Hey David, I just upgraded a dev box to v3.5-rc1 and now crash doesn't work. Have you seen this before? crash 6.0.7 Copyright (C) 2002-2012 Red Hat, Inc. Copyright (C) 2004, 2005, 2006, 2010 IBM Corporation Copyright (C) 1999-2006 Hewlett-Packard Co Copyright (C) 2005, 2006, 2011, 2012 Fujitsu Limited Copyright (C) 2006, 2007 VA Linux Systems Japan K.K. Copyright (C) 2005, 2011 NEC Corporation Copyright (C) 1999, 2002, 2007 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 (GDB) 7.3.1 Copyright (C) 2011 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html> This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law. Type "show copying" and "show warranty" for details. This GDB was configured as "i686-pc-linux-gnu"... SYSTEM MAP: /boot/System.map-3.5.0-rc1-1.2-desktop DEBUG KERNEL: /root/xfs/vmlinux DUMPFILE: vmcore CPUS: 4 DATE: Tue Jun 5 15:13:35 2012 UPTIME: 01:58:35 LOAD AVERAGE: 2.06, 1.61, 1.77 TASKS: 90 NODENAME: nfs7 RELEASE: 3.5.0-rc1-1.2-desktop VERSION: #20 SMP PREEMPT Tue Jun 5 12:56:22 CDT 2012 MACHINE: i686 (2399 Mhz) MEMORY: 6 GB PANIC: crash: cannot determine length of symbol: log_end I had been using crash 6.0.6 on this machine on a regular basis until upgrading the kernel. I expect if I go back to the older kernel it will work again. Any suggestions? More info I can provide? Thanks, Ben