Xen users - Apr 2010 - blktap2: help please?

Hi guys,

i''ve just installed xen 4.0. Since always blktapctl has never worked on
my dell 1950III. I even posted a bug but so far i can''t use tap:aio or
similar.

I thought that with version 4 this would work, but it didn''t. I still
see syslog errors from blktap version 1.0.0.

Today i wanted to try version 2 I found on the xen/tools source folder.
I compiled the source with make && make install, no problem, but it
seems I also need the kernel driver. I''ve tried both 2.6.31.13 and
2.6.32.11 and none has the config TAP2 option, only the TAP. It depends
on something to be seen? Or maybe is in another version of the kernel?

How can I try blktap2 please...

Thanks,

Aleix

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On Thu, Apr 08, 2010 at 10:30:33PM +0200, Aleix Dorca
wrote:
> Hi guys,
> 
> i''ve just installed xen 4.0. Since always blktapctl has never
worked on
> my dell 1950III. I even posted a bug but so far i can''t use
tap:aio or
> similar.
> 
> I thought that with version 4 this would work, but it didn''t. I
still
> see syslog errors from blktap version 1.0.0.
> 
> Today i wanted to try version 2 I found on the xen/tools source folder.
> I compiled the source with make && make install, no problem, but it
> seems I also need the kernel driver. I''ve tried both 2.6.31.13 and
> 2.6.32.11 and none has the config TAP2 option, only the TAP. It depends
> on something to be seen? Or maybe is in another version of the kernel?
> 
> How can I try blktap2 please...
> 
pvops dom0 2.6.32.11 has blktap2 driver included, and it should work with Xen
4.0.0.
At least Jeremy has been using it with a pvops dom0 kernel and Xen 4.0.0.

-- Pasi


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On Thu, Apr 08, 2010 at 11:48:55PM +0300, Pasi Kärkkäinen
wrote:
> On Thu, Apr 08, 2010 at 10:30:33PM +0200, Aleix Dorca wrote:
> > Hi guys,
> > 
> > i''ve just installed xen 4.0. Since always blktapctl has never
worked on
> > my dell 1950III. I even posted a bug but so far i can''t use
tap:aio or
> > similar.
> > 
> > I thought that with version 4 this would work, but it didn''t.
I still
> > see syslog errors from blktap version 1.0.0.
> > 
> > Today i wanted to try version 2 I found on the xen/tools source
folder.
> > I compiled the source with make && make install, no problem,
but it
> > seems I also need the kernel driver. I''ve tried both
2.6.31.13 and
> > 2.6.32.11 and none has the config TAP2 option, only the TAP. It
depends
> > on something to be seen? Or maybe is in another version of the kernel?
> > 
> > How can I try blktap2 please...
> > 
> 
> pvops dom0 2.6.32.11 has blktap2 driver included, and it should work with
Xen 4.0.0.
> At least Jeremy has been using it with a pvops dom0 kernel and Xen 4.0.0.
> 
I just quickly wrote this wiki page:
http://wiki.xensource.com/xenwiki/blktap2

It''s still far from complete.. 

-- Pasi


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Xen-users mailing list
Xen-users@lists.xensource.com
http://lists.xensource.com/xen-users

> On Thu, Apr 08, 2010 at 10:30:33PM +0200, Aleix Dorca wrote:
> 
>> Hi guys,
>> 
>> 
>> i''ve just installed xen 4.0. Since always blktapctl has never
worked on
>> my dell 1950III. I even posted a bug but so far i can''t use
tap:aio or
>> similar.
>> 
>> 
>> I thought that with version 4 this would work, but it didn''t.
I still
>> see syslog errors from blktap version 1.0.0.
>> 
>> 
>> Today i wanted to try version 2 I found on the xen/tools source folder.
>> I compiled the source with make && make install, no problem,
but it
>> seems I also need the kernel driver. I''ve tried both 2.6.31.13
and
>> 2.6.32.11 and none has the config TAP2 option, only the TAP. It depends
>> on something to be seen? Or maybe is in another version of the kernel?
>> 
>> 
>> How can I try blktap2
>>  please...
> 
> 
> pvops dom0 2.6.32.11 has blktap2 driver included, and it should work with
Xen
> 4.0.0.
> At least Jeremy has been using it with a pvops dom0 kernel and Xen 4.0.0.
> 
> 
> -- Pasi
Thanks Pasi, it worked like a charm... finally I can use tap:aio on my server.
:)

Also thanks for the Wiki page.

Aleix.
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