Hi, I ffwded bpf tree with the recent net fixes and caught this: [ 48.386337] WARNING: CPU: 32 PID: 3276 at net/mptcp/subflow.c:1430 subflow_data_ready+0x147/0x1c0 [ 48.392012] Modules linked in: dummy bpf_testmod(O) [last unloaded: bpf_test_no_cfi(O)] [ 48.396609] CPU: 32 PID: 3276 Comm: test_progs Tainted: G O 6.8.0-12873-g2c43c33bfd23 #1014 #[ 48.467143] Call Trace: [ 48.469094] <TASK> [ 48.472159] ? __warn+0x80/0x180 [ 48.475019] ? subflow_data_ready+0x147/0x1c0 [ 48.478068] ? report_bug+0x189/0x1c0 [ 48.480725] ? handle_bug+0x36/0x70 [ 48.483061] ? exc_invalid_op+0x13/0x60 [ 48.485809] ? asm_exc_invalid_op+0x16/0x20 [ 48.488754] ? subflow_data_ready+0x147/0x1c0 [ 48.492159] mptcp_set_rcvlowat+0x79/0x1d0 [ 48.495026] sk_setsockopt+0x6c0/0x1540 It doesn't reproduce all the time though. Some race? Known issue?
