Thanks Jeff. Solved my problem.
Below is my further investigation to support Jeff's idea.
The size of a Page Table (not a single entry) at any level is exactly 1
page.
2 level: 10+10+12. linear address will assign 10 bits for Page Directory
and 10 bits for Page Table, and thus each Page Table
Hi all,
*Question: *
When we use 2 level paging(Directory+Table+Offset), does the page table
entries have to be put exactly on the beginning of a page frame?
*Description: *
The format of Page Directory and Page Table are the same. And they all
contain 20 bits as a pointer to the next level entri
Rajat Jain writes:
> [...] I have a memory location (One of the fields in a kernel data
> structure) and I want to track down the code that changes the value
> of that particular location. Some thing like a "watchpoint".
See the register_wide_hw_breakpoint API. You could write a small
module t
Hello everyone. I am thinking of creating a Mailing List for our
community but for unofficial topics. I think it would help to know each
other and it would expand our conversation into different areas.
Politics and Religion are prohibited topics. I was thinking the areas of
discussion to be more o
On Thu, 07 Nov 2013 23:23:18 -0800, kiran kumar said:
> Can you define that location as read only(i.e constant)?. This is only for
> debug prupose, later you can remove.
Note that this requires 2 things:
1) A kernel built with CONFIG_DEBUG_RODATA=y
2) The structure needs to have a compile-time i
On Fri, Nov 8, 2013 at 1:53 PM, anish singh wrote:
> On Nov 6, 2013 10:38 PM, "Mandeep Sandhu" wrote:
>>
>> On Thu, Nov 7, 2013 at 11:04 AM, sdptr...@gmail.com
>> wrote:
>> > While going through kernel source , I came across this ALIGN macro
>> >
>> > #define ALIGN(x, a) __ALIGN_KER
I think sd_prep_fn is a generic function for any SCSI device while
scsi_prep_fn specifically SCSI Disks or LUN's, so if you have a filesystem
created on top of SCSI Disk scsi_prep_fn function will be called. In case
you have any other SCSI device then you will have sd_prep_fn will be called.
The c
On Nov 6, 2013 10:38 PM, "Mandeep Sandhu" wrote:
>
> On Thu, Nov 7, 2013 at 11:04 AM, sdptr...@gmail.com
> wrote:
> > While going through kernel source , I came across this ALIGN macro
> >
> > #define ALIGN(x, a) __ALIGN_KERNEL((x), (a))
> >
> > and
> >
> > #define __ALIGN_KERNEL(x,
