleep until 1382926825 (another 27 seconds)
Oct 27 21:19:57 xen27 xenopsd-xenlight: [scheduler] Scheduler sleep until 1382926825 (another 27 seconds)
Oct 27 21:19:57 xen27 xapi: [ info|xen27.zultron.com|359||storage_impl] VDI.attach dbg:attach_and_activate dp:xenopsd/task/2 sr:6afd1b62-1c4f-7898-5511-5cc0969a0da9 vdi:cf5/prov0.root.img read_write:false
Oct 27 21:19:57 xen27 xapi: [debug|xen27.zultron.com|359||storage_impl] dbg:attach_and_activate dp:xenopsd/task/2 sr:6afd1b62-1c4f-7898-5511-5cc0969a0da9 vdi:cf5/prov0.root.img superstate:attached RO
Oct 27 21:19:57 xen27 xapi: [ info|xen27.zultron.com|360||storage_impl] VDI.activate dbg:attach_and_activate dp:xenopsd/task/2 sr:6afd1b62-1c4f-7898-5511-5cc0969a0da9 vdi:cf5/prov0.root.img
Oct 27 21:19:57 xen27 xapi: [debug|xen27.zultron.com|360||storage_impl] dbg:attach_and_activate dp:xenopsd/task/2 sr:6afd1b62-1c4f-7898-5511-5cc0969a0da9 vdi:cf5/prov0.root.img superstate:activated RO
Oct 27 21:19:57 xen27 xenopsd-xenlight: [xenops] Device.Vbd.add (device_number=Xen(1, 0) | params=rbd:cf5/prov0.root.img | phystype=phys)
Oct 27 21:19:57 xen27 xenopsd-xenlight: [xenops] adding device B0[/local/domain/0/backend/qdisk/0/51728] F0[/local/domain/0/device/vbd/51728] H[/xapi/0/hotplug/qdisk/51728]
Oct 27 21:19:57 xen27 xenopsd-xenlight: [hotplug] Hotplug.wait_for_plug: frontend (domid=0 | kind=vbd | devid=51728); backend (domid=0 | kind=qdisk | devid=51728)
Oct 27 21:19:57 xen27 xenopsd-xenlight: [xenops] Adding watches for: frontend (domid=0 | kind=vbd | devid=51728); backend (domid=0 | kind=qdisk | devid=51728)
Oct 27 21:19:57 xen27 xenopsd-xenlight: [xenops] xenstore watch /local/domain/0/backend/qdisk/0/51728/kthread-pid
Oct 27 21:19:57 xen27 xenopsd-xenlight: [xenops] xenstore watch /local/domain/0/backend/qdisk/0/51728/tapdisk-pid
Oct 27 21:19:57 xen27 xenopsd-xenlight: [xenops] xenstore watch /local/domain/0/backend/qdisk/0/51728/shutdown-done
Oct 27 21:19:57 xen27 xenopsd-xenlight: [xenops] xenstore watch /local/domain/0/backend/qdisk/0/51728/params
Oct 27 21:19:57 xen27 xenopsd-xenlight: [xenops] Watch on backend domid: 0 kind: qdisk -> frontend domid: 0 devid: 51728
Oct 27 21:19:57 xen27 xenopsd-xenlight: [xenops] Unknown device kind: 'qdisk'
Oct 27 21:19:57 xen27 xenopsd-xenlight: [xenops] Watch on backend domid: 0 kind: qdisk -> frontend domid: 0 devid: 51728
Oct 27 21:19:57 xen27 xenopsd-xenlight: [xenops] Unknown device kind: 'qdisk'
Oct 27 21:19:57 xen27 xenopsd-xenlight: [xenops] Watch on backend domid: 0 kind: qdisk -> frontend domid: 0 devid: 51728
Oct 27 21:19:57 xen27 xenopsd-xenlight: [xenops] Unknown device kind: 'qdisk'
Oct 27 21:19:57 xen27 xenopsd-xenlight: [xenops] Watch on backend domid: 0 kind: qdisk -> frontend domid: 0 devid: 51728
Oct 27 21:19:57 xen27 xenopsd-xenlight: [xenops] Unknown device kind: 'qdisk'
Oct 27 21:19:57 xen27 xenopsd-xenlight: [scheduler] Scheduler sleep until 1382926825 (another 27 seconds)
Oct 27 21:19:57 xen27 xenopsd-xenlight: [hotplug] Synchronised ok with hotplug script: frontend (domid=0 | kind=vbd | devid=51728); backend (domid=0 | kind=qdisk | devid=51728)
Oct 27 21:19:57 xen27 xenopsd-xenlight: [hotplug] Checking to see whether /local/domain/0/backend/qdisk/0/51728/hotplug-status
Oct 27 21:19:57 xen27 xenopsd-xenlight: [xenops] Device.Vbd successfully added; device_is_online = true
Oct 27 21:19:57 xen27 xenopsd-xenlight: [xenops] Waiting for /dev/xvdb to appear
Oct 27 21:19:58 xen27 kernel: blkfront: xvdb: barrier: enabled
Oct 27 21:19:58 xen27 xenopsd-xenlight: [bootloader] Bootloader commandline: /usr/bin/pygrub -q /dev/xvdb
Oct 27 21:19:58 xen27 kernel: xvdb: xvdb1 xvdb2
Oct 27 21:19:59 xen27 xenopsd-xenlight: [xenops] xenstore-write /local/domain/0/backend/qdisk/0/51728/online = 0
Oct 27 21:19:59 xen27 xenopsd-xenlight: [xenops] Device.del_device setting backend to Closing
Oct 27 21:19:59 xen27 xenopsd-xenlight: [xenops] Device.Generic.clean_shutdown_wait frontend (domid=0 | kind=vbd | devid=51728); backend (domid=0 | kind=qdisk | devid=51728)
Oct 27 21:19:59 xen27 kernel: vbd vbd-51728: 16 Device in use; refusing to close
Oct 27 21:19:59 xen27 xenopsd-xenlight: [xenops] waiting for backend to close
Oct 27 21:19:59 xen27 kernel: qemu-system-i38[2899]: segfault at 7fac042e4000 ip 00007fac0447b129 sp 00007fffe7028630 error 4 in qemu-system-i386[7fac042ed000+309000]
Oct 27 21:20:01 xen27 CROND[10982]: (root) CMD (/usr/lib64/sa/sa1 1 1)