06/08/2020 14:47, wangyunjian:

From: Thomas Monjalon [mailto:thomas@monjalon.net]

quoted

29/07/2020 13:35, wangyunjian:

quoted

From: Yunjian Wang <redacted>

When setup tx queues, we will create a mempool for the 'gso_ctx'.
The mempool is not freed when closing tap device. If free the tap
device and create it with different name, it will create a new
mempool. This maybe cause an OOM.

While at it, please look at implementing RTE_ETH_DEV_CLOSE_REMOVE
behaviour in tap. Thanks

I read the codes about tap device. Currently, the tap pmd doesn't
use RTE_ETH_DEV_CLOSE_REMOVE flag.

I know. That's why I suggest to switch to RTE_ETH_DEV_CLOSE_REMOVE.
Please see this deprecation notice:
	http://git.dpdk.org/dpdk/commit/?id=7efbaa7b4e423