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SubjectRe: [PATCH v2] selftest: txtimestamp: fix net ns entry logic
On Tue, Jul 21, 2020 at 6:26 PM Willem de Bruijn
<willemdebruijn.kernel@gmail.com> wrote:
>
> Fixes: cda261f421ba ("selftests: add txtimestamp kselftest")
>
> Acked-by: Willem de Bruijn <willemb@google.com>

Besides, is it just me or this test fails frequently? I've been
running it on 5.4.x, 5.7.x and 5.8-rcX and it often fails:

...
USR: 1595405084 s 947366 us (seq=0, len=0)
SND: 1595405084 s 948686 us (seq=9, len=10) (USR +1319 us)
ERROR: 6542 us expected between 6000 and 6500
ACK: 1595405084 s 953908 us (seq=9, len=10) (USR +6541 us)
USR: 1595405084 s 997979 us (seq=0, len=0)
SND: 1595405084 s 999101 us (seq=19, len=10) (USR +1121 us)
ACK: 1595405085 s 4438 us (seq=19, len=10) (USR +6458 us)
USR: 1595405085 s 49317 us (seq=0, len=0)
SND: 1595405085 s 50680 us (seq=29, len=10) (USR +1363 us)
ERROR: 6661 us expected between 6000 and 6500
ACK: 1595405085 s 55978 us (seq=29, len=10) (USR +6661 us)
USR: 1595405085 s 101049 us (seq=0, len=0)
SND: 1595405085 s 102342 us (seq=39, len=10) (USR +1293 us)
ERROR: 6578 us expected between 6000 and 6500
ACK: 1595405085 s 107627 us (seq=39, len=10) (USR +6577 us)
USR-SND: count=4, avg=1274 us, min=1121 us, max=1363 us
USR-ACK: count=4, avg=6559 us, min=6458 us, max=6661 us


In particular, "run_test_v4v6 ${args} # tcp" is the most
susceptible to failures (though i've seen the udp variant fail too).
--
bye,
p.

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