Hello, since upgrading from kernel 6.10 to 6.11 (also 6.12) one Infiniband card sometimes hits this error: kernel: workqueue: Failed to create a rescuer kthread for wq "ipoib_wq": -EINTR kernel: ib0: failed to allocate device WQ kernel: mlx5_1: failed to initialize device: ib0 port 1 (ret = -12) kernel: mlx5_1: couldn't register ipoib port 1; error -12 The system has two cards: 41:00.0 Infiniband controller: Mellanox Technologies MT28908 Family [ConnectX-6] c4:00.0 Infiniband controller: Mellanox Technologies MT28908 Family [ConnectX-6] If that happens one cannot use that card for TCP/IP communication. It does not always happen, but when it does it always happens with the second card mlx5_1. Never with mlx5_0. This happens on four different systems. Any idea what I can do to stop this from happening? Regards, Holger PS: Firmware for both cards is 20.41.1000
