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The arguments passed to the thread function must be allocated on
the heap, rather than the stack, since it is possible for the
spawning thread to continue before the new thread runs at all.
In such a case, it is possible that the area of stack where the
thread args were stored is overwritten.
* src/util/threads-pthread.c, src/util/threads-win32.c: Allocate
thread arguments on the heap
As virsh help supports both command and command group now,
update "cmdHelp" to print consite help, (this patch is
increment of "7829052757953023b0826e0293ffe18ed4ab89e9").
And also remove redundant empty line in "vshUsage".
* tools/virsh.c
Use macvtap specific functions depending on WITH_MACVTAP.
Use #if instead of #ifdef to check for WITH_MACVTAP, because
WITH_MACVTAP is always defined with value 0 or 1.
Also export virVMOperationType{To|From}String unconditional,
because they are used unconditional in the domain config code.
The output was previously:
-c | --connect <uri> hypervisor connection URI
-r | --readonly connect readonly
-d | --debug <num> debug level [0-5]
-h | --help this help
-q | --quiet quiet mode
-t | --timing print timing information
-l | --log <file> output logging to file
-v | --version[=short] program version
-V | --version=long version and full options
(note the blank line between the --version types)
This patch removes the extra blank line.
When dumping a domain, it's reasonable to save dump-file in raw format
if dump format is misconfigured or the corresponding compress program
is not available rather then fail dumping.
Change the virsh help out. The new output of "virsh help" and
"virsh --help" will be like:
Secret (help keyword 'secret'):
secret-define define or modify a secret from an XML file
secret-dumpxml secret attributes in XML
secret-set-value set a secret value
secret-get-value Output a secret value
secret-undefine undefine a secret
secret-list list secrets
Snapshot (help keyword 'snapshot'):
snapshot-create Create a snapshot
snapshot-current Get the current snapshot
snapshot-delete Delete a domain snapshot
snapshot-dumpxml Dump XML for a domain snapshot
snapshot-list List snapshots for a domain
snapshot-revert Revert a domain to a snapshot
Also support output help information of specified command group, e.g.
% ./tools/virsh help "Network Filter"
Network Filter (help keyword 'filter'):
nwfilter-define define or update a network filter from an XML file
nwfilter-undefine undefine a network filter
nwfilter-dumpxml network filter information in XML
nwfilter-list list network filters
nwfilter-edit edit XML configuration for a network filter
Each group has a help keyword, e.g.
% ./tools/virsh help filter
Network Filter (help keyword 'filter'):
nwfilter-define define or update a network filter from an XML file
nwfilter-undefine undefine a network filter
nwfilter-dumpxml network filter information in XML
nwfilter-list list network filters
nwfilter-edit edit XML configuration for a network filter
* tools/virsh.c:
- introduce new struct "vshCmdGrp" and macros to define the groups.
- split previous array "commands" into small arrays which are orgnized
by group
- changed some functions, e.g. "vshCmdDefSearch"
- Added new functions, e.g. "vshCmdGrpSearch"
- commands of each group are in "alphabetical order" now.
- command groups are in "alphabetical order" now.
- the commands are categorized with reference of
http://wiki.libvirt.org/page/VirshHelpV2 (by Justin)
- the modifications doesn't affect tests
* TODO:
- doc
This patch introduces the usage of the pre-associate state of the IEEE 802.1Qbg standard on incoming VM migration on the target host. It is in response to bugzilla entry 632750.
https://bugzilla.redhat.com/show_bug.cgi?id=632750
For being able to differentiate the exact reason as to why a macvtap device is being created, either due to a VM creation or an incoming VM migration, I needed to pass that reason as a parameter from wherever qemudStartVMDaemon is being called in order to determine whether to send an ASSOCIATE (VM creation) or a PRE-ASSOCIATE (incoming VM migration) towards lldpad.
I am also fixing a problem with the virsh domainxml-to-native call on the way.
Gerhard successfully tested the patch with a recent blade network 802.1Qbg-compliant switch.
The patch should not have any side-effects on the 802.1Qbh support in libvirt, but Roopa (cc'ed) may want to verify this.
We currently use the next free veid although there's one given in the
domain xml. This currently breaks defining new domains since vmdef->name
and veid don't match leading to the following error later on:
error: Failed to define domain from 110.xml
error: internal error Could not set UUID
Since silently ignoring vmdef->name is not nice respect it instead. We
avoid veid collisions in the upper levels already.
This reverts commit
Log all errors at level INFO to stop polluting syslog
04bd0360f3.
and makes virRaiseErrorFull() log errors at debug priority
when called from inside libvirtd. This stops libvirtd from
polluting it's own log with client errors at error priority
that'll be reported and logged on the client side anyway.
When we set migrate_speed by json, we receive the following
error message:
libvirtError: internal error unable to execute QEMU command
'migrate_set_speed': Invalid parameter type, expected: number
The reason is that: the arguments of migrate_set_speed
by json is json number, not json string.
Signed-off-by: Wen Congyang <wency@cn.fujitsu.com>
The dominfo.py example script has a bogus check for /proc/xen
existing. The default connection cannot be assumed to be Xen
any more
* examples/python/dominfo.py: Remove check for Xen
The nodeinfo structure includes
nodes : the number of NUMA cell, 1 for uniform mem access
sockets : number of CPU socket per node
cores : number of core per socket
threads : number of threads per core
which does not work well for NUMA topologies where each node does not
consist of integral number of CPU sockets.
We also have VIR_NODEINFO_MAXCPUS macro in public libvirt.h which
computes maximum number of CPUs as (nodes * sockets * cores * threads).
As a result, we can't just change sockets to report total number of
sockets instead of sockets per node. This would probably be the easiest
since I doubt anyone is using the field directly. But because of the
macro, some apps might be using sockets indirectly.
This patch leaves sockets to be the number of CPU sockets per node (and
fixes qemu driver to comply with this) on machines where sockets can be
divided by nodes. If we can't divide sockets by nodes, we behave as if
there was just one NUMA node containing all sockets. Apps interested in
NUMA should consult capabilities XML, which is what they probably do
anyway.
This way, the only case in which apps that care about NUMA may break is
on machines with funky NUMA topology. And there is a chance libvirt
wasn't able to start any guests on those machines anyway (although it
depends on the topology, total number of CPUs and kernel version).
Nothing changes at all for apps that don't care about NUMA.
security_context_t happens to be a typedef for char*, and happens to
begin with a string usable as a raw context string. But in reality,
it is an opaque type that may or may not have additional information
after the first NUL byte, where that additional information can
include pointers that can only be freed via freecon().
Proof is from this valgrind run of daemon/libvirtd:
==6028== 839,169 (40 direct, 839,129 indirect) bytes in 1 blocks are definitely lost in loss record 274 of 274
==6028== at 0x4A0515D: malloc (vg_replace_malloc.c:195)
==6028== by 0x3022E0D48C: selabel_open (label.c:165)
==6028== by 0x3022E11646: matchpathcon_init_prefix (matchpathcon.c:296)
==6028== by 0x3022E1190D: matchpathcon (matchpathcon.c:317)
==6028== by 0x4F9D842: SELinuxRestoreSecurityFileLabel (security_selinux.c:382)
800k is a lot of memory to be leaking.
* src/storage/storage_backend.c
(virStorageBackendUpdateVolTargetInfoFD): Avoid leak on error.
* src/security/security_selinux.c
(SELinuxReserveSecurityLabel, SELinuxGetSecurityProcessLabel)
(SELinuxRestoreSecurityFileLabel): Use correct function to free
security_context_t.
Making this change makes it easier to spot the memory leaks
that will be fixed in the next patch.
* cfg.mk (sc_prohibit_xmlGetProp): New rule.
* .x-sc_prohibit_xmlGetProp: New exception.
* Makefile.am (EXTRA_DIST): Ship exception file.
* tools/virsh.c (cmdDetachInterface, cmdDetachDisk): Adjust
offenders.
* src/conf/storage_conf.c (virStoragePoolDefParseSource):
Likewise.
* src/conf/network_conf.c (virNetworkDHCPRangeDefParseXML)
(virNetworkIPParseXML): Likewise.
* Makefile.am (EXTRA_DIST): Factor exceptions files...
(syntax_check_excpetions): into new list. Include recently added
exceptions.
* cfg.mk (sc_x_sc_dist_check): New check, copied from coreutils.
virConnectClose calls virUnrefConnect which in turn closes
all open drivers when the refcount of that connection dropped
to zero. This works fine when you free all other objects that
hold a ref to the connection before you close it, because in
this case virUnrefConnect is the one that removes the last
ref to the connection.
But it doesn't work when you close the connection first before
freeing the other objects. This is because the other virUnref*
functions call virReleaseConnect when they detect that the
connection's refcount dropped to zero. In this case another
virUnref* function (different from virUnrefConnect) removes the
last ref to the connection. This results in not closing the
open drivers and leaking things that should have been cleaned
up in the driver close functions.
To fix this move the driver close calls to virReleaseConnect.
Except LXC and UML driver, implementations of all other drivers
simply return 0, because these drivers doesn't have config both
in memory and on disk, no need to track if the domain of these
drivers updated or not.
Rename "xenUnifiedDomainisPersistent" to "xenUnifiedDomainIsPersistent"
* esx/esx_driver.c
* lxc/lxc_driver.c
* opennebula/one_driver.c
* openvz/openvz_driver.c
* phyp/phyp_driver.c
* test/test_driver.c
* uml/uml_driver.c
* vbox/vbox_tmpl.c
* xen/xen_driver.c
* xenapi/xenapi_driver.c
introduce new public API "virDomainIsUpdated"
* src/conf/domain_conf.h (new member "updated" for "virDomainObj")
* src/libvirt_public.syms
* include/libvirt/libvirt.h.in
gnulib wraps Windows' SOCKET handle based send() and recv() functions
into file descriptor based ones that are used in libvirt.
Even though GnuTLS is using gnulib too, it explicitly doesn't use
gnulib's replacement functions on Windows. By default GnuTLS uses the
SOCKET handle based send() and recv(). This makes gnutls_handshake()
fail internally with a WSAENOTSOCK error because libvirt passes a
file descriptor; GnuTLS needs the SOCKET handle.
To avoid this mismatch make sure that GnuTLS uses gnulib's replacment
functions, by setting custom pull() and push() functions for GnuTLS.
Without this fix, the test suite doesn't print error messages when a libvirt
function fails. Additionally, only print error reports if DEBUG or VERBOSE
requested.
The stdio.h header has a function called 'remove' declared. This
clashes with the 'remove' parameter in virShrinkN
* src/util/memory.c: Rename 'remove' to 'toremove'
virsh was not checking for a error code when listing storage
volumes. So when listing volumes in a pool that was shutoff,
no output was displayed
* tools/virsh.c: Fix error handling when listing volumes
The SCSI volumes currently get a name like '17:0:0:1' based
on $host:$bus:$target:$lun. The names are intended to be unique
per pool and stable across pool restarts. The inclusion of the
$host component breaks this, because the $host number for iSCSI
pools is dynamically allocated by the kernel at time of login.
This changes the name to be 'unit:0:0:1', ie removes the leading
host component. The 'unit:' prefix is just to ensure the volume
name doesn't start with a number and make it clearer when seen
out of context.
* src/storage/storage_backend_scsi.c: Improve volume name
field value stability and uniqueness
Many operations are not valid on inactive storage pools. The
storage driver is currently returning VIR_ERR_INTERNAL_ERROR
in these cases, rather than the more suitable error code
VIR_ERR_OPERATION_INVALID
* src/storage/storage_driver.c: Fix error code when pool
is not active
When libvirt starts up all storage pools default to the inactive
state, even if the underlying storage is already active on the
host. This introduces a new API into the internal storage backend
drivers that checks whether a storage pool is already active. If
the pool is active at libvirtd startup, the volume list will be
immediately populated.
* src/storage/storage_backend.h: New internal API for checking
storage pool state
* src/storage/storage_driver.c: Check whether a pool is active
upon driver startup
* src/storage/storage_backend_fs.c, src/storage/storage_backend_iscsi.c,
src/storage/storage_backend_logical.c, src/storage/storage_backend_mpath.c,
src/storage/storage_backend_scsi.c: Add checks for pool state
The "find-storage-pool-sources-as" command takes two arguments,
a hostname and a port number. For some reason the code would
also then look for a port number appended to the hostname
string by searching for ':'. This totally breaks if the user
gives an IPv6 address, and is redundant, since you can already
provide a port as a separate argument
* tools/virsh.c: Remove bogus port number handling code
