Hi,
Here's an exhaustive list
http://man7.org/linux/man-pages/man2/syscalls.2.html of Linux syscall,
but I can't find get_user() and put_user() API. Why is it so? What am I
missing?
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My first doubt is why ARM is having PCI bus... ? I think it has AMBA Bus ...
On June 1, 2014 at 11:40 PM AYAN KUMAR HALDER ayankum...@gmail.com wrote:
Hi,
I am working with Linux hibernation framework on ARM based custom SOC
which has SATA controller on PCI bus.
I see that when the system
These two are not the system calls. they are the Kernel API's to transfer the
data from user address space to the kernel address space.
please see:
http://lxr.free-electrons.com/source/arch/x86/include/asm/uaccess.h#L239
http://lxr.free-electrons.com/source/arch/x86/include/asm/uaccess.h#L239
I am new to Linux kernel stuffs. How are Kernel API and syscalls differ
from each other?
On 2 June 2014 13:43, Varka Bhadram var...@cdac.in wrote:
These two are not the system calls. they are the Kernel API's to
transfer the data from user address space to the kernel address space.
On Mon, Jun 2, 2014 at 1:49 PM, Dipanjan Das mail.dipanjan@gmail.com
wrote:
I am new to Linux kernel stuffs. How are Kernel API and syscalls differ
from each other?
syscalls are system calls which which will be used by your application in
user space. syscalls table will map the userspace
http://stackoverflow.com/questions/20172111/difference-between-system-api-and-system-call-api
http://stackoverflow.com/questions/17219898/what-is-the-difference-between-linux-kernel-api-system-calls-system-inter
These two links will give the diffrence b/w them...
On June 2, 2014 at 1:49 PM
Hi Varka,
This is a arm based custom platform in which we have both AMBA bus as
well as pci bus (pci slots which can fit addon cards).
There is no restriction(as far as I understand) that ARM based
platforms cannot have PCI bus.
Regards,
Ayan Kumar Halder
On Mon, Jun 2, 2014 at 1:28 PM, Varka
Hi all,
Is it possible to set the skb-mark flied of the linux socket
buffer from the application?
Suppose application is using the Raw socket of Ethernet interface and it
sends and receive packets to that interface. However, application wants to
set the skb-mark filed of the socket
Hello.
Yes, you can do it with SO_MARK socket option.
From socket man:
SO_MARK (since Linux 2.6.25)
Set the mark for each packet sent through this socket (similar
to the netfilter MARK target but socket-based). Changing the
mark can be used for
Hi Ayan Kumar Halder,
Ya you are right. But ARM only supports AMBA bus, your board may have some
controller
which acts as bridge b/w PCI and AMBA.
Regards,
Varka Bhadram
On June 2, 2014 at 2:29 PM AYAN KUMAR HALDER ayankum...@gmail.com wrote:
Hi Varka,
This is a arm based custom platform in
hello every one !
I am trying to trace Linux kernel booting process for ARM architecture.
Right now i am doing it manually . I am getting problem in reading assembly
codes (like in head.s and other files) . Can any body tell me the correct
way of tracing the linux kernel booting process ? Is
On Mon, 02 Jun 2014 21:23:16 +0530, Saurabh Jain said:
I am trying to trace Linux kernel booting process for ARM architecture.
Right now i am doing it manually . I am getting problem in reading assembly
codes (like in head.s and other files) . Can any body tell me the correct
way of tracing
Hi,
On Mon, Jun 2, 2014 at 7:53 PM, Saurabh Jain saurabh4768j...@gmail.com wrote:
I am trying to trace Linux kernel booting process for ARM architecture.
Right now i am doing it manually . I am getting problem in reading assembly
codes (like in head.s and other files) . Can any body tell me
On Mon, Jun 2, 2014 at 12:53 PM, Saurabh Jain saurabh4768j...@gmail.com
wrote:
hello every one !
I am trying to trace Linux kernel booting process for ARM architecture.
Right now i am doing it manually . I am getting problem in reading assembly
codes (like in head.s and other files) . Can
Hi!
On linux-next (next-20140530) the UML out-of-tree build is broken.
---cut---
rw@azrael:~/linux-next (next-20140530) make defconfig ARCH=um O=/mnt/o
GEN ./Makefile
*** Default configuration is based on 'x86_64_defconfig'
#
# configuration written to .config
#
rw@azrael:~/linux-next
On Mon, 02 Jun 2014 20:56:35 +0200, Richard Weinberger said:
1. Find out which commit broke the build (i.e. using git bisect)
Any hint on a starting value for 'git bisect good v3.mumble'? :)
pgpeXYL4ntWD9.pgp
Description: PGP signature
___
Am 02.06.2014 21:06, schrieb valdis.kletni...@vt.edu:
On Mon, 02 Jun 2014 20:56:35 +0200, Richard Weinberger said:
1. Find out which commit broke the build (i.e. using git bisect)
Any hint on a starting value for 'git bisect good v3.mumble'? :)
I don't really now. I don't do out-of-tree
On Mon, 02 Jun 2014 21:10:10 +0200, Richard Weinberger said:
I don't really now. I don't do out-of-tree builds on -next.
Randy said its there for a few weeks.
A 'v3.14-rc7' or similar tag from Linus's tree is good enough,
as you can't do a sane bisect between (say) next-20140501 and
On Fri, May 30, 2014 at 3:19 PM, Rajat Sharma fs.ra...@gmail.com wrote:
you have kdump enabled crashkernel=512M@128M
On Fri, May 30, 2014 at 2:38 PM, Vipul Jain vipu...@gmail.com wrote:
On Fri, May 30, 2014 at 12:32 PM, Vipul Jain vipu...@gmail.com wrote:
Hi All,
I have a quick question
Hi Pranay,
Thanks for pointing this out! I was wondering if it is possible to use
a remote GPU through /dev/gpu.
-Riya
On Sat, May 31, 2014 at 11:35 PM, Pranay Srivastava pran...@gmail.com wrote:
Hi Riya,
It's actually not the major and minor numbers, sure they decide the
driver and the
Hey guys,
I have a module which defines a specific print function, and another
module that uses said function. From the first module I have used
EXPORT_SYMBOL(function_1). From within the second module I would like to
rebind that function to another printing function, and once I'm
finished,
Hi All,
I would like to write script to get Windows Device Manager like
functionality to check all the devices present on my Linux machine. What
all are the ways to get about this, is iterating sysfs is the way? Or is
there any other elegant way?
Thanks for support.
Jayesh Kumar
Hi Saurabh,
You can take a look at the DOC mentioned here. Its kind of gives an
overview (not in depth) of every function in Booting process in ARM
linux :
http://www.linux-arm.org/pub/LinuxPlatform/RealViewLink/Booting_ARM_Linux_SMP_on_MPCore.doc
Its a good start to dive into the internals.
On Tue, Jun 03, 2014 at 09:10:54AM +0530, JAYESH TANK wrote:
Hi All,
I would like to write script to get Windows Device Manager like
functionality
to check all the devices present on my Linux machine. What all are the ways to
get about this, is iterating sysfs is the way? Or is there any
On Mon, Jun 02, 2014 at 08:29:16PM -0700, Peter Tosh wrote:
Hey guys,
I have a module which defines a specific print function, and another
module that uses said function. From the first module I have used
EXPORT_SYMBOL(function_1). From within the second module I would like to
rebind that
Is this just a horrible idea in general? Can you give some kind of
general explanation?
On Mon, 2014-06-02 at 20:57 -0700, Greg KH wrote:
On Mon, Jun 02, 2014 at 08:29:16PM -0700, Peter Tosh wrote:
Hey guys,
I have a module which defines a specific print function, and another
module
On Tue, Jun 3, 2014 at 7:42 AM, riya khanna riyakhanna1...@gmail.com wrote:
Hi Pranay,
Thanks for pointing this out! I was wondering if it is possible to use
a remote GPU through /dev/gpu.
You would need to modify the nfs client code i think for this. But
since it's a device file and if you
Hi,
I came across this discussion in StackExchange
http://unix.stackexchange.com/questions/61891/linux-kernel-3-2-syscalls.
Does anyone have any idea on this?
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On Mon, Jun 02, 2014 at 09:19:41PM -0700, Peter Tosh wrote:
Is this just a horrible idea in general? Can you give some kind of
general explanation?
Messing with symbol address is a horrible idea in general.
Step back, what problem are you trying to solve that ended up with this
type of
Hi,
Like there is section #2 of man pages dedicated to syscalls, is there any
official way to get the list of all supported Kernal APIs?
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On Tue, Jun 03, 2014 at 09:45:33AM +0530, Dipanjan Das wrote:
Hi,
I came across this discussion in StackExchange. Does anyone have any idea on
this?
Yes, the code looks correct, the question asked is incorrect :)
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Hi,
I'm trying to understand how to use the ISA DMA controller with my PC. What I'm
not able to understand is that why is it required to have an IRQ line
associated with my device that is going to initiate the DMA?
As I understand DMA controller would be signalling CPU[Correct?]
so this IRQ
It's currently being done in a user space application which I am porting
to a kernel module. Is there some other way of accomplishing the same
thing safely?
On Mon, 2014-06-02 at 21:47 -0700, Greg KH wrote:
On Mon, Jun 02, 2014 at 09:19:41PM -0700, Peter Tosh wrote:
Is this just a horrible
A: No.
Q: Should I include quotations after my reply?
http://daringfireball.net/2007/07/on_top
On Mon, Jun 02, 2014 at 10:10:16PM -0700, Peter Tosh wrote:
It's currently being done in a user space application which I am porting
to a kernel module. Is there some other way of accomplishing the
Is in incorrect because the execve() call in the code is to the libc stub
but not the actual syscall itself?
On 3 June 2014 10:19, Greg KH g...@kroah.com wrote:
On Tue, Jun 03, 2014 at 09:45:33AM +0530, Dipanjan Das wrote:
Hi,
I came across this discussion in StackExchange. Does anyone
On Tue, Jun 03, 2014 at 11:03:25AM +0530, Dipanjan Das wrote:
Is in incorrect because the execve() call in the code is to the libc stub but
not the actual syscall itself?
Yes.
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Hi All,
When i am trying to delete an interface from the application,
while traffic is flowing through it, kernel throws the message
unregister_netdevice: waiting for eth0 to become free. Usage count = 4
which means network device usage counter is more that zero and there are 4
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