WARNING - OLD ARCHIVES

This is an archived copy of the Xen.org mailing list, which we have preserved to ensure that existing links to archives are not broken. The live archive, which contains the latest emails, can be found at http://lists.xen.org/
   
 
 
Xen 
 
Home Products Support Community News
 
   
 

xen-devel

Re: [Xen-devel] Failure to start xend in Xen 3.4.1 Dom0 ( 2.6.31 pvops)

To: Boris Derzhavets <bderzhavets@xxxxxxxxx>
Subject: Re: [Xen-devel] Failure to start xend in Xen 3.4.1 Dom0 ( 2.6.31 pvops) on top Ubuntu 9.10 Server
From: Pasi Kärkkäinen <pasik@xxxxxx>
Date: Sun, 13 Sep 2009 22:28:11 +0300
Cc: Jeremy Fitzhardinge <jeremy@xxxxxxxx>, "xen-devel@xxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxx>, Keir Fraser <keir.fraser@xxxxxxxxxxxxx>
Delivery-date: Sun, 13 Sep 2009 12:28:36 -0700
Envelope-to: www-data@xxxxxxxxxxxxxxxxxxx
In-reply-to: <533818.78953.qm@xxxxxxxxxxxxxxxxxxxxxxxxxxx>
List-help: <mailto:xen-devel-request@lists.xensource.com?subject=help>
List-id: Xen developer discussion <xen-devel.lists.xensource.com>
List-post: <mailto:xen-devel@lists.xensource.com>
List-subscribe: <http://lists.xensource.com/mailman/listinfo/xen-devel>, <mailto:xen-devel-request@lists.xensource.com?subject=subscribe>
List-unsubscribe: <http://lists.xensource.com/mailman/listinfo/xen-devel>, <mailto:xen-devel-request@lists.xensource.com?subject=unsubscribe>
References: <127400.27829.qm@xxxxxxxxxxxxxxxxxxxxxxxxxxx> <533818.78953.qm@xxxxxxxxxxxxxxxxxxxxxxxxxxx>
Sender: xen-devel-bounces@xxxxxxxxxxxxxxxxxxx
User-agent: Mutt/1.5.13 (2006-08-11)
On Sun, Sep 13, 2009 at 10:38:04AM -0700, Boris Derzhavets wrote:
> 
> 
>     
> 
>     In meantime when loading the most recent 2.6.31 pvops kernel under Xen 
> Unstable  on top of Ubuntu 
> 9.10 Server (alpha 4, apt-get update, apt-get upgrade -> grub 1.97~beta2) i 
> get a message:
>  /proc/xen is already mounted on xenfs ( xenfs is busy)
> what causes daemon xend failure to start. Xen-bus appears not to be activated 
> during Dom0 loading. 
> As usual i added to /etc/fstab before loading Xen Host :-
>     none    /proc/xen     xenfs    defaults    0    0
> 
> as did it on 9.04. Might it be a mistake on 9.10 (or alpha bug) ?

Latest xen-unstable contains code to automatically mount xenfs from xend start.

See: http://xenbits.xen.org/xen-unstable.hg?rev/67201ec9ed79

-- Pasi

> Boris.
> 
>     
>   
> --- On Sat, 9/12/09, Boris Derzhavets <bderzhavets@xxxxxxxxx> wrote:
> 
> From: Boris Derzhavets <bderzhavets@xxxxxxxxx>
> Subject: Re: [Xen-devel] Failure to start xend in Xen 3.4.1 Dom0 ( 2.6.31 
> pvops) on top Ubuntu 9.10 Server
> To: "xen-devel@xxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxx>, "Keir 
> Fraser" <keir.fraser@xxxxxxxxxxxxx>, "Jeremy Fitzhardinge" <jeremy@xxxxxxxx>
> Date: Saturday, September 12, 2009, 12:38 PM
> 
> dmesg log for 2.6.31-rc6 is attached.
> Xen-bus activation entries are present in the log.
> 
> --- On Sat, 9/12/09, Boris Derzhavets <bderzhavets@xxxxxxxxx> wrote:
> 
> From: Boris Derzhavets <bderzhavets@xxxxxxxxx>
> Subject: Re: [Xen-devel] Failure to start xend in Xen 3.4.1 Dom0 ( 2.6.31 
> pvops) on top Ubuntu 9.10 Server
> To: "xen-devel@xxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxx>, "Keir 
> Fraser" <keir.fraser@xxxxxxxxxxxxx>, "Jeremy Fitzhardinge" <jeremy@xxxxxxxx>
> Date: Saturday, September 12, 2009, 11:55 AM
> 
> 
>  One more notice.
> 
> Jeremy's  2.6.31-rc6 kernel just several times caused xend failure to start.
> Actually, 2.6.31-rc6  hadn't  problems with supporting Dom0 on top of Ubuntu 
> 9.10 , i.e. xend started almost every time.
> 2.6.29.6 & 2.6.30.2 xenified kernels also don't have any problems with
> xend startup after loading Dom0.
> It seems to me as issue dependent on kernel supporting Dom0, first time  
> raised up for 2.6.31-rc9.
>    On the other hand 2.6.31 works fine under Xen 3.4.1 on top of Ubuntu 9.04 
> Server.
> 
> Xen port to Ubuntu is done every time via tuning Config.mk to place xen 
> folder under /usr/local/lib/phyton2.6/dist-packages.
> 
> Boris.
> 
> --- On Sat, 9/12/09, Boris Derzhavets <bderzhavets@xxxxxxxxx> wrote:
> 
> From: Boris Derzhavets <bderzhavets@xxxxxxxxx>
> Subject: [Xen-devel] Failure to start xend in Xen 3.4.1 Dom0 ( 2.6.31 pvops) 
> on top Ubuntu 9.10 Server
> To: "xen-devel@xxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxx>, "Keir 
> Fraser" <keir.fraser@xxxxxxxxxxxxx>
> Date: Saturday, September 12, 2009, 10:13 AM
> 
> Suggestion below has been used to load Dom0 via grub entry:
> 
> menuentry "Xen 3.4 / Ubuntu 9.10 kernel 2.6.31" {
> insmod ext2
> set root=(hd0,13)
> multiboot (hd0,13)/xen-3.4.gz
> module (hd0,13)/vmlinuz-2.6.31
> module (hd0,13)/initrd-2.6.31.img
> }
> 
> Dom0
>  was loaded OK.
> However, /etc/init.d/xend start generates xend.log :-
> 
> [2009-09-12 17:57:48 3372] INFO (SrvDaemon:336) Xend changeset: unavailable..
> [2009-09-12 17:57:49 3372] ERROR (SrvDaemon:349) Exception starting xend 
> ((111, 'Connection refused'))
> Traceback (most recent call last):
>   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 
> 949, in instance
>     inst.save()
>   File "/usr/local/lib/python2.6/dist-packages/xen/xend/XendNode.py", line 
> 484, in save
>     self.save_networks()
>   File "/usr/local/lib/python2.6/dist-packages/xen/xend/XendNode.py", line 
> 499, 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 
> 1736, in instance
>     inst.init()
>   File "/usr/local/lib/python2.6/dist-packages/xen/xend/XendDomain.py", line 
> 113, 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()
> Error: (111, 'Connection refused')
> [2009-09-12 17:57:49 3371] INFO (SrvDaemon:220) Xend exited with status 1.
> 
> Boris.
> 
> 
> --- On Fri, 9/11/09, Keir Fraser <keir.fraser@xxxxxxxxxxxxxx> wrote:
> 
> From: Keir Fraser <keir.fraser@xxxxxxxxxxxxx>
> Subject: Re: [Xen-devel] How to build xen.gz with static built-in command 
> line dom0_mem=1024M ?
> To: "Boris Derzhavets" <bderzhavets@xxxxxxxxx>,
>  "xen-devel@xxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxx>
> Date: Friday, September 11, 2009, 7:30 AM
> 
> There is no supported way, as we expect to have a sane bootloader that can
> parse boot args. If youw ant to hack it in, edit the line 'cmdline =
> cmdline_cook(...' in arch/x86/setup.c to read 'cmdline = "my args go here";'
> instead.
> 
>  -- Keir
> 
> On 11/09/2009 10:00, "Boris Derzhavets" <bderzhavets@xxxxxxxxx> wrote:
> 
> > 
> > 
> > 
> > 
>
> 
> 
> 
> _______________________________________________
> Xen-devel mailing list
> Xen-devel@xxxxxxxxxxxxxxxxxxx
> http://lists.xensource.com/xen-devel
> 
> 
> 
> 
> 
>       
> -----Inline Attachment Follows-----
> 
> _______________________________________________
> Xen-devel mailing list
> Xen-devel@xxxxxxxxxxxxxxxxxxx
> http://lists.xensource.com/xen-devel
> 
> 
> 
> 
> 
>       
> -----Inline Attachment Follows-----
> 
> _______________________________________________
> Xen-devel mailing list
> Xen-devel@xxxxxxxxxxxxxxxxxxx
> http://lists.xensource.com/xen-devel
> 
> 
> 
>       
> -----Inline Attachment Follows-----
> 
> _______________________________________________
> Xen-devel mailing list
> Xen-devel@xxxxxxxxxxxxxxxxxxx
> http://lists.xensource.com/xen-devel
> 
> 
> 
>       
> _______________________________________________
> Xen-devel mailing list
> Xen-devel@xxxxxxxxxxxxxxxxxxx
> http://lists.xensource.com/xen-devel


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