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This is only a theoretical leak, but in virChrdevAlloc() we
initialize a mutex and if creating a hash table fails,
then virChrdevFree() is called which because of incorrect check
doesn't deinit the mutex.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
When opening a console to a domain, we put a tuple of {path,
virStreamPtr} into a hash table that's private to the domain.
This is to ensure only one client at most has the console stream
open. Later, when the console is closed, the tuple is removed
from the hash table and freed. Except, @path won't be freed.
==234102== 60 bytes in 5 blocks are definitely lost in loss record 436 of 651
==234102== at 0x4836753: malloc (vg_replace_malloc.c:307)
==234102== by 0x5549110: g_malloc (in /usr/lib64/libglib-2.0.so.0.6000.6)
==234102== by 0x5562D1E: g_strdup (in /usr/lib64/libglib-2.0.so.0.6000.6)
==234102== by 0x4A5A917: virChrdevOpen (virchrdev.c:412)
==234102== by 0x17B64645: qemuDomainOpenConsole (qemu_driver.c:17309)
==234102== by 0x4BC8031: virDomainOpenConsole (libvirt-domain.c:9662)
==234102== by 0x13F854: remoteDispatchDomainOpenConsole (remote_daemon_dispatch_stubs.h:9211)
==234102== by 0x13F72F: remoteDispatchDomainOpenConsoleHelper (remote_daemon_dispatch_stubs.h:9178)
==234102== by 0x4AB0685: virNetServerProgramDispatchCall (virnetserverprogram.c:430)
==234102== by 0x4AB01F0: virNetServerProgramDispatch (virnetserverprogram.c:302)
==234102== by 0x4AB700B: virNetServerProcessMsg (virnetserver.c:136)
==234102== by 0x4AB70CB: virNetServerHandleJob (virnetserver.c:153)
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
Now that we removed the subject prefix tag from the mailman config
we should set 'libvirt' as the subject when sending patches.
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
When resuming a domain from a save file, we read the domain XML
from the file, add it onto our internal list of domains, start
the qemu process, let it load the incoming migration stream and
resume its vCPUs afterwards. If anything goes wrong, the domain
object is removed from the list of domains and error is returned
to the caller. However, the qemu process might be left behind -
if resuming vCPUs fails (e.g. because qemu is unable to acquire
write lock on a disk) then due to a bug the qemu process is not
killed but the domain object is removed from the list.
Fixes: https://bugzilla.redhat.com/show_bug.cgi?id=1718707
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Our virsh already has 'domhostname' command. Add '--source'
argument to it so that users can chose between 'lease' and
'agent' sources. Also, implement completer for the argument.
Signed-off-by: Julio Faracco <jcfaracco@gmail.com>
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
Since there is no guest agent in LXC world (yet), we can
implement _LEASE flag only.
Signed-off-by: Julio Faracco <jcfaracco@gmail.com>
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
We have to keep the default - querying the agent if no flag is
set.
Signed-off-by: Julio Faracco <jcfaracco@gmail.com>
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
There is a lots of possibilities to retrieve hostname information
from domain. Libvirt could use lease information from dnsmasq to
get current hostname too. QEMU supports QEMU-agent but it can use
lease source.
Signed-off-by: Julio Faracco <jcfaracco@gmail.com>
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
In particular, we're interested in the following commits:
commit 43b5194d5b156f8dd7ae576952568d331978f5f0
Author: Bruno Haible <bruno@clisp.org>
Date: Sun Jan 5 20:42:12 2020 +0100
tests: Avoid GCC over-optimization caused by _GL_ARG_NONNULL attributes.
* lib/stdlib.in.h: Tweak last commit.
commit b7d7afe10ddf599452bd80b8a840c830cd474b09
Author: Bruno Haible <bruno@clisp.org>
Date: Sun Jan 5 09:13:25 2020 +0100
tests: Avoid GCC over-optimization caused by _GL_ARG_NONNULL attributes.
Reported by Jim Meyering in
<https://lists.gnu.org/archive/html/bug-gnulib/2020-01/msg00040.html>.
* lib/stdlib.in.h (GNULIB_defined_canonicalize_file_name): New macro.
(GNULIB_defined_ptsname_r): New macro.
* tests/test-canonicalize.c (_GL_ARG_NONNULL): Define to empty.
(main): Disable the NULL argument test if canonicalize_file_name does
not come from gnulib.
* tests/test-canonicalize-lgpl.c (_GL_ARG_NONNULL): Define to empty.
(main): Disable the NULL argument test if canonicalize_file_name does
not come from gnulib.
* tests/test-ptsname_r.c (_GL_ARG_NONNULL): Define to empty.
(test_errors): Disable the NULL argument test if ptsname_r does not come
from gnulib.
since they fix a build failure caused by the gnulib tests failing
on ppc64le, as reported in
https://www.redhat.com/archives/libvir-list/2020-January/msg00616.html
Reported-by: Satheesh Rajendran <sathnaga@linux.vnet.ibm.com>
Tracked-down-by: Bruno Haible <bruno@clisp.org>
Signed-off-by: Andrea Bolognani <abologna@redhat.com>
As of systemd commit:
commit d65652f1f21a4b0c59711320f34266c635393c89
Author: Zbigniew Jędrzejewski-Szmek <zbyszek@in.waw.pl>
CommitDate: 2018-12-10 09:56:56 +0100
Partially unify hostname_is_valid() and dns_name_is_valid()
Dashes are no longer allowed at the end of machine names.
Trim the trailing dashes from the generated name before passing
it to machined.
https://bugzilla.redhat.com/show_bug.cgi?id=1790409
Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
A new helper for trimming combinations of specified characters from
the tail of the buffer.
Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
Allow adding new fields without changing all the macros.
Otherwise the compiler complains that not all have been initialized:
../../tests/virbuftest.c:419:5: error: missing field 'arg' initializer [-Werror,-Wmissing-field-initializers]
DO_TEST_ESCAPE("<td></td><td></td>",
^
../../tests/virbuftest.c:414:56: note: expanded from macro 'DO_TEST_ESCAPE'
struct testBufAddStrData info = { data, expect }; \
Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
Move the declaration to the beginning of the file for reuse.
Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
Remove the ret variables and labels from functions that no longer need
them.
Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
This leaks the FD of BPF map which means it will not be freed.
Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
Reviewed-by: Jiri Denemark <jdenemar@redhat.com>
Some were in the wrong section, some in the wrong version.
Signed-off-by: Andrea Bolognani <abologna@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
libvirt currently always reports that USB is available as a bus subsystem
type when running "virsh domcapabilities". However, this is not always
true, for example the qemu-system-s390x binary normally never has support
for USB. Thus we should only report that USB is available if there is
also a USB host controller available where we can attach USB devices.
Reported-by: Sebastian Mitterle <smitterl@redhat.com>
Buglink: https://bugzilla.redhat.com/show_bug.cgi?id=1759849
Signed-off-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
When trying to specify an input device on s390x without bus like this:
<input type='keyboard'/>
... then libvirt currently complains:
error: unsupported configuration: USB is disabled for this domain,
but USB devices are present in the domain XML
This is somewhat confusing since the user did not specify an USB
device here. Since USB is not available on s390x, we should default
to the "virtio" bus here instead.
Buglink: https://bugzilla.redhat.com/show_bug.cgi?id=1790189
Signed-off-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Historically there are two places where we format authentication and
encryption for a disk. The logich which formats it for backing files was
flawed though and didn't format it at all. This worked if the image
became a backing file through the means of a snapshot but not directly.
Force formatting of the source and encryption for any non-disk case to
fix the issue.
This caused problems in many places as we use the formatter to copy the
definition. Effectively any copy lost the secret definition.
https://bugzilla.redhat.com/show_bug.cgi?id=1789310https://bugzilla.redhat.com/show_bug.cgi?id=1788898
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Jiri Denemark <jdenemar@redhat.com>
The test data was used only in xml->argv testing but it will have some
interresting fallout soon.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Jiri Denemark <jdenemar@redhat.com>
Add another disk to luks-disks-source-qcow2 case to cover a backing
chain with encrypted members.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Jiri Denemark <jdenemar@redhat.com>
Commit v5.10.0-269-g62065a6cb5 moved NUMA validation code to domain
definition time and appropriately adjusted affected test cases except
for hugepages-default-system-size. And since we don't mock
virGetSystemPageSizeKB in our tests, hugepages-default-system-size test
would fail on architectures (ppc64le) with default page size other than
4KiB.
Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
Reviewed-by: Pavel Hrdina <phrdina@redhat.com>
In v5.0.0-rc1~94 we switched from one huge switch() to an array
for translating error numbers into error messages. However, the
array is declared to have VIR_ERR_NUMBER_LAST items which makes
it impossible to spot this place by compile checking when adding
new error number.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
Mention the knowledge base article which has tips how to fix the backing
chain to work with current libvirt.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
When debugging tests under GDB/valgrind there is a significant
delay each time an execve is done as they scan shared libraries
once again. For tests which use many mock libraries, we have
been invoking execve many times which makes the debug experience
horrible. This changes our framework to activate the full
set of mock libraries in one single execve.
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Add documentation for additional reason why snapshot-revert might need
to be forced. This explains why restoring an inactive snapshot while
there is managed saved state is refused by default.
Signed-off-by: Michael Weiser <michael.weiser@gmx.de>
Reviewed-by: Daniel Henrique Barboza <danielhb413@gmail.com
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Reformat explanations of the snapshot-revert force reasons in
preparation for more to be added. This is a simple reformat without any
wording changes.
Signed-off-by: Michael Weiser <michael.weiser@gmx.de>
Reviewed-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Internal snapshots of a non-running domain do not carry any memory state
and restoring such a snapshot will not replace existing saved memory
state. This allows a scenario, where a user first suspends a domain into
managedsave, restores a non-running snapshot and then resumes the domain
from managedsave. After that, the guest system will run with its
previous memory state atop a different disk state. The most obvious
possible fallout from this is extensive file system corruption. Swap
content and RAID bitmaps might also be off.
This has been discussed[1] and fixed[2] from the end-user perspective for
virt-manager.
This patch marks the restore operation as risky at the libvirt level,
requiring the user to remove the saved memory state first or force the
operation.
[1] https://www.redhat.com/archives/virt-tools-list/2019-November/msg00011.html
[2] https://www.redhat.com/archives/virt-tools-list/2019-December/msg00049.html
Signed-off-by: Michael Weiser <michael.weiser@gmx.de>
Reviewed-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Trivially replace usages of qemu and lxc in the virsh manpage with their
more heavily used and (according to Wikipedia) correct upper-case
spellings QEMU and LXC.
Signed-off-by: Michael Weiser <michael.weiser@gmx.de>
Suggested-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Reviewed-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Commit v5.10.0-290-g3a4787a301 refactored qemuDomainGetHostdevPath to
return a single path rather than an array of paths. When the function is
called on a missing device, it will now return NULL in @path rather than
a NULL array with zero items and the callers need to be adapted
properly.
Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
--tls-destination would be just ignored unless --tls is not specified,
which is correct, but let's provide a bit of a guidance is a user
forgets to add --tls.
This is just a virsh-only check targeted to end users as we don't
currently have such checks at the API level for migration parameters
that depend on flags.
https://bugzilla.redhat.com/show_bug.cgi?id=1784345
Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
Acked-by: Peter Krempa <pkrempa@redhat.com>
bhyveargv2xmlmock calls virBhyveCapsBuild which in turn
calls virCPUProbeHost, probing the real host CPU. This
causes a test failure if the host CPU happens to contain
the 'arch-capabilities' feature as it triggers a call
to virHostCPUGetMSR() which fails on FreeBSD.
Fortunately we already have convenient code for mocking
the host CPU probing.
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
There is no need to require users to produce iSCSI disk source
following our ordering of children elements. In fact, we don't
even accept our own order in the schema :(.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Laine Stump <laine@redhat.com>
In v5.10.0-508-gfbf3f3d86a, the 'error' label was removed from
bhyveParseBhyveCommandLine(), however the CONSUME_ARG() macro
still uses it. Fix the macro to return an error instead.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
