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.
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Michal Privoznik a54391fbc2 remote_daemon: Don't run virStateCleanup() if virStateReload() is still running
When a SIGHUP is received a thread is spawned that runs
virStateReload(). However, if SIGINT is received while the former
thread is still running then we may get into problematic
situation: the cleanup code in main() sees drivers initialized
and thus calls virStateCleanup(). So now we have two threads, one
running virStateReload() the other virStateCleanup(). In this
situation it's very likely that a race condition occurs and
either of threads causes SIGSEGV.

To fix this, unmark drivers as initialized in the
virStateReload() thread for the time the function runs.

Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=2075837
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Martin Kletzander <mkletzan@redhat.com>
2022-05-23 14:44:50 +02:00
.ctags.d maint: Add support for .ctags.d 2019-05-31 17:54:28 +02:00
.github/workflows Switch to new GitHub repo-lockdown configuration 2021-10-20 14:27:20 +01:00
.gitlab/issue_templates docs: bugs: Remove raw HTML anchor 'quality' 2022-04-25 16:33:01 +02:00
build-aux syntax-check: Introduce sc_linguas_sorting 2022-05-23 13:58:29 +02:00
ci ci: Add a Fedora integration test job utilizing upstream QEMU 2022-05-12 11:12:26 +02:00
docs docs: document <graphics> type dbus 2022-05-19 12:36:42 +02:00
examples examples: drop some conditionals checks from macros 2022-01-17 10:44:33 +00:00
include lib: Rename VIR_SAVE_PARAM_* to VIR_DOMAIN_SAVE_PARAM_* 2022-05-12 11:00:08 +02:00
po po: Sort LINGUAS 2022-05-23 13:58:28 +02:00
scripts apibuild: Fix self.waring method call 2022-05-09 14:44:36 +02:00
src remote_daemon: Don't run virStateCleanup() if virStateReload() is still running 2022-05-23 14:44:50 +02:00
tests qemu: add usbredir type 'dbus' 2022-05-19 12:36:40 +02:00
tools virsh: report the D-Bus bus URI for domdisplay 2022-05-19 12:36:24 +02:00
.ctags
.dir-locals.el
.editorconfig Add .editorconfig 2019-09-06 12:47:46 +02:00
.gitattributes Add .gitattributes file 2022-03-17 14:33:12 +01:00
.gitignore gitignore: Ignore __pycache__ directory 2021-03-22 12:05:11 +01:00
.gitlab-ci.yml ci: Move codestyle job to openSUSE Leap 15.3 2022-04-14 17:59:33 +02:00
.gitmodules gnulib: delete all gnulib integration 2020-02-07 15:03:54 +00:00
.gitpublish gitpublish: add a subject prefix 2020-01-16 13:04:11 +00:00
.mailmap mailmap: consolidate my email addresses 2020-10-06 12:05:09 +02:00
AUTHORS.rst.in AUTHORS: change my (Nikolay Shirokovskiy) email 2022-04-06 11:00:53 +03:00
config.h configure: bump min required CLang to 6.0 / XCode 10.0 2022-01-17 10:44:29 +00:00
configmake.h.in meson: generate configmake.h 2020-08-03 09:26:48 +02:00
CONTRIBUTING.rst meson: adjust our documentation to mention meson instead of autoconf 2020-08-03 09:27:09 +02:00
COPYING
COPYING.LESSER
gitdm.config gitdm: add 'ibm' file 2019-10-18 17:32:52 +02:00
libvirt-admin.pc.in
libvirt-lxc.pc.in
libvirt-qemu.pc.in
libvirt.pc.in
libvirt.spec.in spec: Move virkey* manual pages from -daemon to -client 2022-03-17 14:45:51 +01:00
meson_options.txt meson: Introduce qemu_datadir option 2021-11-18 15:48:59 +01:00
meson.build meson: Drop support for -Wl,-M 2022-05-06 11:12:50 +02:00
mingw-libvirt.spec.in rpm: fix mingw obsoletes lines 2021-08-02 13:47:20 +01:00
NEWS.rst docs: document <graphics> type dbus 2022-05-19 12:36:42 +02:00
README.rst README: drop Travis CI badge 2020-08-03 15:08:28 +02:00
run.in run: gracefully handle SIGHUP, SIGQUIT, SIGTERM 2022-03-10 08:06:12 +00:00

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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:

https://libvirt.org

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:

Further details on contacting the project are available on the website:

https://libvirt.org/contact.html