Re: [PATCH net-next] selftests: net: do not detect PPPoX loopback

[Matthieu Baerts]

Hi Qingfang,

On 03/06/2026 08:17, Qingfang Deng wrote:
> By default, pppd attempts to detect loopbacks on the underlying
> interface using a pseudo-randomly generated magic number and checks if
> the same value is received. The seed for the PRNG is a hash of hostname
> XOR current time XOR pid, which is likely to collide on NIPA, causing
> false positives. Disable magic number generation.

Thank you for the fix!

It looks like the test is no longer flaky [1], so I just unignored it on
NIPA.

[1] https://netdev.bots.linux.dev/contest.html?skip=0&test=pppol2tp-sh

Cheers,
Matt