On 03.03.26 03:22, Jakub Kicinski wrote:
> On Mon, 2 Mar 2026 16:16:38 +0100 Dragos Tatulea wrote:
>>> + hp_file = "/proc/sys/vm/nr_hugepages"
>>> + with open(hp_file, 'r+', encoding='utf-8') as f:
>>> + nr_hugepages = int(f.read().strip())
>>> + if nr_hugepages < 64:
>>> + f.seek(0)
>>> + f.write("64")
>>> + defer(lambda: open(hp_file, 'w',
>>> encoding='utf-8').write(str(nr_hugepages)))
>>> +
>>> single(cfg)
>>> rx_cmd = f"{cfg.bin_local} -s -p {cfg.port} -i {cfg.ifname} -q
>>> {cfg.target} -x 2"
>>> tx_cmd = f"{cfg.bin_remote} -c -h {cfg.addr_v['6']} -p {cfg.port} -l
>>> 12840"
>>>
>>> probe = cmd(rx_cmd + " -d", fail=False)
>>> if probe.ret == SKIP_CODE:
>>> - raise KsftSkipEx(probe.stdout)
>>> + raise KsftSkipEx(probe.stdout.strip())
>>>
>> While working on a similar fix I found that the probe here also requires a
>> barrier.
>
> Hm, I'm not hitting this issue. Maybe because I'm testing in QEMU?
> If you can still repro after this series could you send a follow up?
Will do.
Thanks,
Dragos
