ble which will track
access to specific memory access? I would like to dump stack every
time bv_page is accessed or modified
Thanks and regards,
Pritam Bankar
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happen in interrupt
context until I get open file descriptor in user land?
If not when does context change?
Thanks and regards,
Pritam Bankar
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> But all physical memory/frames are eventually controlled by kernel , then
>> how can there ever exist a frame which doesn't have mapping with kernel or
>> kernel virtual address ?
>>
>>
>>
>>
>>> Regards,
>>> MH
>>>
>>>
>
remaps the frame to user space.
> The frame does not have to have a valid kernel virtual address.
>
>
But all physical memory/frames are eventually controlled by kernel , then
how can there ever exist a frame which doesn't have mapping with kernel or
kernel virtual address ?
>
regards,
Pritam Bankar
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On Wed, Dec 25, 2013 at 9:07 PM, wrote:
> On Wed, 25 Dec 2013 14:45:01 +0530, Pritam Bankar said:
>
> > This is what I don't understand what does it mean by
> >
> > containing large holes?
> >
> > physical discontiguous memory?
> >
> > Is i
Hi,
I just started reading Memory Managment chapter from book Professional
Linux Kernel Architecture. At very start of chapter I came across terms
FLATMEM, DISCONTIGMEM and SPARSEMEM. Out of these DISCONTIGMEM and
SPARSEMEM are available to NUMA systens only. Book also says UMA systems
can also ch
e_fault exception?
>
>
> thanks!
>
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Thanks and regards,
Pritam Bankar
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Hi Shraddha,
Please find my comments below,
On Wed, Dec 26, 2012 at 1:35 PM, Shraddha Kamat wrote:
> Hi List,
>
> I do the following on Fedora kernel src rpm :
> (1) rpm -ivh kernel-xxx.rpm
> (2) Go to ~/rpmbuild/SPECS dir
> (2) rpmbuild -bp kernel.specs --nodeps
>
> then in the ~/rpmbuild/BUILD
Hi guys,
I want to confirm my understanding regarding modpost and Module.Symvers files.
>From my understanding
a. modpost is used to add versioning information to module.
b. modpost is also used to create mod.c and
Module.Symvers files per module
c
use less
> bits are required to manage the effective address space than are
> required
> to address the complete virtual address space. The virtual address
> space will contain holes that are not addressable in principle in such
> cases.
>
> hopes this gives high level overview
>
>
On Fri, Nov 2, 2012 at 4:26 PM, Mulyadi Santosa
wrote:
> Hi :)
>
> On Fri, Nov 2, 2012 at 5:46 PM, Pritam Bankar
> wrote:
>> But I have some questions,
>>
>> 1. How is memory split up on 64-bit architecture
>
> in this URL:
> http://unix.stackexchange.c
do that user or kernel?
Thanks,
Pritam Bankar
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On Mon, Sep 24, 2012 at 9:41 PM, Ramesh.P wrote:
> Hi,
>
> Please see my comments inline.
>
> On Fri, Sep 21, 2012 at 2:39 PM, Pritam Bankar
> wrote:
>> Hi Ramesh thanks for great pdf. From whatever I understood after
>> reading I fired command modinfo o
gic.o as part of build process. Please refer
> http://lwn.net/images/pdf/LDD3/ch02.pdf, Version dependency section
> for more details.
>
> Thanks,
> Ramesh
>
> On Tue, Sep 18, 2012 at 7:10 AM, Pritam Bankar
> wrote:
>> On Tue, Sep 18, 2012 at 7:27 PM, Pritam Bankar
>>
On Tue, Sep 18, 2012 at 7:27 PM, Pritam Bankar
wrote:
> Any idea what causes __versions section to get added in *.ko module. A
> simple hello.ko on ubuntu 12.04 i386 machine gets loaded successfully.
> Other module just doesn't get loaded giving error " Invalid module "
ion was missing from second module and that can be the reason its
not getting loaded. How can I add this section to other .ko ? What
causes __versions to get added in ko ?
Thanks,
Pritam Bankar
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How to know default flags used in specific gcc version ? I am looking
for difference between 3.4.3 and 4.1.1 These two have some difference
regarding -nosse option but how can I find this ?
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)
Thanks
Pritam Bankar
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Hi,
long long x;
long long int y;
Anybody please tell me, is there any difference between declaring
variable with long long and long long int ?
Does both declaration mean same thing ?
Thanks,
Pritam Bankar
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Hi,
I have one structure called foo. Address of object of foo(say objfoo) is
passed to ioctl call
status = ioctl(fd, arg, &objfoo);
But during manipulation I am not getting ioctl error 5 (input/output error).
I am more confused about error in dmesg which is
*foo: no-op *
What does no-op indic
HAS SPECIAL MEANING ???
Thanks
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inux-headers-$(uname -r)
>
> You can also use
>
> #apt-cache search linux | grep headers to see what all is available.
>
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e 127754 (Address of extent or data block)?
> what is 8705 &1 ?
>
>
> --
> Regards,
> Ganesh Patil.
>
>
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Jim ,
Is it a boot time process ? Can I switch to smp mode in running kernel?
On Mon, Apr 2, 2012 at 2:27 PM, Pritam Bankar wrote:
> Thanks Andrew , Jim
>
>
> On Tue, Mar 20, 2012 at 8:40 PM, Andrew Case wrote:
>
>> The feature is called SMP alternatives. See if this articl
Thanks Andrew , Jim
On Tue, Mar 20, 2012 at 8:40 PM, Andrew Case wrote:
> The feature is called SMP alternatives. See if this articles helps
> you: http://lwn.net/Articles/164121/
>
> On Tue, Mar 20, 2012 at 8:54 AM, Pritam Bankar
> wrote:
> > Hi,
> > Cal anyo
Hi,
Cal anyone help me in understanding alternative.c file from Linux source
code.
I want to learn function apply_alternative. AFAIK this code applies better
replacement to instruction set used by processor.
But I am not sure what exactly it is doing ?
--
Pritam Bankar
> Mulyadi Santosa
> Freelance Linux trainer and consultant
>
> blog: the-hydra.blogspot.com
> training: mulyaditraining.blogspot.com
>
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Hi,
http://lists.openfabrics.org/pipermail/general/2008-July/052458.html
This might help you.
From: kernelnewbies-boun...@kernelnewbies.org
[mailto:kernelnewbies-boun...@kernelnewbies.org] On Behalf Of rohan puri
Sent: 28 November 2011 12:36
To: Vimal; kernelnewbies
Subject:
Hi,
To cut down drivers you should configure your .config file in your source.
You will have to recompile kernel.
For pata you have ,
CONFIG_PATA_AMD=y
CONFIG_PATA_OLDPIIX=y
CONFIG_PATA_SCH=y
This can be set to "n" instead of "y" to remover support of pata. This can
be done to other modules also
o try using make oldconfig instead of make defconfig.
From: Pritam Bankar [mailto:pritambankar1...@gmail.com]
Sent: 08 November 2011 00:35
To: kernelnewbies@kernelnewbies.org
Subject: Re: building linux kernel 3.0.4
On 07-11-2011 23:15, ashish anand wrote:
Hi ,
I am using vmware on wi
On 07-11-2011 23:15, ashish anand wrote:
Hi ,
I am using vmware on windows 7 and try to built kernel version 3.0.4 .
I am following this procedure
make defconfig
make
make modules
make modules_install
make install
Every step succeds except make install
Its throwing me following message
*sh /hom
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> >
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