March 2016 - Devel - libvirt List Archives

[libvirt] [PATCH] datatypes.c: Replace 'close' with 'closeData'
by Michal Privoznik 02 Mar '16

02 Mar '16

Older compilers fail to see that 'close' is not used a function rather than a variable and produce the following error: cc1: warnings being treated as errors ../../src/datatypes.c: In function 'virConnectCloseCallbackDataReset': ../../src/datatypes.c:149: error: declaration of 'close' shadows a global declaration [-Wshadow] Replace all the 'close' occurrences with 'closeData' to resolve this. Signed-off-by: Michal Privoznik <mprivozn(a)redhat.com> --- src/datatypes.c | 72 ++++++++++++++++++++++++++++----------------------------- 1 file changed, 36 insertions(+), 36 deletions(-) diff --git a/src/datatypes.c b/src/datatypes.c index 163db39..696e8c0 100644 --- a/src/datatypes.c +++ b/src/datatypes.c @@ -145,16 +145,16 @@ virConnectDispose(void *obj) } -static -void virConnectCloseCallbackDataReset(virConnectCloseCallbackDataPtr close) +static void +virConnectCloseCallbackDataReset(virConnectCloseCallbackDataPtr closeData) { - if (close->freeCallback) - close->freeCallback(close->opaque); + if (closeData->freeCallback) + closeData->freeCallback(closeData->opaque); - close->freeCallback = NULL; - close->opaque = NULL; - virObjectUnref(close->conn); - close->conn = NULL; + closeData->freeCallback = NULL; + closeData->opaque = NULL; + virObjectUnref(closeData->conn); + closeData->conn = NULL; } /** @@ -178,77 +178,77 @@ virNewConnectCloseCallbackData(void) return virObjectLockableNew(virConnectCloseCallbackDataClass); } -void virConnectCloseCallbackDataRegister(virConnectCloseCallbackDataPtr close, +void virConnectCloseCallbackDataRegister(virConnectCloseCallbackDataPtr closeData, virConnectPtr conn, virConnectCloseFunc cb, void *opaque, virFreeCallback freecb) { - virObjectLock(close); + virObjectLock(closeData); - if (close->callback != NULL) { + if (closeData->callback != NULL) { VIR_WARN("Attempt to register callback on armed" - " close callback object %p", close); + " close callback object %p", closeData); goto cleanup; return; } - close->conn = conn; - virObjectRef(close->conn); - close->callback = cb; - close->opaque = opaque; - close->freeCallback = freecb; + closeData->conn = conn; + virObjectRef(closeData->conn); + closeData->callback = cb; + closeData->opaque = opaque; + closeData->freeCallback = freecb; cleanup: - virObjectUnlock(close); + virObjectUnlock(closeData); } -void virConnectCloseCallbackDataUnregister(virConnectCloseCallbackDataPtr close, +void virConnectCloseCallbackDataUnregister(virConnectCloseCallbackDataPtr closeData, virConnectCloseFunc cb) { - virObjectLock(close); + virObjectLock(closeData); - if (close->callback != cb) { + if (closeData->callback != cb) { VIR_WARN("Attempt to unregister different callback on " - " close callback object %p", close); + " close callback object %p", closeData); goto cleanup; } - virConnectCloseCallbackDataReset(close); - close->callback = NULL; + virConnectCloseCallbackDataReset(closeData); + closeData->callback = NULL; cleanup: - virObjectUnlock(close); + virObjectUnlock(closeData); } -void virConnectCloseCallbackDataCall(virConnectCloseCallbackDataPtr close, +void virConnectCloseCallbackDataCall(virConnectCloseCallbackDataPtr closeData, int reason) { - virObjectLock(close); + virObjectLock(closeData); - if (!close->conn) + if (!closeData->conn) goto exit; VIR_DEBUG("Triggering connection close callback %p reason=%d, opaque=%p", - close->callback, reason, close->opaque); - close->callback(close->conn, reason, close->opaque); + closeData->callback, reason, closeData->opaque); + closeData->callback(closeData->conn, reason, closeData->opaque); - virConnectCloseCallbackDataReset(close); + virConnectCloseCallbackDataReset(closeData); exit: - virObjectUnlock(close); + virObjectUnlock(closeData); } virConnectCloseFunc -virConnectCloseCallbackDataGetCallback(virConnectCloseCallbackDataPtr close) +virConnectCloseCallbackDataGetCallback(virConnectCloseCallbackDataPtr closeData) { virConnectCloseFunc cb; - virObjectLock(close); - cb = close->callback; - virObjectUnlock(close); + virObjectLock(closeData); + cb = closeData->callback; + virObjectUnlock(closeData); return cb; } -- 2.4.10

1 1

[libvirt] after update to libvirt >= 1.2.9.3 no connection to libvirtd (time out) - bug 1308736
by Florian Hubold 02 Mar '16

02 Mar '16

Hi all, I've reported https://bugzilla.redhat.com/show_bug.cgi?id=1308736 two weeks ago, including the results of a git bisect. It would be greatly appreciated if someone could take a look, otherwise we can't push an update for CVE-2015-5313 for our stable distribution. Kind regards and thanks in advance

1 0

[libvirt] [PATCH] util: Fix missing initializer for agent
by John Ferlan 01 Mar '16

01 Mar '16

In virPolkitAgentCreate neglected to initialize agent to NULL. If there was an error in the pipe, then we jump to error and would have an issue. Found by coverity. Signed-off-by: John Ferlan <jferlan(a)redhat.com> --- Pushing as trivial src/util/virpolkit.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/src/util/virpolkit.c b/src/util/virpolkit.c index 3d2be61..44f2328 100644 --- a/src/util/virpolkit.c +++ b/src/util/virpolkit.c @@ -166,7 +166,7 @@ virPolkitAgentDestroy(virPolkitAgentPtr agent) virPolkitAgentPtr virPolkitAgentCreate(void) { - virPolkitAgentPtr agent; + virPolkitAgentPtr agent = NULL; virCommandPtr cmd = virCommandNewArgList(PKTTYAGENT, "--process", NULL); int pipe_fd[2] = {-1, -1}; struct pollfd pollfd; -- 2.5.0

1 0

[libvirt] Libvirt accepted to GSoC
by Michal Privoznik 01 Mar '16

01 Mar '16

Dear community, let me announce great news: Libvirt applied for this year's Google Summer of Code and got accepted [1]! You may recall that in previous years we created a joint organisation with QEMU/KVM folks and participated that way. However, since the number of libvirt students was growing and usually exceeded number of QEMU or KVM students combined it started to become more and more obvious that libvirt should no longer misuse hospitality of QEMU/KVM volunteers and try on its own. And it worked. In addition, QEMU/KVM organisation has been accepted too - join me in congratulating them and saying big thank you for all of the work that they have done for us in those previous years! The idea of splitting has been discussed here too [2]. What to do next? You can still propose ideas, and ideally add them to the list [3]. Or if you don't feel confident enough, drop me an e-mail and I'll take care of that. It's until 14th March that students are able to start filling in their proposals. And this is where this year differs from the previous ones - the deadline for proposals is 25th March. Without proposal no student can be accepted to the program. So you may help by spreading the word too. Happy coding! Michal 1: https://summerofcode.withgoogle.com/organizations/5982501017223168/ 2: https://www.redhat.com/archives/libvir-list/2016-January/msg01076.html 3: http://wiki.libvirt.org/page/Google_Summer_of_Code_2016

1 0

[libvirt] [PATCH] Libvirt: Add missing default value for config option max_queued_clients
by Jason J. Herne 01 Mar '16

01 Mar '16

Commit 1199edb1d4e3 added config option max_queued_clients and documented the default value as 1000 but never actually set that value. This patch sets the default value. This addresses an issue whereby the following error message is reported if too many migrations are started simultaneously: error: End of file while reading data: Ncat: Invalid argument.: Input/output error The problem is that too many ncat processes are spawned on the destination system. They all attempt to connect to the libvirt socket. Because the destination libvirtd cannot respond to the connect requests quickly enough we overrun the socket's pending connections queue. Signed-off-by: Jason J. Herne <jjherne(a)linux.vnet.ibm.com> Reviewed-by: Boris Fiuczynski <fiuczy(a)linux.vnet.ibm.com> --- daemon/libvirtd-config.c | 1 + 1 file changed, 1 insertion(+) diff --git a/daemon/libvirtd-config.c b/daemon/libvirtd-config.c index c31c8b2..7a448f9 100644 --- a/daemon/libvirtd-config.c +++ b/daemon/libvirtd-config.c @@ -280,6 +280,7 @@ daemonConfigNew(bool privileged ATTRIBUTE_UNUSED) data->min_workers = 5; data->max_workers = 20; data->max_clients = 5000; + data->max_queued_clients = 1000; data->max_anonymous_clients = 20; data->prio_workers = 5; -- 1.9.1

2 1

[libvirt] [PATCH] docs: Clarify interface/target/@dev docs
by Jiri Denemark 01 Mar '16

01 Mar '16

https://bugzilla.redhat.com/show_bug.cgi?id=1313314 Signed-off-by: Jiri Denemark <jdenemar(a)redhat.com> --- docs/formatdomain.html.in | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/docs/formatdomain.html.in b/docs/formatdomain.html.in index c54b308..df8c06c 100644 --- a/docs/formatdomain.html.in +++ b/docs/formatdomain.html.in @@ -4507,10 +4507,10 @@ qemu-kvm -net nic,model=? /dev/null If no target is specified, certain hypervisors will automatically generate a name for the created tun device. This - name can be manually specified, however the name must not + name can be manually specified, however the name should not start with either 'vnet' or 'vif', which are prefixes reserved by libvirt and certain hypervisors. Manually specified - targets using these prefixes will be ignored. + targets using these prefixes may be ignored. -- 2.7.2

3 3

[libvirt] [PATCH v7 0/6] Global domain cpu.cfs_period_us and cpu.cfs_quota_us setup
by Alexander Burluka 01 Mar '16

01 Mar '16

This patchset implements an ability to specify values for domain top level cpu.cfs_period_us and cpu.cfs_quota_us cgroups. These parameters are opt-in and named "global_period" and "global_quota". Introduction of these settings gives management applications further choice of controlling CPU usage. Changes in v2: add XML validation test Changes in v3: remove unneccessary cgroup copying Changes in v4: fix little rebase error Changes in v5: rebase to version 1.3.1 Changes in v6: remove unnecessary check Changes in v7: rebase to current master Alexander Burluka (6): Add global period definitions Add global quota parameter necessary definitions Add error checking on global quota and period Add global_period and global_quota XML validation test Implement qemuSetupGlobalCpuCgroup Implement handling of per-domain bandwidth settings docs/schemas/domaincommon.rng | 10 +++ include/libvirt/libvirt-domain.h | 32 +++++++ src/conf/domain_conf.c | 37 +++++++++ src/conf/domain_conf.h | 2 + src/qemu/qemu_cgroup.c | 49 +++++++++++ src/qemu/qemu_cgroup.h | 1 + src/qemu/qemu_command.c | 3 +- src/qemu/qemu_driver.c | 97 +++++++++++++++++++++- src/qemu/qemu_process.c | 4 + tests/qemuxml2argvdata/qemuxml2argv-cputune.xml | 2 + .../qemuxml2xmloutdata/qemuxml2xmlout-cputune.xml | 2 + 11 files changed, 236 insertions(+), 3 deletions(-) -- 1.8.3.1

2 16

[libvirt] [PATCH] qemu: Don't always wait for SPICE to finish migration
by Jiri Denemark 01 Mar '16

01 Mar '16

When SPICE graphics is configured for a domain but we did not ask the client to switch to the destination, we should not wait for SPICE_MIGRATE_COMPLETED event (which will never come). https://bugzilla.redhat.com/show_bug.cgi?id=1151723 Signed-off-by: Jiri Denemark <jdenemar(a)redhat.com> --- src/qemu/qemu_domain.h | 2 ++ src/qemu/qemu_migration.c | 4 +++- 2 files changed, 5 insertions(+), 1 deletion(-) diff --git a/src/qemu/qemu_domain.h b/src/qemu/qemu_domain.h index 8359b1a..0144792 100644 --- a/src/qemu/qemu_domain.h +++ b/src/qemu/qemu_domain.h @@ -137,6 +137,8 @@ struct qemuDomainJobObj { qemuDomainJobInfoPtr current; /* async job progress data */ qemuDomainJobInfoPtr completed; /* statistics data of a recently completed job */ bool abortJob; /* abort of the job requested */ + bool spiceMigration; /* we asked for spice migration and we + * should wait for it to finish */ bool spiceMigrated; /* spice migration completed */ }; diff --git a/src/qemu/qemu_migration.c b/src/qemu/qemu_migration.c index 704e182..64cbffa 100644 --- a/src/qemu/qemu_migration.c +++ b/src/qemu/qemu_migration.c @@ -2415,7 +2415,8 @@ qemuMigrationWaitForSpice(virDomainObjPtr vm) bool wait_for_spice = false; size_t i = 0; - if (!virQEMUCapsGet(priv->qemuCaps, QEMU_CAPS_SEAMLESS_MIGRATION)) + if (!virQEMUCapsGet(priv->qemuCaps, QEMU_CAPS_SEAMLESS_MIGRATION) || + !priv->job.spiceMigration) return 0; for (i = 0; i < vm->def->ngraphics; i++) { @@ -2789,6 +2790,7 @@ qemuDomainMigrateGraphicsRelocate(virQEMUDriverPtr driver, QEMU_ASYNC_JOB_MIGRATION_OUT) == 0) { ret = qemuMonitorGraphicsRelocate(priv->mon, type, listenAddress, port, tlsPort, tlsSubject); + priv->job.spiceMigration = !ret; if (qemuDomainObjExitMonitor(driver, vm) < 0) ret = -1; } -- 2.7.2

2 2

[libvirt] [PATCH] qemu: Don't try to fetch migration stats on destination
by Jiri Denemark 01 Mar '16

01 Mar '16

Migration statistics are not available on the destination host and starting a query job during incoming migration is not allowed. Trying to do that would result in Timed out during operation: cannot acquire state change lock (held by remoteDispatchDomainMigratePrepare3Params) error. We should not even try to start the job. https://bugzilla.redhat.com/show_bug.cgi?id=1278727 Signed-off-by: Jiri Denemark <jdenemar(a)redhat.com> --- src/qemu/qemu_driver.c | 13 ++++++++++--- 1 file changed, 10 insertions(+), 3 deletions(-) diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c index 45ff3c0..241de67 100644 --- a/src/qemu/qemu_driver.c +++ b/src/qemu/qemu_driver.c @@ -12901,9 +12901,16 @@ qemuDomainGetJobStatsInternal(virQEMUDriverPtr driver, if (!priv->job.current || !priv->job.current->stats.status) fetch = false; - if (fetch && - qemuDomainObjBeginJob(driver, vm, QEMU_JOB_QUERY) < 0) - return -1; + if (fetch) { + if (priv->job.asyncJob == QEMU_ASYNC_JOB_MIGRATION_IN) { + virReportError(VIR_ERR_OPERATION_UNSUPPORTED, "%s", + _("migration statistics are available only on " + "the source host")); + return -1; + } + if (qemuDomainObjBeginJob(driver, vm, QEMU_JOB_QUERY) < 0) + return -1; + } if (!completed && !virDomainObjIsActive(vm)) { -- 2.7.2

2 2

[libvirt] [PATCH] Fix formatting in remote_protocol-structs
by Jiri Denemark 01 Mar '16

01 Mar '16

Signed-off-by: Jiri Denemark <jdenemar(a)redhat.com> --- src/remote_protocol-structs | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/src/remote_protocol-structs b/src/remote_protocol-structs index 11048b7..6c1cf5d 100644 --- a/src/remote_protocol-structs +++ b/src/remote_protocol-structs @@ -2503,7 +2503,7 @@ struct remote_domain_event_callback_device_added_msg { remote_nonnull_string devAlias; }; struct remote_connect_event_connection_closed_msg { - int reason; + int reason; }; struct remote_connect_get_cpu_model_names_args { remote_nonnull_string arch; -- 2.7.2

1 1