host: centos-6.5 kernel: 3.13.2-4.el6.x86_64 guest: fedora20 since libvirt-1.2.2 i can not shutdown this domain. works fine with libvirt-1.2.1 # virsh shutdown fedora2 error: Failed to shutdown domain fedora2 error: Mount namespaces are not available on this platform: Function not implemented from the logfile: 14478: error : virProcessRunInMountNamespace:982 : Mount namespaces are not available on this platform: Function not implemented the buildhost for the rpm is a centos-6.5 system with kernel 3.1.8 (dont ask! its a vserver system) and the test for "setns" failed configure:9592: checking for setns configure:9592: gcc -std=gnu99 -o conftest -g -O2 conftest.c >&5 /tmp/cchlir6v.o: In function `main': /builddir/build/BUILD/libvirt-1.2.2/conftest.c:184: undefined reference to `setns' collect2: ld returned 1 exit status setns() was added in glibc-2.14 centos6 has glibc-2.12 attached is a fix for this problem. stolen from: http://cgit.freedesktop.org/systemd/systemd/commit/src/shared/missing.h?id=3... /stephan -- Software is like sex, it's better when it's free!