Hi Lauro, Samuel, Aloisio, I think there might be a problem in the netlink notifier in the NFC subsystem. The function mutex_lock (which might sleep) is called in the function nfc_genl_rcv_nl_event. As far as I understand, the function nfc_genl_rcv_nl_event can be executed in atomic context (since it's registered via atomic_notifier_chain_register in af_netlink.c). I'll appreciate your comments on this issue. Thanks & BR, Ilan -- To unsubscribe from this list: send the line "unsubscribe linux-wireless" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html