I am able to use crash to debug a crash dump generated when I initiate the crash using the sysrq-trigger in the /proc directory.
But when I try to use crash to debug a kernel vmcore generated due to the insertion of my module, I get the error below.
Please let me know if I am doing anything wrong or if you think that the dump is corrupted. I use kdump for dump collection.
I am using a 2.6.27.4-2-default kernel.
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/var/crash/2008-12-01-18:40 # crash System.map-default vmlinux vmcore
crash 4.0-7.4
Copyright (C) 2002, 2003, 2004, 2005, 2006, 2007, 2008 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 "x86_64-unknown-linux-gnu"...
please wait... (gathering module symbol data) buf_1K_used: 299
buf_2K_used: 1
buf_4K_used: 155
buf_8K_used: 1
buf_32K_used: 2
buf_1K_ovf: 0
buf_2K_ovf: 0
buf_4K_ovf: 0
buf_8K_ovf: 0
buf_32K_ovf: 0
buf_1K_maxuse: 2 of 10
buf_2K_maxuse: 1 of 10
buf_4K_maxuse: 1 of 5
buf_8K_maxuse: 1 of 5
buf_32K_maxuse: 1 of 1
buf_inuse[5]: [0][0][0][0][1]
smallest: 16
largest: 21474854400
embedded: 2
max_embedded: 2
mallocs: 0
frees: 0
reqs/total: 459/21475603516.0
average size: 46787807.2
crash: cannot allocate any more memory!
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Thanks in advance,
Dheeraj
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