[REGRESSION] vsocket timeout with kata containers agent 3.2.0 and kernel 6.1.63

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#regzbot introduced v6.1.62..v6.1.63
#regzbot introduced: baddcc2c71572968cdaeee1c4ab3dc0ad90fa765

We hit this regression when updating our guest vm kernel from 6.1.62 to
6.1.63 -- bisecting, this problem was introduced
in baddcc2c71572968cdaeee1c4ab3dc0ad90fa765 -- virtio/vsock: replace
virtio_vsock_pkt with sk_buff --
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=v6.1.63&id=baddcc2c71572968cdaeee1c4ab3dc0ad90fa765

We're getting a timeout when trying to connect to the vsocket in the
guest VM when launching a kata containers 3.2.0 agent. We haven't done
much more to understand the problem at this point.

We can reproduce 100% of the time but don't currently have a simple
reproducer as the problem was found in our build service which uses
kata-containers (with cloud-hypervisor).

We have not checked the mainline as we currently are tied to 6.1.x.

-Simon




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