Re: cannot resolve host in VNET jail with RSS enabled

Reply: k simon : "Re: cannot resolve host in VNET jail with RSS enabled"
In reply to: moremore2_a_outlook.com: "Re: cannot resolve host in VNET jail with RSS enabled"
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From: Michael Gmelin <grembo_at_freebsd.org>
Date: Tue, 12 Apr 2022 16:51:47 UTC

On Tue, 12 Apr 2022 13:32:35 +0800
moremore2@outlook.com wrote:

> Hi,
>   Thanks for your kindly reply. I've never tried 'options rss' and
> 'options pcbgroup' before.

Hi,

I can reproduce the problem, it was introduced in 2e0bee4c7f8176 (so
not in the most recent epair patch).

It only happens on an RSS-enabled kernel with if hw.ncpu>1.

I wrote a script to reproduce the issue (warning: it messes with
networking and overwrites /etc/pf.conf):

https://people.freebsd.org/~grembo/epair_hang_ping.sh

Best
Michael

-- 
Michael Gmelin