$res->{swapfree} = $d->{swapfree};
$res->{swapused} = $res->{swaptotal} - $res->{swapfree};
- my $spages = PVE::Tools::file_read_firstline("/sys/kernel/mm/ksm/pages_sharing");
+ my $spages = PVE::Tools::file_read_firstline("/sys/kernel/mm/ksm/pages_sharing") // 0 ;
$res->{memshared} = int($spages) * 4096;
return $res;