fix: improved validatation for ram_reserved in anvil.conf

Anvil/Tools/Get.pm

@@ -718,9 +718,16 @@ ORDER BY
 	}
 
 	# Check if the reserved RAM is overriden by the config
-    my $ram_reserved = $anvil->data->{anvil_resources}{ram}{reserved};
-    if (not $ram_reserved or $ram_reserved < 0 or $ram_reserved > $anvil->data->{anvil_resources}{$anvil_uuid}{ram}{hardware})
+	my $ram_reserved = $anvil->Convert->human_readable_to_bytes({
+		base2 => 1,
+		size  => $anvil->data->{anvil_resources}{ram}{reserved}, 
+	});
+	if (($ram_reserved eq "!!error!!") or 
+		(not $ram_reserved)            or 
+	    ($ram_reserved < (2**30))      or 
+	    ($ram_reserved > $anvil->data->{anvil_resources}{$anvil_uuid}{ram}{hardware}))
 	{
+		# The reserved RAM is invalid, so reset it.
 		$ram_reserved = 0;
 	}
 
@@ -733,11 +740,6 @@ ORDER BY
 	$anvil->data->{anvil_resources}{$anvil_uuid}{ram}{available} -= $anvil->data->{anvil_resources}{$anvil_uuid}{ram}{reserved};
 	$anvil->data->{anvil_resources}{$anvil_uuid}{ram}{available} -= $anvil->data->{anvil_resources}{$anvil_uuid}{ram}{allocated};
 
-    if ($anvil->data->{anvil_resources}{$anvil_uuid}{ram}{available} < 0)
-    {
-        $anvil->data->{anvil_resources}{$anvil_uuid}{ram}{available} = 0;
-    }
-
 	$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => $debug, list => { 
 		"anvil_resources::${anvil_uuid}::ram::allocated" => $anvil->data->{anvil_resources}{$anvil_uuid}{ram}{allocated}." (".$anvil->Convert->bytes_to_human_readable({'bytes' => $anvil->data->{anvil_resources}{$anvil_uuid}{ram}{allocated}}).")",
 		"anvil_resources::${anvil_uuid}::ram::reserved"  => $anvil->data->{anvil_resources}{$anvil_uuid}{ram}{reserved}." (".$anvil->Convert->bytes_to_human_readable({'bytes' => $anvil->data->{anvil_resources}{$anvil_uuid}{ram}{reserved}}).")",