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Re: [Xen-users] ENC: Failed to insert 'xen_evtchn': No such device

Hello Olaf: 
I got the problem: 
*xencall: error: Could not obtain handle on privileged command interface: No
such file or directory
libxl: error: libxl.c:108:libxl_ctx_alloc: cannot open libxc handle: No such
file or directory
cannot init xl context*

And then, I try 
systemctl enable xen-qemu-dom0-disk-backend.service
systemctl enable xen-init-dom0.service
systemctl enable xenconsoled.service
systemctl enable xendomains.service
systemctl enable xen-watchdog.service
After do this, I reboot. However the problem is still remain.  

There are more information about the problem.
The host system is CentOS7 with Linux kernel 3.18. After I compiled xen from
source. There are a new list 
*CentOS Linux, with Xen hypervisor
CentOS Linux (3.18.44-20.el7.x86_64) 7 (Core)
CentOS Linux (0-rescue-47fa7ee3dc7b49d2a27c9be137f2d5e6) 7 (Core)*

If I boot system from the first option, the screen shows:
Loading Linux 3.18.44-20.el7.x86_64...
Loading initial ramdisk...
Then, no system was booted. So the above problem occurs, after I boot to
CentOS Linux (3.18.44-20.el7.x86_64) 7 (Core)

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