Re: Huge difference in build sizes

On Wednesday 03 December 2014 09:45 AM, Greg KH wrote: > On Wed, Dec 03, 2014 at 09:26:34AM +0530, Raghavendra wrote: >> Hello Greg, >> >> Thank you for the reply. >> >> On Tuesday 02 December 2014 11:46 PM, Greg KH wrote: >>> On Tue, Dec 02, 2014 at 02:38

Re: Huge difference in build sizes

Hello Greg, Thank you for the reply. On Tuesday 02 December 2014 11:46 PM, Greg KH wrote: > On Tue, Dec 02, 2014 at 02:38:27PM +0530, Raghavendra wrote: >> Hello all, >> >> I am using Ubuntu-12.04 which came with 3.2 kernel. Parallel to this, >> I've compiled a

Re: Huge difference in build sizes

Hello Tinti, Thank you for the reply. On Tuesday 02 December 2014 05:21 PM, Vinícius Tinti wrote: > On Tue, Dec 2, 2014 at 7:08 AM, Raghavendra wrote: >> Hello all, >> >> I am using Ubuntu-12.04 which came with 3.2 kernel. Parallel to this, >> I've compiled and i

Huge difference in build sizes

dule : $ du -sh hello.ko It shows : 4.0k for the Ubuntu's 3.2 kernel 56k for the custom kernel that I've compiled What could be the reason for this huge amount of difference of storage space in spite of using the same config f

Re: Debug Kernel Modules With KGDB

Hi Zhang, On Monday 01 December 2014 04:32 PM, Freeman Zhang wrote: > Hi Raghavendra, > > Thanks for your reply, but `sudo` doesn't solve the problem :( Well then I guess 'sudo' isn't implemented in android. Any way, ultimately you may wan't to login as root

Re: [eudyptula] has anyone received a gift after completing the challenge ?

On Monday 01 December 2014 04:03 PM, Vinícius Tinti wrote: > On Mon, Dec 1, 2014 at 1:54 AM, Raghavendra wrote: >> On Friday 28 November 2014 02:52 PM, Denis Pithon wrote: >> >> Hi all, >> >> I have finished the challenge some month ago and wonder if somebody h

Re: Debug Kernel Modules With KGDB

On Monday 01 December 2014 03:26 PM, Freeman Zhang wrote: Hi list, I've been trying to setup a debug environment for linux kernel(v3.4,Android,ARM) with kgdb. It worked fine untill I tried to use it to debug a module. Under the instruction from LDD, I add module debug info in gdb with command:

KGPU : any scope?

supported by most of the GPUs. As per my perspective, I see a huge learning opportunity here. But, practically how fas is it useful? Any suggestions would be helpful. Thanks R

Re: [eudyptula] has anyone received a gift after completing the challenge ?

from them. Regards, Raghavendra --- [ C-DAC is on Social-Media too. Kindly follow us at: Facebook: https://www.facebook.com/CDACINDIA & Twitter: @cdacindia ] This e-mail is fo

Re: How can I wake up one process from the wait queue?

On Thursday 30 October 2014 02:02 PM, Rock Lee wrote: Hi, everyone I am implementing a simple driver to experiment with wait queue.Two or more read processes block until a write process changes a flag and call wake_up_interruptible().I expect that a write process will only wake up one read p

Re: booting kernel with kvm

On 15/10/2014 11:27 PM, harisha ja wrote: Hi Raghavendra, Thanks for your response. Yes that was an issue and I corrected it. But I see kvm is trying to boot the kernel and I still see those tracebacks and it does not do anything after that. It is not giving back the console. That is

Re: booting kernel with kvm

usly. Thanks Harish ___ Kernelnewbies mailing list Kernelnewbies@kernelnewbies.org http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies Raghavendra ---

Issue while reading from tty driver

at is trying to read the data is blocked? Any specific flags or minimum buffer count, etc? Thanks, Raghavendra --- [ C-DAC is on Social-Media too. Kindly follow us at:

Re: Process simulator

On Friday 01 August 2014 11:16 AM, Niamathullah sharief wrote: Dear Friends, Can anyone tell me how to find the process execution time in linux? I mean how much time it is taking to execute any process in our conventional processor. Please help me

Re: DMA over USB

On Wednesday 02 July 2014 11:55 AM, Greg KH wrote: > On Wed, Jul 02, 2014 at 11:39:36AM +0530, Raghavendra wrote: >> On Wednesday 02 July 2014 11:42 AM, Greg KH wrote: >>> On Wed, Jul 02, 2014 at 11:32:47AM +0530, Raghavendra wrote: >>>> On Wednesday 02 July 2014 11:

Re: DMA over USB

On Wednesday 02 July 2014 11:05 AM, Chan Kim wrote: > Hi Raghavendra, > In my case, we used USB host design from opencore. And the driver (I don't > know where it came from. it's similar to sl811-hcd.c from cypress) writes or > reads the data to /from the USB host. Not usi

Re: DMA over USB

On Wednesday 02 July 2014 11:42 AM, Greg KH wrote: > On Wed, Jul 02, 2014 at 11:32:47AM +0530, Raghavendra wrote: >> On Wednesday 02 July 2014 11:02 AM, Greg KH wrote: >>> On Tue, Jul 01, 2014 at 10:29:39PM -0700, Greg KH wrote: >>>> On Wed, Jul 02, 2014 at 10:40

Re: DMA over USB

On Wednesday 02 July 2014 11:02 AM, Greg KH wrote: > On Tue, Jul 01, 2014 at 10:29:39PM -0700, Greg KH wrote: >> On Wed, Jul 02, 2014 at 10:40:21AM +0530, Raghavendra wrote: >>> Hello, >>> >>> I have a query regarding DMA(Direct Memory Access) for the usb devic

DMA over USB

. Further more, if it is possible for the USB devices, then can this support be also extended towards low-end protocols such as I2C or SPI? Thanks, Raghavendra --- [ C-DAC is

sysfs bind/unbind attributes usage

i2c adapter devices). Now how are they different from the bind/unbind attributes, because as far as I know, even they do the same thing. Could any one guide me through any documentation regardi

Re: issues dealing with kobjects

On Friday 20 June 2014 11:31 AM, Raghavendra wrote: > Hello all, > > I am facing a small issue dealing with kobjects. > I am writing a simple i2c driver for which I would like to export a few > sysfs attributes(files). > The files are many, so I've decided to pack them into

issues dealing with kobjects

m I going wrong or is there any better way to create directories in sysfs? I am building this module against 3.13.2 kernel. Thank you. Raghavendra. --- [ C-DAC is on Soc

git merge issues

result. Now my question is that do I need to solve the merging issue manually or is there any way to solve this using git? Thank you. Raghavendra --- [ C-DAC is on Social

Patch submission issue

tiple things in the same patch, a single patch should only do 1 thing. So break this up into multiple patches. " And my patch looks something like this : From 7effd3d61c6ce08cd44df0a5ba3d1e9ac9ab5a98 Mon Sep 17 00:00:00 2001 From: Raghavendra Date: Tue, 10 Jun 2014 22:04:52 +0530 Subj

Sample source code or links to platform driver development

. Thanks, Regards, Raghavendra. ___ Kernelnewbies mailing list Kernelnewbies@kernelnewbies.org http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies

Query on vfs interface

gards Raghavendra G ___ Kernelnewbies mailing list Kernelnewbies@kernelnewbies.org http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies

Re: Re: which local FS supports concurrent direct IO write?

hat I saw in xfs_file_dio_aio_write code, it uses EXCL only if there is unaligned IO or there are cached pages to be invalidated after shared lock is obtained *but* it demotes that lock to SHARED just before generic_file_direct_write. Is there any popular FS that supports concurr

Re: which local FS supports concurrent direct IO write?

157.html Also the behavior of Ext4 under dioread_nolock is supported by XFS by default and in a much better way. Also Ext4 is the only one which uses DIO_LOCKING while doing direct io. Regards, -- Raghavendra Prabhu GPG Id : 0xD72BE977 Fingerprint: B93F EBCB 8E05 7039 CD3C A4B8 A

Re: Re: Packet drop while using BPF filter

* On Sat, Dec 24, 2011 at 09:57:50PM +0530, Mukesh Yadav wrote: Hi Raghavendra, " /proc/sys/net/core/bpf_jit_**enable " is not present on machine. Seems kernel need to be configured for these. Yes, it is a fairly new option -- CONFIG_BPF_JIT=y Btw CPU scaling issue is resolv

Re: Packet drop while using BPF filter

ticular amount of >traffic. > >Would appreciate any I/ps for reducing load at kernel for packet >filtering(Odd/Even IP distribution) > > >Cheers >Mukesh >_______ >Kernelnewbies mailing list >Kernelnewbies@kernelnewbies.org >http:/