What is the gdbserver used when running linux kernel on qemu?
I am new to kernel debugging using gdb. Few days back I read that we can turn on KGDB which is a gdb server running in the kernel . We can connect to this gdbserver on kernel using the gdb client on...
View ArticleCan i have same new_root and put_old in pivot_root?
I have an un-trusted process, which is isolated with all the namespaces. This process will have its root mounted on /tmp/new_root.As described in man page, pivot_root(new_root, old_root) creates new...
View ArticleWhat is the fastest connection method to debug a windows 10/7 kernel using...
There seems to be many methods for debugging a windows 10/7, including USB or network or COMBut which of them is the fastest? I have only used COM and it seems to be really slow compared to debugging a...
View ArticleThis application required admin privileges xampp on linux
I've installed XAMPP by downloading the .run file. And now when I'm trying to open the manager-linux-x64.run file to start up server it's showing that it requires admin privileges. I've tried to change...
View ArticleSound not working Focal Fossa Ubuntu 20.04
I have been using ubuntu 20.04 recently and have a HP pavillion laptop with B&O speakers. However i am not able to hear any sound. though, Bluetooth is working fine.I have tried many solutions such...
View ArticleNo entropy issue after switching to kernel 4.9
On one of my hardware I had an entropy issue while installing centos based on kernel 3.10.To take care of that I was using haveged.Recently I switched to kernel 4.9 and I am not seeing that issue...
View ArticleSampler function not working with custom Color Kernels
Hello I've been struggling to get the sampler function working with custom Color Kernels. Below is what I've tried:extern "C" { namespace coreimage {float4 myColor3(sampler inputImage3, float...
View ArticleIs there an R function/library where I can switch between different types of...
I am working on a project where I am trying to find the KDE for a bunch of points. Currently I am using kde.R to find KDE using the standard normal kernel. I want to use different kernels and compare...
View ArticleWhy child->next points to chidren's sibling?
This is my first question.Why it can iterate child process?According to this book, this code can iterate each child process by this code:(@ Chapter 3.2.6)struct task_struct *taskstruct list_head...
View ArticleHow to remove kernel 3 and add kernel 5 in centos 7 [closed]
I'm using Centos 7 and Desktop Version.I executed this command in terminal:>> uname -r5.6.13-1.el7.elrepo.x86_64so I'm using kernel version 5 but when i executed this command:>> rpm -q...
View ArticleWhat will happen if I change kernel configuration file in /boot?
I'm trying to understand all role of /boot/config-$kernel_version file.I know I can see current kernel feature configuration from /boot/config-$kernel_version and I know I can make with my desirable...
View ArticleRemove a route using ioctl
I try to remove a route from iptable using ioctl in a opensuse machine. I open the socket fd . But when try to remove the rule the error that I get is the following No such process , Errno 3Below is...
View ArticleHow disable dm-verity on Android Devices without using ADB?
I'm building AOSP from source code, and I want to be able to flash a Google Apps package onto the ROM. However, when the phone reboots, the google apps are not applied, and someone has said that it...
View ArticleWindows System Process -- what does it do? what is it for? [closed]
On Windows, during startup, the system seems to start out by creating two processes before it does anything else. Process ID 0 is the "System Idle Process". I'm not sure if it's implemented as a real...
View ArticleHow can I really delete a dkms module in (arch) linux?
I have a dkms module I do not need anymore and I wanted to remove it. I did sudo dkms remove ... and it removed it. But when I updatet to a newer kernel, my package manager tried to build that module...
View ArticleKMDF lower Filter driver
I am writing an filter driver and want to attach the filter to more than one physical keyboard in the system.If I attach the filter to the first keyboard "\Device\KeyboardClass0" it works fine but it...
View ArticleCreating openCL buffers causes lag
So I already have a kernel which creates an array of simplex noise valuesint *landmap_flags = new int[68 * 68 * 68];_clw.CLNoise(landmap_flags, clpos, LOD, chunkSize);This works fine and allows me to...
View ArticleRestart Matlab Kernel
I'm running a Python function in Matlab, and when I make some modifications in the Python function in Python, and then run in Matlab,Matlab doesn't make the modifications, still running the function as...
View Article"address_space()" definition as a "Sparse" annotation in the linux kernel
I came across some macros with the definitions like this:#ifdef __CHECKER__# define __user __attribute__((noderef, address_space(1)))And I know those are merely to be used with sparse(__CHECKER__) and...
View ArticleHow to printk with IP address or MAC address in Linux Kernel Source Code
I have to change TCP Congestion Control algorithm a little bit by modifying Linux Kernel Source Code. But to check if the result is correct, I need to log info of MAC or IP address.I used PRINTK...
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