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[Xen-users] xl create bug on first-attempt with passthrough

  • To: xen-users@xxxxxxxxxxxxx
  • From: Casey DeLorme <cdelorme@xxxxxxxxx>
  • Date: Fri, 21 Sep 2012 13:49:05 -0400
  • Delivery-date: Fri, 21 Sep 2012 17:49:48 +0000
  • List-id: Xen user discussion <xen-users.lists.xen.org>


I recently swapped some components, and rebuilt my system.

Changes to the configuration:

- Wheezy Beta 1  >  Wheezy Beta 2
- Kernel 3.4.9   >  Kernel 3.4.11

I have tested the new Xen 4.2 stable, and Xen unstable revision 25777, both are giving me the same error so I do not believe it is related to a change in Xen.

The first attempt to pass a PCI device after booting the system gives me these messages (on "xl create"):

libxl: error: libxl_dom.c:557:libxl__build_hvm: hvm building failed
libxl: error: libxl_create.c:901:domcreate_rebuild_done: cannot (re-)build domain: -3
libxl: error: libxl_dm.c:1239:libxl__destroy_device_model: could not find device-model's pid for dom 1
libxl: error: libxl.c:1427:libxl__destroy_domid: libxl__destroy_device_model failed for 1

The baffling part is that all subsequent attempts are successful.  So if I rerun "xl create" it works, and I can do it as many times as I want.  If I reboot then I get the error again.

Any ideas what the cause could be?


~Casey DeLorme
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