fe03f7a37fd0ef05149161f6b95a25493e1fe38f

Opensuse tumbleweed

Steps to reproduce:

```
./test/functional/wallet_backup.py --descriptors
{__NR_open_by_handle_at, "open_by_handle_at"},
    {__NR_openat, "openat"},
    {__NR_pause, "pause"},
    {__NR_perf_event_open, "perf_event_open"},
    {__NR_personality, "personality"},
    {__NR_pipe, "pipe"},
    {__NR_pipe2, "pipe2"},
    {__NR_pivot_root, "pivot_root"},
#ifdef __NR_pkey_alloc
    {__NR_pkey_alloc, "pkey_alloc"},
#endif
#ifdef __NR_pkey_free
    {__NR_pkey_free, "pkey_free"},
#endif
#ifdef __NR_pkey_mprotect
    {__NR_pkey_mprotect, "pkey_mprotect"},
#endif
    {__NR_poll, "poll"},
    {__NR_ppoll, "ppoll"},
    {__NR_prctl, "prctl"},
    {__NR_pread64, "pread64"},
    {__NR_preadv, "preadv"},
#ifdef __NR_preadv2
    {__NR_preadv2, "preadv2"},
#endif
    {__NR_prlimit64, "prlimit64"},
    {__NR_process_vm_readv, "process_vm_readv"},
    {__NR_process_vm_writev, "process_vm_writev"},
    {__NR_pselect6, "pselect6"},
    {__NR_ptrace, "ptrace"},