Re: CPU soft lockup in a spin lock using tproxy and nfqueue

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On 3/3/23 01:09, Florian Westphal wrote:

Which one?  As far as I can see TCP stack would end up adding a
duplicate quadruple to the hash if we only drop the reference and
keep the listen sk around.

I just thought that tcp_timewait_state_process is called by TCP stack to
handle TW state, which actually call inet_twsk_deschedule_put parallel to tproxy and
that would be the root cause of the deadlock.

So I guess now, basically we would leak away the tw socket if we do not call put in tproxy?

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