February 2018 - Devel - libvirt List Archives

[libvirt] ANNOUNCE: ruby-libvirt 0.7.1
by Chris Lalancette 18 Feb '18

18 Feb '18

I'm pleased to release ruby-libvirt 0.7.1. ruby-libvirt is a ruby wrapper around the libvirt API. The changelog between 0.7.0 and 0.7.1 is: * Fix a bad bug in block_resize (Marius Rieder) * Fix up some problems pointed out by clang * Fix up the tests for small semantic differences in how libvirt works Version 0.7.1 is available from http://libvirt.org/ruby: Tarball: http://libvirt.org/ruby/download/ruby-libvirt-0.7.1.tgz Gem: http://libvirt.org/ruby/download/ruby-libvirt-0.7.1.gem It is also available from rubygems.org; to get the latest version, run: $ gem install ruby-libvirt Packages for it are also built for Fedora, and will be released shortly. As usual, if you run into questions, problems, or bugs, please feel free to mail me (clalancette at gmail.com) and the libvirt mailing list. Thanks to those who contributed to this release.

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[libvirt] [jenkins-ci PATCH] projects: Don't run virt-manager's test suite on FreeBSD
by Andrea Bolognani 16 Feb '18

16 Feb '18

The libxml2 bindings are broken under Python 3.6, so we have to disable this for the time being. Signed-off-by: Andrea Bolognani <abologna(a)redhat.com> --- projects/virt-manager.yaml | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/projects/virt-manager.yaml b/projects/virt-manager.yaml index 8f3112e..e626cb0 100644 --- a/projects/virt-manager.yaml +++ b/projects/virt-manager.yaml @@ -20,6 +20,14 @@ - python-distutils-check-job: pyver: 3 parent_jobs: 'virt-manager-master-py{pyver}-build' + # libxml2's Python 3 bindings don't work properly on FreeBSD, + # so skip the test suite there for the time being. See + # https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=224902 + machines: + - libvirt-debian-9 + - libvirt-fedora-26 + - libvirt-fedora-27 + - libvirt-fedora-rawhide - python-distutils-rpm-job: pyver: 3 parent_jobs: 'virt-manager-master-py{pyver}-check' -- 2.14.3

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[libvirt] [PATCH 0/6] Alternative way of turning NWFilterObj(list) into virObject
by Michal Privoznik 16 Feb '18

16 Feb '18

This is heavily based on John's work (except 1/6). The difference to his patches is in using virObjectRecursiveLockableNew() for recursive locks instead of RW locks and lock promoting. Also, in 6/6 I was more confident and removed driver lock from define/undefine APIs. John Ferlan (1): nwfilter: Remove need for nwfilterDriverLock in some API's Michal Privoznik (5): virObject: use virReportSystemError if applicable virObject: Introduce virObjectRecursiveLockableNew virNWFilterObj: Turn into virObjectLockable conf: Introduce and use virNWFilterObjEndAPI nwfilter: Convert _virNWFilterObjList to use virObjectRWLockable cfg.mk | 1 - src/conf/virdomainobjlist.c | 3 +- src/conf/virnwfilterobj.c | 504 +++++++++++++++++++++------------ src/conf/virnwfilterobj.h | 12 +- src/libvirt_private.syms | 5 +- src/nwfilter/nwfilter_driver.c | 65 ++--- src/nwfilter/nwfilter_gentech_driver.c | 11 +- src/util/virobject.c | 30 +- src/util/virobject.h | 4 + 9 files changed, 382 insertions(+), 253 deletions(-) -- 2.13.6

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[libvirt] [PATCH v5 0/3] nwfilter common object adjustments
by John Ferlan 15 Feb '18

15 Feb '18

v4: https://www.redhat.com/archives/libvir-list/2017-December/msg00282.html But more recently reviewed: https://www.redhat.com/archives/libvir-list/2018-February/msg00022.html https://www.redhat.com/archives/libvir-list/2018-February/msg00015.html https://www.redhat.com/archives/libvir-list/2018-February/msg00016.html Changes since v4: Pushed former patch 1/4 since it was ACK'd... - Patch 2: * Return NULL on error in virNWFilterObjListFindInstantiateFilter instead of the somewhat obfuscated @obj which would be NULL as a result of the virNWFilterObjEndAPI * Use virNWFilterObjDemoteFromWrite prior to return obj when the path was returning a write locked object. - Patch 3: * Reword the comment prior to virNWFilterObjListFindByNameLocked in order to better explain what's happening * Ensure the write lock occurs while the nwfilters lock is held. * Fix the virNWFilterCountData setup * Fix the formatting for the @def in virNWFilterObjListExportCallback (there was an extra space) - Patch 4: * No change, still needs the official ACK/R-b though NB: Testing done... * Ran/passed the nwfilter concurrency test w/ the changes * Ran/passed the Avocado nwfilter_update_lock, nwfilter_update_vm_running, and virsh.nwfilter_undefine.error_test.acl_test tests - these were the ones with the most nwfilter "interaction" that would cause issues at various points in time during installation. John Ferlan (3): nwfilter: Convert _virNWFilterObj to use virObjectRWLockable nwfilter: Convert _virNWFilterObjList to use virObjectRWLockable nwfilter: Remove need for nwfilterDriverLock in some API's src/conf/virnwfilterobj.c | 540 +++++++++++++++++++++++---------- src/conf/virnwfilterobj.h | 11 +- src/libvirt_private.syms | 3 +- src/nwfilter/nwfilter_driver.c | 71 ++--- src/nwfilter/nwfilter_gentech_driver.c | 11 +- 5 files changed, 427 insertions(+), 209 deletions(-) -- 2.13.6

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[libvirt] [PATCH 0/3] Fix trouble with <backingStore> in virsh detach-disk
by Peter Krempa 15 Feb '18

15 Feb '18

We've created malformed <auth> element for RBD images in backing store of a disk which failed parsing and broke detaching disks via virsh. Fix it by not parsing auth data at all from the disk backing images and remove the <backingStore> element when constructing the XML for disk detach. Peter Krempa (3): virsh: detach-disk: Add --print-xml switch util: storage: Remove detected authentication data for backing chains virsh: Remove <backingStore> sub-element in virshFindDisk src/util/virstoragefile.c | 8 ++++++++ tests/virstoragetest.c | 15 +++------------ tools/virsh-domain.c | 44 +++++++++++++++++++++++++++++++++----------- tools/virsh.pod | 4 ++++ 4 files changed, 48 insertions(+), 23 deletions(-) -- 2.15.0

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[libvirt] [jenkins-ci PATCH] jobs: Set $PYTHONPATH for python-distutils jobs
by Andrea Bolognani 15 Feb '18

15 Feb '18

Since we install Python modules under $VIRT_PREFIX, we need to set $PYTHONPATH or the interpreter won't be able to locate them. This is currently being done per-worker in the Jenkins Web interface. However, now that we've introduced Python 3 builds, depending on the project and the OS, we might be using any of Python 2.7, 3.4, 3.5 and 3.6, which means we can't have a single $PYTHONPATH anymore: in particular, while it's okay to have non-esisting directories in $PYTHONPATH, we have to make sure that a Python 3 interpreter will never try to use a Python 2 module and vice versa. To solve the issue, we use a fairly large hammer: we set $PYTHONPATH at the job level, and include all reasonable minor versions for the Python major version (pyver) the job is using, even if they don't yet exist. Signed-off-by: Andrea Bolognani <abologna(a)redhat.com> --- Another approach would be to use something like T=$VIRT_PREFIX/lib/python{pyver}.4/site-packages T=$T:$VIRT_PREFIX/lib64/python{pyver}.4/site-packages T=$T:$VIRT_PREFIX/lib/python{pyver}.5/site-packages T=$T:$VIRT_PREFIX/lib64/python{pyver}.5/site-packages T=$T:$VIRT_PREFIX/lib/python{pyver}.6/site-packages T=$T:$VIRT_PREFIX/lib64/python{pyver}.6/site-packages T=$T:$VIRT_PREFIX/lib/python{pyver}.7/site-packages T=$T:$VIRT_PREFIX/lib64/python{pyver}.7/site-packages export PYTHONPATH=$T but that's just a different kind of ugly :/ jobs/python-distutils.yaml | 3 +++ 1 file changed, 3 insertions(+) diff --git a/jobs/python-distutils.yaml b/jobs/python-distutils.yaml index ff68c29..510769e 100644 --- a/jobs/python-distutils.yaml +++ b/jobs/python-distutils.yaml @@ -42,6 +42,7 @@ - shell: | {global_env} {local_env} + export PYTHONPATH=$VIRT_PREFIX/lib/python{pyver}.4/site-packages:$VIRT_PREFIX/lib64/python{pyver}.4/site-packages:$VIRT_PREFIX/lib/python{pyver}.5/site-packages:$VIRT_PREFIX/lib64/python{pyver}.5/site-packages:$VIRT_PREFIX/lib/python{pyver}.6/site-packages:$VIRT_PREFIX/lib64/python{pyver}.6/site-packages:$VIRT_PREFIX/lib/python{pyver}.7/site-packages:$VIRT_PREFIX/lib64/python{pyver}.7/site-packages {command_pre_build} python{pyver} ./setup.py build python{pyver} ./setup.py install --prefix=$VIRT_PREFIX @@ -83,6 +84,7 @@ - shell: | {global_env} {local_env} + export PYTHONPATH=$VIRT_PREFIX/lib/python{pyver}.4/site-packages:$VIRT_PREFIX/lib64/python{pyver}.4/site-packages:$VIRT_PREFIX/lib/python{pyver}.5/site-packages:$VIRT_PREFIX/lib64/python{pyver}.5/site-packages:$VIRT_PREFIX/lib/python{pyver}.6/site-packages:$VIRT_PREFIX/lib64/python{pyver}.6/site-packages:$VIRT_PREFIX/lib/python{pyver}.7/site-packages:$VIRT_PREFIX/lib64/python{pyver}.7/site-packages python{pyver} ./setup.py test publishers: - email: @@ -121,6 +123,7 @@ - shell: | {global_env} {local_env} + export PYTHONPATH=$VIRT_PREFIX/lib/python{pyver}.4/site-packages:$VIRT_PREFIX/lib64/python{pyver}.4/site-packages:$VIRT_PREFIX/lib/python{pyver}.5/site-packages:$VIRT_PREFIX/lib64/python{pyver}.5/site-packages:$VIRT_PREFIX/lib/python{pyver}.6/site-packages:$VIRT_PREFIX/lib64/python{pyver}.6/site-packages:$VIRT_PREFIX/lib/python{pyver}.7/site-packages:$VIRT_PREFIX/lib64/python{pyver}.7/site-packages sed -i -e 's/BuildRequires: libvirt.*devel.*//' *.spec.in python{pyver} ./setup.py rpm publishers: -- 2.14.3

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[libvirt] [PATCH 0/3] virSysinfo: Introduce SMBIOS type 3 support
by Zhuangyanying 15 Feb '18

15 Feb '18

From: Zhuang Yanying <ann.zhuangyanying(a)huawei.com> Some applications inside VM need to access SMBIOS Chassis Asset Tag, which should be emulated. access inside VM (for example) Linux: /sys/class/dmi/id/chassis_asset_tag. Windows: (Get-WmiObject Win32_SystemEnclosure).SMBIOSAssetTag wirhin Windows PowerShell. It has already been realized in qemu: SMBIOS: Build aggregate smbios tables and entry point https://git.qemu.org/?p=qemu.git;a=commit;h=c97294ec1b9e36887e119589d456557… but not in libvirt. we realize it here. As an example, you could use something like <chassis> <entry name='manufacturer'>Huawei</entry> <entry name='version'>To be filled by O.E.M.</entry> <entry name='serial'>To be filled by O.E.M.</entry> <entry name='asset'>To be filled by O.E.M.</entry> <entry name='sku'>Type3Sku1</entry> </chassis> BTW: I'll be on vacation for china spring festival for the next week, I'll response as soon as I get back if there's any modification needed. Zhuang Yanying (3): conf: add support for setting Chassis SMBIOS data fields qemu: add support for generating SMBIOS Chassis strings command line news: add support for setting Chassis SMBIOS data fields docs/formatdomain.html.in | 23 +++++++ docs/news.xml | 5 ++ docs/schemas/domaincommon.rng | 22 ++++++ src/conf/domain_conf.c | 55 +++++++++++++++ src/libvirt_private.syms | 1 + src/qemu/qemu_command.c | 51 ++++++++++++++ src/util/virsysinfo.c | 133 +++++++++++++++++++++++++++++++++++- src/util/virsysinfo.h | 13 ++++ tests/qemuxml2argvdata/smbios.args | 2 + tests/qemuxml2argvdata/smbios.xml | 7 ++ tests/qemuxml2xmloutdata/smbios.xml | 7 ++ 11 files changed, 318 insertions(+), 1 deletion(-) -- 1.8.3.1

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[libvirt] Should we switch to a different JSON library?
by Martin Kletzander 14 Feb '18

14 Feb '18

Hi everyone, so we are using yajl for parsing JSON. However there are some reasons why we might consider switching to another one: 1) It is basically dead upstream 2) We're just using the lexer part of it 3) We only use it for parsing 4) The are workarounds for it in the code So I looked at some options and found few other libraries, I only took those that are widely available (read: I checked if some random downstream distro has them), however most of them were not very much usable. Except one. But here's the list of few others that didn't look that bad either. All are MIT-licensed, try to be thread-safe and support pkg-config: - libfastjson [1] - from rsyslog community, optimized for working with logs, used almost only by rsyslog, it's supposed to have doxygen docs, they switched to libfastjson from json-c due to some problems with it (performance, ref counting bug, ...) - json-c [2] - looked abandoned until I looked at the proper github page, "documentation" in doxygen - Jansson [3] - I really like this one. The API seems very intuitive, it has nice documentation [4] in readthedocs (and I'm not talking about the visual style, but how easy is to find information), it can be used for formatting JSON in a similar way we are doing it. It has json_auto_t (optional) type that uses the attribute cleanup for automatic scope dereference (just in case we want to use it), it has iterators... did I tell you I like this one a lot? What do you (others) think of switching the JSON library? Do you know about any other projects that could be used considering license, platform support, etc.? Also feel free to fix any mistakes I might have posted. I double-checked it, but you know, "trust, but verify". Have a nice day, Martin [1] https://github.com/rsyslog/libfastjson [2] https://github.com/json-c/json-c [3] http://www.digip.org/jansson/ [4] https://jansson.readthedocs.io/

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[libvirt] [PATCH 0/6] spec: Misc cleanups and improvements
by Jiri Denemark 14 Feb '18

14 Feb '18

Jiri Denemark (6): spec: Enable fuse only if LXC is enabled spec: Build virt-login-shell iff LXC driver is enabled spec: Drop checks for old Fedora releases spec: Prepare for future RHEL spec: Fix indentation in daemon's triggerpostun spec: Drop overlapping triggers libvirt.spec.in | 64 ++++++++++++++++++++++----------------------------------- 1 file changed, 25 insertions(+), 39 deletions(-) -- 2.16.1

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[libvirt] [PATCH v2 0/2] Fix parsing and formatting of 'UnixSocketAddress' qapi type
by Peter Krempa 14 Feb '18

14 Feb '18

v2: Don't 'fix' it for gluster disks which use old syntax not conforming to the schema in qemu. Peter Krempa (2): storage: Fix formatting and parsing of qemu type 'UnixSocketAddress' virstoragetest: Add test case for NBD over unix socket with new syntax src/qemu/qemu_block.c | 13 +++++++++++-- src/util/virstoragefile.c | 8 +++++++- tests/virstoragetest.c | 9 +++++++++ 3 files changed, 27 insertions(+), 3 deletions(-) -- 2.15.0

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