Re: [Xen-users] 64-bit PV domU (2.6.27) hangs during boot?

["Todd Deshane" <deshantm@xxxxxxxxx>]

> [    0.669545] device-mapper: ioctl: 4.14.0-ioctl (2008-04-23) initialised: 
> dm-devel@xxxxxxxxxx
> Done.
> Begin: Running /scripts/init-premount ...
> Done.
> Begin: Mounting root file system... ...
> Begin: Running /scripts/local-top ...
> Done.
> Begin: Waiting for root file system... ...
> Done.
>  Reading all physical volumes.  This may take a while...
> Begin: Waiting for root file system... ...
> Done.
>  Reading all physical volumes.  This may take a while...
> <<and so on...>>
>

Did you wait for this to finish? or does it hang?
It may take awhile, but it should drop you to a busybox shell.

Then you can double check things like
/proc/cmdline
/proc/modules
/dev/xvd*


> http://wiki.xensource.com/xenwiki/XenParavirtOps says to use xvd devices,

xvd devices are right, and seem right in your gues config

so I'm doing that, as well as using tap:aio.  'xm block-list' on the
domain gives me:

>

> Vdev  BE handle state evt-ch ring-ref BE-path
> 51713  0    0     1      -1     -1    /local/domain/0/backend/tap/30/51713
> 51714  0    0     1      -1     -1    /local/domain/0/backend/tap/30/51714
>
> I wish I understood more about what this output means, but the event channel 
> ID of -1 for these devices doesn't seem like a good sign.
>

It doesn't but they are not connected it seems...

> Could it be that something's missing from the initramfs I'm using?  I had 
> thought that the Ubuntu intrepid stuff was ready to go as a 64-bit domU.
>

This could be your problem, and likely is. I doubt the intrepid stuff
is that ready to go, they are still in alpha.

The stuff from kernel.org has been working well from me,so you should
double check that they built the initramfs
 correctly.

I would check the config in /boot/ for the kernel that you are using
to see how the XEN, PARA, HVC, stuff was built.

Below are those config options in the 2.27-rc4 kernel from kernel.org
that I have been using successfully.

CONFIG_XEN=y
CONFIG_XEN_MAX_DOMAIN_MEMORY=32
CONFIG_XEN_SAVE_RESTORE=y
CONFIG_XEN_BLKDEV_FRONTEND=y
CONFIG_NETXEN_NIC=m
CONFIG_XEN_NETDEV_FRONTEND=y
CONFIG_XEN_KBDDEV_FRONTEND=y
CONFIG_HVC_XEN=y
CONFIG_XEN_FBDEV_FRONTEND=y
CONFIG_XEN_BALLOON=y
CONFIG_XEN_SCRUB_PAGES=y

CONFIG_PARAVIRT_GUEST=y
CONFIG_PARAVIRT=y
CONFIG_PARAVIRT_CLOCK=y
CONFIG_PARAVIRT_DEBUG=y

CONFIG_HVC_DRIVER=y
CONFIG_HVC_IRQ=y
CONFIG_HVC_XEN=y


Hope that helps,
Cheers,
Todd

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

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