Hi, I get following crash warnings on x86-64 machine. Wondering why ? And also, its not showing stacks correctly. Thanks, Badari # ./crash /var/log/dump/2006-04-24-08:02/vmcore /usr/src/linux/vmlinux crash 4.0-2.23 Copyright (C) 2002, 2003, 2004, 2005, 2006 Red Hat, Inc. Copyright (C) 2004, 2005, 2006 IBM Corporation Copyright (C) 1999-2006 Hewlett-Packard Co Copyright (C) 2005 Fujitsu Limited 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"... WARNING: possibly bogus exception frame WARNING: possibly bogus exception frame WARNING: possibly bogus exception frame WARNING: possibly bogus exception frame WARNING: possibly bogus exception frame WARNING: possibly bogus exception frame WARNING: possibly bogus exception frame WARNING: possibly bogus exception frame WARNING: possibly bogus exception frame WARNING: possibly bogus exception frame WARNING: possibly bogus exception frame WARNING: possibly bogus exception frame WARNING: possibly bogus exception frame WARNING: possibly bogus exception frame WARNING: possibly bogus exception frame WARNING: possibly bogus exception frame WARNING: possibly bogus exception frame WARNING: possibly bogus exception frame WARNING: possibly bogus exception frame WARNING: possibly bogus exception frame WARNING: possibly bogus exception frame WARNING: possibly bogus exception frame WARNING: possibly bogus exception frame WARNING: possibly bogus exception frame WARNING: possibly bogus exception frame WARNING: possibly bogus exception frame KERNEL: /usr/src/linux/vmlinux DUMPFILE: /var/log/dump/2006-04-24-08:02/vmcore CPUS: 2 DATE: Mon Apr 24 08:02:03 2006 UPTIME: 00:06:31 LOAD AVERAGE: 0.00, 0.00, 0.00 TASKS: 63 NODENAME: elm3a242 RELEASE: 2.6.16-20-smp VERSION: #1 SMP Mon Apr 10 04:51:13 UTC 2006 MACHINE: x86_64 (3000 Mhz) MEMORY: 4.6 GB PANIC: "SysRq : Trigger a crashdump" PID: 0 COMMAND: "swapper" TASK: ffffffff80335340 (1 of 2) [THREAD_INFO: ffffffff8045c000] CPU: 0 STATE: TASK_RUNNING (ACTIVE) crash> bt PID: 0 TASK: ffffffff80335340 CPU: 0 COMMAND: "swapper" #0 [ffffffff8045dee8] schedule at ffffffff802cf6fa