Re: [Xen-devel] can't start domU

[Steve Dobbelstein <steved@xxxxxxxxxx>]

Ewan Mellor <ewan@xxxxxxxxxxxxx> wrote on 11/16/2005 12:45:39 PM:

> On Wed, Nov 16, 2005 at 11:19:12AM -0600, Steve Dobbelstein wrote:
>
> > I'm not sure how to tell if /sbin/udevsend binary gets run.
>
> mv /sbin/udevsend{,.real}
> cat >/sbin/udevsend
> #!/bin/sh
> echo "udevsend running" >>/var/log/udev.log
> exec /sbin/udevsend.real
> ^D
>
> ought to do it.

Of course.  My duh.  I have been scratching my head over this and
scrambling it with python code that I forgot the obvious.

> I think that it's clear that the whole hotplug
> subsystem isn't
> running in your case, so I wouldn't worry about it.

/var/log/udesend.log says:
--------
Wed Nov 16 16:54:21 CST 2005 udevsend net
Wed Nov 16 16:57:22 CST 2005 udevsend xen-backend
Wed Nov 16 16:57:22 CST 2005 udevsend xen-backend
--------

Looks like hotplug is initiated, but perhaps not for the vif stuff.

> > [root@gir scripts]# PYTHONPATH=/usr/lib/python python
> > /usr/lib/python/xen/util/diagnose.py 4
> > Domain ID is 4.
> > Domain name is dom1.
> > Found 1 device classes in use.
> > Found 2 vbd devices.
> > Found device vbd, 2049.
> > Backend is in state Connected.
> > Frontend is in state Connected.
> > Device vbd, 2049 hotplugging has completed successfully, and is
connected
> > to physical device 0xfd01.
> > Found device vbd, 2050.
> > Backend is in state Connected.
> > Frontend is in state Connected.
> > Device vbd, 2050 hotplugging has completed successfully, and is
connected
> > to physical device 0xfd00.
>
> This suggests that the tools have not even got as far as trying to create
a
> vif for you.  Are you getting the "Device 0 (vif) could not be connected.
> Hotplug scripts not working." message, same as Charles Coffing?  That
really
> would be very curious.  In any case, your config file ought to be causing
Xend
> to at least try to create a vif.  I will need to see your
/var/log/xend.log to
> pin this down, and if you can get a xenstore trace, that will be useful
too.

I had seen the "Device 0 (vif) could not be connected. Hotplug scripts not
working." message on occasion in the past.  It's not doing it now.

Here are some helpful debug files.

(See attached file: xend.log)(See attached file: xend.trace.gz)(See
attached file: xend-debug.log)(See attached file: xenstored-trace.log.gz)

I'm afraid this is going to end up being some user error because something
got changed elsewhere on the system, but I can't figure out what.  The
machine used to not exhibit the problem with build 7713.  I upgraded the
machine to a later build (can't remember which offhand) and saw the
problem.  I then backed down to 7713 but still saw the problem.  It has
been doing it on every build since then.  I have tried cleaning everything
out (make uninstall, rm -rf /etc/xen, etc.) and rebuilding and
reinstalling.  I am beginning to suspect something outside of Xen is
causing it to trip up.

Thanks a lot for your help.

Steve D.

Attachment: xend.log
Description: Binary data

Attachment: xend.trace.gz
Description: Binary data

Attachment: xend-debug.log
Description: Binary data

Attachment: xenstored-trace.log.gz
Description: Binary data

_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-devel