[pve-devel] [PATCH qemu-server 6/6] vm start: remove left-over VM-state-related properties
Fiona Ebner
f.ebner at proxmox.com
Wed Sep 17 18:30:30 CEST 2025
When cloning from a snapshot, VM-state-related properties would be
accidentally copied, see commit "partially fix #6805: api: clone:
properly remove all snapshot-related info". Detect and remove such
left-over properties upon VM start.
Signed-off-by: Fiona Ebner <f.ebner at proxmox.com>
---
src/PVE/QemuServer.pm | 16 ++++++++++++++++
1 file changed, 16 insertions(+)
diff --git a/src/PVE/QemuServer.pm b/src/PVE/QemuServer.pm
index 90a8be3e..f7f85436 100644
--- a/src/PVE/QemuServer.pm
+++ b/src/PVE/QemuServer.pm
@@ -5553,6 +5553,20 @@ sub vm_migrate_alloc_nbd_disks {
return $nbd;
}
+my sub remove_left_over_vmstate_opts {
+ my ($vmid, $conf) = @_;
+
+ my $found;
+ for my $opt (qw(running-nets-host-mtu runningmachine runningcpu)) {
+ if (defined($conf->{$opt})) {
+ print "No VM state set, removing left-over option '$opt'\n";
+ delete $conf->{$opt};
+ $found = 1;
+ }
+ }
+ PVE::QemuConfig->write_config($vmid, $conf) if $found;
+}
+
# see vm_start_nolock for parameters, additionally:
# migrate_opts:
# storagemap = parsed storage map for allocating NBD disks
@@ -6039,6 +6053,8 @@ sub vm_start_nolock {
}
delete $conf->@{qw(lock vmstate running-nets-host-mtu runningmachine runningcpu)};
PVE::QemuConfig->write_config($vmid, $conf);
+ } elsif (!$conf->{vmstate}) {
+ remove_left_over_vmstate_opts($vmid, $conf);
}
PVE::GuestHelpers::exec_hookscript($conf, $vmid, 'post-start');
--
2.47.2
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