[libvirt-users] domain has active block job

[Fiorenza Meini]

Il 13/01/2015 16:56, Kashyap Chamarthy ha scritto:
> On Tue, Jan 13, 2015 at 08:49:53AM -0700, Eric Blake wrote:
>> On 01/13/2015 07:21 AM, Kashyap Chamarthy wrote:
>
> [. . .]
>
>>> Seems like you're hitting an old bug[1] where 'blockcopy' (or
>>> 'blockcommit') missed to execute a cleanup routine which destroys a
>>> reference to the active block operation -- resulting in the error you're
>>> seeing when you attempted to 'abort' the block operation manually.
>>>
>>> This bug is fixed in libvirt-1.2.8 and above. I see you're using
>>> libvirt-1.2.7, if you can update libvirt in your environment, that
>>> should fix your issue.
>>
>> Are you using a pre-built distro libvirt?  If so, which one?  We should
>> figure out how to get that vendor to backport the right fix for this issue.
>>
>> Also, I just now committed another related fix; so even the latest
>> 1.2.11 release has an issue where libvirt can get into weird states if
>> parallel block job attempts are made.  See commit e1125ce.
>>
>>> [1] https://bugzilla.redhat.com/show_bug.cgi?id=1135169 -- blockcopy job
>>> was cancel by "CTRL+C" while it show there still be one block job in
>>> background
>>
>> That was against RHEL 7; but I don't know if any Fedora releases suffer
>> from the same issue.
>
> Right, I looked for a Fedora bug before referring to it. Even the
> libvirt master git history refers to this bug with the fixed commit:
>
>    commit 8e23e0e977fbcc4a7880e187a63c509d6e6879c6
>    Author: Erik Skultety <eskultet at redhat.com>
>    Date:   Thu Nov 27 13:29:42 2014 +0100
>
>        qemu: fix block{commit,copy} abort handling
>
>        When a block{commit,copy} job was aborted on a domain, block job handler
>        did not process it correctly, leaving a phantom job in the background.
>        Any further calls to any blockjob causes "block <jobtype> still active"
>        error. This patch fixes the blockjob handler so that it checks not only
>        for VIR_DOMAIN_BLOCK_JOB_FAILED status, but VIR_DOMAIN_BLOCK_JOB_CANCELED
>        status as well, followed by our existing cleanup routine.
>
>        Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1135169
>
>        Signed-off-by: Jiri Denemark <jdenemar at redhat.com>
>

I'm working on Debian Wheezy, upgrading to 1.29 libvirt version libvirtd 
service doesn't start any more, so at the moment it isn't upgradable....

Regards

Fiorenza Meini

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