135233df26
When creating a node in QEMU's namespace the whole link chain is created with it. Here, we use g_file_read_link() from the child (running inside the namespace) to learn whether a link exists and points to expected target. Now, when building the namespace there can't be any symlinks and this g_file_read_link() returns NULL always. And because we pass a local GError variable to it, glib tries to set it to a localized error message. This comes with creating a (static) hash table inside of g_strerror() and is guarded with a mutex. The hash table is also allocated using GSlice allocator instead of g_malloc, and since the latter is safe to use after fork (because it's documented to use plain malloc), glib went with the former, naturally. Now, GSlice allocator has plenty of internal mutexes and thus hitting a locked mutex is not that hard. Fortunately, we don't care about any error from g_file_read_link() and thus we can pass NULL which avoids calling g_strerror(). Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=2120965 Signed-off-by: Michal Privoznik <mprivozn@redhat.com> Reviewed-by: Jiri Denemark <jdenemar@redhat.com> |
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| examples | ||
| include | ||
| po | ||
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| src | ||
| tests | ||
| tools | ||
| .ctags | ||
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| AUTHORS.rst.in | ||
| config.h | ||
| configmake.h.in | ||
| CONTRIBUTING.rst | ||
| COPYING | ||
| COPYING.LESSER | ||
| gitdm.config | ||
| libvirt-admin.pc.in | ||
| libvirt-lxc.pc.in | ||
| libvirt-qemu.pc.in | ||
| libvirt.pc.in | ||
| libvirt.spec.in | ||
| meson_options.txt | ||
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| NEWS.rst | ||
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| run.in | ||
Libvirt API for virtualization
Libvirt provides a portable, long term stable C API for managing the virtualization technologies provided by many operating systems. It includes support for QEMU, KVM, Xen, LXC, bhyve, Virtuozzo, VMware vCenter and ESX, VMware Desktop, Hyper-V, VirtualBox and the POWER Hypervisor.
For some of these hypervisors, it provides a stateful management daemon which runs on the virtualization host allowing access to the API both by non-privileged local users and remote users.
Layered packages provide bindings of the libvirt C API into other languages including Python, Perl, PHP, Go, Java, OCaml, as well as mappings into object systems such as GObject, CIM and SNMP.
Further information about the libvirt project can be found on the website:
License
The libvirt C API is distributed under the terms of GNU Lesser General Public License, version 2.1 (or later). Some parts of the code that are not part of the C library may have the more restrictive GNU General Public License, version 2.0 (or later). See the files COPYING.LESSER and COPYING for full license terms & conditions.
Installation
Instructions on building and installing libvirt can be found on the website:
https://libvirt.org/compiling.html
Contributing
The libvirt project welcomes contributions in many ways. For most components the best way to contribute is to send patches to the primary development mailing list. Further guidance on this can be found on the website:
https://libvirt.org/contribute.html
Contact
The libvirt project has two primary mailing lists:
- libvirt-users@redhat.com (for user discussions)
- libvir-list@redhat.com (for development only)
Further details on contacting the project are available on the website: