******************************************************************************* * * PRIMARY DISCLAIMER: * * It is not recommended that you install this fix unless specifically * instructed to do so by a qualified IBM Technical Support representative. * * Please call your appropriate support location for more information. * For instance, in the United States, you would call 1-800-CALL-AIX. * ******************************************************************************* * * * * VISIT OUR PAGES ON THE INTERNET * _______________________________ * * IBM Communications Server Support * http://www.ibm.com/software/network/commserver/support * * * +--------------------------------------------------------------------------+ * * DATE: 12/10/2002 * * DESCRIPTION: * ____________ * * README FILE FOR * * IBM Communications Server for AIX temporary fix ("efix") * * (Installs only on PTF level 6.1.0.1) * APAR: IY37689 * * This package contains APAR fixes to the product above. This * package can be distributed to any one who has a license for * this product. * *+----------------------------------------------------------------------------+ * * * PREREQUISITES : * _______________ * * IBM Communications Server for AIX version 6.1 * * * PTF: This efix is designed for the fileset sna.rte at the specific * level of 6.1.0.1. It is not designed for any other level of the product * and may cause irreparable damage if inappropriately applied. If you are * in need of this PTF supplement to the product before proceeding with * the download and application of this efix please go to the above support * site and refer to the Code Updates section for details on retrieving the * minimum level of maintenance for this efix. You may also choose instead * to call support directly at 1-800-CALL AIX for more information. * * * No other prerequisites are required for the installation of this efix. * *+----------------------------------------------------------------------------+ * * * PROBLEM FIXED: IY37689 * Module Name: sna_v5router * APAR description: * CS/AIX sna.err log reports ASSERTs followed by critical memory * congestion messages. SNA must be cycled to recover. * * ERROR Description: * SNA hangs after host outage. Asserts are reported in the sna.err * log along with errors indicating a Critical Memory Congestion. * SNA must be cycled to recover. * Buffer shortage error logs, query_buffer_availability shows values * buf_res_use_count and buf_resv_count near four billion. * Some assert info in sna.err: * File name = ../../croot/cnbase/nbabuf.c * line number = 564 * Expression = False * Stack: * nba_free_buffer+8C(0,10A6,10001,3010301) * nbm_destroy_buf_pool+138(300016F,32F755E4,0,0) * nhs_destroy+60(32F755E4,600006,0,0) * nba_dispatch_destroy+DC(36Af6390,32F755E4,2F0226F8,5808988) * nba_dispatch_process+E8(36AF6390,32F755E4,2F022758,32FAC87C) * nba_schedule_process+158(36AF6390,32FACE30,100001F,20B020B) * nba_destroy+150(30000D4,32FACE30,AF16C,32F4FDE0) * nsm_destroy_hs+50(32F675B4,32FACE30,32FB13BC,10000) * nsm_free_lu_lu_session+30 * * CAUSE: * Cause has not yet been determined. This efix is intended to protect * the buffer counters from going negative, which will prevent the * problem from been seen. Further analysis is still in progress. * Also, this efix adds a new ASSERT at the first point that one of * these variables goes negative. * * * Also included in this updated module are fixes for the following APARs: * * iy33597 sna_v5router * iy33760 sna_v5router * iy35887 sna_v5router * iy37689 sna_v5router * *+----------------------------------------------------------------------------+ * * INSTALLATION INSTRUCTIONS: * __________________________ * * iy37689.tar.Z ("this efix" in the steps below) is a compressed tar archive * file containing the updated modules and this readme. * * * To install this efix: * _____________________________ * * ** Downloading the file: * * 1) Be SURE to download this efix in BINARY format. * * 2) Check the output of sum against the updated module after * uncompressing and untarring this efix. You should see: * * 20294 4289 sna_v5router * * 3) Make sure that you have backed up your system recently. * * 4) Make sure that you have copies of your configuration files saved * (the /etc/sna directory contents). * * 5) Stop SNA and proceed to the next step (A or B) * * sna stop * * (IMPORTANT) - Be sure that SNA is stopped. Please issue: * * ps -ef | grep sna* * * If a sna* process exists, use the kill command on the process. * It is also recommended that, if possible you take down any * applications that may try to access CS/AIX. * * 6) Backup your previous versions of the module(s) listed in this readme * by renaming them. * * cp /usr/lib/sna/drivers/sna_v5router /usr/lib/sna/drivers/sna_v5router.preIY37689 * * 7) Copy this efix's updated module into its/their place(s). * * cp sna_v5router /usr/lib/sna/drivers/sna_v5router * * 8) Shutdown and reboot your system. * * shutdown -Fr * * 9) Restart Communications Server for AIX * * sna start * snaadmin init_node (and so on)... * * +--------------------------------------------------------------------------+ * * * CONTACT FOR Support: * ____________________ * * If you have any questions, please call the IBM AIX SUPPORT CENTER * for your Country. For example in the USA call: 1-800-CALL-AIX * * * IBM COPYRIGHT INFORMATION: * __________________________ * * IBM Communications Server for AIX version 6.1 * * * (c)Copyright International Business Machines Corporation 1998, 1999, 2002. * All rights reserved. Note to U.S. Government Users - Documentation * related to restricted rights - Use, duplication or disclosure is * subject to restrictions set forth in GSA ADP Schedule Contract * with IBM Corp. * * * * LIMIT OF LIABILITY: * ___________________ * * License to the contained APAR fixes is conditioned upon the recipient * holding a license to the prerequisite product. The license terms * and conditions of the APAR fixes are the same as those for the * prerequisite product. Please see the product license for specifics. * *******************************************************************************