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for both vm_mon_cmd calls. under certain circumstances, the following
sequence of events can otherwise fail when live-migrating under load:
S...source node
T...target node
0: migration is complete, handover from S to T starts
1: S: logically move VM config file from S to T via rename()
2: S: rename returns, config file is (visibly) moved on S
3: S: trigger resume on T via mtunnel
4a: T: call vm_resume while config file move is not yet visible on T
4b: T: call vm_resume while config file move is already visible on T
4a instead of 4b means vm_mon_cmd will die in check_running unless
vm_mon_cmd_nocheck is used.
under heavy pmxcfs load and a slow cluster/corosync network, there can
be a few seconds of delay between 1 and 2, with a subsequent race ending in 4a
instead of 4b.
this issue was reported to occur on bulk migrations.
Signed-off-by: Fabian Grünbichler <f.gruenbichler@proxmox.com>
cloudinit is just completely broken...
Until we rewrite this to a sane designe (i.e., never backup, mirror,
... any CI disk anywhere - the state is in the config and gets
created on start and deleted on stop anyway) do this..
Co-developed-by: Mira Limbek <m.limbek@proxmox.com>
Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
Resolves the issue of restoring a VM that has a cloudinit drive
configured to a new VMID. The VMID of the disk name gets now remapped
correctly and in the process the cloudinit disk is created with the same size
as in PVE/API2/Qemu.pm create_disks and in PVE/QemuServer/Cloudinit
commit_cloudinit_disk as the same constant is used.
This is done by matching any line starting with either 'ide', 'sata' or
'scsi' and then check if it is a cloudinit drive. As cloudinit drives
are attached as cdrom, only those 3 are possible. For the cloudinit
check we use 'parse_drive' followed by 'drive_is_cloudinit' so no custom
regex is necessary.
'--targetstorage' is also taken into account on restore now for
cloudinit disks. If a target storage is specified the format is either
kept if possible, or changed to the default of that storage.
This should fix#1807 completely. The restore error was already resolved
with commit 7e8ab2a, but the vmid of the disk might not have matched the new
one.
Signed-off-by: Mira Limbeck <m.limbeck@proxmox.com>
with commit 64d1a6a it's now possible to specify a format other than raw
or qcow2 when creating VMs. This can lead to an error when cloning the
VMs and a cloudinit disk with a different format is attached (e.g.
vmdk).
We use QEMU_FORMAT_RE in drive_is_cloudinit and according to the
QEMU_FORMAT_RE we support 7 different formats.
With this change we add any format other than 'raw' as '.<format>' to the
name and no longer die on any other format. Cloudinit disks with invalid
format are not cloned as the drive is recognized as cdrom, not cloudinit.
Signed-off-by: Mira Limbeck <m.limbeck@proxmox.com>
The restore of a backup from a VM template will first restore the VM and then
convert the restored VM back into a template.
This automatically performes the steps of the current behaviour, where the user
has to manually convert the restored VM back to a template.
Signed-off-by: Christian Ebner <c.ebner@proxmox.com>
used for online local disks via qemu_drive_mirror
Add TODO comment for offline disks, as clone_disk calls `qemu-img
convert`, which does not have a bandwidth limit parameter.
Signed-off-by: Stoiko Ivanov <s.ivanov@proxmox.com>
this makes it possible to give a storage for state saving, if one
wants to use a different storage than for snapshots or does not
want to save this info into the config
Signed-off-by: Dominik Csapak <d.csapak@proxmox.com>
if a vm has the 'suspended' lock, we resume with the saved state
and remove the lock, the saved vmstate and the saved runningmachine
after the vm started
Signed-off-by: Dominik Csapak <d.csapak@proxmox.com>
the idea is to have the same logic as with snapshots, but without
the snapshotting of the disks, and after saving the vm state (incl memory),
we hard shut off the guest.
this way the disks will not be touched anymore by the guest
to prevent any alteration of the vm (incl migration, hw changes, etc) we
add a config lock 'suspend'
Signed-off-by: Dominik Csapak <d.csapak@proxmox.com>
we map scsiX to virtioscsiX/scsihwX when we use virtio-scsi-single to add
and iothread so we have to map it back when we delete an iothread, else the
parsing fails with
'invalid drive key: virtioscsi0'
Signed-off-by: Dominik Csapak <d.csapak@proxmox.com>
qemu-img uses the qemu default initiator name 'iqn.2008-11.org.linux-kvm'
since we use the one of the host (/etc/iscsi/initiatorname.iscsi) when
using it with a running vm, we want to using it also when moving a disk
with qemu-img
to do that we have give qemu-img the image in as a full option string
this fixes the issue that we could not move an zfs-over-iscsi disk
without allowing the default qemu initiator
Signed-off-by: Dominik Csapak <d.csapak@proxmox.com>
Adds the 'cicustom' option to specify either or both network and user
options as property strings. Their parameters are files in a snippets
storage (e.g. local:snippets/network.yaml). If one or both are specified
they are used instead of their respective generated configuration.
This allows the use of completely custom configurations and is also a
possible solution for bug #2068 by specifying a custom user file that
contains package_upgrade: false.
Tested with Ubuntu 18.10 and cloud-init 18.4.7
Signed-off-by: David Limbeck <d.limbeck@proxmox.com>
we also need to set the link status if the whole device changed,
otherwise a change of macaddress allows a network connection even
if link_down is set to 1
Signed-off-by: Dominik Csapak <d.csapak@proxmox.com>
with such a shared memory device, a vm can share data with other
vms or with the host via memory
one of the use cases is looking-glass[1] with pci-passthrough, which copies
the guest fb to the host and you get a high-speed, low-latency
display client for the vm
on vm stop we delete the file again
1: https://looking-glass.hostfission.com/
Signed-off-by: Dominik Csapak <d.csapak@proxmox.com>
This allows to set the wwn parameter for ide, sata and scsi disks in the VM
config and passes it to the qemu command on execution.
VirtIO Block does not supports this property, so exclude it from
there.
Signed-off-by: Christian Ebner <c.ebner@proxmox.com>
Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
commit 3c23aa808ccc946bad92d9bc63b6f833c61d0f52 tried to fix a issue
where after a stop mode backup a scope could still linger around, but
it actually removed the wrong check. If we want to remove a
lingering, not yet cleaned up, scope we need to check if said scope
exists not if a VM process is still running. While they are corelated
the scope will always get cleaned up _after_ it's processes are gone.
Should fix#2043, but as this is seemingly not that easy to fix one
for all I'll put the should as disclaimer here.
Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
Cc: Wolfgang Bumiller <w.bumiller@proxmox.com>
this adds a new config option for it, and executes it on four
points in time:
'pre-start'
'post-start'
'pre-stop'
'post-stop'
on pre-start we abort if the script fails
and pre-stop will not be called if the vm crashes or if
the vm gets powered off from inside the guest
Signed-off-by: Dominik Csapak <d.csapak@proxmox.com>
The qm CLI command offer the config and showcmd functions. Both of those
outputs may vary with respect to a given snapshot. This adds a switch
that shows the corresponding snapshot's config and command line.
The code needs a newer libpve-guest-common-perl, thus bumping the
dependency.
Signed-off-by: Rhonda D'Vine <rhonda@proxmox.com>
this patch allows the user to explicitely set a virtual vga,
even when using the 'x-vga' flag, this is sometimes necessary,
as some users need the 'x-vga' flag on the pci device,
but still want to use a virtual vga
Signed-off-by: Dominik Csapak <d.csapak@proxmox.com>
with this, a user can set the hv_vendor_id independently of
any 'x-vga=on' setting he may or may not have configured.
Signed-off-by: Dominik Csapak <d.csapak@proxmox.com>
Win7 is very picky about pcie assignments and fails with
'error 12' the way we add hospci devices.
To combat that, we simply give the hostpci device a normal port
instead.
Start with address 0x10, so that we have space before those devices,
and between them and the ones configured in pve-q35.cfg should we
need it in the future.
Signed-off-by: Dominik Csapak <d.csapak@proxmox.com>
When not setting 'vga' we would get a warning:
Use of uninitialized value $type in string eq at
/usr/share/perl5/PVE/QemuServer.pm line 2026.
This patch changes the order of the conditions and checks if $type is set
before using it, so that we do not get the warning anymore.
Signed-off-by: Dominik Csapak <d.csapak@proxmox.com>
