[Crash-utility] Problem with NUMA Nodes

[sharyathi nagesh]

Hi
    I am seeing this problem with crash tool on a system with NUMA nodes.
crash exits with error message and no further analysis of dump is possible.
=====
Error message:

cassinilp1:~ # crash

crash 4.0-3.14
Copyright (C) 2002, 2003, 2004, 2005, 2006  Red Hat, Inc.
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Copyright (C) 1999, 2002  Silicon Graphics, Inc.
Copyright (C) 1999, 2000, 2001, 2002  Mission Critical Linux, Inc.
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This program has absolutely no warranty.  Enter "help warranty" for details.

GNU gdb 6.1
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crash: numnodes out of sync with pgdat_list?

=====
System configuration is given as 

Node 0 Memory:
Node 1 Memory:
Node 2 Memory:
Node 3 Memory:
Node 4 Memory: 0x0-0x180000000

Node 0 CPUs: 0
Node 1 CPUs:
Node 2 CPUs:
Node 3 CPUs:
Node 4 CPUs: 1
=====
The problem is noticed because of mismatch:

 if (n != vt->numnodes)
                error(FATAL, "numnodes out of sync with pgdat_list?\n");
in memory.c/dump_memory_nodes() function

	The problem is because of the mismatch between node_online_map and the number of nodes observed by traversing through pgdat_list. 
node_online_map bit is set differently in kernel version 2.6.16 and 2.6.19. 
	In earlier version all the bits from the first bit to 
nth bit, where n is last Node to which memory is assigned is set to '1'.
	But in later version node is considered online if either memory or cpu is allocated (or both).

So I need your suggestion on how to go and fix the problem
A few ideas I had were
1) If KERNEL_VERSION <= 2.6.16 set increment vt->numnodes only if bits of node_online_map and cpu_online_map are set.
   if KERNEL_VERSIOn > 2.6.16 use only node_online_map
	(This will partly solve the problem)
2) or as in node_table_init(). Raise the error only when CRASHDEBUG(2) is set else update vt->numnodes with 'n'

Please let me know of your opinion
Regards
Sharyathi Nagesh