[Xen-devel] Re: "Hotplug Scripts not working ..." error on jaunty

[Dulloor <dulloor@xxxxxxxxx>]

- udev version is 141 (udevadm info -V)

- There is only a /etc/udev directory. It had two files : xend.rules
and xen-backend.rules. Removing them didn't help.

- I use pvops kernel. And, I use - make install-xen and make
install-tools PYTHON_PREFIX_ARG=""

- Following is the output from "udevadm monitor" :
KERNEL[1255816932.742809] add      /devices/vbd-22-2049 (xen-backend)
KERNEL[1255816932.768878] add      /devices/vbd-22-2050 (xen-backend)
KERNEL[1255816932.786000] add      /devices/vbd-22-2051 (xen-backend)
KERNEL[1255816932.817227] add      /devices/vif-22-0 (xen-backend)
UDEV  [1255816932.818643] add      /devices/vif-22-0 (xen-backend)
KERNEL[1255816933.008654] add      /devices/console-22-0 (xen-backend)
UDEV  [1255816933.009916] add      /devices/console-22-0 (xen-backend)
UDEV  [1255816933.657785] add      /devices/vbd-22-2049 (xen-backend)
UDEV  [1255816934.707977] add      /devices/vbd-22-2050 (xen-backend)
UDEV  [1255816935.761811] add      /devices/vbd-22-2051 (xen-backend)
KERNEL[1255817033.248057] remove   /devices/console-22-0 (xen-backend)
------------- ****After the error****
UDEV  [1255817033.334001] remove   /devices/console-22-0 (xen-backend)

-dulloor


On Sat, Oct 17, 2009 at 4:04 PM, Marc - A. Dahlhaus <mad@xxxxxx> wrote:
> Hello,
>
> Dulloor schrieb:
>>
>> I see that these patches made it to xen-unstable, but I still see the
>> "Hotplug Scripts not working ..." error on my jaunty dom0 machine.
>
> The patches only fixed the build-time and installation-time detection of
>  udev to work with version above of 124.
>
> Have no jaunty based box around here to get some impressions of what goes
> wrong in this setup.
>
> Could you check what udev version it has and if /etc/hotplug and/or
> /etc/udev contains xen related stuff?
>
> As udev is in charge of hotplug events on jaunty a
> "udevadm monitor" might get you some further details on what events are
> generated.
>
>> I am trying to run a simple para-VM. xend starts fine (had to build
>> tools with PYTHON_PREFIX_ARG set to ""). And, I tried
>> xen-hotplug-cleanup too, but still getting the error.
>>
>> Any ideas ?
>
> Check what files get installed in /etc/udev and /etc/hotplug during
> installation. If you find anything xen related in /etc/hotplug remove it and
> check if that fixes your problem.
>
> It would be interesting to know how you install xen...
>
> Marc
>
>> -dulloor
>>
>> On Sat, Jun 27, 2009 at 4:02 PM, Marc - A. Dahlhaus <mad@xxxxxx> wrote:
>>>
>>> Hello Boris,
>>>
>>> as the problem you are describing is unrelated to the patch (which
>>> changes
>>> the detection of udev during buildtime only),
>>> can you please change the subject line to something more appropriate and
>>> give some additional details about the problem?
>>>
>>>
>>> Marc
>>>
>>> Boris Derzhavets schrieb:
>>>>
>>>> By some reasons i have to run  on regular basis run
>>>> ./xen-hotplug-cleanup
>>>> on two Xen 3.4.1 on top of Ubuntu 9.04 Servers patched systems to
>>>> re-enable ability start DomUs without hotplug scripts failure.
>>>>
>>>> Boris.
>>>>
>>>> --- On *Fri, 6/26/09, Marc - A. Dahlhaus [ Administration | Westermann
>>>> GmbH ] /<mad@xxxxxx>/* wrote:
>>>>
>>>>
>>>>   From: Marc - A. Dahlhaus [ Administration | Westermann GmbH ]
>>>>   <mad@xxxxxx>
>>>>   Subject: Re: [Xen-devel] [PATCH] Fix buildsystem to detect udev >
>>>>   version 124
>>>>   To: "Boris Derzhavets" <bderzhavets@xxxxxxxxx>
>>>>   Cc: "Xen-devel" <xen-devel@xxxxxxxxxxxxxxxxxxx>, "Keir Fraser"
>>>>   <keir.fraser@xxxxxxxxxxxxx>
>>>>   Date: Friday, June 26, 2009, 5:12 AM
>>>>
>>>>   Could go into 3.4 and unstable IMO.
>>>>
>>>>   On 3.3 there is no tools/hotplug/Linux/Makefile so it must be altered
>>>>   there to use tools/examples/Makefile for the first chunk and
>>>>   should work
>>>>   fine there.
>>>>
>>>>
>>>>   Marc
>>>>
>>>>   Am Donnerstag, den 25.06.2009, 20:03 -0700 schrieb Boris Derzhavets:
>>>>   > Where this patch is supposed to go either xen-unstable.hg or
>>>>   > xen-3.4-testing.hg (both) ?
>>>>   > Systems affected Ubuntu 9.04 (now) , F12 (pretty soon).
>>>>   >
>>>>   > Boris
>>>>   >
>>>>   > --- On Wed, 6/24/09, Marc - A. Dahlhaus [ Administration |
>>>>   Westermann
>>>>   > GmbH ] <mad@xxxxxx </mc/compose?to=mad@xxxxxx>> wrote:
>>>>   >            >         From: Marc - A. Dahlhaus [ Administration |
>>>> Westermann
>>>>   GmbH ]
>>>>   >         <mad@xxxxxx </mc/compose?to=mad@xxxxxx>>
>>>>   >         Subject: [Xen-devel] [PATCH] Fix buildsystem to detect
>>>>   udev >
>>>>   >         version 124
>>>>   >         To: "Xen-devel" <xen-devel@xxxxxxxxxxxxxxxxxxx
>>>>   </mc/compose?to=xen-devel@xxxxxxxxxxxxxxxxxxx>>
>>>>   >         Cc: "Daniel Schroeder" <sec@xxxxxxxxxxxxxxx
>>>>   </mc/compose?to=sec@xxxxxxxxxxxxxxx>>, "Keir Fraser"
>>>>   >         <keir.fraser@xxxxxxxxxxxxx
>>>>   </mc/compose?to=keir.fraser@xxxxxxxxxxxxx>>
>>>>   >         Date: Wednesday, June 24, 2009, 12:26 PM
>>>>   >            >         udev removed the udevinfo symlink from versions
>>>> higher than
>>>>   >         123 and xens
>>>>   >         build-system could not detect if udev is in place and
>>>>   has the
>>>>   >         required
>>>>   >         version. Attached patch fixes this.
>>>>   >            >            >         Signed-off-by: Marc-A. Dahlhaus
>>>> <mad@xxxxxx
>>>>   </mc/compose?to=mad@xxxxxx>>
>>>>   >            >            >            >            >
>>>> -----Inline Attachment Follows-----
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>>>>   >            >
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>>>>
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