hello 
To better define the problem I launched the test that fails virnetmessagetest with the option VIR_TEST_DEBUG = 1 and attach the result: 

#  VIR_TEST_DEBUG=1 ./virnetmessagetest

TEST: virnetmessagetest
 1) Message Header Encode                                             ... libvirt: XML-RPC error : Unable to encode message header
FAILED
 2) Message Header Decode                                             ... libvirt: XML-RPC error : Unable to decode message length
FAILED
 3) Message Payload Encode                                            ... libvirt: XML-RPC error : Unable to encode message header
FAILED
 4) Message Payload Decode                                            ... libvirt: XML-RPC error : Unable to decode message length
FAILED
 5) Message Payload Stream Encode                                 ... libvirt: XML-RPC error : Unable to encode message header
FAILED


Is there anyone who can give me a hand to solve the problem? 

thanks 
Stefano
---------- Forwarded message ----------
From: Stefano Ricci <sfn.rcc@gmail.com>
Date: 2014-09-23 18:59 GMT+02:00
Subject: Running the test fails virnetmessagetest with libvirt 1.2.8
To: libvir-list@redhat.com


Hello 
I apologize in advance for my English. 
I compiled the new version of libvirt 1.2.8 on an environment Development Linux from Scratch with the following configure:

configure: Configuration summary
configure: =====================
configure:
configure: Drivers
configure:
configure:       Xen: no
configure:      QEMU: yes
configure:       UML: yes
configure:    OpenVZ: no
configure:    VMware: no
configure:      VBox: yes
configure:    XenAPI: no
configure:  xenlight: no
configure:       LXC: no
configure:      PHYP: yes
configure:       ESX: no
configure:   Hyper-V: no
configure: Parallels: no
configure:     Bhyve: no
configure:      Test: yes
configure:    Remote: yes
configure:   Network: yes
configure:  Libvirtd: yes
configure: Interface: yes
configure:   macvtap: yes
configure:  virtport: yes
configure:
configure: Storage Drivers
configure:
configure:      Dir: yes
configure:       FS: no
configure:    NetFS: no
configure:      LVM: yes
configure:    iSCSI: yes
configure:     SCSI: yes
configure:    mpath: yes
configure:     Disk: no
configure:      RBD: no
configure: Sheepdog: no
configure:  Gluster: no
configure:      ZFS: no
configure:
configure: Security Drivers
configure:
configure:  SELinux: yes (/sys/fs/selinux)
configure: AppArmor: no (install profiles: no)
configure:
configure: Driver Loadable Modules
configure:
configure:   dlopen:  -ldl
configure:
configure: Libraries
configure:
configure:   apparmor: no
configure:       attr: yes (CFLAGS='' LIBS='-lattr')
configure:      audit: no
configure:      avahi: no
configure:      blkid: yes (CFLAGS='-I/install/include/blkid -I/install/include/uuid ' LIBS='-L/install/lib -lblkid ')
configure:      capng: no
configure:       curl: no
configure:       dbus: yes (CFLAGS='-I/usr/include/dbus-1.0 -I/usr/lib/dbus-1.0/include ' LIBS='-ldbus-1 ')
configure:       fuse: yes (CFLAGS='-D_FILE_OFFSET_BITS=64 -I/usr/include/fuse ' LIBS='-lfuse -pthread ')
configure:  glusterfs: no
configure:        hal: no
configure:      netcf: no
configure:    numactl: no
configure:  openwsman: no
configure:  pciaccess: yes (CFLAGS='' LIBS='-lpciaccess ')
configure:   readline: yes (CFLAGS='' LIBS='-lreadline')
configure:    sanlock: no
configure:       sasl: yes (CFLAGS='' LIBS='-lsasl2')
configure:    selinux: yes (CFLAGS='' LIBS='-lselinux')
configure:       ssh2: yes (CFLAGS='' LIBS='-lssh2 ')
configure: systemd_daemon: no
configure:       udev: yes (CFLAGS='' LIBS='-ludev ')
configure:       yajl: yes (CFLAGS='' LIBS='-lyajl')
configure:   libxml: -I/usr/include/libxml2  -lxml2
configure:   dlopen: -ldl
configure: openwsman: no
configure:   gnutls:  -lgnutls
configure: firewalld: no
configure:   polkit: no
configure:      xen: no
configure:   xenapi: no
configure: xenlight: no
configure:     pcap: -I/usr/include -L/usr/lib  -lpcap
configure:       nl: -I/usr/include/libnl3  -I/usr/include/libnl3  -lnl-3  -lnl-route-3 -lnl-3
configure:    mscom: no
configure:      xdr:
configure:      rbd: no
configure: pm-utils: yes
configure:
configure: Test suite
configure:
configure:    Coverage: no
configure:   Alloc OOM: no
configure:
configure: Miscellaneous
configure:
configure:             Debug: yes
configure:       Use -Werror: no
configure:     Warning Flags:  -W -Waddress -Waggressive-loop-optimizations -Wall -Warray-bounds -Wattributes -Wbad-function-cast -Wbuiltin-macro-redefined -Wcast-align -Wchar-subscripts -Wclobbered -Wcomment -Wcomments -Wcoverage-mismatch -Wcpp -Wdeprecated-declarations -Wdisabled-optimization -Wdiv-by-zero -Wdouble-promotion -Wempty-body -Wendif-labels -Wextra -Wformat-contains-nul -Wformat-extra-args -Wformat-security -Wformat-y2k -Wformat-zero-length -Wfree-nonheap-object -Wignored-qualifiers -Wimplicit -Wimplicit-function-declaration -Wimplicit-int -Winit-self -Winline -Wint-to-pointer-cast -Winvalid-memory-model -Winvalid-pch -Wjump-misses-init -Wlogical-op -Wmain -Wmaybe-uninitialized -Wmissing-braces -Wmissing-declarations -Wmissing-field-initializers -Wmissing-include-dirs -Wmissing-parameter-type -Wmissing-prototypes -Wmultichar -Wnarrowing -Wnested-externs -Wnonnull -Wnormalized=nfc -Wold-style-declaration -Wold-style-definition -Woverflow -Woverride-init -Wpacked-bitfield-compat -Wparentheses -Wpointer-arith -Wpointer-sign -Wpointer-to-int-cast -Wpragmas -Wreturn-local-addr -Wreturn-type -Wsequence-point -Wshadow -Wsizeof-pointer-memaccess -Wstrict-aliasing -Wstrict-prototypes -Wsuggest-attribute=const -Wsuggest-attribute=format -Wsuggest-attribute=noreturn -Wsuggest-attribute=pure -Wswitch -Wsync-nand -Wtrampolines -Wtrigraphs -Wtype-limits -Wuninitialized -Wunknown-pragmas -Wunused -Wunused-but-set-parameter -Wunused-but-set-variable -Wunused-function -Wunused-label -Wunused-local-typedefs -Wunused-parameter -Wunused-result -Wunused-value -Wunused-variable -Wvarargs -Wvariadic-macros -Wvector-operation-performance -Wvolatile-register-var -Wwrite-strings -fdiagnostics-show-option -funit-at-a-time -Wno-sign-compare -Wjump-misses-init -Wno-format-nonliteral -Wframe-larger-than=4096 -fstack-protector-strong -fexceptions -fasynchronous-unwind-tables -fipa-pure-const -Wno-suggest-attribute=pure -Wno-suggest-attribute=const
configure:            DTrace: no
configure:             numad: no
configure:       XML Catalog: /etc/xml/catalog
configure:       Init script: check
configure: Char device locks: /var/lock
configure:
configure: Developer Tools
configure:
configure: Wireshark dissector: no
configure:
configure: Privileges
configure:
configure:       QEMU: root:root

The compilation finishes without any problems but in the execution of the tests fails virnetmessagetest. 
When i tried using the libvirtd running without any problems but I can not run the Connection with the virsh command virsh -c qemu:///system that returns the following error: 
"Unable to encode message header" 
and the log shows the error: 
"virNetSocketReadWire: 1523: End of file while reading dates: Error of input / output". 
There 's someone who can give me a hand to solve the problem? 

thanks 

Stefano