[libvirt] [PATCH] snapshot: use correct qmp monitor command

Eric Blake eblake at redhat.com
Tue Oct 11 22:53:22 UTC 2011


On 10/10/2011 11:53 PM, Daniel Veillard wrote:
> On Mon, Oct 10, 2011 at 03:35:42PM -0600, Eric Blake wrote:
>> To date, disk snapshots worked by accident, as they were always
>> using hmp fallback due to a typo in commit e702b5b not picking up
>> on the (intentional) difference in command names between the two
>> monitor protocols.
>>
>> * src/qemu/qemu_monitor_json.c (qemuMonitorJSONDiskSnapshot):
>> Spell QMP command correctly.
>> Reported by Luiz Capitulino.

>> -        VIR_DEBUG("snapshot-blkdev-sync command not found, trying HMP");
>> +        VIR_DEBUG("blockdev-snapshot-sync command not found, trying HMP");
>>           ret = qemuMonitorTextDiskSnapshot(mon, device, file);
>>           goto cleanup;
>>       }
>
>    Whoops :-) ACK !

Pushed.

I still need to test what happens when both QMP and HMP commands are 
missing, to make sure libvirt issues a sane error message (yesterday, I 
attempted to fake this with gdb to cause a failure, and got the dreaded 
'unknown error' message, but think I botched my test, so I'll feel 
better once I repeat the test with a real qemu rather than gdb).

-- 
Eric Blake   eblake at redhat.com    +1-801-349-2682
Libvirt virtualization library http://libvirt.org




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