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Re: [Xen-users] BLKTAP limit in Dom0, can't boot with pygrub


  • To: "Jim Cipar" <jcipar@xxxxxxx>
  • From: "Todd Deshane" <deshantm@xxxxxxxxx>
  • Date: Mon, 1 Sep 2008 12:24:02 -0400
  • Cc: xen-users@xxxxxxxxxxxxxxxxxxx
  • Delivery-date: Mon, 01 Sep 2008 09:24:36 -0700
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  • List-id: Xen user discussion <xen-users.lists.xensource.com>

> Could it be that there is a limit of 16 blktap devices in Dom0 and they're
> not being cleaned up properly after pygrub uses them?  It looks like they
> are.  In the log file, after pygrub returns it says "Unmounting /dev/xvdp
> from /dev/xvdp".
>
There shouldn't be a limit, but maybe some version of Xen/Linux had one.

What version of Xen/LInux are you using?

Are you stuck at that version of Xen/Linux or can you use a newer version?

I've had more 16 guest running on Ubuntu 8.04 + Xen from packages.

I'll be running some scalability tests on Xen 3.3 + Linux 2.6.27 soon,
so feel free to ping me for the results if they would be useful to you.

Cheers,
Todd

-- 
Todd Deshane
http://todddeshane.net
check out our book: http://runningxen.com

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