From mboxrd@z Thu Jan 1 00:00:00 1970 From: Bart Van Assche Subject: mlx4: kernel 3.4-rc1 breaks libumad Date: Mon, 02 Apr 2012 07:42:56 +0000 Message-ID: <4F795880.4070306@acm.org> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Return-path: Sender: linux-rdma-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: linux-rdma-u79uwXL29TY76Z2rM5mHXA@public.gmane.org List-Id: linux-rdma@vger.kernel.org Hi, Apparently applications based on libumad can find local ports with kernel 3.2.x but not with kernel 3.4-rc1. # uname -r 3.4.0-rc1 # ls /sys/class/infiniband/mlx4_0/ports/1/rate /sys/class/infiniband/mlx4_0/ports/1/rate # cat /sys/class/infiniband/mlx4_0/ports/1/rate cat: /sys/class/infiniband/mlx4_0/ports/1/rate: Invalid argument This breaks libumad because this makes sys_read_string() fail and hence also get_port(). Bart. -- To unsubscribe from this list: send the line "unsubscribe linux-rdma" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html