Re: [Xen-users] Re: Xen 4.0 on gentoo hotplug scripts problem?

[Andrew Lyon <andrew.lyon@xxxxxxxxx>]

On Fri, Apr 9, 2010 at 9:15 AM, Andrew Lyon <andrew.lyon@xxxxxxxxx> wrote:
> On Fri, Apr 9, 2010 at 9:10 AM, Pasi Kärkkäinen <pasik@xxxxxx> wrote:
>> On Fri, Apr 09, 2010 at 08:45:44AM +0100, Andrew Lyon wrote:
>>> On Thu, Apr 8, 2010 at 10:20 PM, Pasi Kärkkäinen <pasik@xxxxxx> wrote:
>>> > On Thu, Apr 08, 2010 at 02:14:17PM -0700, Boris Derzhavets wrote:
>>> >>    I believe profile should look like
>>> >>
>>> >>    memory=512
>>> >>    name='Gentoo-32-test'
>>> >>    vif=['bridge=eth(x)']
>>> >>    bootloader='/usr/bin/pygrub'
>>> >>    disk=['file:/mnt/tb1_store/Xen
>>> >>    VMs/Gentoo-32/Gentoo-32.sda1,xvda,w','phy:/dev/test/test,xvdb ,w']
>>> >>    extra='gentoo=nodevfs console=xvc0'
>>> >>
>>> >>    It's PV domU , so xvda,xvda,.....
>>> >>
>>> >>    Blktap driver is not important, no "tap:aio"
>>> >>
>>> >
>>> > Also I think Xen 4.0.0 needs to have "disk = [ 
>>> > "tap:tapdisk:aio:/path/images/disk.img,xvda,w" ]" to use blktap2.
>>>
>>> I tried that syntax but it does not work:
>>>
>>> name='Gentoo-32-test'
>>> vif=['bridge=eth0']
>>> bootloader='/usr/bin/pygrub'
>>> disk=[ "tap:tapdisk:aio:/mnt/tb1_store/Xen 
>>> VMs/Gentoo-32/Gentoo-32.sda1,xvda,w"]
>>> extra='gentoo=nodevfs console=xvc0'
>>>
>>> Using config file "./Gentoo-32-test.cfg".
>>> Error: [Errno 2] No such file or directory: 'aio:/mnt/tb1_store/Xen
>>> VMs/Gentoo-32/Gentoo-32.sda1'
>>>
>>
>> Hmm.. that's weird. The blktap2 syntax is correct based on the latest 
>> blktap2 README here:
>> http://lxr.xensource.com/lxr/source/tools/blktap2/README
>>
>>> I changed the config back to file:/ and tried again, the xm create
>>> process seemed to hang and the block script was stuck:
>>>
>>
>> Ok, so you have some general problem, not really blktap2 related..
>>
>>>
>>> root     14152  0.0  0.0  17596  1572 ?        S<   08:43   0:00
>>> /bin/bash /etc/xen/scripts/block add
>>>
>>> eventually it errors  Error: Device 51712 (vbd) could not be
>>> connected. /etc/xen/scripts/block failed; error detected.
>>>
>>> And the remove script is also stuck:
>>>
>>> /bin/bash /etc/xen/scripts/block remove
>>>
>>
>> Did you install Xen 4.0.0 over some old version?
>>
>> Did you remove the old version first? Maybe your 4.0.0 is not 
>> completely/properly installed..
>
> I will try removing Xen first, including all of /etc/xen/
>
> Andy
>
>>
>> Pasi
>>
>>
>

I think you are onto something, after completely removing Xen I cannot
compile 4.0:

Wl,-O1          -L../../tools/libxc -lxenctrl    -L../../tools/libxc
-lxenctrl          -o libvhd.so.1.0.0 -luuid libvhd.o libvhd-journal.o
vhd-util-coalesce.o vhd-util-create.o vhd-util-fill.o
vhd-util-modify.o vhd-util-query.o vhd-util-read.o vhd-util-repair.o
vhd-util-resize.o vhd-util-revert.o vhd-util-set-field.o
vhd-util-snapshot.o vhd-util-scan.o vhd-util-check.o relative-path.o
atomicio.o ../../lvm/lvm-util.o
/usr/lib/gcc/x86_64-pc-linux-gnu/4.3.4/../../../../x86_64-pc-linux-gnu/bin/ld:
cannot find -lxenctrl
collect2: ld returned 1 exit status
make[6]: *** [libvhd.a] Error 1
make[6]: Leaving directory
`/var/tmp/portage/app-emulation/xen-tools-4.0.0/work/xen-4.0.0/tools/blktap2/vhd/lib'
make[5]: *** [subdir-all-lib] Error 2

Which makes me think that some part of 4.0 was compiled against 3.4.2...

Andy

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