Thanks for your kind replies.
Prabhu
On Fri, Oct 1, 2010 at 11:18 AM, Dave Hylands dhyla...@gmail.com wrote:
Hi Prabhu,
On Thu, Sep 30, 2010 at 11:29 PM, Prabhu nath gprabhun...@gmail.com
wrote:
Dear All,
I am trying to experiment the following.
* I have a 1 GB of RAM and
page, I believe, you are refering to struct page.
kmap is a kernel function which takes in the parameter struct page pointer
and returns kernel virtual address.
On a typical x86 machine with 1GB RAM, kmap works like this.
If the struct page is associated with the physical page less than 896 MB,
Thank you Prabhu. Now I can proceed... :-)
On Thu, Sep 30, 2010 at 11:09 PM, Prabhu nath gprabhun...@gmail.com wrote:
page, I believe, you are refering to struct page.
kmap is a kernel function which takes in the parameter struct page pointer
and returns kernel virtual address.
On a typical
I resend this because I erroneously add it to the wrong thread.
Apologies for any inconvenience.
Hi all,
I'm trying to understand the use of alloc_bootmem_low. As my
understanding, it tries to allocate memory at boot time in the DMA zone
(under 16 MB on x86).
My question is, how can I be
Hello,
kmalloc() memory is reserved or not?
I tried to print the amount of reserved memory before and after allocating
10 MB of memory using kmalloc(). But both shows the same.
Here is the code,
#include linux/module.h
#include linux/moduleparam.h
#include linux/init.h
#include linux/kernel.h
Il 01/10/2010 9.51, Arun KS wrote:
Hello,
kmalloc() memory is reserved or not?
No, kmalloc memory is not reserved. The buddy allocator, which is
eventually used by kmalloc, use only pages NOT reserved and don't mark
the pages reserved when these are allocated.
In other words reserved bit is
On Fri, Oct 1, 2010 at 5:01 PM, luca ellero lro...@gmail.com wrote:
Il 01/10/2010 9.51, Arun KS wrote:
Hello,
kmalloc() memory is reserved or not?
No, kmalloc memory is not reserved. The buddy allocator, which is eventually
used by kmalloc, use only pages NOT reserved and don't mark the
Wouldn't a sparse matrix implementation of this be a better thing.
I don't have a link. But you'd initialize doing something like this:
uint8_t data[256];
free_list = 0;
for ( i = 1; i 256; i++ )
{
// Add Each byte to the free list.
data[i] = free_list;
free_list = i;
}
Hi,
What is the best way to debug a kernel oops message? I see some call
trace , and some memory addresses , but I am not able to figure out
the main reason for my module to fail.
Regards,
--
Tushar Dadlani
Manipal Institute of Technology
+919986292434
--
To unsubscribe from this list: send an
Hi Bond,
On Fri, Oct 1, 2010 at 3:36 AM, Bond jamesbond.2...@gmail.com wrote:
Wouldn't a sparse matrix implementation of this be a better thing.
There are many different algorithms, and you wanted to know how
indexes would work for tracking 1 byte allocations.
I guess it depends on how you
On Fri, Oct 1, 2010 at 4:22 PM, Tushar Dadlani tush...@gmail.com wrote:
Hi,
What is the best way to debug a kernel oops message? I see some call
trace , and some memory addresses , but I am not able to figure out
the main reason for my module to fail.
Following might be helpful :-
FYI,
There are many queries on the perfect development board on Kernelnewbies.
I felt this information might be helpful to many newbies and
experienced programmers alike!
PandaBoard Early Adopter Program has been launched!
PandaBoard is an open OMAP4 mobile development platform.
PEAP
This is one one best open source embedded boards.
thanks for sharing
On Fri, Oct 1, 2010 at 4:07 PM, K R I S K kernelb...@gmail.com wrote:
FYI,
There are many queries on the perfect development board on Kernelnewbies.
I felt this information might be helpful to many newbies and
I think is a great opportunity to develop a real project on embedded systems.
Thanks
Victor Rodriguez
On Fri, Oct 1, 2010 at 10:23 AM, Anuz Pratap Singh Tomar
chambilketha...@gmail.com wrote:
This is one one best open source embedded boards.
thanks for sharing
On Fri, Oct 1, 2010 at 4:07
Hi all,
Probably, I should ask my quesiton on some SPI dedicated mailing lists,
however, the borders of newbiness are hard to estimate.
As I can see, most SPI controller drivers currently attempting to control CS
(SS) line by themselves, usually enabling it just before spi_message
processing
On Fri, Oct 1, 2010 at 3:52 AM, Tushar Dadlani tush...@gmail.com wrote:
Hi,
What is the best way to debug a kernel oops message? I see some call
trace , and some memory addresses , but I am not able to figure out
the main reason for my module to fail.
Most useful data that I have found is the
Hi All,
I am developing segmentation for my kernel. In that process I
choose to divide whole memory in to fixed size segments. So a 4GB
memory can be divided in to 8192 segments. So I initialize segment
descriptors in to the GTD withs segments base address and limit. Here
base address are
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