January 2024 - Devel - libvirt List Archives

[PATCH v2] qemu_driver: Don't handle the EOF event if vm get restarted
by tugy＠chinatelecom.cn 03 Jan '24

03 Jan '24

From: Guoyi Tu <tugy(a)chinatelecom.cn> Currently, libvirt creates a thread pool with only on thread to handle all qemu monitor events for virtual machines, In the cases that if the thread gets stuck while handling a monitor EOF event, such as unable to kill the virtual machine process or release resources, the events of other virtual machine will be also blocked, which will lead to the abnormal behavior of other virtual machines. For instance, when another virtual machine completes a shutdown operation and the monitor EOF event has been queued but remains unprocessed, we immediately destroy and start the virtual machine again, at a later time when EOF event get processed, the processMonitorEOFEvent() will kill the virtual machine that just started. To address this issue, in the processMonitorEOFEvent(), we check whether the current virtual machine's id is equal to the the one at the time the event was generated. If they do not match, we immediately return. Signed-off-by: Guoyi Tu <tugy(a)chinatelecom.cn> Signed-off-by: dengpengcheng <dengpc12(a)chinatelecom.cn> --- src/qemu/qemu_domain.c | 2 +- src/qemu/qemu_driver.c | 11 +++++++++-- src/qemu/qemu_process.c | 2 +- 3 files changed, 11 insertions(+), 4 deletions(-) diff --git a/src/qemu/qemu_domain.c b/src/qemu/qemu_domain.c index 953808fcfe..435ee621df 100644 --- a/src/qemu/qemu_domain.c +++ b/src/qemu/qemu_domain.c @@ -11470,7 +11470,6 @@ qemuProcessEventFree(struct qemuProcessEvent *event) case QEMU_PROCESS_EVENT_NETDEV_STREAM_DISCONNECTED: case QEMU_PROCESS_EVENT_NIC_RX_FILTER_CHANGED: case QEMU_PROCESS_EVENT_SERIAL_CHANGED: - case QEMU_PROCESS_EVENT_MONITOR_EOF: case QEMU_PROCESS_EVENT_GUEST_CRASHLOADED: g_free(event->data); break; @@ -11484,6 +11483,7 @@ qemuProcessEventFree(struct qemuProcessEvent *event) case QEMU_PROCESS_EVENT_UNATTENDED_MIGRATION: case QEMU_PROCESS_EVENT_RESET: case QEMU_PROCESS_EVENT_NBDKIT_EXITED: + case QEMU_PROCESS_EVENT_MONITOR_EOF: case QEMU_PROCESS_EVENT_LAST: break; } diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c index 64afae6450..cfc5b79657 100644 --- a/src/qemu/qemu_driver.c +++ b/src/qemu/qemu_driver.c @@ -3854,7 +3854,8 @@ processJobStatusChangeEvent(virDomainObj *vm, static void processMonitorEOFEvent(virQEMUDriver *driver, - virDomainObj *vm) + virDomainObj *vm, + int domid) { qemuDomainObjPrivate *priv = vm->privateData; int eventReason = VIR_DOMAIN_EVENT_STOPPED_SHUTDOWN; @@ -3863,6 +3864,12 @@ processMonitorEOFEvent(virQEMUDriver *driver, unsigned int stopFlags = 0; virObjectEvent *event = NULL; + if (vm->def->id != domid) { + VIR_ERROR("Domain %s was restarted, ignoring EOF", + vm->def->name); + return; + } + if (qemuProcessBeginStopJob(vm, VIR_JOB_DESTROY, true) < 0) return; @@ -4082,7 +4089,7 @@ static void qemuProcessEventHandler(void *data, void *opaque) processJobStatusChangeEvent(vm, processEvent->data); break; case QEMU_PROCESS_EVENT_MONITOR_EOF: - processMonitorEOFEvent(driver, vm); + processMonitorEOFEvent(driver, vm, GPOINTER_TO_INT(processEvent->data)); break; case QEMU_PROCESS_EVENT_PR_DISCONNECT: processPRDisconnectEvent(vm); diff --git a/src/qemu/qemu_process.c b/src/qemu/qemu_process.c index fc05b4b24f..696d526a5d 100644 --- a/src/qemu/qemu_process.c +++ b/src/qemu/qemu_process.c @@ -316,7 +316,7 @@ qemuProcessHandleMonitorEOF(qemuMonitor *mon, } qemuProcessEventSubmit(vm, QEMU_PROCESS_EVENT_MONITOR_EOF, - 0, 0, NULL); + 0, 0, GINT_TO_POINTER(vm->def->id)); /* We don't want this EOF handler to be called over and over while the * thread is waiting for a job. -- 2.17.1

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[PATCH] Fix regression on default bus for keyboard/mouse from c4bc4d3b #577
by Jonathan Wright 03 Jan '24

03 Jan '24

Signed-off-by: Jonathan Wright <jonathan(a)almalinux.org> --- src/conf/domain_postparse.c | 1 + 1 file changed, 1 insertion(+) diff --git a/src/conf/domain_postparse.c b/src/conf/domain_postparse.c index e79913b73f..ee27023f3e 100644 --- a/src/conf/domain_postparse.c +++ b/src/conf/domain_postparse.c @@ -657,6 +657,7 @@ virDomainInputDefPostParse(virDomainInputDef *input, if ((input->type == VIR_DOMAIN_INPUT_TYPE_MOUSE || input->type == VIR_DOMAIN_INPUT_TYPE_KBD) && (ARCH_IS_X86(def->os.arch) || def->os.arch == VIR_ARCH_NONE)) { + input->bus = VIR_DOMAIN_INPUT_BUS_PS2; } else if (ARCH_IS_S390(def->os.arch) || input->type == VIR_DOMAIN_INPUT_TYPE_PASSTHROUGH) { input->bus = VIR_DOMAIN_INPUT_BUS_VIRTIO; -- 2.43.0

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[PATCH] conf: Restore setting default bus for input devices
by Michal Privoznik 03 Jan '24

03 Jan '24

Prior to v9.3.0-rc1~30 we used to set default bus for <input/> devices, during XML parsing. In the commit this code was moved to a post parse callback. But somehow the line that sets the bus in one specific case disappeared. Bring it back. Resolves: https://gitlab.com/libvirt/libvirt/-/issues/577 Fixes: c4bc4d3b82fbe22e03c986ca896090f481df5c10 Signed-off-by: Michal Privoznik <mprivozn(a)redhat.com> --- src/conf/domain_postparse.c | 1 + 1 file changed, 1 insertion(+) diff --git a/src/conf/domain_postparse.c b/src/conf/domain_postparse.c index e79913b73f..ed9411f5e6 100644 --- a/src/conf/domain_postparse.c +++ b/src/conf/domain_postparse.c @@ -657,6 +657,7 @@ virDomainInputDefPostParse(virDomainInputDef *input, if ((input->type == VIR_DOMAIN_INPUT_TYPE_MOUSE || input->type == VIR_DOMAIN_INPUT_TYPE_KBD) && (ARCH_IS_X86(def->os.arch) || def->os.arch == VIR_ARCH_NONE)) { + input->bus = VIR_DOMAIN_INPUT_BUS_PS2; } else if (ARCH_IS_S390(def->os.arch) || input->type == VIR_DOMAIN_INPUT_TYPE_PASSTHROUGH) { input->bus = VIR_DOMAIN_INPUT_BUS_VIRTIO; -- 2.41.0

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[PATCH] qemucapabilitiesdata: Final update of 'caps_8.2.0_x86_64'
by Peter Krempa 03 Jan '24

03 Jan '24

QEMU 8.2 was released, update the x86_64 data for a final time. Signed-off-by: Peter Krempa <pkrempa(a)redhat.com> --- .../qemucapabilitiesdata/caps_8.2.0_x86_64.replies | 13 +++++++------ tests/qemucapabilitiesdata/caps_8.2.0_x86_64.xml | 4 ++-- 2 files changed, 9 insertions(+), 8 deletions(-) diff --git a/tests/qemucapabilitiesdata/caps_8.2.0_x86_64.replies b/tests/qemucapabilitiesdata/caps_8.2.0_x86_64.replies index b9d26f633c..56011f8317 100644 --- a/tests/qemucapabilitiesdata/caps_8.2.0_x86_64.replies +++ b/tests/qemucapabilitiesdata/caps_8.2.0_x86_64.replies @@ -17,11 +17,11 @@ { "return": { "qemu": { - "micro": 50, - "minor": 1, + "micro": 0, + "minor": 2, "major": 8 }, - "package": "v8.1.0-3111-gad6ef0a42e" + "package": "v8.2.0" }, "id": "libvirt-2" } @@ -30705,9 +30705,10 @@ "type": "bool" }, { - "default-value": 0, - "name": "len-reserved-regions", - "type": "uint32" + "default-value": [ + ], + "name": "reserved-regions", + "type": "list" }, { "default-value": 0, diff --git a/tests/qemucapabilitiesdata/caps_8.2.0_x86_64.xml b/tests/qemucapabilitiesdata/caps_8.2.0_x86_64.xml index ef3bd14597..ee52952702 100644 --- a/tests/qemucapabilitiesdata/caps_8.2.0_x86_64.xml +++ b/tests/qemucapabilitiesdata/caps_8.2.0_x86_64.xml @@ -199,9 +199,9 @@ <flag name='qcow2-discard-no-unref'/> <flag name='run-with.async-teardown'/> <flag name='virtio-blk-vhost-vdpa'/> - <version>8001050</version> + <version>8002000</version> <microcodeVersion>43100246</microcodeVersion> - <package>v8.1.0-3111-gad6ef0a42e</package> + <package>v8.2.0</package> <arch>x86_64</arch> <hostCPU type='kvm' model='base' migratability='yes'> <property name='avx-ne-convert' type='boolean' value='false'/> -- 2.43.0

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[PATCH] ci: Switch from FreeBSD 12.0 to FreeBSD 14.0
by Michal Privoznik 03 Jan '24

03 Jan '24

FreeBSD 12.0 is no longer supported since 14.0 is out. Change the CI manifest and refresh the rest. Signed-off-by: Michal Privoznik <mprivozn(a)redhat.com> --- .../{freebsd-12.vars => freebsd-14.vars} | 0 ci/gitlab/builds.yml | 28 +++++++++---------- ci/manifest.yml | 4 +-- 3 files changed, 16 insertions(+), 16 deletions(-) rename ci/cirrus/{freebsd-12.vars => freebsd-14.vars} (100%) diff --git a/ci/cirrus/freebsd-12.vars b/ci/cirrus/freebsd-14.vars similarity index 100% rename from ci/cirrus/freebsd-12.vars rename to ci/cirrus/freebsd-14.vars diff --git a/ci/gitlab/builds.yml b/ci/gitlab/builds.yml index 5cc904ffb7..434e272e5a 100644 --- a/ci/gitlab/builds.yml +++ b/ci/gitlab/builds.yml @@ -1028,20 +1028,6 @@ mingw64-fedora-rawhide-local-env: # Native cirrus build jobs -x86_64-freebsd-12: - extends: .cirrus_build_job - needs: [] - allow_failure: false - variables: - CIRRUS_VM_IMAGE_NAME: freebsd-12-4 - CIRRUS_VM_IMAGE_SELECTOR: image_family - CIRRUS_VM_INSTANCE_TYPE: freebsd_instance - INSTALL_COMMAND: pkg install -y - NAME: freebsd-12 - UPDATE_COMMAND: pkg update - UPGRADE_COMMAND: pkg upgrade -y - - x86_64-freebsd-13: extends: .cirrus_build_job needs: [] @@ -1056,6 +1042,20 @@ x86_64-freebsd-13: UPGRADE_COMMAND: pkg upgrade -y +x86_64-freebsd-14: + extends: .cirrus_build_job + needs: [] + allow_failure: false + variables: + CIRRUS_VM_IMAGE_NAME: freebsd-14-0 + CIRRUS_VM_IMAGE_SELECTOR: image_family + CIRRUS_VM_INSTANCE_TYPE: freebsd_instance + INSTALL_COMMAND: pkg install -y + NAME: freebsd-14 + UPDATE_COMMAND: pkg update + UPGRADE_COMMAND: pkg upgrade -y + + aarch64-macos-13: extends: .cirrus_build_job needs: [] diff --git a/ci/manifest.yml b/ci/manifest.yml index 85f6b9d878..44353dd05b 100644 --- a/ci/manifest.yml +++ b/ci/manifest.yml @@ -192,10 +192,10 @@ targets: allow-failure: true builds: false - freebsd-12: x86_64 - freebsd-13: x86_64 + freebsd-14: x86_64 + opensuse-leap-15: jobs: - arch: x86_64 -- 2.41.0

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Plans for 10.0.0 release (freeze on Tuesday 09 Jan)
by Jiri Denemark 03 Jan '24

03 Jan '24

We are getting close to 10.0.0 release of libvirt. To aim for the release on Monday 15 Jan I suggest entering the freeze on Tuesday 09 Jan and tagging RC2 on Friday 12 Jan. I hope this works for everyone. Jirka

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[PATCH] storage_util: Fix the false condition in virStorageBackendDeviceIsEmpty
by Han Han 02 Jan '24

02 Jan '24

In virStorageBackendDeviceIsEmpty, the return value for virStorageBackendPARTEDValidLabel is -1 or 0. That makes the later condition 'ret == -2' make always false. Remove the always false condition. Found by Linux Verification Center (portal.linuxtesting.ru) with SVACE. Fixes: https://gitlab.com/libvirt/libvirt/-/issues/576 Signed-off-by: Han Han <hhan(a)redhat.com> --- src/storage/storage_util.c | 8 +------- 1 file changed, 1 insertion(+), 7 deletions(-) diff --git a/src/storage/storage_util.c b/src/storage/storage_util.c index 7bf815d978..82bcfa5838 100644 --- a/src/storage/storage_util.c +++ b/src/storage/storage_util.c @@ -3352,15 +3352,9 @@ virStorageBackendDeviceIsEmpty(const char *devpath, writelabel)) == -2) ret = virStorageBackendPARTEDValidLabel(devpath, format, writelabel); - if (ret == -2 && !writelabel) + if (!writelabel) ret = 0; - if (ret == -2) { - virReportError(VIR_ERR_OPERATION_INVALID, - _("Unable to probe '%1$s' for existing data, forced overwrite is necessary"), - devpath); - } - return ret == 0; } -- 2.43.0

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[PATCH v2] Improve error message in remoteGetUNIXSocket
by Martin Kletzander 02 Jan '24

02 Jan '24

By adding a link to an explanation in the kbase. Signed-off-by: Martin Kletzander <mkletzan(a)redhat.com> --- v2: - Do not print first socket path - Add a kbase article explaining the details and solutions - Add a link to said article v1: https://lists.libvirt.org/archives/list/devel@lists.libvirt.org/thread/WGEV… .../kbase/failed_connection_after_install.rst | 58 +++++++++++++++++++ docs/kbase/index.rst | 3 + docs/kbase/meson.build | 1 + src/remote/remote_sockets.c | 2 +- 4 files changed, 63 insertions(+), 1 deletion(-) create mode 100644 docs/kbase/failed_connection_after_install.rst diff --git a/docs/kbase/failed_connection_after_install.rst b/docs/kbase/failed_connection_after_install.rst new file mode 100644 index 000000000000..cea57c460e10 --- /dev/null +++ b/docs/kbase/failed_connection_after_install.rst @@ -0,0 +1,58 @@ +======================================== +Libvirt does not work after installation +======================================== + +.. contents:: + +TL;DR +===== + +Most probably you want to start a virtqemud socket: + +:: + + # systemctl start virtqemud.socket + +If you are unsure whether to do this, please read the rest of this document. + +Symptom +======= + +After installing libvirt or a virt tool that uses libvirt, commands do +not work when run as root: + +:: + + # virsh list + error: failed to connect to the hypervisor + error: Operation not supported: Cannot use direct socket mode if no URI is set. + For more information see https://libvirt.org/kbase/failed_connection_after_install.html + +Root cause +========== + +Distribution guidelines and/or configurations may discourage or prohibit +starting services as part of a package installation. And because libvirt cannot +know where you might want to connect it cannot start it on its own. + +Solution +======== + +After installing libvirt you may need to start a particular libvirt daemon on +the local machine, set a (default) URI to connect to or, alternatively, +rebooting the machine might work. + +If you are trying to connect to a remote libvirt daemon you need to specify a `connection URI <../uri.html>`__. + +If you are trying to control a local hypervisor, then the solution depends on various factors. You should know: + +- what hypervisor driver you want to connect to, whether it is ``virtqemud`` for QEMU, ``virtchd`` for Cloud Hypervisor, etc. and +- how to start a service or socket (in case of systemd) on you system. + +Example of the most common solution, trying to use QEMU/KVM on Linux with systemd as an init system, is: + +:: + + # systemctl start virtqemud.socket + +also provided on the top of the page. diff --git a/docs/kbase/index.rst b/docs/kbase/index.rst index 896ececdf258..e51b35cbfce5 100644 --- a/docs/kbase/index.rst +++ b/docs/kbase/index.rst @@ -64,6 +64,9 @@ Usage `Secure Boot <secureboot.html>`__ Enable and disable the Secure Boot feature +`Connection fail after installation <failed_connection_after_install.html>`__ + Explanation of a common issue users stumble upon after installation + Debugging --------- diff --git a/docs/kbase/meson.build b/docs/kbase/meson.build index 5b608293e27c..6d4ca90215a5 100644 --- a/docs/kbase/meson.build +++ b/docs/kbase/meson.build @@ -2,6 +2,7 @@ docs_kbase_files = [ 'backing_chains', 'debuglogs', 'domainstatecapture', + 'failed_connection_after_install', 'index', 'kvm-realtime', 'launch_security_sev', diff --git a/src/remote/remote_sockets.c b/src/remote/remote_sockets.c index 4ab3d72933e2..8d403b6f014a 100644 --- a/src/remote/remote_sockets.c +++ b/src/remote/remote_sockets.c @@ -398,7 +398,7 @@ remoteGetUNIXSocket(remoteDriverTransport transport, if (!direct_sock_name) { virReportError(VIR_ERR_OPERATION_UNSUPPORTED, "%s", - _("Cannot use direct socket mode if no URI is set")); + _("Cannot use direct socket mode if no URI is set. For more information see https://libvirt.org/kbase/failed_connection_after_install.html")); return NULL; } -- 2.43.0

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