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3aae99fe71
https://bugzilla.redhat.com/show_bug.cgi?id=1406837 Imagine you have a domain configured in such way that you are assigning two PCI devices that fall into the same IOMMU group. With mount namespace enabled what happens is that for the first PCI device corresponding /dev/vfio/X entry is created and when the code tries to do the same for the second mknod() fails as /dev/vfio/X already exists: 2016-12-21 14:40:45.648+0000: 24681: error : qemuProcessReportLogError:1792 : internal error: Process exited prior to exec: libvirt: QEMU Driver error : Failed to make device /var/run/libvirt/qemu/windoze.dev//vfio/22: File exists Worse, by default there are some devices that are created in the namespace regardless of domain configuration (e.g. /dev/null, /dev/urandom, etc.). If one of them is set as backend for some guest device (e.g. rng, chardev, etc.) it's the same story as described above. Weirdly, in attach code this is already handled. Signed-off-by: Michal Privoznik <mprivozn@redhat.com> |
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| .gnulib@e210a3cbae | ||
| build-aux | ||
| daemon | ||
| docs | ||
| examples | ||
| gnulib | ||
| include/libvirt | ||
| m4 | ||
| po | ||
| src | ||
| tests | ||
| tools | ||
| .ctags | ||
| .dir-locals.el | ||
| .gitignore | ||
| .gitmodules | ||
| .mailmap | ||
| AUTHORS.in | ||
| autobuild.sh | ||
| autogen.sh | ||
| bootstrap | ||
| bootstrap.conf | ||
| cfg.mk | ||
| ChangeLog-old | ||
| config-post.h | ||
| configure.ac | ||
| COPYING | ||
| COPYING.LESSER | ||
| HACKING | ||
| libvirt-admin.pc.in | ||
| libvirt-lxc.pc.in | ||
| libvirt-qemu.pc.in | ||
| libvirt.pc.in | ||
| libvirt.spec.in | ||
| Makefile.am | ||
| Makefile.nonreentrant | ||
| mingw-libvirt.spec.in | ||
| README | ||
| README-hacking | ||
| run.in | ||
| TODO | ||
LibVirt : simple API for virtualization
Libvirt is a C toolkit to interact with the virtualization capabilities
of recent versions of Linux (and other OSes). It is free software
available under the GNU Lesser General Public License. Virtualization of
the Linux Operating System means the ability to run multiple instances of
Operating Systems concurrently on a single hardware system where the basic
resources are driven by a Linux instance. The library aim at providing
long term stable C API initially for the Xen paravirtualization but
should be able to integrate other virtualization mechanisms if needed.
Daniel Veillard <veillard@redhat.com>