Hi ,

 

I have tried to use crash 4.1.0 in ubuntu 10.04 kernel (2.6.32.25), when I don't specify the memory dump file ,it works perfectly as it reads the memory from crash driver (crash model),  it shows below:

 

root@o:/# crash /boot/System.map-2.6.32-25-generic /home/amer/ubuntu-lucid/debian/build/build-generic/vmlinux

crash 4.1.0
Copyright (C) 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009  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.
 
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 "i686-pc-linux-gnu"...

SYSTEM MAP: /boot/System.map-2.6.32-25-generic                      
DEBUG KERNEL: /home/amer/ubuntu-lucid/debian/build/build-generic/vmlinux (2.6.32-25-generic)
 DUMPFILE: /dev/crash
 CPUS: 1
 DATE: Wed Feb 23 11:40:40 2011
 UPTIME: 09:17:34
LOAD AVERAGE: 0.89, 0.74, 0.78
TASKS: 258
 NODENAME: o
 RELEASE: 2.6.32-25-generic
 VERSION: #45-Ubuntu SMP Sat Oct 16 19:48:22 UTC 2010
 MACHINE: i686  (1339 Mhz)
 MEMORY: 511.5 MB
 PID: 2703
 COMMAND: "crash"
 TASK: cf27bfc0  [THREAD_INFO: dfbc0000]
 CPU: 0
  STATE: TASK_RUNNING (ACTIVE)

 

 

root@o:/# crash /boot/System.map-2.6.32-25-generic   /home/amer/ubuntu-lucid/debian/build/build-generic/vmlinux    home/amer/image.dd
crash 4.1.0
Copyright (C) 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009  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: home/amer/image.dd: not a supported file format

Usage:
  crash [-h [opt]][-v][-s][-i file][-d num] [-S] [mapfile] [namelist] [dumpfile]

Enter "crash -h" for details.

 

could you please give some advice to resolve this problem.

 

Thanks,

amer