[Xen-API] Resizing VDI with Local Caching enabled

[Marco Sinhoreli <msinhore@xxxxxxxxx>]

Hello all:

I'm trying resize a VDI cloned from a gold-image. I'm using storage
local caching in my tests. After resize, the virtual machine isn't
booting. Bellow the exception:


<output>
[root@server ~]# vdi=$(xe vbd-list
vm-uuid=fa537d17-1b07-b472-74c7-67b2a2f5561f device=xvda
params=vdi-uuid --minimal)
[root@server ~]# xe vdi-resize uuid=$vdi disk-size=40GiB
[root@server ~]# echo $?
0
[root@server ~]# xe vm-start  uuid=fa537d17-1b07-b472-74c7-67b2a2f5561f
There was an SR backend failure.
status: non-zero exit
stdout:
stderr: Traceback (most recent call last):
  File "/opt/xensource/sm/NFSSR", line 253, in ?
    SRCommand.run(NFSSR, DRIVER_INFO)
  File "/opt/xensource/sm/SRCommand.py", line 246, in run
    ret = cmd.run(sr)
  File "/opt/xensource/sm/SRCommand.py", line 94, in run
    return self._run_locked(sr)
  File "/opt/xensource/sm/SRCommand.py", line 131, in _run_locked
    return self._run(sr, target)
  File "/opt/xensource/sm/SRCommand.py", line 183, in _run
    caching_params)
  File "/opt/xensource/sm/blktap2.py", line 1280, in activate
    if self._activate_locked(sr_uuid, vdi_uuid, caching_params):
  File "/opt/xensource/sm/blktap2.py", line 29, in wrapper
    ret = op(self, *args)
  File "/opt/xensource/sm/blktap2.py", line 1312, in _activate_locked
    dev_path = self._activate(sr_uuid, vdi_uuid, caching_params)
  File "/opt/xensource/sm/blktap2.py", line 1326, in _activate
    dev_path = self.setup_cache(sr_uuid, vdi_uuid, caching_params)
  File "/opt/xensource/sm/blktap2.py", line 1468, in setup_cache
    local_sr_uuid, scratch_mode)
  File "/opt/xensource/sm/blktap2.py", line 1550, in _setup_cache
    standby=scratch_mode)
  File "/opt/xensource/sm/blktap2.py", line 711, in launch_on_tap
    raise TapdiskFailed(cls.Arg(_type, path), ctl)
blktap2.TapdiskFailed:
Tapdisk(vhd:/var/run/sr-mount/01cbd019-bd89-1296-a4bf-fd9d412f64f4/05732396-9466-4828-9926-2217a10a18c9.vhdcache):
['/usr/sbin/tap-ctl', 'open', '-p', '21483', '-m', '3', '-a',
'vhd:/var/run/sr-mount/01cbd019-bd89-1296-a4bf-fd9d412f64f4/05732396-9466-4828-9926-2217a10a18c9.vhdcache',
'-e', '0', '-2',
'vhd:/var/run/sr-mount/b5631d2b-7931-c93c-39da-5a20978e823b/05732396-9466-4828-9926-2217a10a18c9.vhd']
failed: status=22, pid=21485, errmsg=
</output>

Is it a bug or could I have done something not permitted?

Thoughts?


Cheers!

-- 
Marco Sinhoreli

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