Join the worker thread no matter if it is running or zombie already.
With current implementation the thread is joined iff @running is true.
However, when worker executes the last line, @running is set to false.
Hence qemuMonitorTestFree() won't join it (and free resources) even
though we can clearly see worker has run (nobody else sets @running =
false).
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Right now, we are testing qemuMonitorSystemPowerdown instead of
qemuMonitorJSONSystemPowerdown. It makes no harm, as both functions have
the same header and the former is just a wrapper over the latter. But we
should be consistent as we're testing the JSON functions only in here.
The XML parser reserves 'vnet' as a prefix for automatically
generated NIC device names. Switch the veth device creation
to use this prefix, so it does not have to worry about clashes
with user specified names in the XML.
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
The veth device creation code run in two steps, first it looks
for two free veth device names, then it runs ip link to create
the veth pair. There is an obvious race between finding free
names and creating them, when guests are started in parallel.
Rewrite the code to loop and re-try creation if it fails, to
deal with the race condition.
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
If veth device allocation has a fatal error, the veths
array may contain NULL device names. Avoid calling the
virNetDevVethDelete function on such names.
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
The kernel automatically destroys veth devices when cleaning
up the container network namespace. During normal shutdown, it
is thus likely that the attempt to run 'ip link del vethN'
will fail. If it fails, check if the device exists, and avoid
reporting an error if it has gone. This switches to use the
virCommand APIs instead of virRun too.
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
During container cleanup there is a race where the kernel may
have destroyed the veth device before we try to set it offline.
This causes log error messages. Given that we're about to
delete the device entirely, setting it offline is pointless.
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
When querying for kvm, we try to find 'enabled' field. Hence the error
message should report we haven't found 'enabled' and not 'running'
(which is not even in the reply). Probably a typo or copy-paste error.
The qemuDomainChangeNet() is called when 'virsh update-device' is
invoked on a NIC. Currently, we fail to update the QoS even though
we have routines for that.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
So far the virNetDevBandwidthEqual() expected both ->in and ->out items
to be allocated for both @a and @b compared. This is not necessary true
for all our code. For instance, running 'update-device' twice over a NIC
with the very same XML results in SIGSEGV-ing in this function.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
This should resolve:
https://bugzilla.redhat.com/show_bug.cgi?id=1012085
libvirt previously recognized NFS, GFS2, OCFS2, and AFS filesystems as
"shared", and thus eligible for exceptions to certain rules/actions
about chowning image files before handing them off to a guest. This
patch widens the definition of "shared filesystem" to include SMB and
CIFS filesystems (aka "Windows file sharing"); both of these use the
same protocol, but different drivers so there are different magic
numbers for each.
This test is there to ensure that our capabilities detection code isn't
broken somehow.
How to gather test data:
Firstly, the data is split into two separate files. The former (with
suffix .replies) contains all the qemu replies. This is very fragile as
introducing a new device can mean yet another monitor command and hence
edit of this file in the future. But there's no better way of doing
this. To get this data simply turn on debug logs and copy all the
QEMU_MONITOR_IO_PROCESS lines. But be careful to not copy incomplete
ones (yeah, we report some incomplete lines too). Long story short, at
the libvirtd startup, a dummy qemu is spawn to get all the capabilities.
The latter (with suffix .caps) contains capabilities XML. Just start a
domain and copy the corresponding part from its state XML file.
Including <qemuCaps> tag.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
In a few cases we might want to not care if monitor command executed on
the mocked monitor matches the one we have reply for. Sounds crazy, but
if we just want monitor to return certain values (e.g. read from a file)
there is no need to care about command match.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Currently, when creating a new mocked monitor, the greeting can't be
chosen. This is crucial for next patches, because some info as qemu
version is obtained in the greeting message.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
This basically covers the talking-to-monitor part of
virQEMUCapsInitQMP. The patch itself has no real value,
but it creates an entity to be tested in the next patches.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
We forgot to do cleanup when lxcContainerMountFSTmpfs
failed to bind fs as read-only.
Signed-off-by: Chen Hanxiao <chenhanxiao@cn.fujitsu.com>
Signed-off-by: Eric Blake <eblake@redhat.com>
The libvirtd server pushes data out to clients. It does not
know what protocol version the client might have, so must be
conservative and use the old payload limits. ie send no more
than 256kb of data per packet.
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
The problem is described by [0] but its effect on libvirt is that
starting a container with a full distro running systemd after having
stopped it simply fails.
The container cleanup now calls the machined Terminate function to make
sure that everything is in order for the next run.
[0]: https://bugs.freedesktop.org/show_bug.cgi?id=68370
mmap's offset must be aligned to page size or mapping will fail.
mmap-based safezero is only used if posix_fallocate isn't available.
Signed-off-by: Oskari Saarenmaa <os@ohmu.fi>
Fixed the retrieval of the AdapterId from the AdapterName of the
hostdev source so it does return an error instead of leaving the
adapter_id uninitialized.
Signed-off-by: Boris Fiuczynski <fiuczy@linux.vnet.ibm.com>
Reviewed-by: Viktor Mihajlovski <mihajlov@linux.vnet.ibm.com>
The change in ef29de14c3 that introduced
better error logging from qemu introduced a warning from coverity about
unused return value from lseek. Silence this warning and fix typo in the
corresponding error message.
Reported by: John Ferlan
The memory size in virNodeGetInfo python API binding is reported in MiB
instead of KiB (like we have in C struct). However, there already might
be applications out there relying on this inconsistence so we can't
simply fix it. Document this sad fact as known bug.
Currently the VMware version check code only supports two types of
VMware backends, Workstation and Player. But in the near future we will
have an additional one so we need to support more. Additionally, we
discover and cache the path to the vmrun binary so we should use that
path when using the corresponding binary from the VMware VIX SDK.
