Re: [RFC PATCH 1/2] RDMA/rxe: drive UDP tunnel socket lifetime from the GID table

[Serhat Kumral]

Thanks for the trace.

> KASAN: null-ptr-deref in range
> [0x0000000000000000-0x0000000000000007]
> RIP: 0010:ip_rcv+0xeb/0x570

This shows that the failure is not a deadlock, but a NULL pointer
dereference in the IPv4 receive path.

To identify the exact source line and confirm which pointer is NULL,
could you also provide the output of:

  ./scripts/faddr2line vmlinux 'ip_rcv+0xeb/0x570'

My series does not modify the RXE IPv4 packet-processing functions,
but it does change the lifetime of both IPv4 and IPv6 UDP tunnel
sockets.

Could you please run the same selftest on the same commit and config
with this series reverted, and report whether it still crashes?