STM32H563 NetxDuo Packet Pool Deadlock

[stst9180]

Hi Community,
I'm currently facing an issue where NetXDuo with the STM32H563 locks itself out if the packet pool runs out of packets. In the current szenario the problem occurs when using the ftp-server addon and retriving  a file. As the chunks are posted to the tcp stack very fast, the socket_send routine returns success, but packets are not released (as they are currently not sent by the stack -> normal behaviour)
But if this happens to fast, the packet pool runs empty (which may also be an ok behaviour here). But then the network driver can't fill up it's rx-descriptors anymore and locks up completely. The packets are never released and a reboot of the device is necessary.

Is this a known issue somwhere? Any Ideas how/ where to debug further?

[stst9180]

I found my self a solution by dividing the packet pool according to:

https://en.na4.teamsupport.com/knowledgeBase/18188850
Nevertheless for my opinion the networking should recover from an empty internal packet pool on the driver side.
I can't find any documentation about how big the internal packet pools needs to be to make sure a deadlock is not possible.

Regards Pascal