Hi, When I try to swapon a file on samba share in upstream, it's failed with "swapon failed: Invalid argumen". I'm not sure if it's expected or a bug. Could you tell me more about it? # dd if=/dev/zero of=file bs=4k count=1024 1024+0 records in 1024+0 records out 4194304 bytes (4.2 MB, 4.0 MiB) copied, 0.114088 s, 36.8 MB/s # mkswap file mkswap: file: insecure permissions 0755, 0600 suggested. Setting up swapspace version 1, size = 4 MiB (4190208 bytes) no label, UUID=81ae8f60-c04a-4c1b-8b63-d441fdbf3a92 # swapon file swapon: /root/cifs/file: insecure permissions 0755, 0600 suggested. swapon: /root/cifs/file: swapon failed: Invalid argument # uname -r 5.0.0-rc1+ Thanks. -- Best regards! XiaoLi Feng 冯小丽 Red Hat Software (Beijing) Co.,Ltd filesystem-qe Team IRC:xifeng,#channel: fs-qe