Re: [libvirt-users] reboot problem with libxl
I am not sure if this is a libvirt or libxl problem.
It looks as if each running vm has an associated event thread and this
thread calls the libxl_destroy to clean up the rebooting processes.
Possibly these threads should lock to insure synchronization and allow
only one reboot or termination at a time.
I will try to add some diagnostics and run a few more tests.
On 10/31/2014 09:28 AM, Martin Kletzander wrote:
On Fri, Oct 31, 2014 at 08:34:48AM -0400, Alvin Starr wrote:
> I was sort of hoping that is was something simple like setting the
> "do_the_right_thing" flag.
>
>
> The libvirtd kicks out
> 2014-10-31 11:58:57.111+0000: 8741: error : virRegisterNetworkDriver:549
> : driver in virRegisterNetworkDriver must not be NULL
> 2014-10-31 11:59:29.379+0000: 8840: error : virRegisterNetworkDriver:549
> : driver in virRegisterNetworkDriver must not be NULL
> 2014-10-31 12:02:03.419+0000: 14712: error :
> virRegisterNetworkDriver:549 : driver in virRegisterNetworkDriver must
> not be NULL
> 2014-10-31 12:02:20.547+0000: 14712: error : virNetlinkEventCallback:343
> : nl_recv returned with error: No buffer space available
> 2014-10-31 12:02:21.873+0000: 17428: error :
> virRegisterNetworkDriver:549 : driver in virRegisterNetworkDriver must
> not be NULL
> 2014-10-31 12:03:06.721+0000: 17428: error : virNetlinkEventCallback:343
> : nl_recv returned with error: No buffer space available
>
>
> (I deleted the other errors caused by trying to load drivers that don't
> exits).
>
> I reboot 3 systems mirantis_[457]
>
> /var/log/libxl/* kicks out.
> mirantis_4.log:libxl: error:
> libxl_dm.c:1311:libxl__destroy_device_model: Device Model already exited
> mirantis_5.log:libxl: error:
> libxl_dm.c:1311:libxl__destroy_device_model: Device Model already exited
>
> These are more interesting.
>
> I wonder if libxl has a race condition.
>
I'm completely unaware of libxl works, so I can only guess. But this
looks like an error in libxl. Maybe someone else has an idea?
Martin
> On 10/31/2014 02:58 AM, Martin Kletzander wrote:
>> On Thu, Oct 30, 2014 at 01:00:04PM -0400, Alvin Starr wrote:
>>>
>>> If I reboot a single vm through libvirt/libxl the system reboots
>>> normally.
>>> If I have several vm's reboot at the same time then The systems go
>>> into
>>> a paused state and do not reboot.
>>> I then have to kill them via xl and restart them.
>>>
>>
>> Do logs [1] uncover something?
>>
>> Martin
>>
>> [1] http://libvirt.org/logging.html
>
>
> --
> Alvin Starr || voice: (905)513-7688
> Netvel Inc. || Cell: (416)806-0133
> alvin(a)netvel.net ||
>
--
Alvin Starr || voice: (905)513-7688
Netvel Inc. || Cell: (416)806-0133
alvin(a)netvel.net ||