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Re: [Xen-devel] tap:aio problem on Xen 3.4.3-rc7-pre

To: Fantu <fantonifabio@xxxxxxxxxx>, "xen-devel@xxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxx>
Subject: Re: [Xen-devel] tap:aio problem on Xen 3.4.3-rc7-pre
From: Keir Fraser <keir.fraser@xxxxxxxxxxxxx>
Date: Wed, 12 May 2010 15:02:12 +0100
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In a previous message you said your logs contained "BLKTAPCTRL[2795]:
blktapctrl_linux.c:92: couldn't find device number for 'blktap0'". This
indicates the tools looked for blktap0 information in
/sys/class/xen/blktap0/dev and /sys/class/misc/blktap0/dev and found it in
neither place. Which would indicate something is missing or wrong with the
dom0 kernel setup. Xen and tools should not need rebuilding to fix this.

 -- Keir

On 12/05/2010 14:23, "Fantu" <fantonifabio@xxxxxxxxxx> wrote:

> thanks for aswer, module blktap is active, what i do for build/install from
> tags? now i do only hg clone, and for update xen installed i must do make
> uninstall and after make install...?
> for this install i have do only:
> make xen
> make tools
> make stubdom
> make install-xen
> make install-tools
> make install-stubdom
> is ok?
> and if i make uninstall delete also any kernel from package with "xen" in
> name but not pv_ops installed with xen (without "xen" in name)
> this is the config of debian kernel used, there are config how do problem?
> http://old.nabble.com/file/p28535906/config-2.6.32-5-xen-amd64
> config-2.6.32-5-xen-amd64
> Keir Fraser-3 wrote:
>> More likely a misconfigured dom0 kernel. It would be easy to check whether
>> it works with xen-3.4.3-rc6, or tip of 3.4-testing with the QEMU_TAG added
>> back in...
>>  -- Keir
>> On 12/05/2010 13:23, "Mike Viau" <viaum@xxxxxxxxxxxxxxx> wrote:
>>> Could it have something to do with QEMU...
>>> Because I noticed:
>>> -QEMU_TAG := xen-3.4.3-rc6
>>> -
>>> Without a new QEMU_TAG being added.
>>> http://xenbits.xensource.com/xen-3.4-testing.hg?diff/269e0c52dc3f/Config.mk
>>> 30 days of prizes to be won with Hotmail.  Enter here
>>> <http://go.microsoft.com/?linkid=9729703>
>> _______________________________________________
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