On Mon, Apr 25, 2022 at 1:32 PM Philipp Hortmann <
philipp.g.hortm...@gmail.com> wrote:
> Hi,
>
> in this patch:
> [PATCH 4/5] staging: vt6655: Replace two VNSvInPortD with ioread64_lo_hi
>
> I tried to combine two reads in one.
>
> if (ww == W_MAX_TIMEOUT)
> return false;
On Thu, Jul 9, 2020 at 5:24 AM Tomek The Messenger <
tomekthemessen...@gmail.com> wrote:
> Hi
> On the soc on which I work there is issue with unmouting some
> partitions/directories during /sbin/reboot, here is some example:
>
> [ OK ] Stopped target Local File System.
> Unmouting Temporary
On Fri, Oct 25, 2019 at 2:16 AM Irfan Ullah (울라 이르판)
wrote:
> Dear All,
> I have developed a kernel module consists of one source file that sends
> and receives message to the user space. I have spitted the source code in
> two files, and now I am trying to develop kernel module from these
any pointers?
On Fri, Jul 26, 2019 at 4:56 PM Abu Rasheda wrote:
> Hello,
>
> I understand how the computer running Linux would wake up from USB based
> ethernet from S3 (suspend) state. But, I am missing some piece of
> information for WOL on USB ethernet from S5 (shutdown)
me out a book or explain?
Thanks.
Abu Rasheda
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On Tue, Jun 5, 2018 at 1:51 AM, Ozgur Kara wrote:
>
>
> 05.06.2018, 08:57, "valdis.kletni...@vt.edu" :
> > On Mon, 04 Jun 2018 15:49:37 -0700, Abu Rasheda said:
> >
> >> Any recommendations what device driver is missing and open source
> >> com
Hello,
I am an experienced Linux kernel and driver developer and have some time! I
like to develop a driver for Linux open source.
Any recommendations what device driver is missing and open source
community could benefit from a new driver or enhance some existing driver?
Where could I go for
On Sun, Nov 23, 2014 at 3:09 AM, Paul Bolle pebo...@tiscali.nl wrote:
The depends on line you quoted was added in v2.6.32, which is still
supported, so the tree you're using might not be seen as extremely old
by everyone.
I think it i 3.6.3x where x is I think 4
The above is a verbose way to
I have been trying to use SD card on Broadcom's 4709 eval board. Linux
kernel tree provided with SDK seems to have few SDIO drivers, but non
of them seems to be working or more accurately, loading them does not
list device in /proc/devices, so I can create block file to mount it.
After googling
depends on B43 SSB_SDIOHOST_POSSIBLE EXPERIMENTAL,
EXPERIMENTAL was removed in v3.9. So this concerns a pre-v3.9 tree?
Yes, it is 2.6 kernel. I know this is extremely old.I just want to have SD
card working, any suggestions ?
off the above B43 is only shows up in arch/ppc,
You mean
1. It called TempOS. It is a kernel for educational purpose too.
http://tempos-project.org
The project is listed in OSDev Wiki too http://wiki.osdev.org/Projects
2. Here's another nice one:
https://fosdem.org/2014/schedule/event/04_uk_escape
3. take a look at that [0], it's a small
On Fri, Apr 11, 2014 at 3:10 AM, Varun Sharma vsd...@gmail.com wrote:
Hi,
if we off tso (tcp segmentation offload) on sending side , *TCP
Bidirectional* test sending throughput decrease as compare to *TCP
Unidirectional *test sending throughput .
whereas if we on tso(tcp segmentation
On Thursday, April 3, 2014, Oleg A. Arkhangelsky syso...@yandex.ru wrote:
Hello all,
We've got very strange behavior when testing IP packet forwarding
performance
on Sandy Bridge platform (Supermicro X9DRH with the latest BIOS). This is
two
socket E5-2690 CPU system. Using different PC
compiled kernel module on this machine, perf can get path
from the binary and locate the source. enjoy.
On Fri, Dec 6, 2013 at 7:14 PM, Abu Rasheda rcpilot2...@gmail.com wrote:
Guys,
I want to annotate Linux kernel module with c-source using perf tool.
Is it possible ? can someone points me
rcpilot2...@gmail.com wrote:
I have my implementation of socket APIs,
I sock_unregister(AF_INET); sock_register(inet_family_ops), this
replaces
kernel resident socket related calls with my socket related calls. My code
is loaded as kernel module.
My question, is Linux kernel able to call
I have my implementation of socket APIs,
I sock_unregister(AF_INET); sock_register(inet_family_ops), this
replaces kernel resident socket related calls with my socket related calls.
My code is loaded as kernel module.
My question, is Linux kernel able to call its own socket call more
I am running a tool that is a packet generator.
With that tool i am able to achieve line/link rate on my 1Gbps network.
I have two queries
Query 1) When i run the same tool on 10Gbps network i am able to achieve
only 5Gbps rate.( by network i mean i have two machines with Centos 6.4
On Sun, Feb 24, 2013 at 11:23 PM, valdis.kletni...@vt.edu wrote:
On Sun, 24 Feb 2013 21:37:48 -0800, Abu Rasheda said:
tmp_long_ptr = ((long_ptr 0x8000) ? (long_ptr |
0x8000) : (long_ptr 0x));
This will not do what you think it does when compiled
I am trying to dump some kernel data structure (walk e.g. task or file
data structure on x86_64 arch). Sometime accessing through a pointer,
pointer may not be NULL, but pointing to invalid address due to garbage
value.
What I am looking for is range of address which are valid for kernel
data
On Sunday, February 24, 2013, Abu Rasheda wrote:
I am trying to dump some kernel data structure (walk e.g. task or file
data structure on x86_64 arch). Sometime accessing through a pointer,
pointer may not be NULL, but pointing to invalid address due to garbage
value.
What I am looking
On Tue, Feb 5, 2013 ...
http://www.linux-arm.org/LinuxBootLoader/SMPBoot
http://duartes.org/gustavo/blog/post/how-computers-boot-up
for i86
http://duartes.org/gustavo/blog/post/how-computers-boot-up
Does something similar exist for MIPS ?
Thanks
On Wed, Feb 6, 2013 at 3:53 AM, sandeep kumar coolsandyfor...@gmail.comwrote:
Dear All
FYI:
I got the below data in my board...
For Zimage:
Copy from eMMC to RAM(bootloader) other stuff in bootloader -- 200msec
Kernel relocation --- 1msec
Kernel uncompression -- 700msec
Total time taken
I modified my module (m.c). Still sending buffer from user space using
ioctl, but instead of copying data from buffer provided by user, I have
allocated (kmalloc) a buffer and I copy from this buffer to another kernel
buffer which is allocated each time this module ioclt is invoked.
Hello Abu,
I had to include linux/module.h or an error was issued about
THIS_MODULE.
I am running this tool on Scientific Linux 6.0, which is 2.6.32 kernel. I
know this is old but this is what I have for my product.
What Kernel version are you using? I'm trying to compile it and I'm
peter.se...@gmail.com wrote:
Hi again!
Hi
How did you call from Kernel module?
In original code, copied data is dmaed and in experimental code data is
dropped.
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the behavior.
Abu Rasheda
m.tgz
Description: GNU Zip compressed data
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On Wed, May 30, 2012 at 10:35 PM, Mulyadi Santosa
mulyadi.sant...@gmail.com wrote:
Hi...
On Thu, May 31, 2012 at 4:44 AM, Abu Rasheda rcpilot2...@gmail.com wrote:
as I increase size of buffer, insns per cycle keep decreasing. Here is the
data:
1k 0.90 insns per cycle
8k 0.43 insns
I did another experiment.
Wrote a stand alone module and user program which does ioctl and pass
buffer to kernel module.
User program passes a buffer through ioctl and kernel module does
kmalloc on it and calls copy_from_user, kfree and return. Test program
send 120 gigabyte data to module.
If
On Wed, May 30, 2012 at 2:44 PM, Abu Rasheda rcpilot2...@gmail.com wrote:
I did another experiment.
Wrote a stand alone module and user program which does ioctl and pass
buffer to kernel module.
User program passes a buffer through ioctl and kernel module does
kmalloc on it and calls
Hi,
I am working on x8_64 arch. Profiled (oprofile) Linux kernel module
and notice that whole lot of cycles are spent in copy_from_user call.
I compared same flow from kernel proper and noticed that for more data
through put cycles spent in copy_from_user are much less. Kernel
proper has 1/8
What I meant here is, there must be difference speed when you copy
onto something contigous vs non contigous. IIRC at least it will waste
some portion of L1/L2 cache.
When you say, LKM area is prepared with vmalloc is it for code /
executable you refering too ? if so will it matter for data
On Thu, May 3, 2012 at 6:54 AM,
mic...@michaelblizek.twilightparadox.com wrote:
Hi!
On 16:33 Thu 03 May , Suresh Kumar Subramanian wrote:
Hi,
I am building the router based on linux kernel.
The hardware details are below,
2 - 64 bit quad core processor (3Ghz core).
RAM- 24GB RAM.
I want to embark on journey of learning Linux networking stack. I want
suggestions, what is best way to do this. Any book recommendation, any
documentation which might exist.
Thanks.
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I am inserting packets into Linux stack and they are accepted by net_rx
function, but are latter dropped. What tools are available in Linux kernel
to for debugging this issue.
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On Wed, Sep 21, 2011 at 10:26 PM, Abu Rasheda rcpilot2...@gmail.com
wrote:
I am inserting packets into Linux stack and they are accepted by
net_rx function, but are latter dropped. What tools are available in Linux
kernel to for debugging this issue.
I discovered that /proc/net/snmp files
On Fri, Aug 5, 2011 at 5:10 PM, Akash email2akashj...@gmail.com wrote:
Use #if like
*
*#define KERNEL_VERSION(a,b,c) (((a) 16) + ((b) 8) + (c))
#if LINUX_VERSION_CODE = KERNEL_VERSION(2, 6, 33)
// New socket create function
#else
// Old socket create function
I am compiling my driver and have run into following scenario.
Socket create function got a new parameter in Vanila kenrel 2.6.33. while
Scientific Linux has it back ported to 2.6.32. How do I handle this kind of
situation ? so that my driver compiles for both kernel versions.
Thank to all of you who replied. I will check these out.
Abu Rasheda
On Sun, May 22, 2011 at 9:40 PM, sanjeev sharma
sanjeevsharmae...@gmail.com wrote:
Hey,
You can refer Autotest.
Thanks
Sanjeev sharma
On Sat, May 21, 2011 at 5:03 AM, Abu Rasheda rcpilot2...@gmail.com wrote:
Can
I am testing my driver on much faster host processor and facing
following issues:
My host is too powerful and it can fill up device buffer queue very fast.
What kind of device is this?
its a networking device
It sounds like a broken device, you need to be able to handle large data
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