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Working with virTypedParameters in clients written in C is ugly and
requires all clients to duplicate the same code. This set of APIs makes
this code for manipulating with virTypedParameters integral part of
libvirt so that all clients may benefit from it.
When virStorageBackendLogicalCreateVol() creates a snapshot for a
logical volume with backingStore element, it fails with the message
below:
2013-01-17 03:10:18.869+0000: 1967: error : virCommandWait:2345 :
internal error Child process (/sbin/lvcreate --name lvm-snapshot -L 51200K
-s=/dev/lvm-pool/lvm-volume) unexpected exit status 3: /sbin/lvcreate:
invalid option -- '=' Error during parsing of command line.
This is because virCommandAddArgPair() uses '=' to connect the two
parameters, it's unsuitable for -s option of the lvcreate.
Signed-off-by: Atsushi Kumagai <kumagai-atsushi@mxc.nes.nec.co.jp>
A build on FreeBSD failed with:
util/virportallocator.c:108: error: storage size of 'addr' isn't known
util/virportallocator.c:123: error: 'INADDR_ANY' undeclared (first use in this function)
It turns out that while POSIX allows sockaddr_in to leak in through
<arpa/inet.h> (the way Linux does it), it is not mandatory, and
conforming applications are required to get it through <netinet/in.h>.
* src/util/virportallocator.c: Include header for struct
sockaddr_in.
* tests/virportallocatortest.c: Likewise.
The fetch of 'ipdef' in networkRefreshDhcpDaemon() when the loop to fill
in ipv4def fails to find an ipv4 address with dhcp defined. The filled in
ipdef value was not used. Code was made unnecessary with commit it 2d5cd1.
The driver mutex was unlocked in qemuDomainModifyDeviceFlags before
entering qemuDomainObjBeginJobWithDriver where it will be unlocked once
more leaving it in an undefined state. The result was that two
threads were simultaneously looking up the domain hash table during
multiple parallel device attach/detach operations.
Luckily this triggered a virHashIterationError.
Signed-off-by: Viktor Mihajlovski <mihajlov@linux.vnet.ibm.com>
When starting a VM, /var/log/messages was spammed with the following message:
xt_physdev: using --physdev-out in the OUTPUT, FORWARD and POSTROUTING chains for non-bridged traffic is not supported anymore.
With each extra VM I start, the messages get amplified
exponentially. This results in longer starting times every new VM,
relative the the previously started VM. When I ran a test with
starting 100 equal VM's, the first VM started in about 2 seconds, the
100th VM took 48 seconds to start. I'm running a vanilla 3.7.1 kernel,
but I have the same issue on VM hosts with kernel 3.2.28 or 3.2.0,
running libvirt 0.9.12 and 0.9.8 respectively.
Looking into the warning, it seemed that iptables need an extra argument,
--physdev-is-bridged, in commands like:
iptables -A libvirt-out -m physdev --physdev-is-bridged --physdev-out vnet99 -g FP-vnet99
With that, the warnings in /var/log/messages are gone and running the
test again proved the 100th VM started in 3.8 seconds.
This resolves:
https://bugzilla.redhat.com/show_bug.cgi?id=895294
The symptom was that attempts to modify a network device using
virDomainUpdateDeviceFlags() would fail if the original device had a
<boot> element (e.g. "<boot order='1'/>"), even if the updated device
had the same <boot> element. Instead, the following error would be logged:
cannot modify network device boot index setting
It's true that it's not possible to change boot order (internally
known as bootIndex) of a live device; qemuDomainChangeNet checks for
that, but the problem was that the information it was checking was
incorrect.
Explanation:
When a complete domain is parsed, a global (to the domain) "bootMap"
is passed down to the parse for each device; the bootMap is used to
make sure that devices don't have conflicting settings for their boot
orders.
When a single device is parsed by itself (as in the case of
virDomainUpdateDeviceFlags), there is no global bootMap that would be
appropriate to send, so NULL is sent instead. However, although the
lowest level function that parses just the boot order *does* simply
skip the sanity check in that case, the next higher level
"virDomainDeviceInfoParseXML" function refuses to call down to the
lower "virDomainDeviceBootParseXML" if bootMap is NULL. So, the boot
order is never set in the "new" device object, and when it is compared
to the original (which does have a boot order), they don't match.
The fix is to patch virDomainDeviceInfoParseXML to not care about
bootMap, and just always call virDomainDeviceInfoBootParseXML whenever
there is a <boot> element. When we are only parsing a single device,
we don't care whether or not any specified boot order is consistent
with the rest of the domain; we will always do this check later (in
the current case, we do it by verifying that the net bootIndex exactly
matches the old bootIndex).
The bandwidth plug and unplug functions were assuming that an
interface's bandwidth setting was always specified directly in the
domain's <interface> definition, but that's not necessarily true - it
could have been obtained from a <portgroup> definition in the network
definition. This patch fixes those functions to use
virDomainNetGetActualBandwidth(), which gets the bandwidth pointer
from iface->data.network.actual if it exists, otherwise returns
iface->bandwidth.
Remove extraneous check for 'netdef' when dereferencing for vlan.nTags.
Prior code would already check if netdef was NULL.
Coverity complained about a path where the 'vlan' was potentially valid,
but a prior checks may not have allocated 'iface->data.network.actual',
so like other paths it needs to be allocated on the fly.
Move the copying of vlan up earlier in networkAllocateActualDevice, so
that actual.type gets properly set.
Since the first assignment to vlan is redundant except in the case of
jumping immediately to validate from the start of the function,
eliminate its initial setting at the top of the function in favor of
calling the helper function virDomainNetGetActualVlan() (which doesn't
depend on the local vlan pointer being initialized) down at validate:
Signed-off-by: Laine Stump <laine@redhat.com>
When creating the virClass object for virNetClient, we specified
virObject as the parent instead of virObjectLockable
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
The QEMU driver default max port is 65535, but it then increments
this by 1 to 65536. This maps to 0 in an unsigned short :-( This
was apparently done so that for() loops could use "< max" instead
of "<= max". Remove this insanity and just make the loop do the
right thing.
The api builder always associates comments to the last member it read,
not to the current member even if there was a comment for the previous
member and a comma was already seen.
This has the effect that the comment for the previous member gets
overwritten and the current member has no comment at all.
that broke the build like:
CC libvirt_conf_la-domain_conf.lo
conf/domain_conf.c: In function 'virDomainVcpuPinAdd':
conf/domain_conf.c:11920:29: error: 'vpcupin' undeclared (first use in this function)
conf/domain_conf.c:11920:29: note: each undeclared identifier is reported only once for each function it appears in
make[3]: *** [libvirt_conf_la-domain_conf.lo] Error 1
Commit dfa1e1dd added functions whose definitions do not conform
to the style used in the libxl driver. Change these functions to
be consistent throughout the driver.
In commit c4bbaaf8, caps->arch was checked uninitialized, rendering the
whole check useless.
This patch moves the conditional setting of QEMU_CAPS_NO_ACPI to
qemuCapsInitQMP, and removes the no longer needed exception for S390.
It also clears the flag for all non-x86 archs instead of just S390 in
qemuCapsInitHelp.
