yes, it works well.


title Xen -- SUSE Linux Enterprise Server 11 SP2 - 3.0.38-0.5
root (hd0,0)
kernel /boot/xen.gz vga=mode-0x317 crashkernel=128M@16M
module /boot/vmlinuz-3.0.38-0.5-xen root=/dev/disk/by-id/ata-WDC_WD3200BEVS-08VAT2_WD-WXD0AA9V4924-part1 resume=/dev/disk/by-id/ata-WDC_WD3200BEVS-08VAT2_WD-WXD0AA9V4924-part5 showopts vga=0x317
module /boot/initrd-3.0.38-0.5-xen


 HjCloud:/mnt/winimg/crash/#  echo c >/proc/sysrq-trigger


HjCloud:/mnt/winimg/crash/2012-09-30-19:03 # ls
README.txt System.map-3.0.13-0.27-xen vmcore vmlinux-3.0.13-0.27-xen.gz





HjCloud:/mnt/winimg/crash/2012-09-30-19:03 # crash -f /boot/xen-syms-4.1.3_02-0.5.1 /boot/xen-syms-dbg-4.1.3_02-0.5.1 vmcore

crash 5.1.9
Copyright (C) 2002-2011 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, 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.

crash: /boot/xen-syms-dbg-4.1.3_02-0.5.1: no .gnu_debuglink section
GNU gdb (GDB) 7.0
Copyright (C) 2009 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 "x86_64-unknown-linux-gnu"...

WARNING: crashing_cpu not found.
crash: invalid kernel virtual address: 523b4fd7c071bf18 type: "fill_pcpu_struct"
WARNING: cannot fill pcpu_struct.

crash: cannot read cpu_info.





Do you think  my method is right?