July 2014 - Devel - libvirt List Archives

[libvirt] odd message from latest libvirt.git
by Eric Blake 01 Jul '14

01 Jul '14

# ./run daemon/libvirtd 2014-07-01 04:27:19.913+0000: 1160: info : libvirt version: 1.2.6 2014-07-01 04:27:19.913+0000: 1160: error : virFileReadAll:1297 : Failed to read file '/sys/class/net/wlp3s0/speed': Invalid argument This is probably a kernel bug in Fedora 20; but we shouldn't be polluting the logs just because of the kernel being unable to read a file that it claims exists: # ls -l /sys/class/net/wlp3s0/speed -r--r--r--. 1 root root 4096 Jun 28 07:41 /sys/class/net/wlp3s0/speed # cat /sys/class/net/wlp3s0/speed cat: /sys/class/net/wlp3s0/speed: Invalid argument -- Eric Blake eblake redhat com +1-919-301-3266 Libvirt virtualization library http://libvirt.org

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[libvirt] [PATCH v1.2.[1-5]-maint] qemu: blockcopy: Don't remove existing disk mirror info
by Eric Blake 01 Jul '14

01 Jul '14

From: Peter Krempa <pkrempa(a)redhat.com> When creating a new disk mirror the new struct is stored in a separate variable until everything went well. The removed hunk would actually remove existing mirror information for example when the api would be run if a mirror still exists. (cherry picked from commit 02b364e186d487f54ed410c01af042f23e812d42) This fixes a regression introduced in commit ff5f30b. Signed-off-by: Eric Blake <eblake(a)redhat.com> Conflicts: src/qemu/qemu_driver.c - no refactoring of commit 7b7bf001 --- As Peter's patch resolves a regression, I'd like to backport it to the maint branches; however, that means redoing the patch. src/qemu/qemu_driver.c | 18 +++++++++--------- 1 file changed, 9 insertions(+), 9 deletions(-) diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c index 59185c6..591864f 100644 --- a/src/qemu/qemu_driver.c +++ b/src/qemu/qemu_driver.c @@ -15203,6 +15203,7 @@ qemuDomainBlockCopy(virDomainObjPtr vm, struct stat st; bool need_unlink = false; char *mirror = NULL; + int mirrorFormat; virQEMUDriverConfigPtr cfg = NULL; /* Preliminaries: find the disk we are editing, sanity checks */ @@ -15290,10 +15291,10 @@ qemuDomainBlockCopy(virDomainObjPtr vm, goto endjob; VIR_FORCE_CLOSE(fd); if (!format) - disk->mirrorFormat = disk->src.format; + mirrorFormat = disk->src.format; } else if (format) { - disk->mirrorFormat = virStorageFileFormatTypeFromString(format); - if (disk->mirrorFormat <= 0) { + mirrorFormat = virStorageFileFormatTypeFromString(format); + if (mirrorFormat <= 0) { virReportError(VIR_ERR_INVALID_ARG, _("unrecognized format '%s'"), format); goto endjob; @@ -15303,11 +15304,11 @@ qemuDomainBlockCopy(virDomainObjPtr vm, * also passed the RAW flag (and format is non-NULL), or it is * safe for us to probe the format from the file that we will * be using. */ - disk->mirrorFormat = virStorageFileProbeFormat(dest, cfg->user, - cfg->group); + mirrorFormat = virStorageFileProbeFormat(dest, cfg->user, + cfg->group); } - if (!format && disk->mirrorFormat > 0) - format = virStorageFileFormatTypeToString(disk->mirrorFormat); + if (!format && mirrorFormat > 0) + format = virStorageFileFormatTypeToString(mirrorFormat); if (VIR_STRDUP(mirror, dest) < 0) goto endjob; @@ -15333,13 +15334,12 @@ qemuDomainBlockCopy(virDomainObjPtr vm, /* Update vm in place to match changes. */ need_unlink = false; disk->mirror = mirror; + disk->mirrorFormat = mirrorFormat; mirror = NULL; endjob: if (need_unlink && unlink(dest)) VIR_WARN("unable to unlink just-created %s", dest); - if (ret < 0 && disk) - disk->mirrorFormat = VIR_STORAGE_FILE_NONE; VIR_FREE(mirror); if (!qemuDomainObjEndJob(driver, vm)) vm = NULL; -- 1.9.3

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[libvirt] [PATCH v2 for 1.2.6] build: link libvirt_conf with libxml
by Martin Kletzander 01 Jul '14

01 Jul '14

Since there is code using functions from the libxml library, libvirt_conf should have that in LIBADD so it can be linked against even without libvirt_util (which usually deals with the error itself, since libvirt_util has libxml in LIBADD). The same applies to storage_backend.c. Signed-off-by: Martin Kletzander <mkletzan(a)redhat.com> --- This is a v2 of: https://www.redhat.com/archives/libvir-list/2014-June/msg01322.html If this gets ACKed for th 1.2.6 release, please push this as well since I won't be available before DV makes the release, thank you. --- src/Makefile.am | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/src/Makefile.am b/src/Makefile.am index 35720be..047d4c6 100644 --- a/src/Makefile.am +++ b/src/Makefile.am @@ -991,6 +991,7 @@ libvirt_la_BUILT_LIBADD += libvirt_conf.la libvirt_conf_la_SOURCES = $(CONF_SOURCES) libvirt_conf_la_CFLAGS = $(AM_CFLAGS) libvirt_conf_la_LDFLAGS = $(AM_LDFLAGS) +libvirt_conf_la_LIBADD = $(LIBXML_LIBS) noinst_LTLIBRARIES += libvirt_cpu.la libvirt_la_BUILT_LIBADD += libvirt_cpu.la @@ -1452,7 +1453,7 @@ libvirt_driver_storage_impl_la_CFLAGS = \ $(AM_CFLAGS) libvirt_driver_storage_impl_la_LDFLAGS = $(AM_LDFLAGS) libvirt_driver_storage_impl_la_LIBADD = -libvirt_driver_storage_impl_la_LIBADD += $(SECDRIVER_LIBS) +libvirt_driver_storage_impl_la_LIBADD += $(SECDRIVER_LIBS) $(LIBXML_LIBS) if WITH_BLKID libvirt_driver_storage_impl_la_CFLAGS += $(BLKID_CFLAGS) libvirt_driver_storage_impl_la_LIBADD += $(BLKID_LIBS) -- 2.0.0

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[libvirt] [PATCH 0/4] Report less errors
by Ján Tomko 01 Jul '14

01 Jul '14

Some are distracting and not really helpful. Ján Tomko (4): Track privileged state in udev nodedev driver Only detect PCI Express devices as root in udev nodedev driver Introduce virFileReadAllQuiet Report one error less when getting net dev speed src/libvirt_private.syms | 1 + src/node_device/node_device_udev.c | 10 ++++++++-- src/util/virfile.c | 15 +++++++++++++++ src/util/virfile.h | 2 ++ src/util/virnetdev.c | 7 ++++--- 5 files changed, 30 insertions(+), 5 deletions(-) -- 1.8.5.5

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[libvirt] [PATCH for 1.2.6] vboxsnapshotxmltest: Don't write to a file in abs_srcdir
by Michal Privoznik 01 Jul '14

01 Jul '14

In the test, the snapshot XML is written into a file that's located under: abs_srcdir/vboxsnapshotxmldata/testResult.vbox However, the abs_srcdir doesn't have to be necessarily writable. It should have been abs_builddir instead. Moreover, the label in the func creating the file is called 'fail' while it fulfils the duty of 'cleanup' label. Signed-off-by: Michal Privoznik <mprivozn(a)redhat.com> --- tests/vboxsnapshotxmltest.c | 27 ++++++++++++++++----------- 1 file changed, 16 insertions(+), 11 deletions(-) diff --git a/tests/vboxsnapshotxmltest.c b/tests/vboxsnapshotxmltest.c index 7795688..85ef96a 100644 --- a/tests/vboxsnapshotxmltest.c +++ b/tests/vboxsnapshotxmltest.c @@ -59,42 +59,47 @@ testCompareXMLtoXMLFiles(const char *xml) char *pathResult = NULL; int ret = -1; virVBoxSnapshotConfMachinePtr machine = NULL; - if (virAsprintf(&pathResult, "%s/vboxsnapshotxmldata/testResult.vbox", - abs_srcdir) < 0) + + if (VIR_STRDUP(pathResult, + abs_builddir "/vboxsnapshotxmldata/testResult.vbox") < 0) return -1; + if (virFileMakePath(abs_builddir "/vboxsnapshotxmldata") < 0) + goto cleanup; + if (virtTestLoadFile(xml, &xmlData) < 0) - goto fail; + goto cleanup; if (!(machine = virVBoxSnapshotConfLoadVboxFile(xml, (char*)""))) - goto fail; + goto cleanup; if (virVBoxSnapshotConfSaveVboxFile(machine, pathResult) < 0) - goto fail; + goto cleanup; if (virtTestLoadFile(pathResult, &actual) < 0) - goto fail; + goto cleanup; if (unlink(pathResult) < 0) - goto fail; + goto cleanup; if (!(actual = testFilterXML(actual))) - goto fail; + goto cleanup; if (!(xmlData = testFilterXML(xmlData))) - goto fail; + goto cleanup; if (STRNEQ(actual, xmlData)) { virtTestDifference(stderr, xmlData, actual); - goto fail; + goto cleanup; } ret = 0; - fail: + cleanup: VIR_FREE(xmlData); VIR_FREE(actual); virVBoxSnapshotConfMachineFree(machine); VIR_FREE(pathResult); + rmdir(abs_builddir "/vboxsnapshotxmldata"); return ret; } -- 1.8.5.5

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[libvirt] run domain in paused state
by Vasiliy Tolstov 01 Jul '14

01 Jul '14

Hi all. I need to construct domain, run it in paused state , attach some devices and unpause it. How can i do that in libvirt api (i'm use ruby). As i see virsh have start --paused option, but how can i specify state in domain xml? -- Vasiliy Tolstov, e-mail: v.tolstov(a)selfip.ru jabber: vase(a)selfip.ru

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[libvirt] [PATCH for 1.2.6] securityselinuxlabeltest: Don't create dummy file in the srcdir
by Michal Privoznik 01 Jul '14

01 Jul '14

At the very beginning of the test we check if the underlying filesystem supports extended attributes as they are used to store fake SELinux labels. In order to check that, a dummy file is created and semi-random attribute is set. However, the file is created under: abs_srcdir "/securityselinuxlabeldata/testxattr" which has two problems: abs_srcdir is not required to be writable, so it should have been abs_builddir. The second one is - there's no "securityselinuxlabeldata" folder under abs_builddir. The problem was introduced in caf164f1. Signed-off-by: Michal Privoznik <mprivozn(a)redhat.com> --- tests/securityselinuxlabeltest.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/tests/securityselinuxlabeltest.c b/tests/securityselinuxlabeltest.c index 3699d89..455eb74 100644 --- a/tests/securityselinuxlabeltest.c +++ b/tests/securityselinuxlabeltest.c @@ -65,10 +65,11 @@ testUserXattrEnabled(void) const char *con_value = "system_u:object_r:svirt_image_t:s0:c41,c264"; char *path = NULL; if (virAsprintf(&path, "%s/securityselinuxlabeldata/testxattr", - abs_srcdir) < 0) + abs_builddir) < 0) goto cleanup; - if (virFileTouch(path, 0600) < 0) + if (virFileMakePath(abs_builddir "/securityselinuxlabeldata") < 0 || + virFileTouch(path, 0600) < 0) goto cleanup; len = setxattr(path, "user.libvirt.selinux", con_value, @@ -83,6 +84,7 @@ testUserXattrEnabled(void) cleanup: unlink(path); + rmdir(abs_builddir "/securityselinuxlabeldata"); VIR_FREE(path); return ret; } -- 1.8.5.5

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[libvirt] Facing problems in running QEMU guest agents in Windows 2008 guest machine.
by Puneet Bakshi 01 Jul '14

01 Jul '14

Hi, I have a CenOS host machine running KVM and a Windows 2008 guest machine. I am able to run "qemu-monitor-command" but not "qemu-agent-command". [root@sdsr720-14 Windows_ISO]# virsh qemu-monitor-command --hmp vm_win_05 'info network' Devices not on any VLAN: hostnet0: fd=23 peer=net0 net0: model=virtio-net-pci,macaddr=52:54:00:7f:4a:5b peer=hostnet0 [root@sdsr720-14 Windows_ISO]# virsh qemu-agent-command vm_win_05 '{"execute":"guest-ping"}' [root@sdsr720-14 Windows_ISO]# [QEMU guest installation] To install QEMU guest agent, I followed steps mentioned at following URL http://wiki.qemu.org/Features/QAPI/GuestAgent#Example_usage [Problem-1] "qemu-ga.exe -s install" runs silently, "net start qemu-ga" gave error. Following is the snippet from Windows shell. PS C:\puneet> .\qemu-ga.exe -s install PS C:\puneet> net start qemu-ga The service name is invalid. More help is available by typing NET HELPMSG 2185. PS C:\puneet>[root@sdsr720-14 Windows_ISO]# [Problem-2] When I double click the "qemu-ga.exe", it gives the following error. "The application was unable to start correctly (0xc000007b). Click Ok to close the application." I tried some other possible ways also but could not get them working. Regards, ~Puneet

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[libvirt] [PATCH] virsh: enable list inactive domain when using 'list --[no-]autostart
by Chen Hanxiao 01 Jul '14

01 Jul '14

This patch could let us know which domains are marked as [no]autostart without starting them. Signed-off-by: Chen Hanxiao <chenhanxiao(a)cn.fujitsu.com> --- tools/virsh-domain-monitor.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/tools/virsh-domain-monitor.c b/tools/virsh-domain-monitor.c index 8bd58ad..779b67b 100644 --- a/tools/virsh-domain-monitor.c +++ b/tools/virsh-domain-monitor.c @@ -1869,8 +1869,10 @@ cmdList(vshControl *ctl, const vshCmd *cmd) FILTER("with-managed-save", VIR_CONNECT_LIST_DOMAINS_MANAGEDSAVE); FILTER("without-managed-save", VIR_CONNECT_LIST_DOMAINS_NO_MANAGEDSAVE); - FILTER("autostart", VIR_CONNECT_LIST_DOMAINS_AUTOSTART); - FILTER("no-autostart", VIR_CONNECT_LIST_DOMAINS_NO_AUTOSTART); + FILTER("autostart", VIR_CONNECT_LIST_DOMAINS_AUTOSTART | + VIR_CONNECT_LIST_DOMAINS_INACTIVE); + FILTER("no-autostart", VIR_CONNECT_LIST_DOMAINS_NO_AUTOSTART | + VIR_CONNECT_LIST_DOMAINS_INACTIVE); FILTER("with-snapshot", VIR_CONNECT_LIST_DOMAINS_HAS_SNAPSHOT); FILTER("without-snapshot", VIR_CONNECT_LIST_DOMAINS_NO_SNAPSHOT); -- 1.9.0

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[libvirt] [PATCH] qemu: raise an error when trying to use readonly ide disks
by Giuseppe Scrivano 01 Jul '14

01 Jul '14

The IDE bus doesn't support readonly disks, so inform the user with an error message instead of let qemu fail with a more obscure "Device 'ide-hd' could not be initialized" error message. Closes: https://bugzilla.redhat.com/show_bug.cgi?id=1112939 Signed-off-by: Giuseppe Scrivano <gscrivan(a)redhat.com> --- src/qemu/qemu_command.c | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-) diff --git a/src/qemu/qemu_command.c b/src/qemu/qemu_command.c index 63f322a..4829176 100644 --- a/src/qemu/qemu_command.c +++ b/src/qemu/qemu_command.c @@ -3385,8 +3385,15 @@ qemuBuildDriveStr(virConnectPtr conn, disk->bus != VIR_DOMAIN_DISK_BUS_IDE) virBufferAddLit(&opt, ",boot=on"); if (disk->readonly && - virQEMUCapsGet(qemuCaps, QEMU_CAPS_DRIVE_READONLY)) + virQEMUCapsGet(qemuCaps, QEMU_CAPS_DRIVE_READONLY)) { + if (disk->bus == VIR_DOMAIN_DISK_BUS_IDE && + disk->device == VIR_DOMAIN_DISK_DEVICE_DISK) { + virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s", + _("readonly ide disks are not supported")); + goto error; + } virBufferAddLit(&opt, ",readonly=on"); + } if (disk->transient) { virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s", _("transient disks not supported yet")); -- 1.9.3

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