[pve-devel] Problems creating live snapshot

[datanom.net]

On 2017-06-07 08:52, Fabian Grünbichler wrote:
> 
> this could easily be tested by adding a sleep or udev trigger udev
> settle sequence into QemuConfig's __snapshot_create_vol_snapshots_hook,
> inside the before branch before calling savevm-start (line 185 in
> current master).
> 
This was not the problem.

But I have found the reason anyway.
savevm-start calls the path function of the storage which in case 
returns a means for savevm-start to access the vm state disk which is 
all as should be. However, I have discovered that savevm-start does not 
call the storage function activate_volume neither prior nor after the 
call to the function path. This leads to the following questions:
1) Should a call to path in a storage plugin always implicitly have the 
storage plugin activate the volume?
2) Should savevm-start call the storage plugins function activate_volume 
before or after calling path?

-- 
Hilsen/Regards
Michael Rasmussen

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