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[Takashi Kajinami <1445443@xxxxxxxxxxxxxxxxxx>]

Xen support was removed from nova some time ago. comment:2 indicates
that the issue was fixed in a different layer so I think we can just
mark this as won't fix.

** Changed in: nova
       Status: Confirmed => Won't Fix

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https://bugs.launchpad.net/bugs/1445443

Title:
  volume access I/O error with libvirt-xen and iscsi

Status in OpenStack Compute (nova):
  Won't Fix

Bug description:
  On a single-node devstack installation, on Ubuntu LTS 14.4, with the
  Xen hypervisor.

  To reproduce:
  nova volume-create --image-id cirros-0.3.2-x86_64-uec --display-name vol-cirros 1
  nova boot --key-name `hostname` --block-device source=volume,id=$volume_id,dest=volume,bootindex=0,shutdown=preserve --image '' --flavor 42 cirros

  The instance cirros does not finish to boot, and `nova console-log
  cirros` shows "I/O error" while accessing the block device.

  console-log:
  info: copying initramfs to /dev/xvda
  [   79.327661] end_request: I/O error, dev xvda, sector 2
  [   79.327678] Buffer I/O error on device xvda, logical block 1
  [   79.327686] lost page write due to I/O error on xvda
  [   79.327728] EXT3-fs (xvda): I/O error while writing superblock
  [  160.463559] end_request: I/O error, dev xvda, sector 25154
  [...]

  Another way to reproduce would be to use `nova volume-attach` instead
  of the --block-device option of nova boot.

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