Re: [Qemu-devel] [PATCH v2 1/1] Add QMP bits for blockdev-snapshot-sync.

[Jes Sorensen <Jes.Sorensen@redhat.com>]

On 04/28/11 16:42, Kevin Wolf wrote:
>>>>> What type of file system is your /tmp? You need to provide full path to
>>>>> >>>> the snapshot file if you don't want it created next to where your qemu
>>>>> >>>> binary is being executed.
>>> >> I think the problem is that this is a temporary file, i.e. unlinked
>>> >> directly after it has been opened. Trying to reopen a deleted file is a
>>> >> bad idea.
>> > 
>> > True, but if /tmp is tmpfs, it isn't possible to open things O_DIRECT,
>> > which could also be the source of the problem here.
> Not really, -snapshot is very clearly the problem here. Note that what's
> failing here is not opening the new snapshot but the old temporary image
> created by -snapshot.

Sorry you are losing me here - why would reopening the old image fail?
And if it fails, why does it have such a bizarre name in Luiz's case?

Jes