Hi Amit,
On Wed, Aug 11, 2021, 3:03 PM Amit Kumar wrote:
>
> I have got a resource which is about 5.4 LTS kernel.
>
Can u share that resource here, even I trying to
Understand latest kernel.
Thanks,
Dara Srivathsa
___
> Kernelnewbies mailing list
>
On Fri, Jul 23, 2021, 9:47 PM Connor Kuehl wrote:
What about Linux Kernel Development by Robert Love, I have been that
reading book and comparing code in book with current kernel version
> ___
> Kernelnewbies mailing list
> Kernelnewbies@kernelnewbies
memory. Following link is good example
http://xillybus.com/tutorials/device-tree-zynq-1
Regards,
Sri.
On Thu, Dec 26, 2013 at 9:20 PM, Ashish Khetan wrote:
> I am using the defconfig from linux kernel tree and for CCSR in u-boot its
> F800 so the same i am using in device tree... so my qu
Thank you Srinivas, that was in my mind. I will do that and let you guys
know.
Regards,
Sri.
On Fri, Dec 27, 2013 at 7:34 PM, srinivas bakki wrote:
> Suggest you to eliminate the problem on the FPGA first. Hook on a scope
> onto the address lines of the FPGA and check whether you g
Haresh,
iotable_init() is specific to ARM arch. I am using powerpc, seems there is
no equivalent to that static function. Can you please give more input.
Thanks,
Sri.
On Thu, Dec 26, 2013 at 9:01 PM, Sri Ram Vemulpali
wrote:
> Thanks for reply Haresh. Will try and let u know.
>
&g
Thanks for reply Haresh. Will try and let u know.
Thanks,
Sri
On Thu, Dec 26, 2013 at 5:09 PM, haresh langaraman wrote:
> Hi ram,
>
> Can you try to map the address using io_table_init table of kernel
> initialization code.
>
> Thanks,
> Haresh.
> On 27 Dec 2013 0
T "value read from scratch_pad:%s\n", buff );
return 0;
Attached is the device tree of the board.
Can anyone please direct me or point where I am doing wrong. It seems I am
unable to access FPGA device memory. Thanks.
--
Regards,
Sri.
Why do not you use deconfig from linux kernel tree. Modify only base
address of CCSR (soc node) for child nodes of root in device tree.
arch/powerpc/boot/dts/mpc8641_hpcn.dts.
Sri
On Thu, Dec 26, 2013 at 3:48 AM, Ashish Khetan wrote:
> i tried to dig more inside mpic_alloc fails. the funct
mapping level.
NOTE: this is powerpc architecture.
On Wed, Dec 25, 2013 at 3:53 PM, Sri Ram Vemulpali
wrote:
> Hi All,
>
> I am working on bringing up the board sbc8641d, which is mostly similar in
> architecture with mpc8641 having powerpc chip. My board was customized to
> a
how we tell kernel to use ttyS0 over tty0.
Because in kernel config I selected was ttyS0 but it is using tty0.
Weird?
Thanks,
Sri.
On Wed, Aug 29, 2012 at 4:24 PM, Jonathan Neuschäfer
wrote:
> On Wed, Aug 29, 2012 at 11:50:00AM -0400, Sri Ram Vemulpali wrote:
>> Now the current problem
n my machine), it seems
sshd got started, but no prompt is displayed.
I think I should get console control. Any ideas.
Thanks in advance.
Regards,
Sri.
On Tue, Aug 28, 2012 at 11:20 PM, Mulyadi Santosa
wrote:
> Hi.
>
> On Wed, Aug 29, 2012 at 8:42 AM, Sri Ram Vemulpali
> wrote:
ome suggestions. Thanks in advance.
--
Regards,
Sri.
___
Kernelnewbies mailing list
Kernelnewbies@kernelnewbies.org
http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies
without
> making them orphan. Because when a child process is running at the
> time parent is exiting, that child process is assigned to init(1) as
> orphan process.
> Can this behavior be modified. Please let me know any suggestions and
> thoughts. Thanks in advance.
>
> --
&
.
This is the kind of feature I want it on tty fds. Please let me know
if anyone has any better idea. thanks.
--
Regards,
Sri.
___
Kernelnewbies mailing list
Kernelnewbies@kernelnewbies.org
http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies
you to understand the concept of vfs. Initially it
is confusing, but there is lot of material online. You url is a good
start.
All the best.
Sri.
On Wed, Apr 25, 2012 at 11:56 PM, Arun KS wrote:
> Thanks Sri Ram and Jonathan,
>
> On Wed, Apr 25, 2012 at 11:39 PM, Sri Ram Vemulpali
initializing stdout = fdopen on open("/dev/stdout", "")
descriptor will do your job.
or use dup to set index 1 to given fd in that process
--Sri.
On Mon, Apr 23, 2012 at 6:15 AM, Arun KS wrote:
> Hello Guys,
>
> We all know that when an application writes to stdout
outer header what do you mean by it. I
did not encounter this.
Thanks,
Sri.
On Thu, Apr 5, 2012 at 5:00 AM, SaNtosh kuLkarni
wrote:
> i had a similar problem where in i was using SKB_PUSH to add extra
> header i used this... structure called flowi which can be used to
> define
sh and pop handler. Check POSIX API.
Regards,
Sri.
On Wed, Feb 22, 2012 at 7:11 AM, Kristof Provost wrote:
> On 2012-02-22 11:53:12 (+), Anuz Pratap Singh Tomar
> wrote:
>> On Wed, Feb 22, 2012 at 9:48 AM, Kristof Provost wrote:
>>
>> > On 2012-02-22 11:01:52 (+02
nibble order.
When you talk byte order -- either little endian or big endian, we are
talking how is our data should be interpreted. Depending on order we
start reading data from left or right a byte at a time.
So, I am confused on your discussions. Please clarify.
Thanks,
Sri.
On Mon, Feb 20, 2012
serializes the mem
allocations. Does this happen to anyone disappearing the leak when
used valgrind.
Any thoughts and input that can help me solve this problem. Thanks to
all in advance.
--
Regards,
Sri.
___
Kernelnewbies mailing list
Kernelnewbies
]
[] _ZN10FromDevice8run_taskEP4Task+0xa5/0x120 [click]
[] _ZN12RouterThread6driverEv+0x177/0x290 [click]
[] _Z11click_schedPv+0x82/0x130 [click]
[] _Z11click_schedPv+0x0/0x130 [click]
[] kernel_thread_helper+0x7/0x10
--Sri
On Mon, Oct 24, 2011 at 10:08 AM, Greg KH wrote:
> On Sun, Oct 23, 2011 at
hat you can
confirm whether it is
rt linux.
But you must get information whether this is rt linux by "uname -a",
it shows rt in the display of patch.
Thanks,
Sri.
On Mon, Oct 24, 2011 at 12:38 AM, Greg KH wrote:
> On Sun, Oct 23, 2011 at 11:20:03PM -0400, Greg Freemyer wrote:
No, uname did not show anything.
Is there any way to get the kernel preemption mode, programatically?
Thanks,
--Sri
On Fri, Oct 21, 2011 at 6:41 PM, Daniel Baluta wrote:
> On Fri, Oct 21, 2011 at 2:28 PM, sri wrote:
> > Hi,
> >
> > Am using kernel 2.6.18-195(centos 5.5).
Hi,
Am using kernel 2.6.18-195(centos 5.5).
My kernel configs have CONFIG_PREEMPT_NONE=7 and "CONFIG_PREEMPT_VOLUNTERY
is not set".
How to check that preemption is really in place?
Is there any way to check my kernel is configured with what preemption
levels?
Thanks inadvanc
Thanks for the Inputs.
As there is not kernel crash, crash files are not create here to debug more.
Is there any way to force the kernel to create kernel crash files under
/var/crash.
This helps more If am not wrong.
Regards,
Sri
On Mon, Oct 10, 2011 at 9:20 PM, Mulyadi Santosa
wrote:
>
Hello Experts,
I was using click-1.6.0 on centos 5.3 kernel and recently* ported that to
centos5.5 kernel.*.
After porting, am getting the (*low stack detected by irq handler) and the
*following errors on the console frequently and causing the system
unresponsive totally.
Even after reboot, thi
gument you should able to increase the
time slice for low priority task
to decrease context switches. You can modify code and test to see what happens.
Sri
On Tue, Sep 27, 2011 at 11:44 AM, Mulyadi Santosa
wrote:
> Hi :)
>
> On Tue, Sep 27, 2011 at 20:06, Parmenides wrote:
>> In
thanks for the replies.
On Tue, Sep 20, 2011 at 11:42 PM, rohan puri wrote:
>
>
> On Wed, Sep 21, 2011 at 2:24 AM, Jeff Haran wrote:
>>
>> > -Original Message-
>> > From: kernelnewbies-boun...@kernelnewbies.org [mailto:kernelnewbies-
>> > boun.
IGBUS;
pageptr = pfn_to_page(pageframe);
get_page(pageptr);
if (type)
*type = VM_FAULT_MINOR;
return pageptr;
}
--
Regards,
Sri.
___
Kernelnewbies mailing list
Kernelnewbies@kernelnewbies.org
http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies
> Kernelnewbies mailing list
> Kernelnewbies@kernelnewbies.org
> http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies
>
--
Regards,
Sri.
___
Kernelnewbies mailing list
Kernelnewbies@kernelnewbies.org
http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies
Hi,
One of my devices runs with Centos 5.3 kernel (kernel-2.6.18-128.el5) and
that box stops responding occasionally.
When did hard reboot, it comes to normal execution. I would like to see
which device failure caused the box to stop rebooting.
I would like to see the POST process execution (if en
Hi,
Thanks for the reply.
So the BUG_ON means that it is known prior that a could raise in this
codelines.
Correct me if am wrong. In that case, there would a patch to fix this,
guessing.
--Sri
On Wed, May 25, 2011 at 11:15 PM, Mulyadi Santosa wrote:
> Hi...
>
> On Wed, May 25, 2011
Hi,
Am trying to learn network drivers in linux.
I need help in understanding the following error and what various
information we can get from that, so that I can identify the problem.
>From the backtrace, it is clear that the e1000_watchdog is throwing the
error.
This error I have seen on Centos
: The EEPROM Checksum Is Not Valid
e1000: probe of :01:00.0 failed with error -5
e1000: :01:00.1: e1000_probe: The EEPROM Checksum Is Not Valid
e1000: probe of :01:00.1 failed with error -5
Am trying to debug that.
Any help/pointers on why this occurs and how to resolve it?
--Sri
On
Thank you. Am trying to compile the whole kernel again with CONFIG_E1000=m.
On Mon, May 9, 2011 at 11:49 AM, Jeff Kirsher
wrote:
> On Sun, May 8, 2011 at 23:05, sri wrote:
> > the config had it as CONFIG_E1000=y
> > Does =y or =m make any difference?
> >
> > still
the config had it as CONFIG_E1000=y
Does =y or =m make any difference?
still not working.
On Mon, May 9, 2011 at 11:32 AM, Jeff Kirsher
wrote:
> On Sun, May 8, 2011 at 22:49, sri wrote:
> > Hi,
> >
> > As part of learning, I have added few debug statements to the code at
thing when I do in
drivers/net/e1000e, it is compiling and creating e1000e.ko file.
Any help on how to get e1000.ko?
--Sri
___
Kernelnewbies mailing list
Kernelnewbies@kernelnewbies.org
http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies
Thank you Daniel for the links.
Am using kernel-2.6.18-194.centosplus.el5 and dumpstack.c (under
lib/dumpstack.c) implentation said simply "This architecture does not
support dump_stack".
Thanks, Sri.
On Fri, Apr 1, 2011 at 3:33 PM, Daniel Baluta wrote:
> > Is there a way to fin
Hi,
Is there a way to find, in the kernel src tree, which routine/function is
calling another function OR kernel function invocation stack order?
This would be helpful for me to know the various steps/functionalities
involved during executing something in kernel space.
-Sri
***
On Wed, Mar 23, 2011 at 10:44 PM, Mulyadi Santosa wrote:
> On Wed, Mar 23, 2011 at 20:57, sri wrote:
> > Hi,
> >
> > Am trying to build SMP kernel.
> > Took kernel-2.6.18-194.src.rpm, extracted, rpmbuilded with SMP option.
> > Successfully compile the new ker
Hi,
Am trying to build SMP kernel.
Took kernel-2.6.18-194.src.rpm, extracted, rpmbuilded with SMP option.
Successfully compile the new kernel and when using that kernel to boot up,
following errors were shown up(highlighted in bold & red color):
My kernel config file has ACPI and PCI configs enabl
http://lxr.linux.no/linux+v2.6.37.2/kernel/irq/manage.c#L217
Check the above link.
--Sri
On Tue, Mar 1, 2011 at 3:55 AM, Jacky Lam wrote:
> Hi,
>
> It's long before when I want to enable/disable an interrupt, I call
> enable_irq()/disable_irq(). However, recently
.
--Sri.
On Thu, Feb 24, 2011 at 8:47 AM, Mandeep Sandhu
wrote:
>> Quite long questions you have below...but I'll try to summarize and
>> answer
>
> I did try to be as concise as possible! :)
>
>>
>> Btw, your problem description is greatI believe it
a
traditional implementation.
what is very minimal implementation of MMU for real time systems.
Thanks in advance.
--Sri.
On Tue, Feb 15, 2011 at 12:54 AM, Ankita Garg wrote:
> On Wed, Feb 09, 2011 at 06:45:42PM -0500, Sri Ram Vemulpali wrote:
>> Hi all,
>>
>> How do I m
Hi Santosa,
Can you please be more explicit. I do manage buffers internally in
my module.
Some cases if it full I will lose data. Can you please provide more
detailed explanation
on how to approach this. Thanks.
--Sri
On Wed, Feb 9, 2011 at 10:21 PM, Mulyadi Santosa
wrote:
> On Thu, Feb
module. In former case, it only
warns at time of
inserting the module for GPL license. Either case you should able to
access the symbol
--Sri.
On Thu, Feb 10, 2011 at 1:04 PM, Dave Hylands wrote:
> Hi Mulyadi,
>
> On Thu, Feb 10, 2011 at 9:22 AM, Mulyadi Santosa
> wrote:
>> On Th
Hi all,
How do I map some space between kernel and user space. Can anyone
point me in to right direction. I was trying to map the packets from
my netfilter function to kernel user space, to avoid over head of
copying. Thanks in advance.
--
Regards,
Sri
ce. Thanks in advance
--
Regards,
Sri.
___
Kernelnewbies mailing list
Kernelnewbies@kernelnewbies.org
http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies
Thanks Santosa, Not much is mentioned in the link you mentioned.
I looking for more of explanation and optimal implementation. Any
reference would be good too.
--Sri
On Mon, Feb 7, 2011 at 9:52 PM, Mulyadi Santosa
wrote:
> On Tue, Feb 8, 2011 at 06:29, Sri Ram Vemulpali
> wrote:
Can anyone point me to implementation of buddy allocator, with
efficient data structures used. Thanks in advance.
I am trying to get another thought or implementation on code.
--
Regards,
Sri.
___
Kernelnewbies mailing list
Kernelnewbies
call to getpid(2) will set the
attribute for the main thread of the thread group."
To whom I should pass the id. I did not understood.
Thanks,
Sri.
On Fri, Feb 4, 2011 at 2:29 PM, Christoph Lameter wrote:
> On Fri, 4 Feb 2011, Sri Ram Vemulpali wrote:
>
>> I have doubt re
.
--
Regards,
Sri.
___
Kernelnewbies mailing list
Kernelnewbies@kernelnewbies.org
http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies
Hi all,
I am trying to find detailed explanation of preemption option
in config. For desktop, server, and low-latency desktop. Can anyone
explain in what scenarios these are useful.
Thanks in advance
--
Regards,
Sri.
___
Kernelnewbies
tion would do for me. Thanks in advance
--Sri
On Wed, Feb 2, 2011 at 2:16 AM, Mulyadi Santosa
wrote:
> On Wed, Feb 2, 2011 at 14:08, Sri Ram Vemulpali
> wrote:
>> Hi all,
>>
>> I know that when a thread in an application do invalid memory
>> reference, OS gene
,
Sri.
___
Kernelnewbies mailing list
Kernelnewbies@kernelnewbies.org
http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies
explanation.
--
Regards,
Sri.
___
Kernelnewbies mailing list
Kernelnewbies@kernelnewbies.org
http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies
*name;
#ifdef CONFIG_LOCK_STAT
int cpu;
unsigned long ip;
#endif
};
Can anyone help me explain, how this struct helps the spinlock. Why do
we need lockdepth.
Thanks for help in advance.
--
Regards,
Sri
Thanks for all explanation. It really helped to understand.
Sri
On Mon, Jan 31, 2011 at 1:03 PM, Manish Katiyar wrote:
> On Mon, Jan 31, 2011 at 9:03 AM, Sri Ram Vemulpali
> wrote:
>> Hi all,
>>
>> /*
>> * Check at compile time that something is of a particular t
thanks for all explanation, it really helped to refine my code
Sri
On Mon, Jan 31, 2011 at 12:58 PM, Rajat Sharma wrote:
>> Is is not that Code A is wrong, for not mentioning cobbler list
>> 'memory' to indicate memory contents are getting updated.
>> Please rectify
#define typecheck_fn(type,function) \
({ typeof(type) __tmp = function; \
(void)__tmp; \
})
Can anyone help me, explain the above code typecheck. How does
(void)(&__dummy == &__dummy2) evaluates to 1
I appreciate any explain.
not
mentioned
Is is not that Code A is wrong, for not mentioning cobbler list
'memory' to indicate memory contents are getting updated.
Please rectify me, if I am wrong.
Also, what does '+m' constraint mean, if I use in inline assembly.
--
Regards,
Sri.
__
Code A it was not
mentioned
Is is not that Code A is wrong, for not mentioning cobbler list
'memory' to indicate memory contents are getting updated.
Please rectify me, if I am wrong.
--
Regards,
Sri.
___
Kernelnewbies mailing list
Kernelnewbies@kernelnewbies.org
http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies
Hi,
Can anyone point me to intel multicore datasheet of system
programming guide or developers guide. I searched on Intel website,
which I found programming guides for processor arch, but not for
multicore archs. Please share if anyone has this information.
--
Thanks,
Sri
Hi,
Can anyone help me explain how messaging works in linux kernel. I am
very confused with mqueue_inode_info struct. Thanks in advance.
--
Regards,
Sri.
___
Kernelnewbies mailing list
Kernelnewbies@kernelnewbies.org
http://lists.kernelnewbies.org
64 matches
Mail list logo
