Re: [Xen-users] BUG? domU reboot fails when using "pci =" option

[list user <xktnniuymlla@xxxxxxxxxxxxxx>]

list user wrote:
> Hi all,
>
> I believe I've found a bug.
>
> Running xen-3.0.2-2 with linux-2.6.16 built from sources.
>
> Domain-0 has one hidden PCI slot:  pciback.hide=(00:0d.0)
>
> It is exposed in a domU with pci = ['00:0d.0'].
>
> If that domU is shutdown with xm destroy, or with a shutdown -h now, all
> works as expected.  But if instead it is rebooted, either by xm reboot
> or shutdown -r now, it shuts down, attempts to restart and fails
> silently.  This is evidenced by the fact that an xm list has used up one
> increment on its domU counter.  At that point a manual start works.
>
> Now, if the pci device is NOT enabled in the domU config file, reboot
> works correctly.
>
> Checking xend.log provides a clue:
>
>   dev_config referenced before assignment in
>                         /usr/lib/xen/xend/server/pciif.py
>
> Not really a python coder but it looks like the invocation in question
> is on line 97, which indicates that whole section of code may be borked,
> since it now thinks it's xen-2.0.
Additional info.

If xend and xendomains are set to run automatically at boot time via 
chkconfig the same error occurs, but ONLY when the pci device has been 
exported to a domU.  An "xm list" starts at domid 2, showing that one 
domU has failed at startup.
Again, the error is familiar, but this time displays on the domain-0 
console:
  local variable dev_config referenced before assignment

:m)

> Hope that's helpful to someone.
>
> Mike Wright
>
>
>
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