Hello! The qib_lookup_qpn() function does RCU pointer traversals within RCU read-side critical sections as required, but the qp pointer is returned from this function after it does rcu_read_unlock(). One of the callers, qib_rcv_hdrerr(), dereferences this pointer upon return. This appears to me to be a bug. From what I can see, the structure pointed to by qp could be freed immediately after the rcu_read_unlock(), which would result in a SEGV when qib_rcv_hdrerr() does its later spin_lock(&qp->r_lock). So what am I missing here? Thanx, Paul -- To unsubscribe from this list: send the line "unsubscribe linux-rdma" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
