lcx2005
08-10-2006, 02:10 AM
Hi guys,
Anyone can help me in setting the VPAGESIZE value and also explain it.What is the safe value for Physical ram 256mb and 40 Gb hard disk?.Suppose i have to increase the VPAGESIZE value.
filesize_to_disassemble:24576 bytes or 24KB
Physical RAM of my PC:256MB
Problem:
When i try to disassemble the above file with default configuration and I got this dialog box.
####################################
#
# Create a segment (00401000-0AFCEEFF,sel 00000001)
# can't allocate varray chunk for the segment.
#
##############################
### from ida.cfg ###
// Memory configuration parameters
// -------------------------------
// NOTES:
//
// 1. DATABASE_MEMORY determines how much memory will be allocated
// for names, strings, xrefs, functions, etc. If it is == 0 then
// IDA uses the following alrogithm:
//
// DATABASE_MEMORY = new_file
// ? input_file_size * 4
// : old_btree_size/2
//
// 2. page sizes (VPAGESIZE and NPAGESIZE) must be powers of 2.
//
// 3. if VPAGES == 0 then 32bit IDA reserves memory by the following
// alrogithm:
// VMEM = new_file
// ? input_file_size*4
// : allocated_addressing_space;
// VPAGES = VMEM / VPAGESIZE
// 4. Here is the total amount of memory allocated when IDA starts:
// TOTAL = DATABASE_MEMORY + VPAGESIZE*VPAGES + NPAGESIZE*NPAGES
//
I added (n) for a line number.
(1) DATABASE_MEMORY = 0 // Database buffers size in bytes.
(2) VPAGESIZE = 8192 // Virtual memory page size
(3) // (effective for new bases only)
(4) // 8192 => 128MB addressing space is the limit
(5) VPAGES = 0 // Size of virtual memory window (in pages)
(6) NPAGESIZE = 8192 // Name pointers page size
(7) // (effective for new bases only)
(8) NPAGES = 32 // how big will be the memory buffer?
(9) // (each name uses 4 bytes)
(10) // The default settings allow to keep
(11) // in memory 2^16 names. The remaining
(12) // names will be swapped to the disk.
//
// IDC engine parameters
// ---------------------
(13) IDC_STACKSIZE = 8192 // Total number of local variables
(14) IDC_CALLDEPTH = 128 // Maximal function call depth
@ Addition @@ Greets to RCEs @
Guys check this Editor,If this is an Elephant then Micro$oft notepad is an ant.
Especially for Programmer,coder,script writer etc...
Oh! i love freeware software which has more power than commercial $oftware and
why not using the more powerful weapon.
Notepad++ v3.4 (Free Software)
http://notepad-plus.sourceforge.net/
Anyone can help me in setting the VPAGESIZE value and also explain it.What is the safe value for Physical ram 256mb and 40 Gb hard disk?.Suppose i have to increase the VPAGESIZE value.
filesize_to_disassemble:24576 bytes or 24KB
Physical RAM of my PC:256MB
Problem:
When i try to disassemble the above file with default configuration and I got this dialog box.
####################################
#
# Create a segment (00401000-0AFCEEFF,sel 00000001)
# can't allocate varray chunk for the segment.
#
##############################
### from ida.cfg ###
// Memory configuration parameters
// -------------------------------
// NOTES:
//
// 1. DATABASE_MEMORY determines how much memory will be allocated
// for names, strings, xrefs, functions, etc. If it is == 0 then
// IDA uses the following alrogithm:
//
// DATABASE_MEMORY = new_file
// ? input_file_size * 4
// : old_btree_size/2
//
// 2. page sizes (VPAGESIZE and NPAGESIZE) must be powers of 2.
//
// 3. if VPAGES == 0 then 32bit IDA reserves memory by the following
// alrogithm:
// VMEM = new_file
// ? input_file_size*4
// : allocated_addressing_space;
// VPAGES = VMEM / VPAGESIZE
// 4. Here is the total amount of memory allocated when IDA starts:
// TOTAL = DATABASE_MEMORY + VPAGESIZE*VPAGES + NPAGESIZE*NPAGES
//
I added (n) for a line number.
(1) DATABASE_MEMORY = 0 // Database buffers size in bytes.
(2) VPAGESIZE = 8192 // Virtual memory page size
(3) // (effective for new bases only)
(4) // 8192 => 128MB addressing space is the limit
(5) VPAGES = 0 // Size of virtual memory window (in pages)
(6) NPAGESIZE = 8192 // Name pointers page size
(7) // (effective for new bases only)
(8) NPAGES = 32 // how big will be the memory buffer?
(9) // (each name uses 4 bytes)
(10) // The default settings allow to keep
(11) // in memory 2^16 names. The remaining
(12) // names will be swapped to the disk.
//
// IDC engine parameters
// ---------------------
(13) IDC_STACKSIZE = 8192 // Total number of local variables
(14) IDC_CALLDEPTH = 128 // Maximal function call depth
@ Addition @@ Greets to RCEs @ Guys check this Editor,If this is an Elephant then Micro$oft notepad is an ant.
Especially for Programmer,coder,script writer etc...
Oh! i love freeware software which has more power than commercial $oftware and
why not using the more powerful weapon.
Notepad++ v3.4 (Free Software)
http://notepad-plus.sourceforge.net/