Xen users - Feb 2007 - udev fails in guest, which seem to lead to getty hanging.

Hi,

  I got a centos guest started on fc6 finally by creating the mkinitrd by hand.
But the thing is centos seem to hang after the services are started properly and
just before the login prompt. I also notice that ''udev'' is
failing at the beginning, which could be why mingetty hangs. I am guessing that
udev is the service that creates the necessary ttys. So is there something I
should do to get udev and the getty to work.

  Thanks in advance.



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I was able to login to the domU using sshd, and found that the problem is caused
by ''nash-hotplug'', which I think came from the initrd.img.

  224 root      25   0  2600  396  208 R 99.3  0.2   2:24.21 nash-hotplug 

  The nash-hotplug is taking 99% of cpu and I think is also the cause for the
udev to fail. Anybody has any ideas?

  Thanks.



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Ok I found that nash-hotplug must be killed before starting udev, and it is
because it is not killed that udev is failing.

 Anyway, I think the problem is with fedora rather than with xen.



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On Fri, Feb 02, 2007 at 04:56:58AM +0530, Ligesh wrote:
> Ok I found that nash-hotplug must be killed before starting udev, 
> and it is because it is not killed that udev is failing.
Seen the same thing here on a fc6-dom0 with sles10, rhel4 and
debian-unstable in domU, nash-hotplug hanging and sucking up a
cpu. Just a fc6-domU behaves as it should, used the fc6-initrd
for all those domU, maybe thats the cause.


Christian

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On Mon, Feb 05, 2007 at 08:24:06PM +0100, Christian Horn
wrote:
> On Fri, Feb 02, 2007 at 04:56:58AM +0530, Ligesh wrote:
> > Ok I found that nash-hotplug must be killed before starting udev, 
> > and it is because it is not killed that udev is failing.
> 
> Seen the same thing here on a fc6-dom0 with sles10, rhel4 and
> debian-unstable in domU, nash-hotplug hanging and sucking up a
> cpu. Just a fc6-domU behaves as it should, used the fc6-initrd
> for all those domU, maybe thats the cause.
> 
 You need to add a kill nash-hotplug inside the init-scripts of the domUs. Or
just handcraft the initrd to not use it or kill it before switching to the
actual kernel.



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Andrea Maurizio Gnerre:
Same thing here, when finally succeded in booting a FC3 domU under FC6.
Solved by replacing the initrd with the one created directly from the
domU instead of using the Fedora kernel-bundled one.

Andrea Gnerre

On 2/5/07, Ligesh <myself@ligesh.com> wrote:
> On Mon, Feb 05, 2007 at 08:24:06PM +0100, Christian Horn wrote:
> > On Fri, Feb 02, 2007 at 04:56:58AM +0530, Ligesh wrote:
> > > Ok I found that nash-hotplug must be killed before starting udev,
> > > and it is because it is not killed that udev is failing.
> >
> > Seen the same thing here on a fc6-dom0 with sles10, rhel4 and
> > debian-unstable in domU, nash-hotplug hanging and sucking up a
> > cpu. Just a fc6-domU behaves as it should, used the fc6-initrd
> > for all those domU, maybe thats the cause.
> >
>
>  You need to add a kill nash-hotplug inside the init-scripts of the domUs.
Or just handcraft the initrd to not use it or kill it before switching to the
actual kernel.
>
>
>
> _______________________________________________
> Xen-users mailing list
> Xen-users@lists.xensource.com
> http://lists.xensource.com/xen-users
>
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