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When doing 'virsh vol-dumpxml' on a gluster pool's volume, the
resulting URI incorrectly omitted a slash between hostname and
path: gluster://192.168.122.206rhsvol1/fedora-19.img
This is fallout from me rebasing earlier versions of my patch
that ended up as commit efee1af; I had originally played with
always requiring the gluster volume to have a leading slash,
but it was easier to use the gluster API if the gluster volume
name was guaranteed to have no slash. While I got the URI of
the pool correct, I forgot to fix the URI of a libvirt volume.
* src/storage/storage_backend_gluster.c
(virStorageBackendGlusterRefreshVol): Use correct starting point
since uri construction requires leading slash.
Signed-off-by: Eric Blake <eblake@redhat.com>
https://bugzilla.redhat.com/show_bug.cgi?id=1035955
There's a window when starting a qemu process between fork() and exec()
during which we are doing things that may fail but not tunnelling the
error to the daemon. This is basically all within qemuProcessHook().
So whenever we fail in something, e.g. placing a process onto numa node,
users are left with:
error: Child quit during startup handshake: Input/output error
while the original error is thrown into the domain log:
libvirt: error : internal error: NUMA memory tuning in 'preferred'
mode only supports single node
Hence, we should read the log file and search for the error message and
report it to users.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Each unique event ID will thus be composed by 1 byte for the namespace
and 1 byte for a namespace-specific ID. The namespace for domain event
needs to be 0 for compatibility reasons.
- systemctl and the %systemd_* RPM macros can take multiple unit names
in the one invocation. Make use of this to avoid repeated systemd
daemon reloads.
- virtlockd was only properly enabled and disabled when using systemd,
but when systemd RPM macros were not available (e.g. on Fedora < 18).
Make sure it's enabled when systemd RPM macros are present, or when
using initscripts.
- Always use "reload" on virtlockd, not "condrestart". This allows it to
cleanly re-execute itself without losing running state. Ignore any
error should the reload fail.
- Move the reloading of virtlockd and libvirtd via their initscripts
into the daemon package's %postun scriptlet. These services must be
restarted after all of the libvirt-daemon-driver-* packages have
been upgraded during the same RPM transaction.
- Add a %triggerpostun executed only when upgrading an older
libvirt-daemon. As an older package would only reload libvirtd during
%post, and the newer package would only reload libvirtd during
%postun, such an upgrade would not reload libvirtd at all without the
trigger.
Signed-off-by: Michael Chapman <mike@very.puzzling.org>
SIGHUP is commonly used to instruct a daemon to reload its config. For
now we should handle it in virtlockd just like SIGUSR1, rather than
having it kill the process.
Signed-off-by: Michael Chapman <mike@very.puzzling.org>
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
- Use SIGUSR1, not SIGHUP, on reload. At present, virtlockd only
responds to the former.
- Fix PID file for virtlockd.
- Do not start virtlockd in any runlevels by default. It needs to be
explicitly selected in libvirt's qemu.conf anyway, so there is no
need to have it running on all systems regardless.
- Fix chkconfig priorities to ensure virtlockd is started before
libvirtd is started, and stopped after libvirtd is stopped.
- Add "Should-Start: virtlockd" to the libvirtd initscript's LSB header,
for the same reason.
- Add "Default-Stop" to both libvirtd and virtlockd initscripts. LSB
does not guarantee that this defaults to the inverse of
"Default-Start".
Signed-off-by: Michael Chapman <mike@very.puzzling.org>
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
- Pass VIRTLOCKD_ARGS through to virtlockd.
- Use SIGUSR1, not SIGHUP, in ExecReload. At present, virtlockd only
responds to the former.
- Have "systemctl enable virtlockd.service" enable virtlockd.socket,
rather than throw an error.
- Make virtlockd.socket wanted by sockets.target, rather than
multi-user.target. This is consistent with other socket units in
Fedora, and it ensures that the socket is available before libvirtd is
started.
Signed-off-by: Michael Chapman <mike@very.puzzling.org>
When changing memtune limits to unlimited with AFFECT_CONFIG, the
values in virDomainDef are set to PARAM_UNLIMITED, which causes the
whole <memtune> to be formatted. This can be changed in all drivers,
but it also makes sense to use the default (0) as another value for
"unlimited", since zero memory limit makes no sense.
Signed-off-by: Martin Kletzander <mkletzan@redhat.com>
For dead domains that have no memtune limits, we return 0 instead of
"unlimited", this patch fixes it to return PARAM_UNLIMITED.
Signed-off-by: Martin Kletzander <mkletzan@redhat.com>
Since kernel 3.12 (commit 34ff8dc08956098563989d8599840b130be81252 in
linux-stable.git in particular) the value for 'unlimited' in cgroup
memory limits changed from LLONG_MAX to ULLONG_MAX. Due to rather
unfortunate choice of our VIR_DOMAIN_MEMORY_PARAM_UNLIMITED constant
(which we transfer as an unsigned long long in Kibibytes), we ended up
with the situation described below (applies to x86_64):
- 2^64-1 (ULLONG_MAX) -- "unlimited" in kernel = 3.12
- 2^63-1 (LLONG_MAX) -- "unlimited" in kernel < 3.12
- 2^63-1024 -- our PARAM_UNLIMITED scaled to Bytes
- 2^53-1 -- our PARAM_UNLIMITED unscaled (in Kibibytes)
This means that when any number within (2^63-1, 2^64-1] is read from
memory cgroup, we are transferring that number instead of "unlimited".
Unfortunately, changing VIR_DOMAIN_MEMORY_PARAM_UNLIMITED would break
ABI compatibility and thus we have to resort to a different solution.
With this patch every value greater than PARAM_UNLIMITED means
"unlimited". Even though this may seem misleading, we are already in
such unclear situation when running 3.12 kernel with memory limits set
to 2^63.
One example showing most of the problems at once (with kernel 3.12.2):
# virsh memtune asdf --hard-limit 9007199254740991 --swap-hard-limit -1
# echo 12345678901234567890 >\
/sys/fs/cgroup/memory/machine/asdf.libvirt-qemu/memory.soft_limit_in_bytes
# virsh memtune asdf
hard_limit : 18014398509481983
soft_limit : 12056327051986884
swap_hard_limit: 18014398509481983
Signed-off-by: Martin Kletzander <mkletzan@redhat.com>
We were unconditionally removing the device from the host list, when it
should only be done on error.
This fixes USB collision detection when hotplugging the same device to
two guests.
If we hit a collision, we free the USB device while it is still part
of our temporary USBDeviceList. When the list is unref'd, the device
is free'd again.
Make the initial device freeing dependent on whether it is present
in the temporary list or not.
Similar to what Jiri did for cgroup setup/teardown in 05e149f94, push
it all into the device handler functions so we can do the necessary prep
work before claiming the device.
This also fixes hotplugging USB devices by product/vendor (virt-manager's
default behavior):
https://bugzilla.redhat.com/show_bug.cgi?id=1016511
The libvirt-daemon package contains several driver-specific files,
directories, and script, which can be problematic when building the
package with multiple hypervisor support, e.g. both QEMU and Xen.
E.g. installing a QEMU+Xen enabled libvirt-daemon on a Xen-only system
will result in the creation of qemu and kvm groups and a qemu user.
Move the driver-specific files, directories, and script to the
respective driver subpackages.
The daemon-config-{network,nwfilter} subpackages are built regardless
of whether or not with_driver_modules is defined, therefore don't
conditionally define their files list.
