Looking through the changelog, I saw that the 'tss_struct ist array' problem on 8-CPU systems had been addressed previously. However, I'm running into this issue on an AMD server with crash 4.0-4.1 and RHEL4 Update 5 (2.6.9-55.Elsmp). The output from the crash invocation is the following: +++ [root@well-rhel4564-ps3 dump]# /fpj/crash System_map.2.6.9-55.ELsmp vmlinux.debug.2.6.9-55.ELsmp ap3.1178895173.dmp crash 4.0-4.1 Copyright (C) 2002, 2003, 2004, 2005, 2006, 2007 Red Hat, Inc. Copyright (C) 2004, 2005, 2006 IBM Corporation Copyright (C) 1999-2006 Hewlett-Packard Co Copyright (C) 2005, 2006 Fujitsu Limited Copyright (C) 2006, 2007 VA Linux Systems Japan K.K. Copyright (C) 2005 NEC Corporation Copyright (C) 1999, 2002 Silicon Graphics, Inc. Copyright (C) 1999, 2000, 2001, 2002 Mission Critical Linux, Inc. This program is free software, covered by the GNU General Public License, and you are welcome to change it and/or distribute copies of it under certain conditions. Enter "help copying" to see the conditions. This program has absolutely no warranty. Enter "help warranty" for details. GNU gdb 6.1 Copyright 2004 Free Software Foundation, Inc. GDB is free software, covered by the GNU General Public License, and you are welcome to change it and/or distribute copies of it under certain conditions. Type "show copying" to see the conditions. There is absolutely no warranty for GDB. Type "show warranty" for details. This GDB was configured as "x86_64-unknown-linux-gnu"... crash: seek error: kernel virtual address: 10408119e84 type: "tss_struct ist array" --- The server is a 4 dual-core AMD (2.8GHz) with 64GB. Any insights into how best to troubleshoot this are much appreciated. Thanks, Frank Jansen "The difference between genius and stupidity is that genius has its limits." Albert Einstein -- Crash-utility mailing list Crash-utility@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/crash-utility