Hi Boris et al,
I can confirm this problem. Same setup ( KV 2.6.32.15, Ubuntu 10.04
server). evtchn is built-in, not a module. I manually tried to create
the device node (mknod /dev/xen/evtchn c 10 62) but xenstored didn't
like that and after the failed start of xenstored /dev/xen/evtchn
disappeard again. Is there a quick fix or should I downgrade?
cheers
Paul
------ info ----------
root@two-new /usr/src # ls -l /dev/xen/
total 0
crw-rw---- 1 root root 10, 55 2010-06-08 21:21 gntdev
root@two-new /usr/src # cat /proc/misc
55 xen/gntdev
56 network_throughput
57 network_latency
58 cpu_dma_latency
59 device-mapper
1 psaux
200 tun
60 pktcdvd
228 hpet
61 blktap-control
62 xen/evtchn
229 fuse
227 mcelog
63 vga_arbiter
------ info ----------
Am 08.06.2010 22:02, schrieb Boris Derzhavets:
Reproduced on top of F13 Xen 4.0 Dom0
[root@fedora13 ~]# cd /dev/xen
[root@fedora13 xen]# ls -l
total 0
crw-rw---- 1 root root 10, 61 Jun 8 23:56 gntdev
[root@fedora13 xen]# udevd -V
151
[root@fedora13 xen]# cat /proc/misc
229 fuse
223 uinput
130 watchdog
184 microcode
56 network_throughput
57 network_latency
58 cpu_dma_latency
59 device-mapper
144 nvram
228 hpet
60 blktap-control
61 xen/gntdev
62 xen/evtchn
231 snapshot
227 mcelog
63 vga_arbiter
Boris.
--- On Tue, 6/8/10, Jeremy Fitzhardinge<jeremy@xxxxxxxx> wrote:
From: Jeremy Fitzhardinge<jeremy@xxxxxxxx>
Subject: Re: [Xen-devel] Re: Failure to start xend with 2.6.32.15
(c2cb3df04eb3ff68d0de102b2acacc9b8616e659) under Xen 4.0
To: "Boris Derzhavets"<bderzhavets@xxxxxxxxx>
Cc: "Bastian Blank"<waldi@xxxxxxxxxx>, xen-devel@xxxxxxxxxxxxxxxxxxx, "Keir
Fraser"<keir.fraser@xxxxxxxxxxxxx>, "Konrad Rzeszutek Wilk"<konrad.wilk@xxxxxxxxxx>
Date: Tuesday, June 8, 2010, 3:15 PM
On 06/08/2010 12:13 PM, Boris Derzhavets wrote:
Yes it's the kernel, but no device created under /dev/xen (in case
2.6.32.15 been loaded ) :-
root@ServerLLX:~# cd /dev/xen
root@ServerLLX:/dev/xen# ls -l
total 0
crw-rw---- 1 root root 10, 61 2010-06-08 23:08 gntdev
What distro? Perhaps there's something wrong with the udev setup?
J
root@ServerLLX:/dev/xen# cat /proc/misc
56 network_throughput
57 network_latency
58 cpu_dma_latency
59 device-mapper
144 nvram
228 hpet
60 blktap-control
=> 61 xen/gntdev
=>62 xen/evtchn
231 snapshot
227 mcelog
63 vga_arbiter
Boris
--- On *Tue, 6/8/10, Jeremy Fitzhardinge /<jeremy@xxxxxxxx>/* wrote:
From: Jeremy Fitzhardinge<jeremy@xxxxxxxx>
Subject: Re: [Xen-devel] Re: Failure to start xend with 2.6.32.15
(c2cb3df04eb3ff68d0de102b2acacc9b8616e659) under Xen 4.0
To: "Boris Derzhavets"<bderzhavets@xxxxxxxxx>
Cc: xen-devel@xxxxxxxxxxxxxxxxxxx, "Keir Fraser"
<keir.fraser@xxxxxxxxxxxxx>, "Konrad Rzeszutek Wilk"
<konrad.wilk@xxxxxxxxxx>
Date: Tuesday, June 8, 2010, 2:50 PM
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@xxxxxxxx
</mc/compose?to=jeremy@xxxxxxxx>>/* wrote:
>
>
> From: Jeremy Fitzhardinge<jeremy@xxxxxxxx
</mc/compose?to=jeremy@xxxxxxxx>>
> Subject: [Xen-devel] Re: Failure to start xend with 2.6.32.15
> (c2cb3df04eb3ff68d0de102b2acacc9b8616e659) under Xen 4.0
> To: "Boris Derzhavets"<bderzhavets@xxxxxxxxx
</mc/compose?to=bderzhavets@xxxxxxxxx>>
> Cc: xen-devel@xxxxxxxxxxxxxxxxxxx
</mc/compose?to=xen-devel@xxxxxxxxxxxxxxxxxxx>, "Konrad Rzeszutek
Wilk"
> <konrad.wilk@xxxxxxxxxx</mc/compose?to=konrad.wilk@xxxxxxxxxx>>
> 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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