Xen users - Oct 2014 - xen 4.5-unstable, oxenstored cannot start (centos 7, kernel 3.17.0)

Hello.

I'm running CentOS 7 with mainline kernel 3.17 built by myself.
I've configured the kernel with all the xen parameters as
builtin instead of modules. Yesterday I've decided to try to
build and install Xen from sources. I've pulled the latest
sources from git, changed the branch to staging and built
and installed xen like this:

make xen
make tools
make stubdom
sudo make install-xen
sudo make install-tools
sudo make install-stubdom

Xen installed and I got xen-4.5-unstable.gz in the /boot.

I have to say that I'm using PXE boot to boot CentOS. Bridged
networking and nfs rootfs works great thanks to Dracut.
I booted xen with PXE boot. It was not a problem.
xl dmesg shows usual xen boot log.

But. The oxenstored is not starting.
Simple sudo xl list just hangs. I looked at the
/var/log/messages and found there some bad looking messages.
I don't know if they are connected somehow but here they
are:

1. xenstored.service and xenconsoled.service

Oct  9 02:03:05 kvmxen-centos7-test1-nb systemd-cgroups-agent: Failed to
get D-Bus connection: Failed to connect to socket /run/systemd/private: No
such file or directory
Oct  9 02:03:05 kvmxen-centos7-test1-nb systemd: systemd 208 running in
system mode. (+PAM +LIBWRAP +AUDIT +SELINUX +IMA +SYSVINIT +LIBCRYPTSETUP
+GCRYPT +ACL +XZ)
Oct  9 02:03:05 kvmxen-centos7-test1-nb systemd: Detected virtualization
'xen'.
Oct  9 02:03:05 kvmxen-centos7-test1-nb systemd: Set hostname to
<kvmxen-centos7-test1-nb>.
Oct  9 02:03:05 kvmxen-centos7-test1-nb systemd: Failed to open private bus
connection: Failed to connect to socket /var/run/dbus/system_bus_socket: No
such file or directory
Oct  9 02:03:05 kvmxen-centos7-test1-nb systemd:
[/etc/rc.d/init.d/xencommons:10] Failed to add LSB Provides name
xenstored.service, ignoring: File exists
Oct  9 02:03:05 kvmxen-centos7-test1-nb systemd:
[/etc/rc.d/init.d/xencommons:10] Failed to add LSB Provides name
xenconsoled.service, ignoring: File exists

2. modules

Oct  9 02:03:05 kvmxen-centos7-test1-nb systemd-modules-load: Failed to
find module 'evtchn'
Oct  9 02:03:05 kvmxen-centos7-test1-nb systemd-modules-load: Failed to
find module 'gntdev'
Oct  9 02:03:05 kvmxen-centos7-test1-nb systemd-modules-load: Failed to
find module 'netbk'
Oct  9 02:03:05 kvmxen-centos7-test1-nb systemd-modules-load: Failed to
find module 'blkbk'
Oct  9 02:03:05 kvmxen-centos7-test1-nb systemd-modules-load: Failed to
find module 'xen-scsibk'
Oct  9 02:03:05 kvmxen-centos7-test1-nb systemd-modules-load: Failed to
find module 'usbbk'
Oct  9 02:03:05 kvmxen-centos7-test1-nb systemd-modules-load: Failed to
find module 'pciback'
Oct  9 02:03:05 kvmxen-centos7-test1-nb systemd-modules-load: Module
'xen_acpi_processor' is builtin
Oct  9 02:03:05 kvmxen-centos7-test1-nb systemd-modules-load: Failed to
find module 'blktap2'
Oct  9 02:03:05 kvmxen-centos7-test1-nb systemd-modules-load: Failed to
find module 'blktap'
Oct  9 02:03:05 kvmxen-centos7-test1-nb systemd: Started Apply Kernel
Variables.
Oct  9 02:03:05 kvmxen-centos7-test1-nb systemd:
systemd-modules-load.service: main process exited, code=exited,
status=1/FAILURE
Oct  9 02:03:05 kvmxen-centos7-test1-nb kernel: Installing knfsd (copyright
(C) 1996 okir@monad.swb.de).
Oct  9 02:03:05 kvmxen-centos7-test1-nb systemd: Failed to start Load
Kernel Modules.
Oct  9 02:03:05 kvmxen-centos7-test1-nb systemd: Unit
systemd-modules-load.service entered failed state.

3. oxenstored

Oct  9 02:03:12 kvmxen-centos7-test1-nb xencommons: Starting
/usr/local/sbin/oxenstored...Fatal error: exception
Failure("ocaml_sd_listen_fds() failed to get any sockets")

4. xencommons

Oct  9 02:03:43 kvmxen-centos7-test1-nb xencommons:
..............................
Oct  9 02:03:43 kvmxen-centos7-test1-nb xencommons: Could not start
xenstored
Oct  9 02:03:43 kvmxen-centos7-test1-nb systemd: xencommons.service:
control process exited, code=exited status=1
Oct  9 02:03:43 kvmxen-centos7-test1-nb systemd: Failed to start LSB:
Start/stop xenstored and xenconsoled.
Oct  9 02:03:43 kvmxen-centos7-test1-nb systemd: Unit xencommons.service
entered failed state.


What can cause these problems? I don't understand yet where to dig..

Thank you,
Grigory.



-- 
Best regards,
Grigory Ptashko

+7 (916) 1489766
grigory.ptashko@gmail.com
skype grigory_ptashko
linkedin.com/in/gptashko <http://ru.linkedin.com/in/gptashko/>
facebook.com/GrigoryPtashko <https://www.facebook.com/GrigoryPtashko>


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