If I send the same signal several times, some of the signals disappear
"how to send SIGINT signal multiple times" shows a similar situation.But when I sent the same signal (ex. SIGIO) several times, I received only some of them (2 of 10).When signal_handler is running,...
View Articlekernel keeps dying in jupyter notebook
Whenever I start jupyter notebook and create a new python 3 notebook I get an error message saying kernel has died. I have tried deleting and installing ipython, python3.6.5, and jupyter notebook but I...
View Articlewill linux tcp purge the pkts in qdisc when do tcp_close?
I noticed that when do tcp_close, it will purge recv queue & write queue, however, i have not found that it tries to purge the queue in Qdisc. I missed sth or it has indeed not purged the packets...
View ArticleIs there any way to figure out that child process was killed with SIGKILL by...
I have a situation where there is a nonroot (so i can't read kernel logs) parent process and its child, the child may have been killed with SIGKILL by the kernel for consuming a lot of memory. When it...
View ArticleWhat does value of 'current_task' mean in different version of linux kernel?
I know that current_task holds the address of task_struct * pointer for each cpu.However, when reading this symbol value in different kernel version, I got diverse result.In 4.19.65 kernel, I grabbed...
View ArticleHow to finding all runnable processes
I'm learning about the scheduler and trying to print all runnable proceeses. So I have written a kernel module that uses the for_each_process macro to iterate over all processes, and prints the ones at...
View ArticleMultiboot 1 Boot Information total size
Is there a quick and reliable way find out the total size of the Multiboot 1 boot information in memory?Just to clarify: I'm not asking about the size of the structure pointed to by the value in the...
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Read and Write to Char Device in Linux
EDITED Previously I said it became null at device_write but it's actually device_read.I am trying to write a simple program which read and writes to the character device. The problem I have is "top"...
View ArticleHow do you kill a persistent running process in python on a mac?
I ran the code,from google.colab import files uploaded = files.upload() Ever since, any new jupyter notebook i open in python shows a running process that i have failed to kill using Ctrl + C I have...
View ArticleKernel panic - not syncing : Fatal exception
I am working on vagrant(2.2) and oracle virtual box(version-6.0.14). i set vb.gui=true in vagrant file. when i try to execute command in git bash vagrant up -d i got error as shown in image....
View ArticleOpen and read files in kernel module
I am currently working on a project which involves opening and reading a file from user space to take some data, but this has to be done from a device driver. I'm aware of why this shouldn't be done...
View ArticleKernel restarting during Tensorflow Lite model Inference (Python)
I am trying to use TensorFlow Lite model to make predictions for the input data. The Neural Network was trained using Keras and then was converted to TFLite standard model as following:keras_file =...
View ArticleHow to add a different kernel for each version of Julia in Jupyter
I have several version of Julia on my machine for which I created an alias in my bash_profile as follows: # Setting Path for Julia alias...
View ArticleHow to access a kernel variable using BPF?
For example, to access the skb variable in function ip_rcv:int ip_rcv(struct sk_buff *skb, struct net_device *dev, struct packet_type *pt, struct net_device *orig_dev) { ... } I searched the Internet...
View Articleheaders not working at a kernel level on eBPF code
So I'm developing something on eBPF.I needed to use the unistd.h header because I wanted to use sleep function. However, I realized that when I type in#include <unistd.h> these headers don't get...
View ArticleInvalid Process Attach in KDMF driver
I am trying to implement a driver, which will read/write memory in the user-space process. For that, I need to get the process base address. I am using this function for that:PVOID...
View ArticleShowing Error while using train_test_Split method to on Kaggle kernal. Help...
Can any one expalin what is the error and how to aviod? The same code actually works in my Jupyter and Spider environment. Also I didn't understand why this isn't working on kaggle kernel. Below is my...
View ArticleUbuntu Kernel Panic- not syncing;attempt to kill init ! exitcode=0x0000000b
I was trying to install oracle 19c for Ubuntu. I was having problem with the yum repository configuration, so searching online I ran the command yum install -y...
View ArticleCannot find a way to generate random numbers in CUDA device code continously...
This question already has an answer here:Generating random number within Cuda kernel in a varying range 2 answersI am trying to write a raytracer accelerated with CUDA, but I need to be able to...
View ArticleJupyter failed to start kernel
So I just installed anaconda 3 and ran "jupyter notebook" in the anaconda prompt, which opened jupyter. However, when I opened a new python 3 notebook, I couldn't run any code because of kernel error...
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