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[Qemu-devel] device_del id missing after blockdev-add
From: |
William Dauchy |
Subject: |
[Qemu-devel] device_del id missing after blockdev-add |
Date: |
Mon, 17 Feb 2014 16:36:42 +0100 |
User-agent: |
Mutt/1.5.21 (2010-09-15) |
Hello,
I'm starting qemu with the following config in order to test drive
hotremove and hotadd:
[drive "disk1"]
if = "none"
id = "disk1"
cache = "none"
aio = "native"
format = "raw"
file = "/dev/sda"
[device "disk1"]
driver = "scsi-hd"
drive = "disk1"
scsi-id = "1"
removable = "on"
vendor = "gandi.net"
dpofua = "off"
I'm now testing device removable without any problem:
(QEMU) device_del id=disk1
{ u'return': { }}
(QEMU)
{u'timestamp': {u'seconds': 1392645815, u'microseconds': 484557}, u'data':
{u'device': u'disk1', u'path': u'/machine/peripheral/disk1'}, u'event':
u'DEVICE_DELETED'}
then, I want to readd the disk, without anyproblem too (with the same
id):
{ "execute": "blockdev-add", "arguments": {'options' : {'driver': 'raw',
'id':'disk1', 'file': {'driver': 'file', 'filename': '/dev/sda'}}} }
{ "device_add", "arguments": {'driver':'scsi-hd', 'drive':'disk1', 'scsi-i':1,
'removable':on} }
The issue is when I want to hot remove the disk again:
(QEMU) device_del id=disk1
{ u'error': { u'class': u'DeviceNotFound',
u'desc': u"Device 'disk1' not found"}}
the output of query-block is the same everywhere:
{ u'device': u'disk1',
u'inserted': { u'backing_file_depth': 0,
u'bps': 0,
u'bps_rd': 0,
u'bps_wr': 0,
u'drv': u'raw',
u'encrypted': False,
u'encryption_key_missing': False,
u'file': u'/dev/sda',
u'image': { u'actual-size': 0,
u'dirty-flag': False,
u'filename': u'/dev/sda',
u'format': u'raw',
u'virtual-size':
3221225472},
u'iops': 0,
u'iops_rd': 0,
u'iops_wr': 0,
u'ro': False},
u'io-status': u'ok',
u'locked': False,
u'removable': True,
u'tray_open': False,
u'type': u'unknown'}]}
I guess blockdev-add is not storing the device details as it's done when
using the configuration file, i.e, id is not stored correctly when using
blockdev-add.
Should I consider this as a bug or I wait for the merge of blockdev-del
and ignore device_del command? In all cases I guess device_del should
work in this case too.
these tests were done using the last version available on the git repo
(using master branch)
Regards,
--
William
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