Instead of continuing without informing the user, a warning will now be
displayed if the owner of a volume could not be determined due to a
storage error. In addition, an explicit check for the existence of the
underlying storage is added before the ownership check. If the storage
no longer exists, a warning will be displayed, consistent with the
handling of this scenario in other functions.

Signed-off-by: Michael Köppl <m.koe...@proxmox.com>
---
 PVE/QemuServer.pm | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/PVE/QemuServer.pm b/PVE/QemuServer.pm
index 5eb439a8..8a7bd30e 100644
--- a/PVE/QemuServer.pm
+++ b/PVE/QemuServer.pm
@@ -1821,6 +1821,7 @@ sub vm_is_volid_owner {
     if ($volid !~  m|^/|) {
        my ($path, $owner);
        eval { ($path, $owner) = PVE::Storage::path($storecfg, $volid); };
+       log_warn("ownership of volume '$volid' could not be determined: $@") if 
$@;
        if ($owner && ($owner == $vmid)) {
            return 1;
        }
@@ -1838,8 +1839,13 @@ sub vmconfig_register_unused_drive {
        delete $conf->{'special-sections'}->{cloudinit};
     } elsif (!drive_is_cdrom($drive)) {
        my $volid = $drive->{file};
-       if (vm_is_volid_owner($storecfg, $vmid, $volid)) {
-           PVE::QemuConfig->add_unused_volume($conf, $volid, $vmid);
+       my ($storeid, undef) = PVE::Storage::parse_volume_id($volid);
+       if (PVE::Storage::storage_config($storecfg, $storeid, 1)) {
+           if (vm_is_volid_owner($storecfg, $vmid, $volid)) {
+               PVE::QemuConfig->add_unused_volume($conf, $volid, $vmid);
+           }
+       } else {
+           log_warn("storage '$storeid' no longer exists, volume '$volid' will 
be removed");
        }
     }
 }
-- 
2.39.5



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