On Wed, 9 Jul 2025 at 16:54, Konstantin Shkolnyy <kshk@xxxxxxxxxxxxx> wrote: > > I'm seeing a problem on s390 with the new "SOCK_STREAM transport change > null-ptr-deref" test. Here is how it appears to happen: > > test_stream_transport_change_client() spins for 2s and sends 70K+ > CONTROL_CONTINUE messages to the "control" socket. > > test_stream_transport_change_server() spins calling accept() because it > keeps receiving CONTROL_CONTINUE. > > When the client exits, the server has received just under 1K of those > 70K CONTROL_CONTINUE, so it calls accept() again but the client has > exited, so accept() never returns and the server never exits. > Yep, I saw exactly the same issue while testing a new test. I already sent a fix: https://lore.kernel.org/netdev/20250708111701.129585-1-sgarzare@xxxxxxxxxx/ Please, send a T-b/R-b on that if you can. Stefano
