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Excessive memory balloon inflation can cause invocation of OOM-killer,
when Linux is under severe memory pressure. QEMU memballoon device
has a feature to release some memory at the last moment before some
process will be get killed by OOM-killer.
Introduce a new optional balloon device attribute 'autodeflate' to
enable or disable this feature.
On every socket connect(2) attempt we were re-launching session
libvirtd, up to 100 times in 5 seconds.
This understandably caused some weird load races and intermittent
qemu:///session startup failures
https://bugzilla.redhat.com/show_bug.cgi?id=1271183
When we autolaunch libvirtd for session URIs, we spin in a retry
loop waiting for the daemon to start and the connect(2) to succeed.
However if we exceed the retry count, we don't explicitly raise an
error, which can yield a slew of different error messages elsewhere
in the code.
Explicitly raise the last connect(2) failure if we run out of retries.
- Add some debugging
- Make the loop dependent only on retries
- Make it explicit that connect(2) success exits the loop
- Invert the error checking logic
Commit 2b6f6ad introduced the virxdrdefs.h header with
common definitions to be included in the protocol files,
but logging/log_protocol.x was missed, so add it there as well.
Hopefully this fixes build on OS X.
When we are receiving data in smaller chunks it might happen that
virNetServerClientDispatchRead() will be called multiple times. And as
that happens, if it is a message that also transfer headers, we decode
the number of them every single time and, unfortunately, also allocate
the memory for them. That causes a leak, in the best scenario.
Best viewed with '-w'.
Signed-off-by: Martin Kletzander <mkletzan@redhat.com>
Rather than continually cut-n-paste the strings into each command,
create a common macro to be used generically. Note that not all
'{.name = "interface",' entries are replaced, just those that have the
common .help string of "interface name or MAC address".
Signed-off-by: John Ferlan <jferlan@redhat.com>
Rather than continually cut-n-paste the strings into each command,
create a common macro to be used generically. Note that not all
'{.name = "network",' entries are replaced, just those that have the
common .help string of "network name or uuid".
Signed-off-by: John Ferlan <jferlan@redhat.com>
Rather than continually cut-n-paste the strings into each command,
create common macros to be used generically. Replace the more commonly
used "vol" option with a macro. This also adjusts 2 commands that
didn't have the correct helpstr - 'vol-create-from' and 'vol-clone'.
Both are described in the man page as taking vol, path, or key and
the code uses the virshCommandOptVol instead of virshCommandOptVolBy.
Signed-off-by: John Ferlan <jferlan@redhat.com>
Rather than continually cut-n-paste the strings into each command,
create a common macro to be used generically. The macro will take a
single argument _helpstr for the less common help string for each
command option. Note that only file options using "OT_DATA" and
"OFLAG_REQ" will be replace - others are left as is.
Signed-off-by: John Ferlan <jferlan@redhat.com>
Rather than continually cut-n-paste the strings into each command,
create a common macro to be used generically. The macro will take a
single argument _helpstr which for many options in virsh-domain.c
is simply "affect current domain". So, create a second macro within that
file in order to define the more common use as a revector to the
common macro with the common _helpstr.
Signed-off-by: John Ferlan <jferlan@redhat.com>
Rather than continually cut-n-paste the strings into each command,
create a common macro to be used generically. The macro will take a
single argument _helpstr which for many options in virsh-domain.c
is simply "affect running domain". So, create a second macro within that
file in order to define the more common use as a revector to the
common macro with the common _helpstr.
Signed-off-by: John Ferlan <jferlan@redhat.com>
Rather than continually cut-n-paste the strings into each command,
create a common macro to be used generically. The macro will take a
single argument _helpstr which for many options in virsh-domain.c
is simply "affect next boot". So, create a second macro within that
file in order to define the more common use as a revector to the
common macro with the common _helpstr.
Signed-off-by: John Ferlan <jferlan@redhat.com>
Rather than continually cut-n-paste the strings into each command,
create a common macro to be used generically. Note that not all
'{.name = "persistent",' entries are replaced, just those that have the
common .help string of "make live change persistent".
Non replaced instances are unique to the command.
Signed-off-by: John Ferlan <jferlan@redhat.com>
Rather than continually cut-n-paste the strings into each command,
create a common macro to be used generically. The macro will take a
single argument _helpstr which will be used to pass the translatable
helpstr since not all domain options can take the same string.
The majority of the options take 'N_("domain name, id or uuid")', so
create a separate macro with a _FULL suffix while those that do not
take the same string will use the VIRSH_COMMON_OPT_DOMAIN macro.
Signed-off-by: John Ferlan <jferlan@redhat.com>
The macro is slightly adjusted to add an argument "_helpstr". This
will be passed as a translation macro string since other uses of the
option may not have the same exact help string (such as is the case
when the uuid is not suppliable for create commands).
In virsh-pool.c - we'll create a singular VIRSH_COMMON_OPT_POOL_FULL
in order to pass along the 'N_("pool name or uuid")'
In virsh-volume.c there will be a VIRSH_COMMON_OPT_POOL_FULL and a
VIRSH_COMMON_OPT_POOL_NAME, which passes 'N_("pool name")' for
the commands that can only pass a name. There will also be a
VIRSH_COMMON_OPT_POOL_OPTIONAL which is used for the command
options which use OT_STRING and don't require the --pool argument.
Signed-off-by: John Ferlan <jferlan@redhat.com>
Commit id's 'cf793b00', 'e178688f', 'f9a6110f', '5372d49', and 'e193735'
added new VSH_POOL_ macros; however, it was pointed out after push that
commit id '834c5720' preferred use of VIRSH_ for the prefix over VSH_.
So this patch just changes the VSH_ to VIRSH_ and it changes the naming
format from VIRSH_<opt>_OPT_COMMON to VIRSH_COMMON_OPT_<opt>.
Signed-off-by: John Ferlan <jferlan@redhat.com>
if instanceId is NULL
When virNetDevVPortProfileGetStatus() was called with instanceId =
NULL (which is the case for all DISASSOCIATE requests in 802.1Qbh) it
would log the following error:
Could not find netlink response with expected parameters
even though the disassociate had been successfully completely. Then,
due to the fortunate coincidence of status having been initialized to
0 and then not changed when the "failure" was encountered, it would
still return a status of 0 (PORT_VDP_RESPONSE_SUCCESS), so the caller
would assume a successful operation.
This would result in a spurious log message though, and would fill in
LastErrorMessage, so that the API would return that error if it
happened during cleanup from some other error. That, in turn, would
lead to an incorrect supposition that the response to the port profile
disassociate was the cause of the failure.
During debugging, I noticed that the VF in question usually had *no
uuid* associated with it (big surprise)by the time the disassociate
completed, so the solution is *not* to send the previous instanceId
down.
This patch fixes virNetDevVPortProfileGetStatus() to only check the
VF's uuid in the status if it was given an instanceId to check against
when originally called. Otherwise it only checks that the particular
VF is present (it will be).
This does cause a slight difference in behavior - rather than
returning with status unchanged (and thus always 0) it will actually
get the IFLA_PORT_RESPONSE. This could lead to revelation of error
conditions we were previously ignoring. Or not. So far "not".
Use virDomainDefAddUSBController() to add an EHCI1+UHCI1+UHCI2+UHCI3
controller set to newly defined Q35 domains that don't have any USB
controllers defined.
This new function will add a single controller of the given model,
except the case of ich9-usb-ehci1 (the master controller for a USB2
controller set) in which case a set of related controllers will be
added (EHCI1, UHCI1, UHCI2, UHCI3). These controllers will not be
given PCI addresses, but should be otherwise ready to use.
"-1" is allowed for controller model, and means "default for this
machinetype". This matches the existing practice in
qemuDomainDefPostParse(), which always adds the default controller
with model = -1, and relies on the commandline builder to set a model
(that is wrong, but will be fixed later).
We need a virDomainDefAddController() that doesn't check for an
existing controller at the same index (since USB2 controllers must be
added in sets of 4 that are all at the same index), so rather than
duplicating the code in virDomainDefMaybeAddController(), split it
into two functions, in the process eliminating existing duplicated
code that loops through the controller list by calling
virDomainControllerFind(), which does the same thing).
The real Q35 machine puts the first USB controller set (EHCI+(UHCIx4))
on bus 0 slot 0x1D, and the 2nd USB controller set on bus 0 slot 0x1A,
so let's attempt to make the virtual machine match that for
controllers with auto-assigned addresses when possible.
Three test cases were added to assure that the proper addresses are
assigned - one with a single set of unaddressed USB controllers, one
with 3 (to grab both preferred slots plus one more), and one with the
order of the controller definitions reordered, to assure that the
auto-assignment isn't mixed up by order.
When qemuAssignDevicePCISlots() is looking for companion controllers
for a USB controller that has no PCI address specified, it initializes
a virDevicePCIAddress to 0000:00:00.0, fills it in with the
companion's address if one is found, then checks whether or not there
was a find based on slot == 0. On a system with a single PCI bus, that
is a valid way to check, because slot 0 is reserved, but on most other
PCI buses, slot 0 is not reserved, and is open for use by any
device. This patch adds a separate bool that is set when a companion
is found rather than relying on the faulty information provided with
"slot == 0".
Some of the protocol files already include handing of the missing int
types such as xdr_uint64_t, some don't. To fix it everywhere, move out
of the appropriate defines to the utils/virxdrdefs.h file and include
it where needed.
Signed-off-by: Roman Bogorodskiy <bogorodskiy@gmail.com>
OpenBSD uses 'struct sockpeercred' instead of 'struct ucred'. Add a
configure check that detects its presence and use if in the code that
could be compiled on OpenBSD.
Signed-off-by: Roman Bogorodskiy <bogorodskiy@gmail.com>
As cgroup implementation only works on Linux, it does not
make much sense to include sys/mount.h if other requirements are
not met, such as HAVE_MNTENT_H and HAVE_GETMNTENT_R.
Also, it fixes build on OpenBSD that requires to include sys/param.h
along with sys/mount.h.
Signed-off-by: Roman Bogorodskiy <bogorodskiy@gmail.com>
In wireshark commit ceb8d954 (v1.99.2) they have changed the
signature of a function that determines how long a libvirt packet
is. Now it accepts a void pointer for passing data into the
function. Well, this is nice, but we don't need it right now.
Anyway, we have to change our code.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
In the upcoming patch we will need yet another #ifdef code block
depending on wireshark version. Instead of defining
WIRESHARK_COMPAT2 or something lets just compare the version
right at the place so that we can clearly see what version broke
API.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
In wireshak commit 22149c55 (v.1.11.3) the API was renamed.
Follow the change in our code too. Since the wireshark change was
made in the very same version that we require at least we are
good to go.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
In wireshark, they have introduced their own memory allocator
wmem. This means that we need to adapt our code to that change
too. Notably 0ad15f88ccf434e8210ca is the wireshark commit you
want to look at. It's the one where they dropped the old API. The
new allocator has been introduced in 84cc3daa (v1.10.0), however,
was not exposed until 5c05c9e0 (v1.10.0). Since we already are
requiring 1.11.3 or higher no other change is needed.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
In the wireshark commit e2735ecfdd7a96c they dropped
proto_tree_add_text in favor of proto_tree_add_item. Adapt to
this change.
Moreover, the proto_tree_add_item API is around for ages and we
are already using it anyway. Therefore we don't need to change
required version of wireshark.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
While this is no functional change, whole channel definition is
going to be needed very soon. Moreover, while touching this obey
const correctness rule in qemuAgentOpen() - so far it was passed
regular pointer to channel config even though the function is
expected to not change pointee at all. Pass const pointer
instead.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
In qemu driver we listen to virtio channel events like an agent
connected to or disconnected from the guest part of socket.
However, with a little exception - when we find out that the
socket in question is the guest agent one, we connect or
disconnect guest agent which is done prior setting new state in
internal structure. Due to a bug in our code it may happen that
we got the event but failed to set it in internal structure
representing the channel.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Commit b22344f328 mistakenly reordered
Default-* lines. Thanks to that I noticed that we are very inconsistent
with our init scripts, so I took the liberty of synchronizing them,
updating them and making them all look shiny and new. So apart from
fixing the LSB requirements, I also fixed the ordering, specified
runlevels and fix the link to the reference specification.
Signed-off-by: Martin Kletzander <mkletzan@redhat.com>
We have a policy that if API may end up talking to a guest agent
it should require RW connection. We don't obey the rule in
virDomainGetTime().
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
This API does not change domain state. However, we have a policy
that an API talking to a guest agent requires RW access. But that
happens only if source == VIR_DOMAIN_INTERFACE_ADDRESSES_SRC_AGENT.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Implement a --timestamp option for 'virsh net-event', similar to the
one for 'virsh event'.
When the option is used, the human-readable timestamp will be printed
before the message.
Implement a --timestamp option for 'virsh qemu-monitor-event', similar
to the one for 'virsh event'.
When the option is used, the human-readable timestamp will be printed
before the message, and the timing information provided by QEMU will
not be displayed.
Earlier commit 7140807917 forgot to deal
properly with status XMLs where we want the libvirt-internal paths to be
kept in place and not cleared, otherwise we could end up copying a NULL
string and segfaulting th daemon.
Signed-off-by: Martin Kletzander <mkletzan@redhat.com>
If the q35 specific disable s3/s4 setting isn't supported, fallback to
specifying the PIIX setting, which is the previous behavior. It doesn't
have any effect, but qemu will just warn about it rather than error:
qemu-system-x86_64: Warning: global PIIX4_PM.disable_s3=1 not used
qemu-system-x86_64: Warning: global PIIX4_PM.disable_s4=1 not used
Since it doesn't error, I don't think we should either, since there
may be configs in the wild that already have q35 + disable_s3/4 (via
virt-manager)
