<div dir="ltr"><div>Hi,<br></div><br><div>I built and installed Xen 4.5.0 from source, on top of Ubuntu 14.04.2, using "make
world" and "make install" targets. I then installed latest virt-manager from pre-built packages.
After bringing up virt-manager I attempt to connect to Xen hypervisor
and got:<br><br> unable to connect to libvirt<br> Failed to connect socket to /var/run/libvirt/libvirt-sock' No such file or directory<br><br></div><div>I then noticed libvirt-bin isn't running. If
I try to issue 'service libvirt-bin start' it gives me back a process
number, but it apparently dies quickly because the service still shows as down.
Three log files are touched during my start attempt:<br><br> -rw-r--r-- 1 root root 39757 Feb 27 06:00 /var/log/xenstored-access.log<br> -rw-r--r-- 1 root root 44908 Feb 27 06:00 /var/log/libvirt/libxl/libxl-driver.log<br> -rw------- 1 root root 46396 Feb 27 06:00 /var/log/libvirt/libvirtd.log<br><br></div><div>*
xenstored-access.log has 22 new entries, grouped into pairs that
increment an "Axx" identifier and go from A63 to A73. Here is the A63
logs:<br><br> [20150227T11:00:29.478Z] A63 newconn<br> [20150227T11:00:29.479Z] A63 endconn<br><br></div><div>* libxl-driver.log also has 11 log groupings that are just the same set of logs repeated 11 times. Here is the first group:<br><br> xc: detail: sysctl operation failed -- need to rebuild the user-space tool set?<br> libxl: error: libxl.c:4320:libxl_get_physinfo: getting physinfo: Permission denied<br> xc: debug: hypercall buffer: total allocations:7 total releases:7<br> xc: debug: hypercall buffer: current allocations:0 maximum allocations:1<br> xc: debug: hypercall buffer: cache current size:1<br> xc: debug: hypercall buffer: cache hits:6 misses:1 toobig:0<br><br></div><div>* libvirtd.log also has 11 log groupings, that are just the same set of logs repeated 11 times. Here is that group:<br><br> 2015-02-27 11:00:29.479+0000: 4842: info : libvirt version: 1.2.2<br>
2015-02-27 11:00:29.479+0000: 4842: error : libxlDriverConfigNew:1131 :
Unable to configure libxl's memory management parameters<br>
2015-02-27 11:00:29.479+0000: 4842: error : virStateInitialize:749 :
Initialization of LIBXL state driver failed: Unknown problem<br> 2015-02-27 11:00:29.479+0000: 4842: error : daemonRunStateInit:920 : Driver state initialization failed<br><br></div>When
I google for libxl_get_physinfo I see other reported errors during "xl
info" and other "xl" commands. I tried "xl info" and that works for
me and does not alter the log files:<br><br>root@<server>:~# xl info<br>host : server<br>release : 3.13.0-46-generic<br>version : #75-Ubuntu SMP Tue Feb 10 15:24:04 UTC 2015<br>machine : x86_64<br>nr_cpus : 8<br>max_cpu_id : 7<br>nr_nodes : 2<br>cores_per_socket : 4<br>threads_per_core : 1<br>cpu_mhz : 2400<br>hw_caps : bfebfbff:2c100800:00000000:00003f00:17bee3ff:00000000:00000001:00000000<br>virt_caps : hvm hvm_directio<br>total_memory : 98168<br>free_memory : 128<br>sharing_freed_memory : 0<br>sharing_used_memory : 0<br>outstanding_claims : 0<br>free_cpus : 0<br>xen_major : 4<br>xen_minor : 5<br>xen_extra : .0<br>xen_version : 4.5.0<br>xen_caps : xen-3.0-x86_64 xen-3.0-x86_32p hvm-3.0-x86_32 hvm-3.0-x86_32p hvm-3.0-x86_64 <br>xen_scheduler : credit<br>xen_pagesize : 4096<br>platform_params : virt_start=0xffff800000000000<br>xen_changeset : Mon Jan 12 11:30:05 2015 -0500 git:a8ac229<br>xen_commandline : placeholder<br>cc_compiler : gcc (Ubuntu 4.8.2-19ubuntu1) 4.8.2<br>cc_compile_by : root<br>cc_compile_domain : <a href="http://cisco.com" target="_blank">cisco.com</a><br>cc_compile_date : Thu Feb 19 07:26:00 EST 2015<br>xend_config_format : 4<br>root@<server>:~# <br><br><div>After consulting with xen-users mailer, I was given this response by "Ian": <br><br>"<span class="im"></span>Did you install libvirt from source or from packages? If the latter then you may have a disconnect between the packaged version and your source-built Xen. You'll probably need to rebuild libvirt against your Xen libraries."<br></div><div><br></div><div>What are the virt-related steps to take to test out Ian's idea? I have root access to one machine that serves both as a host to VM's as well as a build environment for source builds such as this. I already built xen 4.5.0 and installed it. Do I now need to separately download and build libvirt, then download and build virt-manager? Is it important to place the virt* code within the xen source tree, or do something else so that the virt* code compiles "against" an appropriate xen environment? <br><br>In summary, I would like some guidance on how to build libvirt, and if needed, virt-manager, source against a specific Xen version.<br><br></div><div>Thanks,<br></div>Wayne</div>