fe03f7a37fd0ef05149161f6b95a25493e1fe38f

Opensuse tumbleweed

Steps to reproduce:

```
./test/functional/wallet_backup.py --descriptors
{__NR_mknod, "mknod"},
    {__NR_mknodat, "mknodat"},
    {__NR_mlock, "mlock"},
    {__NR_mlock2, "mlock2"},
    {__NR_mlockall, "mlockall"},
    {__NR_mmap, "mmap"},
    {__NR_modify_ldt, "modify_ldt"},
    {__NR_mount, "mount"},
    {__NR_move_pages, "move_pages"},
    {__NR_mprotect, "mprotect"},
    {__NR_mq_getsetattr, "mq_getsetattr"},
    {__NR_mq_notify, "mq_notify"},
    {__NR_mq_open, "mq_open"},
    {__NR_mq_timedreceive, "mq_timedreceive"},
    {__NR_mq_timedsend, "mq_timedsend"},
    {__NR_mq_unlink, "mq_unlink"},
    {__NR_mremap, "mremap"},
    {__NR_msgctl, "msgctl"},
    {__NR_msgget, "msgget"},
    {__NR_msgrcv, "msgrcv"},
    {__NR_msgsnd, "msgsnd"},
    {__NR_msync, "msync"},
    {__NR_munlock, "munlock"},
    {__NR_munlockall, "munlockall"},
    {__NR_munmap, "munmap"},
    {__NR_name_to_handle_at, "name_to_handle_at"},
    {__NR_nanosleep, "nanosleep"},
    {__NR_newfstatat, "newfstatat"},
    {__NR_nfsservctl, "nfsservctl"},
    {__NR_open, "open"},