Commit Graph

15690 Commits

Author SHA1 Message Date
Cole Robinson
5900356efb qemu: caps: Rename CAPS_DISABLE_S[34] to CAPS_PIIX_DISABLE_S[34]
These settings are specific to PIIX, so clarify it
2016-01-10 14:59:53 -05:00
Cole Robinson
ab963449dc qemu: capabilities: s/Pixx/Piix/g
The chipset is called PIIX; the functions are misnamed
2016-01-10 14:59:53 -05:00
Michal Privoznik
b7fac9f77f virDomainMigrateUnmanagedParams: Don't blindly dereference @dconnuri
This function may be called with @dconnuri == NULL, e.g. from
virDomainMigrateToURI3() if the flags are missing
VIR_MIGRATE_PEER2PEER flag. Moreover, all later functions called
from here do wrap it into NULLSTR() so why not do the same here?

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
2016-01-09 18:44:44 +01:00
Martin Kletzander
8156493d8d Fix USB model defaults for ppc64
The condition was checking for UHCI (and OHCI for ppc64) availability so
that it can specify the proper device instead of legacy usb.  However,
for ppc64, we don't need to check both OHCI and UHCI, but only OHCI as
that is the legacy default.  The condition is so big that it was just a
matter of time when someone will make a mistake there, so let's use more
lines so that it is visible what the condition checks for.

This fixes usage of -device instead of -usb for ppc64 that supports
pci-usb-ohci and does not support piix3-usb-uhci.

Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1297020

Signed-off-by: Martin Kletzander <mkletzan@redhat.com>
2016-01-09 18:39:17 +01:00
Jim Fehlig
f988ecfb34 libxl: support vif outgoing bandwidth QoS
The libxl_device_nic structure supports specifying an outgoing rate
limit based on a time interval and bytes allowed per interval. In xl
config a rate limit is specified as "<RATE>/s@<INTERVAL>". INTERVAL
is optional and defaults to 50ms.

libvirt expresses outgoing limits by average (required), peak, burst,
and floor attributes in units of KB/s. This patch supports the outgoing
bandwidth limit by converting the average KB/s to bytes per interval
based on the same default interval (50ms) used by xl.

Signed-off-by: Jim Fehlig <jfehlig@suse.com>
2016-01-08 18:56:00 -07:00
Jim Fehlig
ec63000a62 xenconfig: support vif bandwidth in xm and xl parser and formatter
Both xm and xl config have long supported specifying vif rate
limiting, e.g.

vif = [ 'mac=00:16:3E:74:3d:76,bridge=br0,rate=10MB/s' ]

Add support for mapping rate to and from <bandwidth> in the xenconfig
parser and formatter. rate is mapped to the required 'average' attribute
of the <outbound> element, e.g.

  <interface type='bridge'>
    ...
    <bandwidth>
      <outbound average='10240'/>
    </bandwidth>
  </interface>

Also add a unit test to check the conversion logic.

Signed-off-by: Jim Fehlig <jfehlig@suse.com>
2016-01-08 18:56:00 -07:00
Jim Fehlig
1dd34bbb4b xenconfig: support vif bandwidth in sexpr parser and formatter
The xen sexpr config format has long supported specifying vif rate
limiting, e.g.

  (device
    (vif
      (mac '00:16:3e:1b:b1:47')
      (rate '10240KB/s')
      ...
    )
  )

Add support for mapping rate to and from <bandwidth> in the xenconfig
sexpr parser and formatter. rate is mapped to the required 'average'
attribute of the <outbound> element, e.g.

  <interface type='bridge'>
    ...
    <bandwidth>
      <outbound average='10240'/>
    </bandwidth>
  </interface>

Also add unit tests to check the conversion logic.

This patch benefits both the old xen driver and the libxl driver.
Both drivers gain support for vif bandwidth when converting to/from
domXML and xen-sxpr. In addition, the old xen driver will now be
able to handle vif 'rate' setting when communicating with xend.
2016-01-08 18:56:00 -07:00
Cole Robinson
3d92a000ff qemu: Fix crash when defining XML with bogus emulator
We weren't checking for failure of qemuCaps lookup
2016-01-08 20:05:31 -05:00
Laine Stump
79ba107670 util: add missing newline
Somehow I managed to backspace over the newline between the closing
brace and goto cleanup; in commit 36e244f3.
2016-01-08 14:09:31 -05:00
Cole Robinson
74abc3deac qemu: Handle SecurityManagerVerify in post parse
Rather than open coding calls. I can't see any reason not to
2016-01-08 13:25:21 -05:00
Cole Robinson
a8b628e7a8 qemu: Handle CanonicalizeMachine in post parse
Rather than open coding calls. I can't see any reason not to
2016-01-08 13:25:20 -05:00
Cole Robinson
9cec6239c1 qemu: domain: split out post parse default device handling
Should be a no-op
2016-01-08 13:25:20 -05:00
Cole Robinson
ee719cdcca domain: separate out function for post parse timer validation
This should be a no-op
2016-01-08 13:25:20 -05:00
Cole Robinson
11de45bb71 domain: separate out function for post parse console compat
This should be a no-op
2016-01-08 13:25:20 -05:00
Jiri Denemark
b2334e433a qemu: Refactor qemuMigrationFinish
To get rid of a giant if-else block which is very easy to get lost in.

Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
2016-01-08 18:18:58 +01:00
Jiri Denemark
eb084a733b qemu: Report more migration statistics
memory_dirty_rate corresponds to dirty-pages-rate in QEMU and
memory_iteration is what QEMU reports in dirty-sync-count.

Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
2016-01-08 18:18:58 +01:00
Jiri Denemark
b638b9b35c qemu: Create a proper type for migration status enum
The enum will be called qemuMonitorMigrationStatus.

Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
2016-01-08 18:18:58 +01:00
Jiri Denemark
09bbd96239 qemu: Rename qemuMonitorMigrationStatus struct
The structure actually contains migration statistics rather than just
the status as the name suggests. Renaming it as
qemuMonitorMigrationStats removes the confusion.

Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
2016-01-08 18:18:58 +01:00
Jiri Denemark
5fed699a2d qemu: Reorder migration status enum
A migration is in "setup" state after it was "inactive" and before it
becomes "active". Let's reflect this in our migration status enum.

Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
2016-01-08 18:18:58 +01:00
Pavel Hrdina
4100aecd13 xen: move virDomainDefPostParse to xenParseSxpr
This patch partially reverts previous commit 91a00424 and moves the post
parse function to xenParseSxpr.  This update is required because xen
driver calls xenParseSxpr directly.

Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
2016-01-08 14:45:20 +01:00
Martin Kletzander
f0df0dcaa0 Remove non-breaking space in comment
It was added by mistake before the 'If' by commit 7140807917.

Signed-off-by: Martin Kletzander <mkletzan@redhat.com>
2016-01-08 14:22:42 +01:00
Jiri Denemark
f87668b70e qemu: Fix NBD migration with default listenAddress
My commit 674afcb09e moved computing the
default listen address from qemuMigrationPrepareAny to
qemuMigrationPrepareIncoming. However, I didn't notice listenAddress was
later passed to qemuMigrationStartNBDServer. Thus, it would be called
with the original value of listenAddress (NULL).

Let's add the updated listen address to qemuProcessIncomingDef and use
it when starting NBD servers.

Reported-by: Michael Chapman <mike@very.puzzling.org>
Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
2016-01-08 10:39:20 +01:00
Andrea Bolognani
4e1f37f812 pci: Log debug messages when manipulating the inactive list
Most of the changes to the list of active and inactive PCI devices
happen in virHostdev, where they are properly logged.

virPCIDeviceDetach() and virPCIDeviceReattach(), however, change the
inactive list as well, so they should be logging similar messages.
2016-01-08 09:52:33 +01:00
Michal Privoznik
587fd10554 virLogVMessage: Don't leak rawinitmsg
Instead of misusing a const string to hold up runtime allocated
data, introduce new variable @hoststr and obey const correctness.

==6879== 15 bytes in 1 blocks are definitely lost in loss record 68 of 1,064
==6879==    at 0x4C29F80: malloc (in /usr/lib64/valgrind/vgpreload_memcheck-amd64-linux.so)
==6879==    by 0xA7DDF97: vasprintf (in /lib64/libc-2.21.so)
==6879==    by 0x552BBC6: virVasprintfInternal (virstring.c:493)
==6879==    by 0x552BCDB: virAsprintfInternal (virstring.c:514)
==6879==    by 0x54FA44C: virLogHostnameString (virlog.c:468)
==6879==    by 0x54FAB0F: virLogVMessage (virlog.c:645)
==6879==    by 0x54FA680: virLogMessage (virlog.c:531)
==6879==    by 0x54FBBF4: virLogParseOutputs (virlog.c:1130)
==6879==    by 0x11CB4F: daemonSetupLogging (libvirtd.c:685)
==6879==    by 0x11E137: main (libvirtd.c:1297)

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
2016-01-08 09:16:33 +01:00
Michal Privoznik
9f7506488a virLogHostnameString: Don't leak hostname
Once @hostname is printed into @hoststr we don't need it anymore.

==6879== 5 bytes in 1 blocks are definitely lost in loss record 10 of 1,064
==6879==    at 0x4C29F80: malloc (in /usr/lib64/valgrind/vgpreload_memcheck-amd64-linux.so)
==6879==    by 0xA7ED599: strdup (in /lib64/libc-2.21.so)
==6879==    by 0x552C126: virStrdup (virstring.c:726)
==6879==    by 0x553B13E: virGetHostnameImpl (virutil.c:720)
==6879==    by 0x553B1BF: virGetHostnameQuiet (virutil.c:741)
==6879==    by 0x54FA3FD: virLogHostnameString (virlog.c:462)
==6879==    by 0x54FAB0F: virLogVMessage (virlog.c:645)
==6879==    by 0x54FA680: virLogMessage (virlog.c:531)
==6879==    by 0x54FBBF4: virLogParseOutputs (virlog.c:1130)
==6879==    by 0x11CB4F: daemonSetupLogging (libvirtd.c:685)
==6879==    by 0x11E137: main (libvirtd.c:1297)

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
2016-01-08 09:16:33 +01:00
Jiri Denemark
0e747f2029 qemu: Add debug message to spice migration
Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
2016-01-07 13:20:38 +01:00
Martin Kletzander
7140807917 qemu: Don't bother user with libvirt-internal paths
If user defines a virtio channel with UNIX socket backend and doesn't
care about the path for the socket (e.g. qemu-agent channel), we still
generate it into the persistent XML.  Moreover when then user renames
the domain, due to its persistent socket path saved into the per-domain
directory, it will not start.  So let's forget about old generated paths
and also stop putting them into the persistent definition.

https://bugzilla.redhat.com/show_bug.cgi?id=1278068

Signed-off-by: Martin Kletzander <mkletzan@redhat.com>
2016-01-07 11:29:53 +01:00
Peter Krempa
5f7df34611 qemu: snapshot: Skip 'transaction' command when no disks are selected
When doing a memory-only snapshot libvirt would still issue the
'transaction' command without any disk. Skip it if it isn't necessary.
2016-01-07 08:26:35 +01:00
Wido den Hollander
6343018fac rbd: Do not append Ceph monitor port number 6789 if not provided
If no port number was provided for a storage pool libvirt defaults to
port 6789; however, librbd/librados already default to 6789 when no port
number is provided.

In the future Ceph will switch to a new port for the Ceph monitors since
port 6789 is already assigned to a different application by IANA.

Port 6789 is assigned to SMC-HTTPS and Ceph now has port 3300 assigned as
the 'Ceph monitor' port.

In this case it is the best solution to not hardcode any port number into
libvirt and let librados handle the connection.

Only if a user specifies a different port number we pass it down to librados,
otherwise we leave it blank.

Signed-off-by: Wido den Hollander <wido@widodh.nl>

merge
2016-01-06 08:13:50 -05:00
Wido den Hollander
f46d137e33 rbd: Do not error out on a single image during pool refresh
It could happen that rbd_list() returns X names, but that while
refreshing the pool one of those RBD images is removed from Ceph
through a different route then libvirt.

We do not need to error out in such case, we can simply ignore the
volume and continue.

  error : volStorageBackendRBDRefreshVolInfo:289 :
    failed to open the RBD image 'vol-998': No such file or directory

It could also be that one or more Placement Groups (PGs) inside Ceph
are inactive due to a system failure.

If that happens it could be that some RBD images can not be refreshed
and a timeout will be raised by librados.

  error : volStorageBackendRBDRefreshVolInfo:289 :
    failed to open the RBD image 'vol-893': Connection timed out

Ignore the error and continue to refresh the rest of the pool's
contents.

Signed-off-by: Wido den Hollander <wido@widodh.nl>
2016-01-06 07:46:18 -05:00
Wido den Hollander
10028a9d58 rbd: Only close RBD image if it has been opened
It could be that we error out while the RBD image has not been
opened yet. This would cause us to call rbd_close() on pointer
which has not been initialized.

Set it to NULL by default and only close if it is not NULL.

Signed-off-by: Wido den Hollander <wido@widodh.nl>
2016-01-06 07:46:17 -05:00
Olaf Hering
b22344f328 fix LSB part of virtlogd runlevel script
Currently pkg build of master branch fails:

[  300s] + /usr/lib/rpm/brp-boot-scripts
[  300s] E: File `virtlogd' is missing `Required-Start', please add even if empty!
[  300s] W: File `virtlogd' is missing `Required-Stop', please add even if empty!
[  300s] E: File `virtlogd' has empty `Default-Start', please specify default runlevel(s)!
[  300s] ERROR: found one or more broken init or boot scripts, please fix them.
[  300s]        For more information about LSB headers please read the manual
[  300s]        page of of insserv by executing the command `man 8 insserv'.
[  300s]        If you don't understand this, mailto=werner@suse.de
[  300s] error: Bad exit status from /var/tmp/rpm-tmp.44965 (%install)

Add the required tags, fix the existing tags.
Use soft dependency "Should-Start" because virtlogd may work without network.

Signed-off-by: Olaf Hering <olaf@aepfle.de>
2016-01-06 10:59:53 +01:00
Michael Chapman
44b4a4f6d7 virtlogd: fix lock file path in initscript
The virtlogd initscript's lock file should go in /var/lock/subsys/, not
(the nonexistent) /var/log/subsys/.

Signed-off-by: Michael Chapman <mike@very.puzzling.org>
2016-01-05 18:48:50 -05:00
Michal Privoznik
d7db33bfe9 qemu: Specify format= iff disk source is not empty
Just recently, qemu forbade specifying format for sourceless
disks (qemu commit 39c4ae941ed992a3bb5). It kind of makes sense.
If there's no file to open, why specify its format. Anyway, I
have a domain like this:

    <disk type='file' device='cdrom'>
      <driver name='qemu' type='raw'/>
      <target dev='hda' bus='ide'/>
      <readonly/>
      <address type='drive' controller='0' bus='0' target='0' unit='0'/>
    </disk>

and obviously I am unable to start it. Therefore, a fix on our
side is needed too.

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
2016-01-05 16:41:16 +01:00
John Ferlan
dc77344a8e storage: Clean up error path for create buildPool failure
Commit id 'aeb1078ab' added a buildPool option and failure path which
calls virStoragePoolObjRemove, which unlocks the pool, clears the 'pool'
variable, and goto cleanup.  However, at cleanup virStoragePoolObjUnlock
is called without check if pool is non NULL.
2016-01-05 09:08:02 -05:00
Ján Tomko
488222800e libvirt-domain: fix dxml passing in virDomainMigrateToURI2
The refactoring in commit a26669d silently ignored the dxml
parameter of virDomainMigrateToURI2.

https://bugzilla.redhat.com/show_bug.cgi?id=1295405
2016-01-05 15:00:03 +01:00
Dmitry Mishin
5834527136 conf: Rework code around 'append' attribute
Commit id '70ffa02fc' added the data.file.append option to some
VIR_DOMAIN_CHR_TYPE_FILE cases in switch statements allowing the
code to "fall through" for the remainder of the cases. This causes
angst in code profiling tools, like Coverity since there is no break;
followed by more case conditions. Adjust the logic to be more specific
within each case.

Signed-off-by: Dmitry Mishin <dim@virtuozzo.com>
2016-01-05 07:59:17 -05:00
Dmitry Mishin
8746d95f6d Use tristate constants for new 'append' field
For completeness, use the VIR_TRISTATE_SWITCH_ABSENT for data.file.append
comparisons. Commit ids '70ffa02f' and '53a15aed' just went with the non
zero comparison.
2016-01-05 07:59:17 -05:00
Martin Kletzander
7d65a355fa Fix formatting for virDomainGetCPUStats docstring
We have few code samples there that are almost unreadable when formatted
because they are not indented properly.  By indenting them they are
formatted as code and hence quite readable.  Also adjust descriptions to
be comments and add semicolons so that the code sample looks like sample
of a working code.

Signed-off-by: Martin Kletzander <mkletzan@redhat.com>
2016-01-05 11:39:39 +01:00
Michal Privoznik
783b254413 qemu: Fix return value of qemuDomainGetBlockJobInfo
While reviewing 1b43885d17 I've noticed a virReportError()
followed by a goto endjob; without setting the correct return
value. Problem is, if block job is so fast that it's bandwidth
does not fit into ulong, an error is reported. However, by that
time @ret is already set to 1 which means success. Since the
scenario can be hardly considered successful, we should return a
value meaning error.

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
2016-01-05 08:59:44 +01:00
Laine Stump
3d64a9d783 util: reduce debug log in virPCIGetVirtualFunctions()
Due to debug logs like this:

  virPCIGetDeviceAddressFromSysfsLink:2432 : Attempting to resolve device path from device link '/sys/class/net/eth1/device/virtfn6'
  logStrToLong_ui:2369 : Converted '0000:07:00.7' to unsigned int 0
  logStrToLong_ui:2369 : Converted '07:00.7' to unsigned int 7
  logStrToLong_ui:2369 : Converted '00.7' to unsigned int 0
  logStrToLong_ui:2369 : Converted '7' to unsigned int 7
  virPCIGetDeviceAddressFromSysfs:1947 : virPCIDeviceAddress 0000:07:00.7
  virPCIGetVirtualFunctions:2554 : Found virtual function 7

printed *once for each SR-IOV Virtual Function* of a Physical Function
each time libvirt retrieved the list of VFs (so if the system has 128
VFs, there would be 900 lines of log for each call), the debug logs on
any system with a large number of VFs was dominated by "information"
that was possibly useful for debugging when the code was being
written, but is now useless for debugging of any problem on a running
system, and only serves to obscure the real useful information. This
overkill has no place in production code, so this patch removes it.
2016-01-04 15:17:20 -05:00
Laine Stump
36e244f308 util: improve error reporting in virNetDevVPortProfileGetStatus
The previous error message just indicated that the desired response
couldn't be found, this patch tells what was desired, as well as
listing out the entire table that had been in the netlink response, to
give some kind of idea why it failed.
2016-01-04 15:15:20 -05:00
Laine Stump
5ffa236bb4 util: report the MAC address that couldn't be set
I noticed in a log file that we had failed to set a MAC address. The
log said which interface we were trying to set, but didn't give the
offending MAC address, which could have been useful in determining the
source of the problem. This patch modifies all three places in the
code that set MAC addresses to report the failed MAC as well as
interface.
2016-01-04 14:46:39 -05:00
Wido den Hollander
688623b5b0 rbd: Return VIR_STORAGE_FILE_RAW as format for RBD volumes
This used to return 'unkown' and that was not correct.

A vol-dumpxml now returns:

<volume type='network'>
  <name>image3</name>
  <key>libvirt/image3</key>
  <source>
  </source>
  <capacity unit='bytes'>10737418240</capacity>
  <allocation unit='bytes'>10737418240</allocation>
  <target>
    <path>libvirt/image3</path>
    <format type='raw'/>
  </target>
</volume>

The RBD driver will now error out if a different format than RAW
is provided when creating a volume.

Signed-off-by: Wido den Hollander <wido@widodh.nl>
2016-01-04 15:19:06 +01:00
Michael Chapman
c494db8fd6 storage: do not leak storage pool XML filename
Valgrind complained:

==28277== 38 bytes in 1 blocks are definitely lost in loss record 298 of 957
==28277==    at 0x4A06A2E: malloc (vg_replace_malloc.c:270)
==28277==    by 0x82D7F57: __vasprintf_chk (in /lib64/libc-2.12.so)
==28277==    by 0x52EF16A: virVasprintfInternal (stdio2.h:199)
==28277==    by 0x52EF25C: virAsprintfInternal (virstring.c:514)
==28277==    by 0x52B1FA9: virFileBuildPath (virfile.c:2831)
==28277==    by 0x19B1947C: storageDriverAutostart (storage_driver.c:191)
==28277==    by 0x19B196A7: storageStateAutoStart (storage_driver.c:307)
==28277==    by 0x538527E: virStateInitialize (libvirt.c:793)
==28277==    by 0x11D7CF: daemonRunStateInit (libvirtd.c:947)
==28277==    by 0x52F4694: virThreadHelper (virthread.c:206)
==28277==    by 0x6E08A50: start_thread (in /lib64/libpthread-2.12.so)
==28277==    by 0x82BE93C: clone (in /lib64/libc-2.12.so)

Signed-off-by: Michael Chapman <mike@very.puzzling.org>
2016-01-04 14:54:23 +01:00
Michael Chapman
28c9eea032 qemu: do not leak NBD disk data in migration cookie
Valgrind complained:

==18990== 20 (16 direct, 4 indirect) bytes in 1 blocks are definitely lost in loss record 188 of 996
==18990==    at 0x4A057BB: calloc (vg_replace_malloc.c:593)
==18990==    by 0x5292E9B: virAllocN (viralloc.c:191)
==18990==    by 0x2221E731: qemuMigrationCookieXMLParseStr (qemu_migration.c:1012)
==18990==    by 0x2221F390: qemuMigrationEatCookie (qemu_migration.c:1413)
==18990==    by 0x222228CE: qemuMigrationPrepareAny (qemu_migration.c:3463)
==18990==    by 0x22224121: qemuMigrationPrepareDirect (qemu_migration.c:3865)
==18990==    by 0x22251C25: qemuDomainMigratePrepare3Params (qemu_driver.c:12414)
==18990==    by 0x5389EE0: virDomainMigratePrepare3Params (libvirt-domain.c:5107)
==18990==    by 0x1278DB: remoteDispatchDomainMigratePrepare3ParamsHelper (remote.c:5425)
==18990==    by 0x53FF287: virNetServerProgramDispatch (virnetserverprogram.c:437)
==18990==    by 0x540523D: virNetServerProcessMsg (virnetserver.c:135)
==18990==    by 0x54052C7: virNetServerHandleJob (virnetserver.c:156)
==18990==
==18990== 20 (16 direct, 4 indirect) bytes in 1 blocks are definitely lost in loss record 189 of 996
==18990==    at 0x4A057BB: calloc (vg_replace_malloc.c:593)
==18990==    by 0x5292E9B: virAllocN (viralloc.c:191)
==18990==    by 0x2221E731: qemuMigrationCookieXMLParseStr (qemu_migration.c:1012)
==18990==    by 0x2221F390: qemuMigrationEatCookie (qemu_migration.c:1413)
==18990==    by 0x222249D2: qemuMigrationRun (qemu_migration.c:4395)
==18990==    by 0x22226365: doNativeMigrate (qemu_migration.c:4693)
==18990==    by 0x22228E45: qemuMigrationPerform (qemu_migration.c:5553)
==18990==    by 0x2225144B: qemuDomainMigratePerform3Params (qemu_driver.c:12621)
==18990==    by 0x539F5D8: virDomainMigratePerform3Params (libvirt-domain.c:5206)
==18990==    by 0x127305: remoteDispatchDomainMigratePerform3ParamsHelper (remote.c:5557)
==18990==    by 0x53FF287: virNetServerProgramDispatch (virnetserverprogram.c:437)
==18990==    by 0x540523D: virNetServerProcessMsg (virnetserver.c:135)

If we're replacing the NBD data, it's simplest to free the old object
(including the disk list) and allocate a new one.

Signed-off-by: Michael Chapman <mike@very.puzzling.org>
2016-01-04 14:54:23 +01:00
Michael Chapman
1b43885d17 qemu: do not copy out non-existent block job info
Valgrind complained:

==23975== Conditional jump or move depends on uninitialised value(s)
==23975==    at 0x22255FA6: qemuDomainGetBlockJobInfo (qemu_driver.c:16538)
==23975==    by 0x538E97C: virDomainGetBlockJobInfo (libvirt-domain.c:9685)
==23975==    by 0x12F740: remoteDispatchDomainGetBlockJobInfoHelper (remote.c:2834)
==23975==    by 0x53FF287: virNetServerProgramDispatch (virnetserverprogram.c:437)
==23975==    by 0x540523D: virNetServerProcessMsg (virnetserver.c:135)
==23975==    by 0x54052C7: virNetServerHandleJob (virnetserver.c:156)
==23975==    by 0x52F515B: virThreadPoolWorker (virthreadpool.c:145)
==23975==    by 0x52F4668: virThreadHelper (virthread.c:206)
==23975==    by 0x6E08A50: start_thread (in /lib64/libpthread-2.12.so)
==23975==    by 0x82BE93C: clone (in /lib64/libc-2.12.so)
==23975==
==23975== Conditional jump or move depends on uninitialised value(s)
==23975==    at 0x22255FB4: qemuDomainGetBlockJobInfo (qemu_driver.c:16542)
==23975==    by 0x538E97C: virDomainGetBlockJobInfo (libvirt-domain.c:9685)
==23975==    by 0x12F740: remoteDispatchDomainGetBlockJobInfoHelper (remote.c:2834)
==23975==    by 0x53FF287: virNetServerProgramDispatch (virnetserverprogram.c:437)
==23975==    by 0x540523D: virNetServerProcessMsg (virnetserver.c:135)
==23975==    by 0x54052C7: virNetServerHandleJob (virnetserver.c:156)
==23975==    by 0x52F515B: virThreadPoolWorker (virthreadpool.c:145)
==23975==    by 0x52F4668: virThreadHelper (virthread.c:206)
==23975==    by 0x6E08A50: start_thread (in /lib64/libpthread-2.12.so)
==23975==    by 0x82BE93C: clone (in /lib64/libc-2.12.so)

If no matching block job is found, qemuMonitorGetBlockJobInfo returns 0
and we should not write anything to the caller-supplied
virDomainBlockJobInfo pointer.

Signed-off-by: Michael Chapman <mike@very.puzzling.org>
2016-01-04 14:54:23 +01:00
Michal Privoznik
f55d1316ad sysconf: Include unistd.h
The manpage for sysconf() suggest including unistd.h as the
function is declared there. Even though we are not hitting any
compile issues currently, let's include the correct header file
instead of relying on some hidden include chain.

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
2015-12-24 18:03:50 +01:00
Michal Privoznik
eec91958b4 virStorageVolWipe: Document that wiping journaled FS is useless
So you have a libvirt volume that you want to wipe out. But lets
say that the volume is actually a file stored on a journaled
filesystem. Overwriting it with zeroes or a pattern does not mean
that corresponding physical location on the disk is overwritten
too, due to journaling. It's the same story with network based
volumes, copy-on-write filesystems, and so on. Since there is no
way that an userland application can write onto specific areas on
disk, all that we can do is document the fact.

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
2015-12-24 18:02:58 +01:00
Maxim Nestratov
635daa2556 vz: BUG: fix connecting hang in case of init failure
In case of prlsdkLoadDomains fails, vzOpenDefault should
clear connection privateData pointer every time its
memory is actually freed.
Also it is not necessary to call vzConnectClose if a call
to vzOpenDefault fails, because they both make cleanup of
connection privateData.

Signed-off-by: Maxim Nestratov <mnestratov@virtuozzo.com>
2015-12-24 18:31:05 +03:00