I wasn't aware of the new driver, crash. I have now built CONFIG_CRASH into my kernel. crash still has trouble reading though. kris [root@f14 linux-2.6.9-22.0.2.EL]# crash -d7 ./vmlinux crash 4.0-2 Copyright (C) 2002, 2003, 2004, 2005 Red Hat, Inc. Copyright (C) 2004, 2005 IBM Corporation Copyright (C) 1999-2005 Hewlett-Packard Co 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. get_live_memory_source: /dev/mem /proc/version: Linux version 2.6.9-prep.qp2.2.5.11.3qsnet (root@f16) (gcc version 3.2.3 20030502 (Red Hat Linux 3.2.3-20)) #10 SMP Fri Feb 24 15:22:41 EST 2006 ./vmlinux: Linux version 2.6.9-prep.qp2.2.5.11.3qsnet (root@f16) (gcc version 3.2.3 20030502 (Red Hat Linux 3.2.3-20)) #10 SMP Fri Feb 24 15:22:41 EST 2006 <readmem: c0153373, KVADDR, "x86_omit_frame_pointer", 4, (ROE), bff651e0> /dev/mem: Operation not permitted crash: read(/dev/mem, 153373, 0): 4 (ffffffff) crash: read error: kernel virtual address: c0153373 type: "x86_omit_frame_pointer" <readmem: c0439d10, KVADDR, "xtime", 8, (FOE), 8349634> /dev/mem: Operation not permitted crash: read(/dev/mem, 439d10, 0): 8 (ffffffff) crash: read error: kernel virtual address: c0439d10 type: "xtime" [root@f14 linux-2.6.9-22.0.2.EL]# ls -l /dev/crash crw------- 1 root root 10, 63 Feb 24 10:35 /dev/crash