Re: Re: Failure to start xend with 2.6.32.15 (c2cb3df04eb3ff68d0de102b2acacc9b8616e659) under Xen 4.0

[Jeremy Fitzhardinge <jeremy@goop.org>]

On 06/08/2010 11:29 AM, Boris Derzhavets wrote:
> root@ServerLLX:/# find  /  -name "libxc" -print
> ./usr/src/xen-4.0.0/tools/libxc
>
> root@ServerLLX:/# cd /dev/xen
> root@ServerLLX:/dev/xen# ls -l
> total 0
> crw-rw---- 1 root root 10, 61 2010-06-08 22:10 gntdev
> root@ServerLLX:/dev/xen#
>
> Seems like  i have  evtchn device missing, regardless in .config :-
>

You should be able to see if its present in the kernel by looking at
/proc/misc, but something still needs to create the /dev nodes.  Usually
this is udev, but libxc goes to special lengths to get this wrong, and
will end up deleting the perfectly good nodes unless you update it.

Keir, have the libxc changes been backported to all the release trees?

    J

>
> CONFIG_XEN_BALLOON=y
> CONFIG_XEN_SCRUB_PAGES=y
> => CONFIG_XEN_DEV_EVTCHN=y
> CONFIG_XEN_BACKEND=y
> CONFIG_XEN_NETDEV_BACKEND=y
> CONFIG_XEN_BLKDEV_BACKEND=y
> CONFIG_XEN_BLKDEV_TAP=y
> CONFIG_XEN_BLKBACK_PAGEMAP=y
> CONFIG_XEN_PCIDEV_BACKEND=y
> CONFIG_XEN_PCIDEV_BACKEND_VPCI=y
>
>
> Boris.
>
>
> --- On *Tue, 6/8/10, Jeremy Fitzhardinge /<jeremy@goop.org>/* wrote:
>
>
>     From: Jeremy Fitzhardinge <jeremy@goop.org>
>     Subject: [Xen-devel] Re: Failure to start xend with 2.6.32.15
>     (c2cb3df04eb3ff68d0de102b2acacc9b8616e659) under Xen 4.0
>     To: "Boris Derzhavets" <bderzhavets@yahoo.com>
>     Cc: xen-devel@lists.xensource.com, "Konrad Rzeszutek Wilk"
>     <konrad.wilk@oracle.com>
>     Date: Tuesday, June 8, 2010, 1:29 PM
>
>     On 06/08/2010 12:57 AM, Boris Derzhavets wrote:
>     > [2010-06-08 11:50:10 4166] ERROR (SrvDaemon:349) Exception starting
>     > xend ((111, 'Connection refused'))
>     > Traceback (most recent call last):
>     >
>
>     Is your libxc uptodate?  Do you have proper gnttab and evtchn
>     entries in
>     /dev/xen?
>
>         J
>
>     >   File
>     >
>     "/usr/local/lib/python2.6/dist-packages/xen/xend/server/SrvDaemon.py",
>     > line 341, in run
>     >     servers = SrvServer.create()
>     >   File
>     >
>     "/usr/local/lib/python2.6/dist-packages/xen/xend/server/SrvServer.py",
>     > line 251, in create
>     >     root.putChild('xend', SrvRoot())
>     >   File
>     > "/usr/local/lib/python2.6/dist-packages/xen/xend/server/SrvRoot.py",
>     > line 40, in __init__
>     >     self.get(name)
>     >   File "/usr/local/lib/python2.6/dist-packages/xen/web/SrvDir.py",
>     > line 84, in get
>     >     val = val.getobj()
>     >   File "/usr/local/lib/python2.6/dist-packages/xen/web/SrvDir.py",
>     > line 52, in getobj
>     >     self.obj = klassobj()
>     >   File
>     > "/usr/local/lib/python2.6/dist-packages/xen/xend/server/SrvNode.py",
>     > line 30, in __init__
>     >     self.xn = XendNode.instance()
>     >   File
>     "/usr/local/lib/python2.6/dist-packages/xen/xend/XendNode.py",
>     > line 1141, in instance
>     >     inst.save()
>     >   File
>     "/usr/local/lib/python2.6/dist-packages/xen/xend/XendNode.py",
>     > line 578, in save
>     >     self.save_networks()
>     >   File
>     "/usr/local/lib/python2.6/dist-packages/xen/xend/XendNode.py",
>     > line 594, in save_networks
>     >     for network_uuid in XendNetwork.get_all()])
>     >   File
>     "/usr/local/lib/python2.6/dist-packages/xen/xend/XendBase.py",
>     > line 102, in get_record
>     >     for key in keys])
>     >   File
>     >
>     "/usr/local/lib/python2.6/dist-packages/xen/xend/XendNetwork.py", line
>     > 196, in get_VIFs
>     >     vms = XendDomain.instance().get_all_vms()
>     >   File
>     > "/usr/local/lib/python2.6/dist-packages/xen/xend/XendDomain.py",
>     line
>     > 1882, in instance
>     >     inst.init()
>     >   File
>     > "/usr/local/lib/python2.6/dist-packages/xen/xend/XendDomain.py",
>     line
>     > 114, in init
>     >     xstransact.Mkdir(XS_VMROOT)
>     >   File
>     >
>     "/usr/local/lib/python2.6/dist-packages/xen/xend/xenstore/xstransact.py",
>     > line 355, in Mkdir
>     >     complete(path, lambda t: t.mkdir(*args))
>     >   File
>     >
>     "/usr/local/lib/python2.6/dist-packages/xen/xend/xenstore/xstransact.py",
>     > line 361, in complete
>     >     t = xstransact(path)
>     >   File
>     >
>     "/usr/local/lib/python2.6/dist-packages/xen/xend/xenstore/xstransact.py",
>     > line 29, in __init__
>     >     self.transaction = xshandle().transaction_start()
>     >   File
>     >
>     "/usr/local/lib/python2.6/dist-packages/xen/xend/xenstore/xsutil.py",
>     > line 18, in xshandle
>     >     xs_handle = xen.lowlevel.xs.xs()
>     >
>     > Boris.
>     > P.S.  2.6.32.10 works fine.
>     >
>     >
>     >
>
>
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