From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from sam.nabble.com (sam.nabble.com [216.139.236.26]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (Client did not present a certificate) by ozlabs.org (Postfix) with ESMTPS id 694A1B6F80 for ; Mon, 7 Nov 2011 21:52:46 +1100 (EST) Received: from isper.nabble.com ([192.168.236.156]) by sam.nabble.com with esmtp (Exim 4.72) (envelope-from ) id 1RNMVx-0008QS-GL for linuxppc-dev@ozlabs.org; Mon, 07 Nov 2011 02:33:17 -0800 Message-ID: <32788715.post@talk.nabble.com> Date: Mon, 7 Nov 2011 02:33:17 -0800 (PST) From: suggest To: linuxppc-dev@ozlabs.org Subject: suspecting ibm_newemac driver problem. MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Hello All, I am using ppc460ex based custom board. using linux 2.6.30.2 kernel on this board it has ibm_newemac driver in it. I am using this board as a iSCSI target which has RAID system behind it. || || || || n/w driver (ibm_newemac) || n/w layer || iSCSI Target || RAID || || || The problem i am facing is when i start iometer based i/o. I am doing i/o with following specifications. Workload type : All in one. no of outstanding i/o : 32. no of worker threads : 8. With this kind of workload n/w stucks in between. and board becomes unresponsive. If i try to ping to the board then ping fails with 100% packet loss. While debugging the issue i found out that sock->sk_state_change callback is called from the TCP layer and state of the socket is not TCP_ESTABLISHED in the iSCSI target driver. So i am assuming that this is a problem related to n/w driver. Did anyone faced similar kind of issue before? Please point me in right direction. Thanks and Regards, Harshal Shete. -- View this message in context: http://old.nabble.com/suspecting-ibm_newemac-driver-problem.-tp32788715p32788715.html Sent from the linuxppc-dev mailing list archive at Nabble.com.