October 2014 - Devel - libvirt List Archives

[libvirt] [PATCH 0/2] Fix two coverity issues
by Pavel Hrdina 31 Oct '14

31 Oct '14

Both are false positive but its nice to make coverity happy. Pavel Hrdina (2): vbox_storage: fix coverity issue with overwriting value hotplug: fix char device detach src/qemu/qemu_hotplug.c | 12 ++++++++---- src/vbox/vbox_storage.c | 36 ++++++++++++++++-------------------- 2 files changed, 24 insertions(+), 24 deletions(-) -- 2.0.4

2 7

[libvirt] [PATCH 1/2] qemu: migration:Release nbd port from migrationPorts instead of remotePorts
by weiwei li 31 Oct '14

31 Oct '14

commit 3e1e16aa8d4238241a1806cb9bdb3b9ad60db777(Use a port from the migration range for NBD as well) change ndb port allocation from remotePorts to migrationPorts, but does not change the port releasing process, which makes an error when migration seveal times(above 64). Signed-off-by: Weiwei Li <nuonuoli(a)tencent.com> --- src/qemu/qemu_migration.c | 8 ++++---- src/qemu/qemu_process.c | 2 +- 2 files changed, 5 insertions(+), 5 deletions(-) diff --git a/src/qemu/qemu_migration.c b/src/qemu/qemu_migration.c index ca70e35..0ad8054 100644 --- a/src/qemu/qemu_migration.c +++ b/src/qemu/qemu_migration.c @@ -1351,7 +1351,7 @@ qemuMigrationStartNBDServer(virQEMUDriverPtr driver, unsigned short port = 0; char *diskAlias = NULL; size_t i; - + VIR_DEBUG("DEBUG: in qemuMigrationStartNBDServer"); for (i = 0; i < vm->def->ndisks; i++) { virDomainDiskDefPtr disk = vm->def->disks[i]; @@ -1389,7 +1389,7 @@ qemuMigrationStartNBDServer(virQEMUDriverPtr driver, cleanup: VIR_FREE(diskAlias); if (ret < 0) - virPortAllocatorRelease(driver->remotePorts, port); + virPortAllocatorRelease(driver->migrationPorts, port); return ret; } @@ -1595,7 +1595,7 @@ qemuMigrationStopNBDServer(virQEMUDriverPtr driver, qemuDomainObjExitMonitor(driver, vm); - virPortAllocatorRelease(driver->remotePorts, priv->nbdPort); + virPortAllocatorRelease(driver->migrationPorts, priv->nbdPort); priv->nbdPort = 0; } @@ -2813,7 +2813,7 @@ qemuMigrationPrepareAny(virQEMUDriverPtr driver, VIR_FORCE_CLOSE(dataFD[1]); if (vm) { if (ret < 0) { - virPortAllocatorRelease(driver->remotePorts, priv->nbdPort); + virPortAllocatorRelease(driver->migrationPorts, priv->nbdPort); priv->nbdPort = 0; } if (ret >= 0 || vm->persistent) diff --git a/src/qemu/qemu_process.c b/src/qemu/qemu_process.c index ef258cf..ba8ba82 100644 --- a/src/qemu/qemu_process.c +++ b/src/qemu/qemu_process.c @@ -4839,7 +4839,7 @@ void qemuProcessStop(virQEMUDriverPtr driver, } } - virPortAllocatorRelease(driver->remotePorts, priv->nbdPort); + virPortAllocatorRelease(driver->migrationPorts, priv->nbdPort); priv->nbdPort = 0; if (priv->agent) { -- 1.7.1

4 4

[libvirt] [PATCH 0/3] Avoid rare race with virDomainUndefine()
by Martin Kletzander 31 Oct '14

31 Oct '14

First patch just fixes 'virsh list' for a rare case that is similar to the one fixed in the third patch. Second patch is just a helper for reproducing the race. This was found in qemu driver but is fixed on upper level, so it should be more general. Martin Kletzander (3): virsh: don't list unknown domains DO NOT APPLY UPSTREAM: Reproducer helper Avoid rare race when undefining domain src/conf/domain_conf.c | 26 +++++++++++++++++++++++--- src/conf/domain_conf.h | 1 + tools/virsh-domain-monitor.c | 5 +++++ 3 files changed, 29 insertions(+), 3 deletions(-) -- 2.1.2

3 9

[libvirt] [PATCH] Do not probe for power mgmt capabilities in lxc emulator
by Ján Tomko 31 Oct '14

31 Oct '14

It fails after 30 seconds with this error: error : virDBusCall:1429 : error from service: CanSuspend: Did not receive a reply. Possible causes include: the remote application did not send a reply, the message bus security policy blocked the reply, the reply timeout expired, or the network connection was broken. Only probe for the power mgmt capabilities when driver is non-NULL. This speeds up domain startup by 30 seconds. https://bugzilla.redhat.com/show_bug.cgi?id=1159227 --- src/lxc/lxc_conf.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/src/lxc/lxc_conf.c b/src/lxc/lxc_conf.c index 17df7a8..e713ff8 100644 --- a/src/lxc/lxc_conf.c +++ b/src/lxc/lxc_conf.c @@ -82,7 +82,9 @@ virCapsPtr virLXCDriverCapsInit(virLXCDriverPtr driver) VIR_WARN("Failed to query host NUMA topology, disabling NUMA capabilities"); } - if (virNodeSuspendGetTargetMask(&caps->host.powerMgmt) < 0) + /* Only probe for power management capabilities in the driver, + * not in the emulator */ + if (driver && virNodeSuspendGetTargetMask(&caps->host.powerMgmt) < 0) VIR_WARN("Failed to get host power management capabilities"); if (virGetHostUUID(caps->host.host_uuid)) { -- 2.0.4

3 2

[libvirt] [PATCH] qemu: make advice from numad available when building commandline
by Martin Kletzander 31 Oct '14

31 Oct '14

Particularly in qemuBuildNumaArgStr(), there was a need for the advice due to memory backing, which needs to know the nodeset it will be pinned to. With newer qemu this caused the following error when starting domain: error: internal error: Advice from numad is needed in case of automatic numa placement even when starting perfectly valid domain, e.g.: ... <vcpu placement='auto'>4</vcpu> <numatune> <memory mode='strict' placement='auto'/> </numatune> <cpu> <numa> <cell id='0' cpus='0' memory='524288'/> <cell id='1' cpus='1' memory='524288'/> </numa> </cpu> ... Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1138545 Signed-off-by: Martin Kletzander <mkletzan(a)redhat.com> --- src/qemu/qemu_command.c | 10 ++++++---- src/qemu/qemu_command.h | 3 ++- src/qemu/qemu_driver.c | 3 ++- src/qemu/qemu_process.c | 3 ++- tests/qemuxml2argvtest.c | 3 ++- tests/qemuxmlnstest.c | 2 +- 6 files changed, 15 insertions(+), 9 deletions(-) diff --git a/src/qemu/qemu_command.c b/src/qemu/qemu_command.c index 2e5af4f..207e2b0 100644 --- a/src/qemu/qemu_command.c +++ b/src/qemu/qemu_command.c @@ -6636,7 +6636,8 @@ static int qemuBuildNumaArgStr(virQEMUDriverConfigPtr cfg, const virDomainDef *def, virCommandPtr cmd, - virQEMUCapsPtr qemuCaps) + virQEMUCapsPtr qemuCaps, + virBitmapPtr nodeset) { size_t i, j; virBuffer buf = VIR_BUFFER_INITIALIZER; @@ -6796,7 +6797,7 @@ qemuBuildNumaArgStr(virQEMUDriverConfigPtr cfg, virBufferAsprintf(&buf, ",size=%dM,id=ram-node%zu", cellmem, i); - if (virDomainNumatuneMaybeFormatNodeset(def->numatune, NULL, + if (virDomainNumatuneMaybeFormatNodeset(def->numatune, nodeset, &nodemask, i) < 0) goto cleanup; @@ -7764,7 +7765,8 @@ qemuBuildCommandLine(virConnectPtr conn, virNetDevVPortProfileOp vmop, qemuBuildCommandLineCallbacksPtr callbacks, bool standalone, - bool enableFips) + bool enableFips, + virBitmapPtr nodeset) { virErrorPtr originalError = NULL; size_t i, j; @@ -7992,7 +7994,7 @@ qemuBuildCommandLine(virConnectPtr conn, } if (def->cpu && def->cpu->ncells) - if (qemuBuildNumaArgStr(cfg, def, cmd, qemuCaps) < 0) + if (qemuBuildNumaArgStr(cfg, def, cmd, qemuCaps, nodeset) < 0) goto error; if (virQEMUCapsGet(qemuCaps, QEMU_CAPS_UUID)) diff --git a/src/qemu/qemu_command.h b/src/qemu/qemu_command.h index aa40c9e..f7d3c2d 100644 --- a/src/qemu/qemu_command.h +++ b/src/qemu/qemu_command.h @@ -79,7 +79,8 @@ virCommandPtr qemuBuildCommandLine(virConnectPtr conn, virNetDevVPortProfileOp vmop, qemuBuildCommandLineCallbacksPtr callbacks, bool forXMLToArgv, - bool enableFips) + bool enableFips, + virBitmapPtr nodeset) ATTRIBUTE_NONNULL(1) ATTRIBUTE_NONNULL(11); /* Generate '-device' string for chardev device */ diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c index 373daab..5ac638a 100644 --- a/src/qemu/qemu_driver.c +++ b/src/qemu/qemu_driver.c @@ -6472,7 +6472,8 @@ static char *qemuConnectDomainXMLToNative(virConnectPtr conn, VIR_NETDEV_VPORT_PROFILE_OP_NO_OP, &buildCommandLineCallbacks, true, - qemuCheckFips()))) + qemuCheckFips(), + NULL))) goto cleanup; ret = virCommandToString(cmd); diff --git a/src/qemu/qemu_process.c b/src/qemu/qemu_process.c index ef258cf..6cbd608 100644 --- a/src/qemu/qemu_process.c +++ b/src/qemu/qemu_process.c @@ -4362,7 +4362,8 @@ int qemuProcessStart(virConnectPtr conn, priv->monJSON, priv->qemuCaps, migrateFrom, stdin_fd, snapshot, vmop, &buildCommandLineCallbacks, false, - qemuCheckFips()))) + qemuCheckFips(), + nodemask))) goto cleanup; /* now that we know it is about to start call the hook if present */ diff --git a/tests/qemuxml2argvtest.c b/tests/qemuxml2argvtest.c index 0e9fab9..9b8e3e2 100644 --- a/tests/qemuxml2argvtest.c +++ b/tests/qemuxml2argvtest.c @@ -362,7 +362,8 @@ static int testCompareXMLToArgvFiles(const char *xml, migrateFrom, migrateFd, NULL, VIR_NETDEV_VPORT_PROFILE_OP_NO_OP, &testCallbacks, false, - (flags & FLAG_FIPS)))) { + (flags & FLAG_FIPS), + NULL))) { if (!virtTestOOMActive() && (flags & FLAG_EXPECT_FAILURE)) { ret = 0; diff --git a/tests/qemuxmlnstest.c b/tests/qemuxmlnstest.c index b3a608c..2f37a26 100644 --- a/tests/qemuxmlnstest.c +++ b/tests/qemuxmlnstest.c @@ -119,7 +119,7 @@ static int testCompareXMLToArgvFiles(const char *xml, vmdef, &monitor_chr, json, extraFlags, migrateFrom, migrateFd, NULL, VIR_NETDEV_VPORT_PROFILE_OP_NO_OP, - &testCallbacks, false, false))) + &testCallbacks, false, false, NULL))) goto fail; if (!virtTestOOMActive()) { -- 2.1.2

2 2

[libvirt] [PATCH 0/2] Improve error messages about blkio values
by Martin Kletzander 31 Oct '14

31 Oct '14

There was one message used for all parsing errors in the blkio code. This series fixes it in both qemu and lxc drivers where the code is used. Martin Kletzander (2): qemu: improve error message for invalid blkiotune settings lxc: improve error message for invalid blkiotune settings src/lxc/lxc_driver.c | 29 +++++++++++++++++++---------- src/qemu/qemu_driver.c | 29 +++++++++++++++++++---------- 2 files changed, 38 insertions(+), 20 deletions(-) -- 2.1.2

3 5

[libvirt] Entering freeze and release of cadidate release 1 of 1.2.10
by Daniel Veillard 31 Oct '14

31 Oct '14

As planned beginning of this week, I just tagged 1.2.10-rc1 in git and pushed signed tarballs and rpms to the usual place: ftp://libvirt.org/libvirt/ The plan would be to get the rc2 out this friday, and push the release on monday if everything looks okay. In my own tests, my guest lost network connectivity, I'm not sure if it is a temporary problem on my side or something more serious in the current code, so please give it a try and report, thanks, Daniel -- Daniel Veillard | Open Source and Standards, Red Hat veillard(a)redhat.com | libxml Gnome XML XSLT toolkit http://xmlsoft.org/ http://veillard.com/ | virtualization library http://libvirt.org/

2 3

[libvirt] [PATCH v3 0/3] add nodeset check in numatune
by Chen Fan 31 Oct '14

31 Oct '14

when setting elements memnode and nodeset in attribute numatune more than the host nodes in XML file, VM boot should fail. so add check for that. Chen Fan (3): numatune: add check for numatune nodeset range lxc controller: add check for numatune virnuma: remove redundant check for numanode src/conf/numatune_conf.c | 28 +++++++++++++ src/conf/numatune_conf.h | 1 + src/libvirt_private.syms | 2 + src/lxc/lxc_controller.c | 1 + src/qemu/qemu_command.c | 3 ++ src/qemu/qemu_command.h | 1 + src/util/virbitmap.c | 49 ++++++++++++++++++++++ src/util/virbitmap.h | 3 ++ src/util/virnuma.c | 48 ++++++++++++++------- src/util/virnuma.h | 2 + ...rgv-numatune-static-nodeset-exceed-hostnode.xml | 35 ++++++++++++++++ tests/qemuxml2argvmock.c | 9 ++++ tests/qemuxml2argvtest.c | 1 + tests/virbitmaptest.c | 26 +++++++++++- 14 files changed, 193 insertions(+), 16 deletions(-) create mode 100644 tests/qemuxml2argvdata/qemuxml2argv-numatune-static-nodeset-exceed-hostnode.xml -- 1.9.3

3 9

[libvirt] virsh migrate
by Chateigner Nicolas 30 Oct '14

30 Oct '14

Hi, I would like to use this command to backup my virtual machine on my secondary server virsh migrate --live --suspend --copy-storage-inc virtual_machine qemu+ssh://root@secondary_server/system But we don't have option to disable shut off the virtual machine on the source server. Would you add an option to offer this functionality ? Best regards Nicolas Chateigner <http://www.inserm.fr>

1 0

[libvirt] virStorageFileGetMetadata bug?
by Serge Hallyn 30 Oct '14

30 Oct '14

Hi, I'm looking into why virt-aa-helper isn't adding allow rules for backing stores nested deeper than 1. So if I do qemu-img create -f qcow2 l1.img 10G qemu-img create -f qcow2 -b l1.img l2.img and use l2.img in a domain, then virt-aa-helper will add allow rules for the domain to access both l1.img and l2.img. But if I qemu-img create -f qcow2 -b l2.img l3.img and use l3.img in the domain, then l3.img will not get an allow rule. Looking at src/security/virt-aa-helper.c:get_files(), it is doing: if (!disk->src->backingStore) { bool probe = ctl->allowDiskFormatProbing; virStorageFileGetMetadata(disk->src, -1, -1, probe, false); } if (virDomainDiskDefForeachPath(disk, true, add_file_path, &buf) < 0) goto cleanup; and virStorageFileGetMetadata in turn calls virStorageFileGetMetadataRecurse(). So it seems like l3.img *should* be geting hit in virDomainDiskDefForeachPath, but it's not. Am I misunderstanding something in how these helpers should be used? thanks, -serge

2 2